Results 191 to 200 of about 4,988 (210)

The Catalysis of Redox Cycling by Pyrroloquinoline Quinone (PQQ), PQQ Derivatives, and Isomers and the Specificity of Inhibitors

Analytical Biochemistry, 1996
Pyrroloquinoline quinone (PQQ) is a widely distributed redox-active cofactor and essential nutrient. For its detection in protein-free ultrafiltrates or dialysates, a highly sensitive amplification assay was developed on the basis of PQQ's ability to catalyze redox cycling at pH 10 in the presence of excess glycine, oxygen, and nitro blue tetrazolium ...
M A, Paz, P, Martin, R, Flückiger, J, Mah, P M, Gallop   +4 more
openaire   +2 more sources

ChemInform Abstract: Novel Function of the Pyrroloquinoline Quinone, PQQ, Enhanced by Micelle.

Chemischer Informationsdienst, 1984
AbstractPyrrolochinolinchinon (PQQ) (I), das als Coenzym einiger Dehydrogenasen isoliert worden ist, katalysiert die Luft‐Oxidation von Cyclohexylamin zu Cyclohexanon.
Y. OHSHIRO, T. HIRAO, T. AGAWA
openaire   +1 more source

Fluorescent sensor based on pyrroloquinoline quinone (PQQ)-glucose dehydrogenase for glucose detection with smartphone-adapted signal analysis

Microchimica Acta, 2022
Paulina K. Wells, A. Melman, E. Katz, O. Smutok   +3 more
semanticscholar   +1 more source

Pyrroloquinoline quinone (PQQ) biosynthesis

Acta Crystallographica Section A Foundations of Crystallography, 2007
S. Puehringer, R. Schwarzenbacher
openaire   +1 more source

Reaction of pyridoxamine-5-P with pyrroloquinoline quinone (coenzyme PQQ).

BioFactors (Oxford, England), 1990
PQQ catalyzes the oxidation of pyridoxamine (PM) and pyridoxamine-5-P (PMP) to pyridoxal and pyridoxal-5-P (PLP) at 37 degrees C in the absence of micelles and proteins. The time course of conversion of PMP into PLP was monitored by absorption spectroscopy; a rate of 10 nmol PLP/min was determined.
openaire   +1 more source

Pyrroloquinoline quinone (PQQ) from methanol dehydrogenase and tryptophan tryptophylquinone (TTQ) from methylamine dehydrogenase

2001
Publisher Summary This chapter focuses on two well-characterized representative members of each class of these enzymes, the Pyrroloquinoline quinine (PQQ)-dependent methanol dehydrogenase (MEDH) and the tryptophan tryptophylquinone (TTQ)-dependent methylamine dehydrogenase (MADH).
openaire   +2 more sources

Synthesis of Isomeric Analogues of Coenzyme Pyrroloquinoline Quinone (PQQ)

Synthesis, 1996
Zhoupeng Zhang, L. M. V. Tillekeratne, Richard A. Hudson   +2 more
openaire   +1 more source

The pyrroloquinoline quinone (PQQ)-containing quinoprotein dehydrogenases

Biochemical Society Transactions, 1998
openaire   +2 more sources

Bioconversion of recombinantly produced precursor peptide pqqA into pyrroloquinoline quinone (PQQ) using a cell-free in vitro system.

Protein Expression and Purification, 2020
Guanglu Wang, Yifei Zhou, Ke Ma, Fan Zhang, Jianbin Ye, Guifang Zhong, Xuepeng Yang   +6 more
semanticscholar   +1 more source

Novel Function of the Pyrroloquinoline Quinone, PQQ, Enhaneced by Micelle

HETEROCYCLES, 1984
Toshikazu Hirao, Yoshiki Ohshiro, Toshio Agawa   +2 more
openaire   +1 more source