1eqa

VACCINIA METHYLTRANSFERASE VP39 MUTANT E233Q COMPLEXED WITH M7G AND S-ADENOSYLHOMOCYSTEINE

spinqualitylabelsall models 1eqa, resolution 2.20Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1eqa is a 1 chain structure with sequence from Vaccinia virus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.2Å Ligands: MG7, SAH Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function MCE_VACCW Displays methyltransferase, positive regulation of the poly(A) polymerase and transcription elongation activities. Involved in the modification of both mRNA ends and in intermediate and late gene positive transcription elongation. At the mRNAs 5' end, methylates the ribose 2' OH group of the first transcribed nucleotide, thereby producing a 2'-O-methylpurine cap. At the 3' end, functions as a processivity factor which stimulates the activity of the viral poly(A) polymerase VP55 that creates mRNA's poly(A) tail. In the presence of VP39, VP55 does not dissociate from the RNA allowing tail elongation to around 250 adenylates. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. See Also Poly(A) polymerase 3D structures

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