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SLC23A1 Membrane Protein Introduction

Introduction of SLC23A1

Solute carrier family 23 member 1 is a protein that in humans is encoded by the SLC23A1 gene. The SLC23A1 gene is 16096 bp long, contains 15 exons and maps to human chromosome 5q31.2-31.3. Analysis of the SLC23A1 genomic structure reveals the presence of classical CAAT and TATA 1 boxes, together with two AP-1 and one GATA1 binding sites. Human SLC23A1 lacks a seven amino acid fragment in the N-terminus, thus resulting in a protein of 598 amino acids.

Basic Information of SLC23A1
Protein Name Solute carrier family 23 member 1
Gene Name SLC23A1
Aliases Na(+)/L-ascorbic acid transporter 1, Sodium-dependent vitamin C transporter 1, hSVCT1, Yolk sac permease-like molecule 3
Organism Homo sapiens (Human)
UniProt ID Q9UHI7
Transmembrane Times 12
Length (aa) 598
Sequence MRAQEDLEGRTQHETTRDPSTPLPTEPKFDMLYKIEDVPPWYLCILLGFQHYLTCFSGTIAVPFLLAEALCVGHDQHMVSQLIGTIFTCVGITTLIQTTVGIRLPLFQASAFAFLVPAKAILALERWKCPPEEEIYGNWSLPLNTSHIWHPRIREVQGAIMVSSVVEVVIGLLGLPGALLNYIGPLTVTPTVSLIGLSVFQAAGDRAGSHWGISACSILLIILFSQYLRNLTFLLPVYRWGKGLTLLRIQIFKMFPIMLAIMTVWLLCYVLTLTDVLPTDPKAYGFQARTDARGDIMAIAPWIRIPYPCQWGLPTVTAAAVLGMFSATLAGIIESIGDYYACARLAGAPPPPVHAINRGIFTEGICCIIAGLLGTGNGSTSSSPNIGVLGITKVGSRRVVQYGAAIMLVLGTIGKFTALFSSLPDPILGGMFCTLFGMITAVGLSNLQFVDMNSSRNLFVLGFSMFFGLTLPNYLESNPGAINTGILEVDQILIVLLTTEMFVGGCLAFILDNTVPGSPEERGLIQWKAGAHANSDMSSSLKSYDFPIGMGIVKRITFLKYIPICPVFKGFSSSSKDQIAIPEDTPENTETASVCTKV

Function of SLC23A1 Membrane Protein

SLC23 proteins are surface glycoproteins encoded by two different genes, which are very similar in structure. They show distinct tissue distribution and functional characteristics, which indicate different physiological roles. SLC23A1 is involved in whole-body homeostasis of vitamin C, while SLC23A2 protects metabolically active cells against oxidative stress. SLC23A1, expressed on the apical membrane, transports vitamin C across the intestinal barrier, while SLC23A2 is located at the basolateral surface, where it should be involved in vitamin C transport from blood into enterocytes. Immunohistochemistry analysis shows that SLC23A1 is expressed in medullary rays and the brush border of proximal tubules. SLC23s functions are obligatorily dependent on sodium ions. Replacement of Na+ with K+, Li+ or coline almost completely abolishes ascorbate uptake. Distribution and kinetic parameters suggest that the primary role of SLC23A2 is to maintain the homeostasis of vitamin C in the whole-body.

Vitamin C transporters (SLC23A1 and SLC23A2) and their transport mechanisms in the skin. Fig.1 Vitamin C transporters (SLC23A1 and SLC23A2) and their transport mechanisms in the skin.

Application of SLC23A1 Membrane Protein in Literature

  1. Wade K.H., et al. Variation in the SLC23A1 gene does not influence cardiometabolic outcomes to the extent expected given its association with L-ascorbic acid. Am J Clin Nutr. 2015, 101(1): 202-209. PubMed ID: 25527764

    Authors find that there is no evidence showing a relation between the variation rs33972313 of SLC23A1 gene and cardiometabolic outcomes.

  2. de Jong T.M., et al. SLC23A1 polymorphism rs6596473 in the vitamin C transporter SVCT1 is associated with aggressive periodontitis. J Clin Periodontol. 2014, 41(6): 531-540. PubMed ID: 24708273

    SNP rs6596473 of SLC23A1 is suggested to be associated with AgP. These results supplement previous reports that vitamin C plays a role in the pathogenesis of periodontitis.

  3. Amir Shaghaghi M., et al. Polymorphisms in the sodium-dependent ascorbate transporter gene SLC23A1 are associated with susceptibility to Crohn disease. Am J Clin Nutr. 2014, 99(2): 378-383. PubMed ID: 24284447

    This article reveals that SLC23A1 variations can modulate the risk of CD, which has implications for understanding ascorbate transport in CD patients and provides a novel opportunity toward individualized nutritional therapy for patients carrying the disease-associated genotype.

  4. Duell E.J., et al. Vitamin C transporter gene (SLC23A1 and SLC23A2) polymorphisms, plasma vitamin C levels, and gastric cancer risk in the EPIC cohort. Genes Nutr. 2013, 8(6): 549-560. PubMed ID: 23737080

    Common variants in SLC23A1 and SLC23A2 may influence plasma vitamin C concentration independent of dietary intake.

  5. Boggavarapu R., et al. Expression, purification and low-resolution structure of human vitamin C transporter SVCT1 (SLC23A1). PLoS One. 2013, 8(10): e76427. PubMed ID: 24124560

    Authors successfully express the human vitamin C transporter-1 in Xenopus laevis oocytes and isolate highly pure protein in microgram amounts. Recombinant hSVCT1 is functional when expressed in oocytes and glycosylated.

SLC23A1 Preparation Options

To obtain the soluble and functional target protein, the versatile Magic™ membrane protein production platform in Creative Biolabs enables many flexible options, from which you can always find a better match for your particular project. Aided by our versatile Magic™ anti-membrane protein antibody discovery platform, we also provide customized anti-SLC23A1 antibody development services.


Creative Biolabs' skillful scientists are glad to leverage our expertise and advanced technologies to help you with the member protein research. If you are interested, please feel free to contact us for more details.


All listed services and products are For Research Use Only. Do Not use in any diagnostic or therapeutic applications.

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