Recombinant Human Host cell factor 1 (HCFC1), Truncated

Uniprot Id

P51610

Target Species

Human

Target Name

HCFC1

Target Full Name

Host cell factor 1

Target Function

Involved in control of the cell cycle. Also antagonizes transactivation by ZBTB17 and GABP2; represses ZBTB17 activation of the p15(INK4b) promoter and inhibits its ability to recruit p300. Coactivator for EGR2 and GABP2. Tethers the chromatin modifying Set1/Ash2 histone H3 'Lys-4' methyltransferase (H3K4me) and Sin3 histone deacetylase (HDAC) complexes (involved in the activation and repression of transcription, respectively) together. Component of a THAP1/THAP3-HCFC1-OGT complex that is required for the regulation of the transcriptional activity of RRM1. As part of the NSL complex it may be involved in acetylation of nucleosomal histone H4 on several lysine residues. Recruits KMT2E/MLL5 to E2F1 responsive promoters promoting transcriptional activation and thereby facilitates G1 to S phase transition.; (Microbial infection) In case of human herpes simplex virus (HSV) infection, HCFC1 forms a multiprotein-DNA complex with the viral transactivator protein VP16 and POU2F1 thereby enabling the transcription of the viral immediate early genes.

Target Involvement

Mental retardation, X-linked 3 (MRX3)

Target Subcellular Location

Cytoplasm. Nucleus.

Target Tissue Specificity

Highly expressed in fetal tissues and the adult kidney. Present in all tissues tested.

Target Synonyms

C1 factor; CFF; HCF 1; HCF; HCF C-terminal chain 6; HCF-1; HCF1; Hcfc1; HCFC1_HUMAN; HFC1; Host cell factor 1; Host cell factor; Host cell factor C1 (VP16 accessory protein); Host cell factor C1; MGC70925; MRX3; VCAF; VP16 accessory protein

Target Background

This gene is a member of the host cell factor family and encodes a protein with five Kelch repeats, a fibronectin-like motif, and six HCF repeats, each of which contains a highly specific cleavage signal. This nuclear coactivator is proteolytically cleaved at one of the six possible sites, resulting in the creation of an N-terminal chain and the corresponding C-terminal chain. The final form of this protein consists of noncovalently bound N- and C-terminal chains. The protein is involved in control of the cell cycle and transcriptional regulation during herpes simplex virus infection. Alternatively spliced variants which encode different protein isoforms have been described; however, not all variants have been fully characterized.