TRNK guanozin-2'-O-metiltransferaza

TRNK guanozin-2'-O-metiltransferaza (EC 2.1.1.34, tRNK (Gm18) 2'-O-metiltransferaza, tRNK (Gm18) metiltransferaza, TrmH, SpoU) je enzim sa sistematskim imenom S-adenozil-L-metionin:tRNK (guanozin18-2'-O)-metiltransferaza.[1][2][3][4][5] Ovaj enzim katalizuje sledeću hemijsku reakciju

TRNK guanozin-2'-O-metiltransferaza
Identifikatori
EC broj2.1.1.34
CAS broj37257-01-5
Baze podataka
IntEnzIntEnz pregled
BRENDABRENDA pristup
ExPASyNiceZyme pregled
KEGGKEGG pristup
MetaCycmetabolički put
PRIAMprofil
Strukture PBPRCSB PDB PDBe PDBj PDBsum
S-adenozil-L-metionin + guanozin18 u tRNK S-adenozil-L-homocistein + 2'-O-metilguanozin18 u tRNK

Ovaj enzim katalizuje metilaciju guanozina18 unutar tRNK.

Reference уреди

  1. ^ Gefter, M.L. (1969). „The in vitro synthesis of 2′-O-methylguanosine and 2-methylthio 6N (γ,gamma-dimethylallyl) adenosine in transfer RNA of Escherichia coli”. Biochem. Biophys. Res. Commun. 36: 435—441. PMID 4898378. 
  2. ^ Kumagai, I., Watanabe, K. and Oshima, T. (1980). „Thermally induced biosynthesis of 2′-O-methylguanosine in tRNA from an extreme thermophile, Thermus thermophilus HB27”. Proc. Natl. Acad. Sci. USA. 77: 1922—1926. PMID 6990416. 
  3. ^ Hori, H., Yamazaki, N., Matsumoto, T., Watanabe, Y., Ueda, T., Nishikawa, K., Kumagai, I. and Watanabe, K. (1998). „Substrate recognition of tRNA (guanosine-2′-)-methyltransferase from Thermus thermophilus HB27”. J. Biol. Chem. 273: 25721—25727. PMID 9748240. 
  4. ^ Pleshe, E., Truesdell, J. and Batey, R.T. (2005). „Structure of a class II TrmH tRNA-modifying enzyme from Aquifex aeolicus”. Acta Crystallogr. Sect. F Struct. Biol. Cryst. Commun. 61: 722—728. PMID 16511140. 
  5. ^ Ochi, A., Makabe, K., Kuwajima, K. and Hori, H. (2010). „Flexible recognition of the tRNA G18 methylation target site by TrmH methyltransferase through first binding and induced fit processes”. J. Biol. Chem. 285: 9018—9029. PMID 20053984. 

Literatura уреди

Spoljašnje veze уреди