Microbial penicillin acylases.

[1]  G. Ei,et al.  Mutants of Escherichia coli with damaged glucose transport as organisms producing penicillin acylase , 1973 .

[2]  Kotova Ni,et al.  [Penicillin chromatography in sorbent thin layer. Quality control of 6-aminopenicillanic acid]. , 1973 .

[3]  F. Kato,et al.  Selection of Pseudomonas melanogenum KY 3987 as a New Ampicillin-producing Bacteria , 1973 .

[4]  S. C. Pan Separation of penicillins of closely related structure by partition chromatography on paper and cellulose thin-layer plates. , 1973, Journal of chromatography.

[5]  S. Igarasi,et al.  Asparaginase and glutaminase activities of micro-organisms. , 1973, Journal of general microbiology.

[6]  C. Cooney,et al.  Penicillin amidase production by bacillus megaterium , 1973, Biotechnology and bioengineering.

[7]  M. Kenig,et al.  Metabolism of Penicillins to Penicilloic Acids and 6-Aminopenicillanic Acid in Man and Its Significance in Assessing Penicillin Absorption , 1973, Antimicrobial Agents and Chemotherapy.

[8]  W. Marconi,et al.  The hydrolysis of penicillin G to 6-amino penicillanic acid by entrapped penicillin acylase. , 1973, The Journal of antibiotics.

[9]  Kalakutskiĭ Lv,et al.  [Metal content in resting and germinating spores of Actinomyces streptomycini B-6]. , 1973 .

[10]  Nys Ps,et al.  Method for determination of penicillinamidase activity , 1973 .

[11]  I. Kawamoto,et al.  Isolation of Penicillinase-deficient Mutants of Kluyera citrophila KY 3641 , 1973 .

[12]  P. Talati,et al.  Spectrophotometric Method for the Estimation of 6-Aminopenicillanic Acid , 1973, Antimicrobial Agents and Chemotherapy.

[13]  Peter Dunnill,et al.  Conversion of benzylpenicillin to 6‐aminopenicillanic acid in a batch reactor and continuous feed stirred tank reactor using immobilized penicillin amidase , 1973 .

[14]  J. Zajic,et al.  Purification and properties of L-asparaginase of Erwinia aroideae. , 1972, Canadian journal of microbiology.

[15]  Terekhova Lp,et al.  [Formation of beta-lactam antibiotics by actinomycete cultures]. , 1972 .

[16]  H. Bundgaard,et al.  A new spectrophotometric method for the determination of penicillins , 1972, The Journal of pharmacy and pharmacology.

[17]  I. Kawamoto,et al.  Some Problems Involved in Ampicillin Formation by Kluyvera's Penicillin Acylase , 1972 .

[18]  M. Lilly,et al.  The preparation and kinetics of immobilised penicillin amidase from Escherichia coli. , 1972, Biochimica et biophysica acta.

[19]  H. B. Woodruff,et al.  Cephamycins, a New Family of β-Lactam Antibiotics I. Production by Actinomycetes, Including Streptomyces lactamdurans sp. n , 1972, Antimicrobial Agents and Chemotherapy.

[20]  E. Vandamme,et al.  Separation and detection of degradation products of penicillins and cephalosporins by means of thin-layer chromatography. , 1972, Journal of chromatography.

[21]  P Dunnill,et al.  The isolation and kinetics of penicillin amidase from Escherichia coli. , 1972, Biochimica et biophysica acta.

[22]  P. Borkar,et al.  Structural requirements of inducer for the formation of penicillin acylase in Fusarium sp. 7.5-5. , 1972, The Biochemical journal.

[23]  K. Kato,et al.  Enzymatic synthesis of cephalosporins. , 1972, Journal of the American Chemical Society.

[24]  F. Lund,et al.  6 -amidinopenicillanic acids--a new group of antibiotics. , 1972, Nature: New biology.

[25]  Nys Ps,et al.  [Physicochemical properties of degradation products of 6-aminopenicillanic acid. D-4-carboxy-5,5-dimethyl-2-aminomethylthiazolidine]. , 1972 .

[26]  K. A. Holm Automated colorimetric determination of penicillin in fermentation samples using a molybdoarsenic acid-mercuric chloride reagent. , 1972, Analytical chemistry.

[27]  H. Hayes,et al.  Preparation of 7-aminocephalosporanic acid and 6-aminopenicillanic acid. , 1972, The Journal of antibiotics.

[28]  S. Elson,et al.  Inhibition of the -lactamases of Escherichia coli and Klebsiella aerogenes by semi-synthetic penicillins. , 1972, The Biochemical journal.

