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proteins. Page last changed on 08 Dec 2016.
Trm8, METTL1, YDL201w, Trm8p, DNA methyltransferase-like
This gene is similar in sequence to the S. cerevisiae YDL201w gene. The gene product contains a conserved S-adenosylmethionine-binding motif and is inactivated by phosphorylation. Alternative splice variants encoding different protein isoforms have been described for this gene. A pseudogene has been identified on chromosome X. [provided by RefSeq, Jul 2008] (from
Matesanz et al., Granada, Spain. In J Med Genet, 2013
BACKGROUND AND AIM: Several studies have highlighted the association of the 12q13.3-12q14.1 region with coeliac disease, type 1 diabetes, rheumatoid arthritis and multiple sclerosis (MS); however, the causal variants underlying diseases are still unclear.
Phizicky et al., Rochester, United States. In Rna, 2012
Thus, trm8-Δ trm4-Δ strains are temperature sensitive due to lack of m(7)G(46) and m(5)C and the consequent RTD of tRNA(Val(AAC)), and tan1-Δ trm44-Δ strains are temperature sensitive due to lack of ac(4)C(12) and Um(44) and the consequent RTD of tRNA(Ser(CGA)) and tRNA(Ser(UGA)).
Using site directed mutagenesis, we show here that the enzyme has a DNA methyltransferase-like mechanism, because similar residues from motifs IV, VI, and VIII are involved in catalysis as identified in DNA methyltransferases.
Phizicky et al., Rochester, United States. In Genes Dev, 2008
Recent evidence suggests that hypomodified mature tRNA in yeast can undergo a quality control check by a rapid tRNA decay (RTD) pathway, since mature tRNA(Val(AAC)) lacking 7-methylguanosine and 5-methylcytidine is rapidly degraded and deacylated at 37 degrees C in a trm8-Delta trm4-Delta strain, resulting in temperature-sensitive growth.
Cohen et al., Dundee, United Kingdom. In Embo J, 2005
A substrate for protein kinase B (PKB)alpha in HeLa cell extracts was identified as methyltransferase-like protein-1 (METTL1), the orthologue of trm8, which catalyses the 7-methylguanosine modification of tRNA in Saccharomyces cerevisiae.