2.1.1.216: tRNA (guanine26-N2)-dimethyltransferase
This is an abbreviated version!
For detailed information about tRNA (guanine26-N2)-dimethyltransferase, go to the full flat file.
Word Map on EC 2.1.1.216
Reaction
2 S-adenosyl-L-methionine
+
Synonyms
EC 2.1.1.32, Ta0997, transfer RNA methyltransferase, Trm1, Trm1 methyltransferase, Trm1p, tRNA (guanine(26)-N(2))-dimethyltransferase, tRNA (m22G26)dimethyltransferase, tRNA(guanine-26,N2-N2) methyltransferase, tRNA(guanine26,N2,N2)-dimethyltransferase, tRNA(m22G26)dimethyltransferase, ZC376.5
ECTree
2.1.1.216 tRNA (guanine26-N2)-dimethyltransferaseAdvanced search results
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results (Engineering
Engineering on EC 2.1.1.216 - tRNA (guanine26-N2)-dimethyltransferase
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PROTEIN VARIANTS 
ORGANISM
UNIPROT
COMMENTARY 
LITERATURE
S467L
complete loss of enzyme activity in vitro against trm1 yeast tRNA
additional information
additional information
comparatively short N- or C-terminal deletions from the 570 amino acid long Trm1 polypeptide decreased or eliminated the enzyme activity. The first 27 N-terminal amino acids in rTrmp1 are not needed for G26 modification activity in vitro or in vivo. DELTAC5aa causes the in vitro modification activity to drastically decrease to 27% of the wild-type rate. Additional deletions up to DELTA30aa further lower the activity to about 7% of the wild-type value. In DELTA10aa an increase of the N2-methylguanine26 relative to N2-dimethylguanine26 tRNA is observed, but with further C-terminal deletions the monomethylation activity is also severely lowered
additional information
-
comparatively short N- or C-terminal deletions from the 570 amino acid long Trm1 polypeptide decreased or eliminated the enzyme activity. The first 27 N-terminal amino acids in rTrmp1 are not needed for G26 modification activity in vitro or in vivo. DELTAC5aa causes the in vitro modification activity to drastically decrease to 27% of the wild-type rate. Additional deletions up to DELTA30aa further lower the activity to about 7% of the wild-type value. In DELTA10aa an increase of the N2-methylguanine26 relative to N2-dimethylguanine26 tRNA is observed, but with further C-terminal deletions the monomethylation activity is also severely lowered
additional information
generation of a trm1DELTA knockout mutant
