Recombinant Human RING1 and YY1-binding protein (RYBP)

Uniprot Id

Q8N488

Target Species

Human

Target Name

RYBP

Target Full Name

RING1 and YY1-binding protein

Target Function

Component of a Polycomb group (PcG) multiprotein PRC1-like complex, a complex class required to maintain the transcriptionally repressive state of many genes, including Hox genes, throughout development. PcG PRC1-like complex acts via chromatin remodeling and modification of histones; it mediates monoubiquitination of histone H2A 'Lys-119', rendering chromatin heritably changed in its expressibility. Component of a PRC1-like complex that mediates monoubiquitination of histone H2A 'Lys-119' on the X chromosome and is required for normal silencing of one copy of the X chromosome in XX females. May stimulate ubiquitination of histone H2A 'Lys-119' by recruiting the complex to target sites. Inhibits ubiquitination and subsequent degradation of TP53, and thereby plays a role in regulating transcription of TP53 target genes. May also regulate the ubiquitin-mediated proteasomal degradation of other proteins like FANK1 to regulate apoptosis. May be implicated in the regulation of the transcription as a repressor of the transcriptional activity of E4TF1. May bind to DNA. May play a role in the repression of tumor growth and metastasis in breast cancer by down-regulating SRRM3.

Target Subcellular Location

Nucleus. Cytoplasm. Nucleus, nucleoplasm.

Target Tissue Specificity

Down-regulated in breast cancer tissues and in several breast cancer cell lines (at protein level). Widely expressed with highest levels in lymphoid tissues and placenta.

Target Synonyms

2410018J24Rik; AAP 1; AAP1; APAP 1; APAP-1; APAP1; Apoptin associating protein 1; Apoptin-associating protein 1; cb337; Death effector domain associated factor; Death effector domain-associated factor; Death effector domain-associated factor B; DED associated factor; DED-associated factor; DED-associated factor B; DEDAF; MGC62213; RING1 and YY1 binding protein a; RING1 and YY1 binding protein; RING1 and YY1-binding protein; RING1 and YY1-binding protein B; Ring1 interactor RYBP; RYBP; RYBP_HUMAN; rybpa; wu:fi34f03; YEAF 1; YEAF1; YY1 and E4TF1 associated factor 1; YY1 and E4TF1-associated factor 1; YY1- and E4TF1/GABP-associated factor 1; zgc:153842

Target Background

Predicted to enable DNA binding activity and transcription coregulator activity. Involved in several processes, including histone H2A monoubiquitination; negative regulation of proteasomal ubiquitin-dependent protein catabolic process; and positive regulation of transcription, DNA-templated. Located in nucleoplasm. Colocalizes with PcG protein complex.