[29]  R. Cooper Structural studies on penicillin derivatives. 8. A possible model biosynthetic route to penams and cephems. , 1972, Journal of the American Chemical Society.

[30]  S. Hem,et al.  Effect of ionic strength on chemical stability of potassium penicillin G. , 1972, Journal of pharmaceutical sciences.

[31]  C. H. Nash,et al.  Mutations that affect antibiotic synthesis by Cephalosporium acremonium. , 1972, Canadian journal of microbiology.

[32]  K. Heusler Die Umwandlung von Penicillinen in Cephalosporine. Modifikationen von Antibiotika, 3. Mitteilung , 1972 .

[33]  M. Pollock The function and evolution of penicillinase , 1971, Proceedings of the Royal Society of London. Series B. Biological Sciences.

[34]  M. Sela,et al.  On the immunological properties of penicillins , 1971, Proceedings of the Royal Society of London. Series B. Biological Sciences.

[35]  P. G. Sammes,et al.  Chemical relationships between cephalosporins and penicillins , 1971, Proceedings of the Royal Society of London. Series B. Biological Sciences.

[36]  J. Strominger,et al.  How penicillin kills bacteria: progress and problems , 1971, Proceedings of the Royal Society of London. Series B. Biological Sciences.

[37]  E. Chain Thirty Years of Penicillin Therapy , 1971, Proceedings of the Royal Society of London. Series B. Biological Sciences.

[38]  T R Carrington,et al.  The development of commercial processes for the production of 6-aminopenicillanic acid (6-APA) , 1971, Proceedings of the Royal Society of London. Series B. Biological Sciences.

[39]  B. Phillips,et al.  Asparaginase and glutaminase activities of bacteria. , 1971, Journal of general microbiology.

[40]  B. Meyers,et al.  Cephapirin: in vitro antibacterial spectrum. , 1971, Applied microbiology.

[41]  E. Borowski,et al.  Interaction between carbenicillin and beta-lactamases from Gram-negative bacteria. , 1971, Journal of general microbiology.

[42]  C. E. Higgens,et al.  Streptomyces clavuligerus sp. nov., a β-Lactam Antibiotic Producer , 1971 .

[43]  M. Gorman,et al.  The reaction of cysteine and related compounds with penicillins and cephalosporins. , 1971, The Journal of antibiotics.

[44]  A. Wheeler,et al.  The formation of antigenic polymers in aqueous solutions of -lactam antibiotics. , 1971, Immunology.

[45]  M. Garofalo,et al.  Gas chromatographic determination of penicillins. , 1971, Analytical chemistry.

[46]  A. C. Marshall,et al.  Biological Sciences: Polymers Formed by some β-Lactam Antibiotics , 1971, Nature.

[47]  E. D. de Haan,et al.  A search for high molecular impurities in penicillin G. , 1971, International archives of allergy and applied immunology.

[48]  J. Heijenoort,et al.  Study of the N-acetylmuramyl-L-alanine amidase activity in Escherichia coli. , 1971 .

[49]  Ramanathan Nagarajan,et al.  Beta-lactam antibiotics from Streptomyces. , 1971, Journal of the American Chemical Society.

[50]  C. Allen,et al.  Arylamidase of Cephalosporium acremonium and its specificity for cephalosporin C. , 1971, Applied microbiology.

[51]  R. Plourde,et al.  "Spore plate method" for transformation of steroids by fungal spores entrapped in silica gel g. , 1971, Applied microbiology.

[52]  J. Hamilton-miller The demonstration and significance of synergism between -lactam antibiotics. , 1971, Journal of medical microbiology.

[53]  M. Misawa,et al.  ENZYMATIC SYNTHESIS OF D(-)-α-AMINOBENZYLPENIGILLIN BY KLUYVERA CITROPHILA , 1971 .

[54]  J. Hamilton-miller Use of Michaelis-Menten kinetics in the analysis of synergism between beta-lactam antibiotics. , 1971, Journal of theoretical biology.

[55]  G. Bodey,et al.  In Vitro Studies of Semisynthetic α- (Substituted-Ureido) Penicillins , 1971 .

[56]  J. Hou,et al.  -lactam antibiotics: their physicochemical properties and biological activities in relation to structure. , 1971, Journal of Pharmacy and Science.

[57]  G. Bodey,et al.  In Vitro Studies of α-Carboxyl-3-Thienylmethyl Penicillin, a New Semisynthetic Penicillin , 1971 .

[58]  E. Katz Biosynthesis of polypeptide antibiotics , 1971, Pure and applied chemistry. Chimie pure et appliquee.

