SNX1 / Sorting Nexin-1 Recombinant Protein | SNX1 recombinant protein

Human SNX1 / Sorting Nexin-1 Recombinant Protein

• Gene Names: SNX1; VPS5; HsT17379
• Applications: ELISA, Western Blot
• Purity: >95% by SDS-PAGE
• Synonyms: SNX1 / Sorting Nexin-1; Human SNX1 / Sorting Nexin-1 Recombinant Protein; Sorting nexin-1; SNX1 recombinant protein

• Host: E Coli
• Purity/Purification: >95% by SDS-PAGE
• Form/Format: Liquid; 50mM NaH2PO4, 500mM NaCl Buffer with 500mM Imidazole, 10% Glycerol (PH8.0)
• Concentration: Reconstitution Dependent (varies by lot)
• Sequence Length: 557

• Applicable Applications for SNX1 recombinant protein: ELISA (EIA), Western Blot (WB), Antigen Protein (AP), Protein Array
• Species: Human
• Tag: His
• Subunit: Predominantly forms heterodimers with BAR domain-containing sorting nexins SNX5, SNX6 and SNX32; can self-associate to form homodimers (PubMed:23085988). The heterodimers are proposed to self-assemble into helical arrays on the membrane to stabilize and expand local membrane curvature underlying endosomal tubule formation. Thought to be a component of the originally described retromer complex (also called SNX-BAR retromer) which is a pentamer containing the heterotrimeric retromer cargo-selective complex (CSC), also described as vacuolar protein sorting subcomplex (VPS) and a heterodimeric membrane-deforming subcomplex formed between SNX1 or SNX2 and SNX5 or SNX6 (also called SNX-BAR subcomplex); the respective CSC and SNX-BAR subcomplexes associate with low affinity (Probable). Interacts with SNX5, SNX6, SNX32, VPS26A, VPS29, VPS35, DRD5, DENND5A, KALRN, RHOG (GDP-bound form) (PubMed:9819414, PubMed:11102511, PubMed:19619496, PubMed:19935774, PubMed:19619496, PubMed:20604901, PubMed:23085988, PubMed:23152498). The interaction with SNX2 is reported controversially (PubMed:9819414, PubMed:11997453, PubMed:19619496, PubMed:23085988). Interacts with DNAJC13; prevented by presence of HGS (PubMed:19874558). Interacts with HGS.
• Entry Function: Involved in several stages of intracellular trafficking. Interacts with membranes containing phosphatidylinositol 3-phosphate (PtdIns(3P)) or phosphatidylinositol 3,5-bisphosphate (PtdIns(3,5)P2) (PubMed:12198132). Acts in part as component of the retromer membrane-deforming SNX-BAR subcomplex. The SNX-BAR retromer mediates retrograde transport of cargo proteins from endosomes to the trans-Golgi network (TGN) and is involved in endosome-to-plasma membrane transport for cargo protein recycling. The SNX-BAR subcomplex functions to deform the donor membrane into a tubular profile called endosome-to-TGN transport carrier (ETC) (Probable). Can sense membrane curvature and has in vitro vesicle-to-membrane remodeling activity (PubMed:19816406, PubMed:23085988). Involved in retrograde endosome-to-TGN transport of lysosomal enzyme receptors (IGF2R, M6PR and SORT1) and Shiginella dysenteria toxin stxB. Plays a role in targeting ligand-activated EGFR to the lysosomes for degradation after endocytosis from the cell surface and release from the Golgi (PubMed:12198132, PubMed:15498486, PubMed:17550970, PubMed:17101778, PubMed:18088323, PubMed:21040701). Involvement in retromer-independent endocytic trafficking of P2RY1 and lysosomal degradation of protease-activated receptor-1/F2R (PubMed:16407403, PubMed:20070609). Promotes KALRN- and RHOG-dependent but retromer-independent membrane remodeling such as lamellipodium formation; the function is dependent on GEF activity of KALRN (PubMed:20604901). Required for endocytosis of DRD5 upon agonist stimulation but not for basal receptor trafficking (PubMed:23152498).
• Preparation and Storage: Store at -20 degree C. Avoid repeated freezing and thawing.

NCBI and Uniprot Product Information

• NCBI GI #: 339409190
• NCBI GeneID: 6642
• NCBI Accession #: NP_001229862.1
• NCBI GenBank Nucleotide #: NP_001229862.1
• UniProt Accession #: Q13596
• NCBI Official Full Name: sorting nexin-1 isoform d
• NCBI Official Synonym Full Names: sorting nexin 1
• NCBI Official Symbol: SNX1
• NCBI Official Synonym Symbols: VPS5; HsT17379
• NCBI Protein Information: sorting nexin-1
• UniProt Protein Name: Sorting nexin-1
• Protein Family: Sorting nexin
• UniProt Gene Name: SNX1
• UniProt Entry Name: SNX1_HUMAN

NCBI Description

This gene encodes a member of the sorting nexin family. Members of this family contain a phox (PX) domain, which is a phosphoinositide binding domain, and are involved in intracellular trafficking. This endosomal protein regulates the cell-surface expression of epidermal growth factor receptor. This protein also has a role in sorting protease-activated receptor-1 from early endosomes to lysosomes. This protein may form oligomeric complexes with family members. This gene results in three transcript variants encoding distinct isoforms. [provided by RefSeq, Jul 2008]

Uniprot Description

SNX1: May be involved in several stages of intracellular trafficking. Plays a role in targeting ligand-activated EGFR to the lysosomes for degradation after endocytosis from the cell surface and release from the Golgi. Component of the retromer complex, a complex required to retrieve lysosomal enzyme receptors (IGF2R and M6PR) from endosomes to the trans-Golgi network. Interacts with membranes containing phosphatidylinositol 3- phosphate (PtdIns(3P)) or phosphatidylinositol 3,5-bisphosphate (PtdIns(3,5)P2). Belongs to the sorting nexin family. 2 isoforms of the human protein are produced by alternative splicing.

Protein type: Vesicle

Chromosomal Location of Human Ortholog: 15q22.31

Cellular Component: Golgi apparatus; extrinsic to membrane; protein complex; membrane; intracellular membrane-bound organelle; retromer complex; early endosome membrane; lamellipodium; cytoplasm; endosome membrane; cytosol

Molecular Function: identical protein binding; protein binding; phosphoinositide binding; insulin receptor binding; epidermal growth factor receptor binding

Biological Process: intracellular protein transport; receptor internalization; vesicle organization and biogenesis; positive regulation of protein catabolic process; retrograde transport, endosome to Golgi