AMFR blocking peptide

AMFR Antibody (Center) Blocking Peptide

• Gene Names: AMFR; GP78; RNF45
• Synonyms: AMFR; AMFR Antibody (Center) Blocking Peptide; E3 ubiquitin-protein ligase AMFR; 632-; Autocrine motility factor receptor; AMF receptor; RING finger protein 45; gp78; RNF45; AMFR blocking peptide

• Form/Format: Synthetic peptide was lyophilized with 100% acetonitrile and is supplied as a powder. Reconstitute with 0.1 ml DI water for a final concentration of 1 mg/ml.
• Sequence Length: 643

• Cellular Location: Endoplasmic reticulum membrane; Multi-pass membrane protein
• Preparation and Storage: Maintain refrigerated at 2-8 degree C for up to 6 months. For long term storage store at -20 degree C.

Related Product Information for AMFR blocking peptide

E3 ubiquitin-protein ligase that mediates the polyubiquitination of a number of proteins such as CD3D, CYP3A4, CFTR and APOB for proteasomal degradation. Component of a VCP/p97- AMFR/gp78 complex that participates in the final step of endoplasmic reticulum-associated degradation (ERAD). The VCP/p97- AMFR/gp78 complex is involved in the sterol-accelerated ERAD degradation of HMGCR through binding to the HMGCR-INSIG complex at the ER membrane and initiating ubiquitination of HMGCR. The ubiquitinated HMGCR is then released from the ER by the complex into the cytosol for subsequent destruction. Also acts as a scaffold protein to assemble a complex that couples ubiquitination, retranslocation and deglycosylation. Mediates tumor invasion and metastasis as a receptor for the GPI/autocrine motility factor.

NCBI and Uniprot Product Information

• NCBI GI #: 34922250
• NCBI GeneID: 267
• UniProt Accession #: Q9UKV5; P26442; Q8IZ70
• Molecular Weight: 72,996 Da
• NCBI Official Full Name: E3 ubiquitin-protein ligase AMFR
• NCBI Official Synonym Full Names: autocrine motility factor receptor
• NCBI Official Symbol: AMFR
• NCBI Official Synonym Symbols: GP78; RNF45
• NCBI Protein Information: E3 ubiquitin-protein ligase AMFR
• UniProt Protein Name: E3 ubiquitin-protein ligase AMFR
• Protein Family: E3 ubiquitin-protein ligase
• UniProt Gene Name: AMFR
• UniProt Synonym Gene Names: RNF45; AMF receptor
• UniProt Entry Name: AMFR_HUMAN

NCBI Description

This locus encodes a glycosylated transmembrane receptor. Its ligand, autocrine motility factor, is a tumor motility-stimulating protein secreted by tumor cells. The encoded receptor is also a member of the E3 ubiquitin ligase family of proteins. It catalyzes ubiquitination and endoplasmic reticulum-associated degradation of specific proteins. [provided by RefSeq, Feb 2012]

Uniprot Description

AMFR: E3 ubiquitin-protein ligase that mediates the polyubiquitination of a number of proteins such as CD3D, CYP3A4, CFTR and APOB for proteasomal degradation. Component of a VCP/p97- AMFR/gp78 complex that participates in the final step of endoplasmic reticulum-associated degradation (ERAD). The VCP/p97- AMFR/gp78 complex is involved in the sterol-accelerated ERAD degradation of HMGCR through binding to the HMGCR-INSIG complex at the ER membrane and initiating ubiquitination of HMGCR. The ubiquitinated HMGCR is then released from the ER by the complex into the cytosol for subsequent destruction. Also acts as a scaffold protein to assemble a complex that couples ubiquitination, retranslocation and deglycosylation. Mediates tumor invasion and metastasis. Interacts with RNF5. Also forms an ERAD complex containing VCP/p97, NGLY1; PSMC1; SAKS1 AND RAD23B required for coupling retrotranslocation, ubiquitination and deglycosylation. Interacts with DRL1. Interacts (through a region distinct from the RING finger) with UBE2G2/UBC7. Component of the VCP/p97-AMFR/gp78 complex that enhances VCP/p97 binding to polyubiquitinated proteins for their degradation by the endoplasmic reticulum-associated degradation (ERAD) pathway. Interacts (via the VIM) with VCP/p97. Interacts (via its membrane domain) with INSIG1; the interaction initiates the sterol-mediated ubiquitination and degradation of HMGCR by the ERAD pathway. 2 isoforms of the human protein are produced by alternative splicing.

Protein type: EC 6.3.2.-; Motility/polarity/chemotaxis; Membrane protein, multi-pass; Ubiquitin conjugating system; Membrane protein, integral; Ligase; Ubiquitin ligase; Receptor, misc.; Endoplasmic reticulum; EC 6.3.2.19

Chromosomal Location of Human Ortholog: 16q21

Cellular Component: endoplasmic reticulum membrane; integral to endoplasmic reticulum membrane; membrane; perinuclear region of cytoplasm; protein complex

Molecular Function: chaperone binding; protein binding; protein binding, bridging; receptor activity; ubiquitin-protein ligase activity

Biological Process: cell motility; ER-associated protein catabolic process; positive regulation of protein binding; protein autoubiquitination; protein oligomerization; protein polyubiquitination; protein ubiquitination during ubiquitin-dependent protein catabolic process; signal transduction; ubiquitin-dependent protein catabolic process; unfolded protein response