[59]  M. Richmond,et al.  Comparative amino acid contents of purified β‐lactamases from enteric bacteria , 1970 .

[60]  N. Garber,et al.  β-Lactamase and the Resistance of Pseudomonas aeruginosa to Various Penicillins and Cephalosporins , 1970 .

[61]  A. Saz An introspective view of penicillinase , 1970, Journal of cellular physiology.

[62]  M. Hynes,et al.  The use of amides as nitrogen sources by Aspergillus nidulans. , 1970, Journal of general microbiology.

[63]  R. Perkins,et al.  Antibiotic-induced alterations in the surface morphology of bacterial cells: a scanning-beam electron miscroscopy study. , 1970, The Journal of infectious diseases.

[64]  S. Falkow,et al.  Specific Labeling and Physical Characterization of R-Factor Deoxyribonucleic Acid in Escherichia coli , 1970, Journal of bacteriology.

[65]  K. Bauer Zur Biosynthese der Penicilline: Bildung von 5-(2-Aminoadipyl)-cysteinyl-valin in Extrakten von Penicillium chrysogenum / Formation of 5-(2-Aminoadipyl)-cysteinyl-valin by Extracts of Penicillium chrysogenum , 1970 .

[66]  K. Ryan,et al.  Stability of antibiotics and chemotherapeutics in agar plates. , 1970, Applied microbiology.

[67]  J. Strominger,et al.  Biosynthesis of the peptidoglycan of bacterial cell walls. XV. The binding of radioactive penicillin to the particulate enzyme preparation of Bacillus subtilis and its reversal with hydroxylamine or thiols. , 1970, The Journal of biological chemistry.

[68]  S. Kuwabara Purification and properties of two extracellular beta-lactamases from Bacillus cereus 569-H. , 1970, The Biochemical journal.

[69]  M. Sela,et al.  Reduction in immunological manifestations of 6-aminopenicillanic acid by treatment with water-insoluble pronase. , 1970, European journal of biochemistry.

[70]  M. Malamy,et al.  Comparisons of F Factors and R Factors: Existence of Independent Regulation Groups in F Factors , 1970, Journal of bacteriology.

[71]  S. Elson,et al.  R-factor mediated β-Lactamase in Pseudomonas aeruginosa , 1970, Nature.

[72]  R. Sykes,et al.  Intergeneric Transfer of a β-Lactamase Gene between Ps. aeruginosa and E. coli , 1970, Nature.

[73]  J. Birner Determination of phenoxymethyl penicilloic acid and phenoxyethyl penicilloic acid in urine in the presence of the parent penicillins. , 1970, Journal of pharmaceutical sciences.

[74]  C. Maung,et al.  Multiple activities of penicillin acyltransferase of Penicillium chrysogenum. , 1970, The Biochemical journal.

[75]  N. Farnsworth,et al.  Penicillin stability to alcohols. , 1970, Journal of pharmaceutical sciences.

[76]  M. Richmond,et al.  A comparative study of eight distinct beta-lactamases synthesized by gram-negative bacteria. , 1970, Journal of general microbiology.

[77]  A. Humphrey,et al.  Optimal control of an enzyme reaction subject to enzyme deactivation. I. Batch process , 1970 .

[78]  E. Abraham,et al.  Products of aminolysis and enzymic hydrolysis of the cephalosporins. , 1970, The Biochemical journal.

[79]  D. Pramer,et al.  Herbicide transformation. II. Studies with an acylamidase of Fusarium solani. , 1970, Applied microbiology.

[80]  M. Cole Hydrolysis of penicillins and related compounds by the cell-bound penicillin acylase of Escherichia coli. , 1969, The Biochemical journal.

[81]  M Cole,et al.  Deacylation of acylamino compounds other than penicillins by the cell-bound penicillin acylase of Escherichia coli. , 1969, The Biochemical journal.

[82]  M. Cole Factors affecting the synthesis of ampicillin and hydroxypenicillins by the cell-bound penicillin acylase of Escherichia coli. , 1969, The Biochemical journal.

[83]  M. Cole Penicillins and other acylamino compounds synthesized by the cell-bound penicillin acylase of Escherichia coli. , 1969, The Biochemical journal.

[84]  J. V. Van Etten,et al.  Protein Synthesis During Fungal Spore Germination IV. Transfer Ribonucleic Acid from Germinated and Ungerminated Spores , 1969, Journal of bacteriology.

[85]  J. N. Aronson,et al.  Palo Verde (Parkinsonia aculeata L.) seed aminoacylase. , 1969, Biochimica et biophysica acta.

