Extractions of pyrroloquinoline quinone from crude biological samples.

[1]  A. Kumar,et al.  Spectral studies of bovine dopamine beta-hydroxylase. Absence of covalently bound pyrroloquinoline quinone. , 1989, The Journal of biological chemistry.

[2]  R. Rucker,et al.  Nutritional importance of pyrroloquinoline quinone. , 1989, Science.

[3]  J. Jongejan,et al.  Pyrroloquinoline quinone as cofactor in galactose oxidase (EC 1.1.3.9). , 1989, The Journal of biological chemistry.

[4]  R. van der Meer,et al.  Evidence for PQQ as cofactor in 3,4‐dihydroxyphenylalanine (dopa) decarboxylase of pig kidney , 1988, FEBS letters.

[5]  P. Gallop,et al.  The interaction of aminogroups with pyrroloquinoline quinone as detected by the reduction of nitroblue tetrazolium. , 1988, Biochemical and biophysical research communications.

[6]  O. Geiger,et al.  Enzymatic determination of pyrroloquinoline quinone using crude membranes from Escherichia coli. , 1987, Analytical biochemistry.

[7]  A. C. Mulder,et al.  Detection of the cofactor pyrroloquinoline quinone. , 1987, Analytical biochemistry.

[8]  P. Knowles,et al.  The organic cofactor in plasma amine oxidase: evidence for pyrroloquinoline quinone and against pyridoxal phosphate. , 1987, The Biochemical journal.

[9]  R. Moog,et al.  Evidence for pyrroloquinolinequinone as the carbonyl cofactor in lysyl oxidase by absorption and resonance Raman spectroscopy. , 1986, The Journal of biological chemistry.

[10]  J. Duine,et al.  Covalently bound pyrroloquinoline quinone is the organic prosthetic group in human placental lysyl oxidase. , 1986, The Biochemical journal.

[11]  J. Frank,et al.  Hydrazone formation of 2,4‐dinitrophenylhydrazine with pyrroloquinoline quinone in porcine kidney diamine oxidase , 1986, FEBS letters.

[12]  J. Jongejan,et al.  PQQ and quinoprotein enzymes in microbial oxidations , 1986 .

[13]  K. Matsushita,et al.  Method of enzymatic determination of pyrroloquinoline quinone. , 1985, Analytical biochemistry.

[14]  J. Frank,et al.  Bovine serum amine oxidase: a mammalian enzyme having covalently bound PQQ as prosthetic group , 1984, FEBS letters.

[15]  J. Frank,et al.  Detection and determination of pyrroloquinoline quinone, the coenzyme of quinoproteins. , 1983, Analytical biochemistry.

[16]  J. Frank,et al.  Covalent addition of H2O, enzyme substrates and activators to pyrrolo-quinoline quinone, the coenzyme of quinoproteins. , 1982, European journal of biochemistry.

[17]  O. Suzuki,et al.  A practical method for the accurate determination of methemoglobin in blood containing carboxyhemoglobin. , 1981, Forensic science international.

[18]  J. Frank,et al.  The prosthetic group of methanol dehydrogenase. Purification and some of its properties. , 1980, The Biochemical journal.

[19]  O. Kennard,et al.  A novel coenzyme from bacterial primary alcohol dehydrogenases , 1979, Nature.