乳酸去氫酶
乳酸去氫酶(英語:Lactate dehydrogenase;EC 1.1.1.27),縮寫:LDH或LD,是一個廣泛存在於各種生物體中的酶,包括了植物與動物。
乳酸去氫酶 | |||||||
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識別碼 | |||||||
EC編號 | 1.1.1.27 | ||||||
CAS號 | 9001-60-9 | ||||||
資料庫 | |||||||
IntEnz | IntEnz瀏覽 | ||||||
BRENDA | BRENDA入口 | ||||||
ExPASy | NiceZyme瀏覽 | ||||||
KEGG | KEGG入口 | ||||||
MetaCyc | 代謝路徑 | ||||||
PRIAM | 概述 | ||||||
PDB | RCSB PDB PDBj PDBe PDBsum | ||||||
基因本體 | AmiGO / EGO | ||||||
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乳酸去氫酶A (M亞基) | |
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人類乳酸去氫酶M4(在骨骼肌中發現的同工酶)。來自PDB 1I10。 | |
識別 | |
符號 | LDHA |
替換符號 | LDHM |
Entrez | 3939 |
HUGO | 6535 |
OMIM | 150000 |
RefSeq | NM_005566 |
UniProt | P00338 |
其他資料 | |
EC編號 | 1.1.1.27 |
基因座 | 11 p15.4 |
乳酸去氫酶存在於四種不同的酶分類中。其中兩種是依賴細胞色素c的酶,它們各自作用於D-乳酸(EC 1.1.2.4)與L-乳酸(EC 1.1.2.3)。
反應
乳酸去氫酶催化丙酮酸與乳酸之間的互變並伴隨著還原型菸鹼醯胺腺嘌呤二核苷酸與其氧化型之間互變。
此酶也可催化2-羥基丁酸的去氫作用,但其為較乳酸劣勢的受質。
L-乳酸去氫酶
D-乳酸去氫酶
- EC編號:1.1.1.28
- 通用名:D-乳酸去氫酶
- 英文:D-lactate dehydrogenase
- 催化反應:(D)-乳酸+NAD+⇔丙酮酸+NADH+H+
- 系統名稱:(R)-乳酸:NAD+氧化還原酶
- 英文:(R)-lactate:NAD+ oxidoreductase
- CAS登記號:9028-36-8
- 參考:Dennis, D. and Kaplan, N.O. D and L-lactic acid dehydrogenase in Lactobacillus plantarum. J. Biol. Chem. 235 (1960) 810-818
延伸閱讀
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