[86]  B. Brady The acylamide amidohydrolase of Candida utilis: purification and properties. , 1969, Journal of general microbiology.

[87]  J. Fooks,et al.  Thin-layer chromatography of procaine penicillin G. , 1969, Journal of pharmaceutical sciences.

[88]  R. Kinget,et al.  Model catalysts which simulate penicillinase. IV. Steric and electronic effects in the catalysis of hydrolysis of penicillins and cephalothin by aminoalkylcatechols. , 1969, Journal of pharmaceutical sciences.

[89]  G. Bodey,et al.  In vitro studies of a new semisynthetic penicillin, 6-(d-alpha-sulfoaminophenylacetamido)-penicillanic acid. , 1969, Applied microbiology.

[90]  R E Peterson,et al.  L-asparaginase production by Erwinia aroideae. , 1969, Applied microbiology.

[91]  R. Peterson,et al.  L-asparaginase production by various bacteria. , 1969, Applied microbiology.

[92]  M. Lilly,et al.  The conversion of benzyl penicillin to 6‐aminopenieillanie acid using an insoluble derivative of penieillin amidase , 1969, Biotechnology and bioengineering.

[93]  R. J. Meadway,et al.  Chemical Structure of Bacterial Penicillinases , 1969, Nature.

[94]  K. Buck,et al.  Virus-like Particles in Penicillin producing Strains of Penicillium chrysogenum , 1969, Nature.

[95]  J. Hou,et al.  Kinetics and mechanism of degradation of ampicillin in solution. , 1969, Journal of pharmaceutical sciences.

[96]  S. Sehgal,et al.  Hydrolysis of phenoxymethyl penicillin into 6-amino-penicillanic acid with spores of fusaria. , 1969, Applied microbiology.

[97]  J. M. Arcos,et al.  Beta-lactamase and penicillinacylase coexistence in Escherichia coli , 1968, Journal of bacteriology.

[98]  A. Ciegler,et al.  Starch Hydrolysis by Conidia of Aspergillus wentii. , 1968, Applied microbiology.

[99]  A. Vlietinck,et al.  Specificity of penicillin acylase of Fusarium and of Penicillium chrysogenum. , 1968, Applied microbiology.

[100]  J. Hamilton-miller Wild type variants of penicillinase from Klebsiella aerogenes , 1968, FEBS letters.

[101]  J. Strominger,et al.  Biosynthesis of the peptidoglycan of bacterial cell walls. XII. Inhibition of cross-linking by penicillins and cephalosporins: studies in Staphylococcus aureus in vivo. , 1968, The Journal of biological chemistry.

[102]  G. Bodey,et al.  In Vitro Activity of Carbenicillin Against Gram-negative Bacilli , 1968, Journal of bacteriology.

[103]  B. Spencer The biosynthesis of penicillins: Acylation of 6-aminopenicillanic acid. , 1968, Biochemical and biophysical research communications.

[104]  M. Sargent Rapid fixed-time assay for penicillinase , 1968, Journal of bacteriology.

[105]  S. Sehgal,et al.  Large-scale transformation of steroids by fungal spores. , 1968, Applied microbiology.

[106]  M. J. Johnson,et al.  Penicillin Acyltransferase in Penicillium chrysogenum , 1967, Journal of bacteriology.

[107]  D. Dennen Degradation kinetics of 6-aminopenicillanic acid. , 1967, Journal of pharmaceutical sciences.

[108]  G. Rolinson,et al.  New Semi-synthetic Penicillin active against Pseudomonas pyocyanea , 1967, Nature.

[109]  W. E. Wick,et al.  Cephalexin, a new orally absorbed cephalosporin antibiotic. , 1967, Applied microbiology.

[110]  L. Nyiri Change in the Rate of Deacylation of Benzylpenicillin and Phenylacetyl Glycine during Submerged Cultivation of Escherichia coli , 1967, Nature.

[111]  C. Chiang,et al.  Purification and Properties of Penicillin Amidase from Bacillus megaterium , 1967, Journal of bacteriology.

[112]  I. R. Shimi,et al.  Biological breakdown of benzylpenicillin by preformed mats of penicillin-producing organisms. , 1966, The Biochemical journal.

[113]  R. C. Erickson,et al.  Acylation of 6-Aminopenicillanic Acid by Penicillium chrysogenum. , 1966, Applied microbiology.

[114]  R. C. Lawrence The oxidation of fatty acids by spores of penicillium roqueforti. , 1966, Journal of general microbiology.

[115]  S. Ellis,et al.  Pituitary arylamidases and peptidases. , 1966, The Journal of biological chemistry.

[116]  R. Brunner,et al.  Über Aminoacylasen von Penicillium chrysogenum , 1966 .

[117]  R. Sutherland,et al.  The role of penicillin acylase in the resistance of gram-negative bacteria to penicillins. , 1966, Journal of general microbiology.

[118]  C. Casas-Campillo,et al.  Microbiological aspects in the hydroxylation of estrogens by Fusarium moniliforme. , 1965, Applied microbiology.

[119]  N. Datta,et al.  Penicillinase Synthesis Controlled By Infectious R Factors In Enterobacteriaceae , 1965, Nature.

[120]  M. Schwartz Model catalysts which simulate penicillinase. I. Effect of ionic interaction on catalysis of penicillin hydrolysis by certain catecholamines. , 1965, Journal of pharmaceutical sciences.

[121]  R. C. Erickson,et al.  Penicillin acylase activity of Penicillium chrysogenum. , 1965, Applied microbiology.

[122]  S. Sehgal,et al.  Sporulation of Filamentous Fungi in Submerged Culture , 1965 .

[123]  M. J. Johnson,et al.  Enzymatic Deacylation of S35-Benzylpenicillin , 1965, Journal of bacteriology.

[124]  G. Ayliffe Cephalosporinase and penicillinase activity of Gram-negative bacteria. , 1965, Journal of general microbiology.

[125]  W. G. Evans,et al.  AUTOMATED COLORIMETRIC DETERMINATION OF 6-AMINOPENICILLANIC ACID IN FERMENTATION MEDIA. , 1965, Analytical chemistry.

[126]  P. Finholt,et al.  CATALYTIC EFFECT OF BUFFERS ON DEGRADATION OF PENICILLIN G IN AQUEOUS SOLUTION. , 1965, Journal of pharmaceutical sciences.

[127]  M. Schwartz MECHANISM OF DEGRADATION OF PENICILLIN G IN ACIDIC SOLUTION. , 1965, Journal of pharmaceutical sciences.

[128]  E. Ivashkiv Chemical Method for Determination of 6-Aminopenicillanic Acid in Fermentation Broths. , 1964 .

[129]  H. Kornberg,et al.  Purification and properties of acyltransferases from Pseudomonas aeruginosa. , 1964, The Biochemical journal.

[130]  W. J. Brammar,et al.  INDUCTION AND REPRESSION OF PSEUDOMONAS AERUGINOSA AMIDASE. , 1964, Journal of general microbiology.

[131]  H. Black,et al.  CEPHALOTHIN--A NEW ANTIBIOTIC. PRELIMINARY CLINICAL AND LABORATORY STUDIES. , 1964, JAMA.

[132]  M. Moss,et al.  Reactions of 6-aminopenicillanic acid with carbohydrates and related substances. , 1964, The Biochemical journal.

[133]  J. Slezák,et al.  Continuous cultivation of Escherichia coli possessing high penicillin–acylase activity , 1964 .

[134]  M. Cole Properties of the Penicillin Deacylase Enzyme of Escherichia coli , 1964, Nature.

[135]  G. Stewart,et al.  Differentiation of Amidase and β-Lactamase by Infrared Absorption , 1964 .

[136]  K. Bauer,et al.  Variety of Substrates for a Bacterial Benzyl Penicillin-splitting Enzyme , 1964, Nature.

[137]  G. Stewart,et al.  Production of Amidase and β-Lactamase by Bacteria , 1964 .

[138]  A. Szentirmai PRODUCTION OF PENICILLIN ACYLASE. , 1964, Applied microbiology.

[139]  A. Niedermayer Determination of Phenylacetic Acid in Penicillin Fermentation Media by Means of Gas Chromatography. , 1964 .

[140]  R. Walton 6-Aminopenicillanic Acid: Inhibition of Destruction of Cephalosporin C by Bacteria , 1964, Science.

[141]  H. Vanderhaeghe,et al.  Gas Chromatography of Penicillin and Penicillanic Acid Esters , 1964, Nature.

[142]  D. A. Hull,et al.  Spectrophotometric Determination of 8-Hydroxypenillic Acid. , 1964 .

[143]  R. Holt,et al.  Penicillin Amidase from Coliforms: its Extraction and some Characteristics , 1964, Nature.

[144]  W. Kaufmann The possible implication of a bacterial enzyme in the biochemical mode of action of penicillins on Gram negative bacteria. , 1964, Biochemical and biophysical research communications.

[145]  H. D. Rapson,et al.  IONISATION CONSTANTS OF SOME PENICILLINS AND OF THEIR ALKALINE AND PENICILLINASE HYDROLYSIS PRODUCTS , 1963, The Journal of pharmacy and pharmacology.

[146]  J. Uri,et al.  Production of 6-Aminopenicillanic Acid by Dermatophytes , 1963, Nature.

[147]  R. Knox,et al.  THE ESTIMATION OF PENICILLINS AND PENICILLIN DESTRUCTION , 1963, The Journal of pharmacy and pharmacology.

[148]  A. Demain,et al.  Microbial Degradation of Cephalosporin C , 1963, Nature.

[149]  C. Claridge,et al.  Specificity of Penicillin Amidases , 1963, Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine.

[150]  G. Ayliffe Ampicillin inactivation and sensitivity of coliform bacilli. , 1963, Journal of general microbiology.

[151]  F. R. Batchelor,et al.  Formation of 6-Aminopenicillanic Acid by Alkaline Hydrolysis of Penicillins , 1962, Nature.

[152]  G. Rolinson,et al.  Penicillin-Like Substances in Preparations of 6-Aminopenicillanic Acid , 1962, Nature.

[153]  Richard A. Mueller,et al.  Chemistry of Cephalosporin Antibiotics. II. Preparation of a New Class of Antibiotics and the Relation of Structure to Activity , 1962 .

[154]  G. Rolinson,et al.  Chemistry, Toxicology, Pharmacology and Microbiology of a new Acid-Stable Penicillin, Resistant to Penicillinase (BRL.1621) , 1962, Nature.

[155]  Robert B. Morin,et al.  Chemistry of Cephalosporin Antibiotics. I. 7-Aminocephalosporanic Acid from Cephalosporin C , 1962 .

[156]  F. P. Doyle,et al.  New Penicillins Stable towards Both Acid and Penicillinase , 1961, Nature.

[157]  Robert Thomas Colorimetric Detection of Penicillins and Cephalosporins on Paper , 1961, Nature.

[158]  F. Sztaricskai,et al.  Simple, Quick Methods for Detection of 6-Amino-penicillanic Acid , 1961, Nature.

[159]  F. P. Doyle,et al.  Some Novel Acid-stable Penicillins , 1961, Nature.

[160]  Y. Kimura,et al.  A Method for isolating Bacteria capable of producing 6-Aminopenicillanic Acid from Benzylpenicillin , 1961, Nature.

[161]  D. Gazzard,et al.  Action of Carbon Dioxide on 6-Amino-penicillanic Acid , 1961, Nature.

[162]  S. Schlesinger,et al.  Identification of a Compound related to 6-Aminopenicillanic Acid, isolated from Culture Media of Penicillium chrysogenum , 1961, Nature.

[163]  G. Rolinson,et al.  6-Aminopenicillanic acid II. Formation of 6-aminopenicillanic acid by Emericellopsis minima (Stolk) and related fungi , 1961, Proceedings of the Royal Society of London. Series B. Biological Sciences.

[164]  G. Rolinson,et al.  6-Aminopenicillanic acid IV. Antibacterial activity , 1961, Proceedings of the Royal Society of London. Series B. Biological Sciences.

[165]  G. Rolinson,et al.  6-Aminopenicillanic acid VI. Formation of 6-aminopenicillanic acid from penicillin by enzymic hydrolysis , 1961, Proceedings of the Royal Society of London. Series B. Biological Sciences.

[166]  G. Rolinson,et al.  6-Aminopenicillanic acid V. 6-Aminopenicillanic acid as a substrate for penicillinase and an inducer of penicillinase formation , 1961, Proceedings of the Royal Society of London. Series B. Biological Sciences.

[167]  G. Rolinson,et al.  6-Aminopenicillanic acid III. Isolation and purification , 1961, Proceedings of the Royal Society of London. Series B. Biological Sciences.

[168]  David A. Johnson,et al.  REACTION OF 6-AMINOPENICILLANIC ACID WITH CARBON DIOXIDE , 1961 .

[169]  E. Abraham,et al.  The structure of cephalosporin C , 1961 .

[170]  E. Abraham,et al.  The cephalosporin C nucleus (7-aminocephalosporanic acid) and some of its derivatives. , 1961, The Biochemical journal.

[171]  J. Alicino Iodometric Assay of Natural and Synthetic Penicillins, 6-Aminopenicillanic Acid, and Cephalosporin C , 1961 .

[172]  H. Arnstein,et al.  The utilization of L-cystinyl-L-valine for penicillin biosynthesis. , 1960, The Biochemical journal.

[173]  H. Arnstein,et al.  The structure of a peptide, containing alpha-aminoadipic acid, cystine and valine, present in the mycelium of Penicillium chrysogenum. , 1960, The Biochemical journal.

[174]  C. Claridge,et al.  Bacterial Penicillin Amidase , 1960, Nature.

[175]  G. Rolinson,et al.  Formation of 6-Aminopenicillanic Acid from Penicillin by Enzymatic Hydrolysis , 1960, Nature.

[176]  R. Gould Sensory Innervation of the Anal Canal , 1960, Nature.

[177]  A. R. English,et al.  ENZYMATIC HYDROLYSIS OF THE SIDE CHAIN OF PENICILLINS , 1960 .

[178]  K. R. Logan,et al.  A GENERAL SYNTHESIS OF THE PENICILLINS , 1959 .

[179]  P. R. Pal Colorimetric estimation of penicillamine. , 1959, The Journal of biological chemistry.

[180]  G. Rolinson,et al.  Synthesis of Penicillin: 6-Aminopenicillanic Acid in Penicillin Fermentations , 1959, Nature.

[181]  R. Gehrig,et al.  Formation of Ketones from Fatty Acids by Spores of Penicillium roqueforti , 1958, Nature.

[182]  J. Uri,et al.  Production of an Antibiotic by Dermatophytes living in Horn Products , 1957, Nature.

[183]  E. Abraham,et al.  Identity of Cephalosporin N and Synnematin B , 1955, Nature.

[184]  C. Perret Iodometric Assay of Penicillinase , 1954, Nature.

[185]  S. Pan Simultaneous Determination of Penicillin and Penicilloic Acid in Fermentation Samples by Colorimetric Method , 1954 .

[186]  G. E. Boxer,et al.  Colorimetric Determination of Benzylpenicillin , 1949 .

[187]  J. Corse,et al.  Biosynthesis of penicillins; new crystalline biosynthetic penicillins. , 1948, The Journal of biological chemistry.

[188]  H. D. Anthony Alexander Dallas Bache, Scientist and Educator, 1806–1867 , 1948, Nature.

[189]  J. H. Ford Hydroxylamine Method of Determining Penicillins , 1947 .

[190]  A. Moyer,et al.  Penicillin , 1947, Journal of bacteriology.

[191]  H. Florey,et al.  GENERAL AND LOCAL ADMINISTRATION OF PENICILLIN , 1943 .

[192]  Howard Florey,et al.  FURTHER OBSERVATIONS ON PENICILLIN , 1941 .

[193]  E. Abraham,et al.  An Enzyme from Bacteria able to Destroy Penicillin , 1940, Nature.

[194]  N. G. Heatley,et al.  Penicillin as a Chemotherapeutic Agent , 1940 .

[195]  R. Sykes,et al.  The β-Lactamases of Gram-Negative Bacteria and their Possible Physiological Role , 1973 .

[196]  Lowell D. Hatfield,et al.  Chemical interconversion of the .beta.-lactam antibiotics , 1973 .

[197]  T. Deguchi,et al.  Production of D(-)-α-Aminobenzylpenicillin by Kluyvera citrophila KY 3641 , 1972 .

[198]  M. Misawa,et al.  Production of 6-Aminopenicillanic Acid by Kluyvera citrophila KY 3641 , 1972 .

[199]  Kotova Ni,et al.  [Thin layer silica gel chromatography of penicillins. Semi-quantitative method for the determination of 6-aminopenicillanic acid in oxacillin]. , 1971 .

[200]  D. Perlman,et al.  Microbial transformations of antibiotics. , 1971, Pure and applied chemistry. Chimie pure et appliquee.

[201]  K. D. Hardy,et al.  Derivatives of 6-aminopenicillanic acid. X. A non-enzymic conversion of benzylpenicillin into semi-synthetic penicillins. , 1971, Journal of the Chemical Society. Perkin transactions 1.

[202]  F. Baumann,et al.  Die Substratspezifität der Penicillin-Amidase aus Fusarium semitectum , 1971 .

[203]  F. J. Behal,et al.  Naphthylamidases of Sarcina lutea. , 1971, Canadian journal of microbiology.

[204]  H. Neu,et al.  Semisynthetic penicillin 6-(D(--)-alpha-carboxy-3-thienylacetamido) penicillanic acid active against Pseudomonas in vitro. , 1971, Applied microbiology.

[205]  M. Misawa,et al.  Enzymatic Synthesis of D(-)-α-Aminobenzylpenicillin , 1971 .

[206]  E. Vandamme,et al.  The presence of penicillin-G destroying enzymes among different bacteria. , 1971, Zeitschrift fur allgemeine Mikrobiologie.

[207]  E. Irion,et al.  Isolation and properties of L-asparaginases from Escherichia coli. , 1970, Hoppe-Seyler's Zeitschrift fur physiologische Chemie.

[208]  M. Parish,et al.  Penicillinase from Micrococci Isolated from Soft Cheeses. II. Formation of β-Lactamase , 1970 .

[209]  A. Lewis,et al.  Structure-activity relationships among semisynthetic cephalosporins. , 1970 .

[210]  A. Thomas,et al.  The ectrophoretic separation of penicillins and penicilloic acids. , 1970, The Analyst.

[211]  P. H. Clarke The Aliphatic Amidases of Pseudomonas aeruginosa , 1969 .

[212]  K. E. Price Structure-activity relationships of semisynthetic penicillins. , 1969, Advances in applied microbiology.

[213]  S. Sehgal,et al.  Transformation of organic compounds by fungal spores. , 1968, Advances in applied microbiology.

[214]  M. Röhr,et al.  [On the biosynthesis of penicillin. Studies on the enzymatic activation of phenylacetic acid and phenoxyacetic acid as well as the formation of penicillin from 6-aminopenicillanic acid and activated side chain acids by mycelial homogenates and cell-free extracts of Penicillium chrysogenum]. , 1968, Hoppe-Seyler's Zeitschrift fur physiologische Chemie.

[215]  S. Gatenbeck,et al.  Biosynthesis of penicillins. I. Isolation of a 6-aminopenicillanic acid acyltransferase from Penicillium chrysogenum. , 1968, Acta chemica Scandinavica.

[216]  E. S. Anderson,et al.  The ecology of transferable drug resistance in the enterobacteria. , 1968, Annual review of microbiology.

[217]  I. McGilveray,et al.  Detection and separation of penicillins by thin-layer chromatography. , 1967, Journal of pharmaceutical sciences.

[218]  I. Haupt,et al.  Beiträge zur Acylase-Aktivität in Streptomyceten I. Penicillinacylase , 1967 .

[219]  I. Haupt,et al.  [Contribution to the acylase activity of streptomycetes. I. Penicillin acylase]. , 1967, Zeitschrift fur allgemeine Mikrobiologie.

[220]  K. T. Fry,et al.  Amidohydrolase activity of Escherichia coli extracts with formylated amino acids and dipeptides as substrates. , 1967, Journal of molecular biology.

[221]  R. C. Lawrence The metabolism of triglycerides by spores of Penicillium roqueforti. , 1967, Journal of general microbiology.

[222]  B. Sjöberg,et al.  Enzymatic hydrolysis of some penicillins and cephalosporins by Escherichia coli acylase. , 1967, Acta chemica Scandinavica.

[223]  P. Draper The aliphatic acylamide amidohydrolase of Mycobacterium smegmatis: its inducible nature and relation to acyl-transfer to hydroxylamine. , 1967, Journal of general microbiology.

[224]  J. F. Snell Biosynthesis of antibiotics , 1966 .

[225]  M. Cole Formation of 6-aminopenicillanic acid, penicillins, and penicillin acylase by various fungi. , 1966, Applied microbiology.

[226]  E. Brandl [Information on penicillin amidase]. , 1965, Hoppe-Seyler's Zeitschrift fur physiologische Chemie.

[227]  L. I. Vorob’eva Partition of cobamides by thin-layer chromatography. , 1965 .

[228]  R. Sutherland THE NATURE OF THE INSENSITIVITY OF GRAM-NEGATIVE BACTERIA TOWARDS PENICILLINS. , 1964, Journal of general microbiology.

[229]  G. Bretzel,et al.  [ON PENICILLINAMIDASE: PURIFICATION AND PROPERTIES]. , 1964, Hoppe-Seyler's Zeitschrift fur physiologische Chemie.

[230]  E. Meisingseth,et al.  PREPARATION OF $sup 35$S-LABELLED 6-AMINOPENICILLANIC ACID , 1963 .

[231]  T. Seto,et al.  Distribution and substrate specificity of benzylpenicillin acylase. , 1963, Applied microbiology.

[232]  R. B. Kingsley,et al.  Specificity of amino acid acylases. , 1952, The Journal of biological chemistry.

[233]  A J Moyer,et al.  Penicillin: VIII. Production of Penicillin in Surface Cultures. , 1946, Journal of bacteriology.

[234]  A. Fleming On the specific antibacterial properties of penicillin and potassium tellurite. Incorporating a method of demonstrating some bacterial antagonisms , 1932 .