核黄素激酶(英語:riboflavin kinase,EC 2.7.1.26)是一个催化以下化学反应的酶:
- ATP + 核黄素 ADP + FMN
事实速览 riboflavin kinase 核黄素激酶, 命名 ...
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事实速览 Riboflavin kinase 核黄素激酶, 鑑定 ...
Riboflavin kinase 核黄素激酶 |
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crystal structure of flavin binding to fad synthetase from thermotoga maritina |
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標誌 | Flavokinase |
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Pfam | PF01687(旧版) |
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InterPro | IPR015865 |
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SCOP | 1mrz / SUPFAM |
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事实速览 Riboflavin kinase 核黄素激酶, 鑑定 ...
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该酶催化的反应的底物为ATP和核黄素,产物是ADP和黄素单核苷酸(FMN)。
但是,在古菌核黄素激酶(EC 2.7.1.161)中,常使用CTP而非ATP作为反应底物,催化如下反应:
- CTP + 核黄素 CDP + FMN [2]
核黄素激酶也在许多细菌中发现,具有类似的功能,但存在若干数量的氨基酸不同。
+ XTP →
+ XDP
PDB 3CTA; Bonanno, J.B., Rutter, M., Bain, K.T., Mendoza, M., Romero, R., Smith, D., Wasserman, S., Sauder, J.M., Burley, S.K., Almo, S.C. Crystal structure of riboflavin kinase from Thermoplasma acidophilum. 2008.
Ammelburg M, Hartmann MD, Djuranovic S, Alva V, Koretke KK, Martin J, Sauer G, Truffault V, Zeth K, Lupas AN, Coles M. A CTP-Dependent Archaeal Riboflavin Kinase Forms a Bridge in the Evolution of Cradle-Loop Barrels. Structure. 2007, 12 (12): 1577–90 [2014-01-30]. PMID 18073108. doi:10.1016/j.str.2007.09.027. (原始内容存档于2016-12-27).
- CHASSY BM, ARSENIS C, MCCORMICK DB. THE EFFECT OF THE LENGTH OF THE SIDE CHAIN OF FLAVINS ON REACTIVITY WITH FLAVOKINASE. J. Biol. Chem. 1965, 240: 1338–40. PMID 14284745.
- GIRI KV, KRISHNASWAMY PR, RAO NA. Studies on plant flavokinase. Biochem. J. 1958, 70 (1): 66–71. PMC 1196627 . PMID 13584303.
- KEARNEY EB. The interaction of yeast flavokinase with riboflavin analogues. J. Biol. Chem. 1952, 194 (2): 747–54. PMID 14927668.
- McCormick DB and Butler RC. Substrate specificity of liver flavokinase. Biochim. Biophys. Acta. 1962, 65 (2): 326–332. doi:10.1016/0006-3002(62)91051-X.
- Sandoval FJ, Roje S. An FMN hydrolase is fused to a riboflavin kinase homolog in plants. J. Biol. Chem. 2005, 280 (46): 38337–45. PMID 16183635. doi:10.1074/jbc.M500350200.
- Solovieva IM, Tarasov KV, Perumov DA. Main physicochemical features of monofunctional flavokinase from Bacillus subtilis. B. Mosc,. Biochemistry. (2): 177–81. PMID 12693963.
- Solovieva IM, Kreneva RA, Leak DJ, Perumov DA. The ribR gene encodes a monofunctional riboflavin kinase which is involved in regulation of the Bacillus subtilis riboflavin operon. Microbiology. Pt 1, 145: 67–73. PMID 10206712. doi:10.1099/13500872-145-1-67.
此条目包含有源于Pfam以及InterPro的属于公有领域的文本 IPR015865