SLC13A4 Membrane Protein Introduction

Introduction of SLC13A4

Solute carrier family 13 member 4 (SLC13A4) is a member of SLC13 family with 12 transmembrane structures. Recent researches show that SLC13A4 may cooperate with SLC13A1 in structure, organization and tissue expression. It also influences fetal development. The loss of the sulfate transporter SLC13A4 in the placenta may cause severe fetal abnormalities and death in mice, as well as severe developmental defects and embryonic lethality. Besides, SLC13A4 is also responsible for skeletal development in mice.

Basic Information of SLC13A4
Protein Name	Solute carrier family 13 member 4
Gene Name	SLC13A4
Aliases	Na(+)/sulfate cotransporter SUT-1(NaS2)
Organism	Homo sapiens (Human)
UniProt ID	Q9UKG4
Transmembrane Times	12
Length (aa)	626
Sequence	MGLLQGLLRVRKLLLVVCVPLLLLPLPVLHPSSEASCAYVLIVTAVYWVSEAVPLGAAALVPAFLYPFFGVLRSNEVAAEYFKNTTLLLVGVICVAAAVEKWNLHKRIALRMVLMAGAKPGMLLLCFMCCTTLLSMWLSNTSTTAMVMPIVEAVLQELVSAEDEQLVAGNSNTEEAEPISLDVKNSQPSLELIFVNEESNADLTTLMHNENLNGVPSITNPIKTANQHQGKKQHPSQEKPQVLTPSPRKQKLNRKYRSHHDQMICKCLSLSISYSATIGGLTTIIGTSTSLIFLEHFNNQYPAAEVVNFGTWFLFSFPISLIMLVVSWFWMHWLFLGCNFKETCSLSKKKKTKREQLSEKRIQEEYEKLGDISYPEMVTGFFFILMTVLWFTREPGFVPGWDSFFEKKGYRTDATVSVFLGFLLFLIPAKKPCFGKKNDGENQEHSLGTEPIITWKDFQKTMPWEIVILVGGGYALASGSKSSGLSTWIGNQMLSLSSLPPWAVTLLACILVSIVTEFVSNPATITIFLPILCSLSETLHINPLYTLIPVTMCISFAVMLPVGNPPNAIVFSYGHCQIKDMVKAGLGVNVIGLVIVMVAINTWGVSLFHLDTYPAWARVSNITDQA

Function of SLC13A4 Membrane Protein

SLC13A4 is closely related to sodium/sulfate cotransporter in human, which mediates sulfate reabsorption in the high endothelial venules (HEV). Studies have shown that the transporting function of SLC13A4 can be inhibited by many factors, like thiosulfate, phosphate, molybdate, selenate and tungstate. While, this protein cannot be inhibited by oxalate, citrate, succinate, phenol red or 4,4'-diisothiocyanostilbene-2,2'-disulfonic acid (DIDS). The main function of SLC13A4 is sulfate symporter activity, as well as anion transmembrane transport and sulfate transport.

Fig.1 Predicted topology of the human SLC13A4 protein depicting the location of validated missense variants. (Zhang, 2017)

Application of SLC13A4 Membrane Protein in Literature

Markovich D., et al. Functional characterization and genomic organization of the human Na(+)-sulfate cotransporter hNaS2 gene (SLC13A4). Biochem Biophys Res Commun. 2005, 326(4):729-34. PubMed ID: 15607730

The authors find the SLC13A4 gene contains 16 exons, spanning over 47kb in length. Its 5'-flanking region contains CAAT- and GC-box motifs, and a number of putative transcription factor binding sites, including GATA-1, AP-1, and AP-2 consensus sequences.
Dawson P.A., et al. The rat Na⁺-sulfate cotransporter rNaS2: functional characterization, tissue distribution, and gene (slc13a4) structure. Pflugers Arch. 2005, 450(4):262-8. PubMed ID: 15889308

This article is the first study to characterize rNaS2 transport kinetics, define its tissue distribution, and resolve its gene (slc13a4) structure and 5' flanking region.
Dawson P.A., et al. Molecular cloning and characterization of the mouse Na+ sulfate cotransporter gene (Slc13a4): structure and expression. Genes Genet Syst. 2006, 81(4):265-72. PubMed ID: 17038798

In this article, authors define the tissue distribution of mNaS2 and resolve its cDNA and gene structures, which will help to investigate mNaS2 gene expression in vivo and determine its role in mammalian physiology.
Simmons D.G., et al. Human placental sulfate transporter mRNA profiling from term pregnancies identifies abundant SLC13A4 in syncytiotrophoblasts and SLC26A2 in cytotrophoblasts. Placenta. 2013, 34(4):381-4. PubMed ID: 23453247

This article suggests SLC13A4 and SLC26A2 are the most abundant sulfate transporter mRNAs, which localizes to syncytiotrophoblast and cytotrophoblast cells, respectively. It indicates important physiological roles of SLC13A4 and SLC26A2 in human placental sulfate transport.
Jefferis J., et al. Molecular analysis of the human SLC13A4 sulfate transporter gene promoter. Biochem Biophys Res Commun. 2013, 433(1):79-83. PubMed ID: 23485456

The results show that the conserved NFY, SP1, KLF7, ZIC2 and HEN1 motifs in the SLC13A4 promoter of placental species but not in non-placental species may play a potential role for these putative transcriptional factors binding motifs in the physiological control of SLC13A4 mRNA expression.

SLC13A4 Preparation Options

Membrane protein studies have got great progress over the past few years. Based on our versatile Magic™ membrane protein production platform, we can provide a series of membrane protein preparation services in reconstitution forms as well as multiple active formats for worldwide customers. Besides, aided by our versatile Magic™ anti-membrane protein antibody discovery platform, we also provide customized anti-SLC13A4 antibody development services.

During the past years, Creative Biolabs has successfully generated many functional membrane proteins for our global customers. It's our pleasure to boost the development of our clients’ programs with our one-stop, custom-oriented service. For more detailed information, please feel free to contact us.

Reference

Zhang Z, et al. (2017). Molecular analysis of sequence and splice variants of the human SLC13A4 sulfate transporter. Molecular Genetics and Metabolism. 121(1), 35-42.

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

	USA: Europe: Germany:
	Call us at: USA: UK: Germany:
	Fax:
	Email: