Weight | 1 lbs |
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Dimensions | 9 × 5 × 2 in |
accession | P61916 |
express system | HEK293 |
product tag | C-His |
purity | > 95% as determined by Tris-Bis PAGE |
background | The Niemann Pick type C (NPC) proteins, NPC1 and NPC2, are involved in the lysosomal storage disease, NPC disease. The formation of a NPC1⁻NPC2 protein⁻protein complex is believed to be necessary for the transfer of cholesterol and lipids out of the late endosomal (LE)/lysosomal (Lys) compartments. Mutations in either NPC1 or NPC2 can lead to an accumulation of cholesterol and lipids in the LE/Lys, the primary phenotype of the NPC disease. |
molecular weight | The protein has a predicted MW of 15.67 kDa. Due to glycosylation, the protein migrates to 21-24 kDa and 27-35 kDa kDa based on Tris-Bis PAGE result. |
available size | 100 µg, 500 µg |
endotoxin | Less than 1EU per μg by the LAL method. |
Human NPC2 Protein 2353
$203.00 – $675.00
Summary
- Expression: HEK293
- Pure: Yes (SDS-PAGE)
- Amino Acid Range: Glu20-Leu151
Human NPC2 Protein 2353
protein |
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Size and concentration 100, 500µg and lyophilized |
Form Lyophilized |
Storage Instructions Valid for 12 months from date of receipt when stored at -80°C. Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles. |
Storage buffer Shipped at ambient temperature. |
Purity > 95% as determined by Tris-Bis PAGE |
target relevance |
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The Niemann Pick type C (NPC) proteins, NPC1 and NPC2, are involved in the lysosomal storage disease, NPC disease. The formation of a NPC1⁻NPC2 protein⁻protein complex is believed to be necessary for the transfer of cholesterol and lipids out of the late endosomal (LE)/lysosomal (Lys) compartments. Mutations in either NPC1 or NPC2 can lead to an accumulation of cholesterol and lipids in the LE/Lys, the primary phenotype of the NPC disease. |
Protein names NPC intracellular cholesterol transporter 2 (Epididymal secretory protein E1) (Human epididymis-specific protein 1) (He1) (Niemann-Pick disease type C2 protein) |
Gene names NPC2,NPC2 HE1 |
Protein family NPC2 family |
Mass 9606Da |
Function Intracellular cholesterol transporter which acts in concert with NPC1 and plays an important role in the egress of cholesterol from the lysosomal compartment (PubMed:11125141, PubMed:15937921, PubMed:17018531, PubMed:18772377, PubMed:29580834). Unesterified cholesterol that has been released from LDLs in the lumen of the late endosomes/lysosomes is transferred by NPC2 to the cholesterol-binding pocket in the N-terminal domain of NPC1 (PubMed:17018531, PubMed:18772377, PubMed:27238017). May bind and mobilize cholesterol that is associated with membranes (PubMed:18823126). NPC2 binds cholesterol with a 1:1 stoichiometry (PubMed:17018531). Can bind a variety of sterols, including lathosterol, desmosterol and the plant sterols stigmasterol and beta-sitosterol (PubMed:17018531). The secreted form of NCP2 regulates biliary cholesterol secretion via stimulation of ABCG5/ABCG8-mediated cholesterol transport (By similarity). |
Catalytic activity #N/A |
Subellular location Secreted. Endoplasmic reticulum. Lysosome. Note=Interaction with cell-surface M6PR mediates endocytosis and targeting to lysosomes. |
Tissues Detected in gallbladder bile (PubMed:21315718). Detected in fibroblasts, kidney, liver, spleen, small intestine, placenta and testis (at protein level) (PubMed:11125141). Epididymis. |
Structure Interacts with NPC1 (via the second lumenal domain) in a cholestrol-dependent manner (PubMed:18772377, PubMed:27238017, PubMed:27551080). Interacts with NUS1/NgBR, the interaction stabilizes NCP2 and regulates cholesterol trafficking (PubMed:19723497). Interacts with DHDDS (PubMed:15110773). Interacts with NEDD4L (via C2 domain) (PubMed:19664597). Interacts with NPC1L1 (PubMed:22095670). |
Domain Bi |
Target Relevance information above includes information from UniProt accession: P61916 |
The UniProt Consortium |
Publications
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Protocols
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