SKU: 50874791750

NPC1 His Tag Protein, Human

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Description

NPC1 His Tag Protein, HumanProduct Specification Species Human Synonyms NPC1, NPC Protein Accession O15118 1 Amino Acid Sequence Arg372 Phe622, with N terminal His Expression System HEK293 Molecular Weight 40 50 kDa (Reducing) Purity 95% by SDS PAGE & >95% by SEC HPLC Endotoxin <0. 1EU g Conjugation Unconjugated Tag His Tag Physical Appearance Lyophilized Powder Storage Buffer PBS, pH7. 4,5% trehalose Reconstitution Reconstitute at 0. 1 1 mg ml according to the size in

Product Specification


Species Human
Synonyms NPC1, NPC Protein
Accession O15118-1
Amino Acid Sequence Arg372-Phe622, with N-terminal His
Expression System HEK293
Molecular Weight 40-50 kDa (Reducing)
Purity >95% by SDS-PAGE & >95% by SEC-HPLC
Endotoxin <0.1EU/μg
Conjugation Unconjugated
Tag His Tag
Physical Appearance Lyophilized Powder
Storage Buffer PBS, pH7.4,5% trehalose
Reconstitution Reconstitute at 0.1-1 mg/ml according to the size in ultrapure water after rapid centrifugation.
Stability & Storage · 12 months from date of receipt, lyophilized powder stored at -20 to -80℃.
· 3 months, -20 to -80℃ under sterile conditions after reconstitution.
· 1 week, 2 to 8℃ under sterile conditions after reconstitution.
· Please avoid repeated freeze-thaw cycles.
Reference

J P Davies, Y A Ioannou. Dupilumab for the treatment of asthma. Topological analysis of Niemann-Pick C1 protein reveals that the membrane orientation of the putative sterol-sensing domain is identical to those of 3-hydroxy-3-methylglutaryl-CoA reductase and sterol regulatory element binding protein cleavage-activating protein.J Biol Chem. 2000 Aug 11;275(32):24367-74.

Background

The Niemann-Pick C1 (NPC1) protein is predicted to be a polytopic glycoprotein, and it contains a region with extensive homology to the sterol-sensing domains (SSD) of 3-hydroxy-3-methylglutaryl-coenzyme A reductase (HMG-R) and sterol regulatory element binding protein cleavage-activating protein (SCAP). To aid the functional characterization of NPC1, a model of NPC1 topology was evaluated by expression of epitope-tagged NPC1 proteins and investigation of epitope accessibility in selectively permeabilized cells. These results were further confirmed by expression of NPC1 and identification of glycosylated domains that are located in the lumen of the endoplasmic reticulum. Our data indicate that this glycoprotein contains 13 transmembrane domains, 3 large and 4 small luminal loops, 6 small cytoplasmic loops, and a cytoplasmic tail. Furthermore, our data show that the putative SSD of NPC1 is oriented in the same manner as those of HMG-R and SCAP, providing strong evidence that this domain is functionally important.

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SKU: 50874791750

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Reviewed in the United States on April 26, 2026
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Bryan Combs
San Leandro, US
★★★★★ 5
Dress shoes
Size: 9, Color: Light Brown/Coffee
Very comfortable and well made shoes.
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Reviewed in the United States on May 24, 2026
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erick
Louisville, US
★★★★★ 3
Runs big
Size: 10, Color: Black
Too big , looks okay. Try 1 size down
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Reviewed in the United States on May 13, 2026
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Marco Cervantes
Natrona Heights, US
★★★★★ 5
Great shoes
Size: 10 Wide, Color: Brown, Size: 10 Wide, Color: Brown
This shoe is incredibly comfortable and durable. I work in custodial work as management. However, sometimes I have to help my team when we are low manned. Just recently I had to help my team auto scrub a restroom. My shoes felt lightweight and were completely easy to clean. I was worried I would be slipping on sudsy water. To my surprise, these shoes gripped on to the floor nicely. I love the versatility of having a working shoe with the great style Bruno Marc provides. The shoe is breathable and true to size. I ordered the black pair as well and have had them for about 3 months. Highly recommend these amazing shoes.
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Reviewed in the United States on May 28, 2026
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angieg
Birmingham, US
★★★★★ 5
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Size: 8.5, Color: Brown
Bought these shoes at the last minute for my husband to wear to an event. They arrived overnight and did not disappoint. They are true to size, high quality, lightweight, and they look great on. Can be worn with jeans to a casual event or with slacks to a more formal event . He loves them and said they are extremely comfortable.
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Reviewed in the United States on May 25, 2026

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