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Overview

Uniprot IDP11031
Protein NameActivated RNA polymerase II transcriptional coactivator p15
Gene NameSub1
OrganismMus musculus

Kla Sites from experimental identification

Position Flanking peptide
29 EKKLKRKKQAVPEKP
35 KKQAVPEKPVKKQKP
38 AVPEKPVKKQKPGET

Function

General coactivator that functions cooperatively with TAFs and mediates functional interactions between upstream activators and the general transcriptional machinery. May be involved in stabilizing the multiprotein transcription complex. Binds single-stranded DNA. Also binds, in vitro, non-specifically to double-stranded DNA (ds DNA)

Protein Sequence

10 MPKSKELVSS 20 SSSGSDSDSE 30 VEKKLKRKKQ 40 AVPEKPVKKQ 50 KPGETSRALA 60 SSKQSSSSRD 70 DNMFQIGKMR 80 YVSVRDFKGK 90 ILIDIREYWM 100 DSEGEMKPGR 110 KGISLNMEQW 120 SQLKEQISDI DDAVRKL

Gene Ontology

Classification GO ID Description
Cellular Component GO:0005730 nucleolus
Cellular Component GO:0005654 nucleoplasm
Cellular Component GO:0005634 nucleus
Cellular Component GO:0005667 transcription regulator complex
Molecular Function GO:0003690 double-stranded DNA binding
Molecular Function GO:0042802 identical protein binding
Molecular Function GO:0000978 RNA polymerase II cis-regulatory region sequence-specific DNA binding
Molecular Function GO:0003697 single-stranded DNA binding
Molecular Function GO:0003713 transcription coactivator activity
Biological Process GO:0051053 negative regulation of DNA metabolic process
Biological Process GO:0060261 positive regulation of transcription initiation by RNA polymerase II
Biological Process GO:0006357 regulation of transcription by RNA polymerase II
Biological Process GO:0001111 RNA polymerase II promoter clearance

Reference

[1] Wu D, Tang Y, Li X, Xiong S, Zhang Z et al.. Characterization of protein lactylation in healthy and ischemic mouse hearts.. Front Cardiovasc Med 12:1644886. 2025. PMID: 41089239.