5KKC

l-lactate dehydrogenase from rabbit muscle with the inhibitor 6DHNAD

5KKC の概要

• エントリーDOI: 10.2210/pdb5kkc/pdb
• 分子名称: L-lactate dehydrogenase A chain, [[(2~{R},3~{S},4~{R},5~{R})-5-(5-aminocarbonyl-2~{H}-pyridin-1-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methoxy-oxidanyl-phosphoryl] [(2~{R},3~{S},4~{R},5~{R})-5-(6-aminopurin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methyl hydrogen phosphate, SULFATE ION, ... (4 entities in total)
• 機能のキーワード: lactate dehydrogenase, inhibitor, 6dhnad, beta- 6-dihydronicotimide adenine dinucleotide, oxidoreductase
• 由来する生物種: Oryctolagus cuniculus (Rabbit)
• タンパク質・核酸の鎖数: 4
• 化学式量合計: 149011.49

構造登録者

Meneely, K.M.,Moran, G.R.,Lamb, A.L. (登録日: 2016-06-21, 公開日: 2016-11-02, 最終更新日: 2023-09-27)

主引用文献

Beaupre, B.A.,Roman, J.V.,Hoag, M.R.,Meneely, K.M.,Silvaggi, N.R.,Lamb, A.L.,Moran, G.R.
Ligand binding phenomena that pertain to the metabolic function of renalase.
Arch.Biochem.Biophys., 612:46-56, 2016

PubMed Abstract: Renalase catalyzes the oxidation of isomers of β-NAD(P)H that carry the hydride in the 2 or 6 positions of the nicotinamide base to form β-NAD(P). This activity is thought to alleviate inhibition of multiple β-NAD(P)-dependent enzymes of primary and secondary metabolism by these isomers. Here we present evidence for a variety of ligand binding phenomena relevant to the function of renalase. We offer evidence of the potential for primary metabolism inhibition with structures of malate dehydrogenase and lactate dehydrogenase bound to the 6-dihydroNAD isomer. The previously observed preference of renalase from Pseudomonas for NAD-derived substrates over those derived from NADP is accounted for by the structure of the enzyme in complex with NADPH. We also show that nicotinamide nucleosides and mononucleotides reduced in the 2- and 6-positions are renalase substrates, but bind weakly. A seven-fold enhancement of acquisition (k/K) for 6-dihydronicotinamide riboside was observed for human renalase in the presence of ADP. However, generally the addition of complement ligands, AMP for mononucleotide or ADP for nucleoside substrates, did not enhance the reductive half-reaction. Non-substrate nicotinamide nucleosides or nucleotides bind weakly suggesting that only β-NADH and β-NADPH compete with dinucleotide substrates for access to the active site.

PubMed: 27769837
DOI: 10.1016/j.abb.2016.10.011

実験手法

X-RAY DIFFRACTION (1.859 Å)