Recombinant Human Nuclear receptor coactivator 1 (NCOA1), Truncated

Uniprot Id

Q15788

Target Species

Human

Target Name

NCOA1

Target Full Name

Nuclear receptor coactivator 1

Target Function

Nuclear receptor coactivator that directly binds nuclear receptors and stimulates the transcriptional activities in a hormone-dependent fashion. Involved in the coactivation of different nuclear receptors, such as for steroids (PGR, GR and ER), retinoids (RXRs), thyroid hormone (TRs) and prostanoids (PPARs). Also involved in coactivation mediated by STAT3, STAT5A, STAT5B and STAT6 transcription factors. Displays histone acetyltransferase activity toward H3 and H4; the relevance of such activity remains however unclear. Plays a central role in creating multisubunit coactivator complexes that act via remodeling of chromatin, and possibly acts by participating in both chromatin remodeling and recruitment of general transcription factors. Required with NCOA2 to control energy balance between white and brown adipose tissues. Required for mediating steroid hormone response. Isoform 2 has a higher thyroid hormone-dependent transactivation activity than isoform 1 and isoform 3.

Target Involvement

A chromosomal aberration involving NCOA1 is a cause of rhabdomyosarcoma. Translocation t(2;2)(q35;p23) with PAX3 generates the NCOA1-PAX3 oncogene consisting of the N-terminus part of PAX3 and the C-terminus part of NCOA1. The fusion protein acts as a transcriptional activator. Rhabdomyosarcoma is the most common soft tissue carcinoma in childhood, representing 5-8% of all malignancies in children.

Target Subcellular Location

Nucleus.

Target Protein Families

SRC/p160 nuclear receptor coactivator family

Target Tissue Specificity

Widely expressed.

Target Synonyms

bHLHe74; Class E basic helix-loop-helix protein 74; F SRC 1; Hin 2 protein; Hin2 protein; MGC129719; MGC129720; mNRC 1; NCoA 1; NCoA-1; Ncoa1; NCOA1_HUMAN; Nuclear receptor coactivator 1; Nuclear receptor coactivator protein 1; NY REN 52 antigen; Protein Hin 2; Protein Hin-2; Protein Hin2; Renal carcinoma antigen NY REN 52; Renal carcinoma antigen NY-REN-52; RIP 160; RIP160; SRC 1; SRC-1; Steroid receptor coactivator 1

Target Background

The protein encoded by this gene acts as a transcriptional coactivator for steroid and nuclear hormone receptors. It is a member of the p160/steroid receptor coactivator (SRC) family and like other family members has histone acetyltransferase activity and contains a nuclear localization signal, as well as bHLH and PAS domains. The product of this gene binds nuclear receptors directly and stimulates the transcriptional activities in a hormone-dependent fashion. Alternatively spliced transcript variants encoding different isoforms have been identified.