7vh9 | pdb_00007vh9
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Solution structure of the chimeric peptide of the first SURP domain of Human SF3A1 and the interacting region of SF1.
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Structural highlights
FunctionSF3A1_HUMAN Subunit of the splicing factor SF3A required for 'A' complex assembly formed by the stable binding of U2 snRNP to the branchpoint sequence (BPS) in pre-mRNA. Sequence independent binding of SF3A/SF3B complex upstream of the branch site is essential, it may anchor U2 snRNP to the pre-mRNA. May also be involved in the assembly of the 'E' complex.SF01_HUMAN Necessary for the ATP-dependent first step of spliceosome assembly. Binds to the intron branch point sequence (BPS) 5'-UACUAAC-3' of the pre-mRNA. May act as transcription repressor.[1] [2] [3] References
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This page was last modified 09:59, 25 October 2023.