Warning: Undefined variable $zfal in C:\Inetpub\vhosts\kidney.de\httpdocs\mlpefetch.php on line 525
Deprecated: str_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated in C:\Inetpub\vhosts\kidney.de\httpdocs\mlpefetch.php on line 525
Warning: Undefined variable $sterm in C:\Inetpub\vhosts\kidney.de\httpdocs\mlpefetch.php on line 530
Warning: Undefined variable $sterm in C:\Inetpub\vhosts\kidney.de\httpdocs\mlpefetch.php on line 531
Warning: file_get_contents(http://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=8181669&cmd=llinks): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
in C:\Inetpub\vhosts\kidney.de\httpdocs\mlpefetch.php on line 445
 
English Wikipedia
Nephropedia Template TP (
Twit Text
DeepDyve
Pubget Overpricing |  
lüll
Quinoproteins McIntire WSFASEB J 1994[May]; 8 (8): 513-21As used today, the word quinoprotein defines three distinct groups of enzymes. Before 1979, the structures of the essential, quinonoid oxidation-reduction cofactors were a mystery for all these enzymes. The first proteins proven to harbor this type prosthetic group are those with noncovalently bound pyrroloquinoline quinone (PQQ). PQQ-containing enzymes can be described as alcohol dehydrogenases, with the exception of a single protein, which is an amine dehydrogenase. More recently, it was discovered that copper-containing amine oxidases contain 6-hydroxydopa quinone, also known as topa quinone (TQ), whereas certain bacterial amine dehydrogenases require 2',4-bitryptophan-6,7-dione (tryptophan tryptophylquinone, TTQ) for activity. These latter two quinones are formed, by unknown processes, from a specific tyrosyl residue for the amine oxidases, and from two widely separate tryptophyl residues in the polypeptide of the amine dehydrogenases.|*Indolequinones[MESH]|Coenzymes/*physiology[MESH]|Dihydroxyphenylalanine/*analogs & derivatives/physiology[MESH]|Oxidation-Reduction[MESH]|PQQ Cofactor[MESH]|Quinolones/*metabolism[MESH]|Quinones/metabolism[MESH]|Tryptophan/*analogs & derivatives/physiology[MESH] |
