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SLC1A3 Membrane Protein Introduction

Introduction of SLC1A3

Solute Family 1, member 3 (SLC1A3) is a protein that, in humans, is encoded by the SLC1A3 gene. SLC1A3 is a glial high-affinity glutamate transporter. SLC1A3 is commonly referred to as glutamate aspartate transporter (GLAST) or excitatory amino acid transporter 1 (EAAT1). SLC1A3 is primarily expressed in the serosa, enabling it to remove glutamate from the extracellular space. It is also localized in the mitochondrial membrane as part of the malate-aspartate shuttle.

Basic Information of SLC1A3
Protein Name Excitatory amino acid transporter 1 (EAAT1)
Gene Name SLC1A3
Aliases Sodium-dependent glutamate/aspartate transporter 1 (GLAST-1), Solute carrier family 1 member 3
Organism Homo sapiens (Human)
UniProt ID P43003
Transmembrane Times 8
Length (aa) 542
Sequence MTKSNGEEPKMGGRMERFQQGVRKRTLLAKKKVQNITKEDVKSYLFRNAFVLLTVTAVIVGTILGFTLRPYRMSYREVKYFSFPGELLMRMLQMLVLPLIISSLVTGMAALDSKASGKMGMRAVVYYMTTTIIAVVIGIIIVIIIHPGKGTKENMHREGKIVRVTAADAFLDLIRNMFPPNLVEACFKQFKTNYEKRSFKVPIQANETLVGAVINNVSEAMETLTRITEELVPVPGSVNGVNALGLVVFSMCFGFVIGNMKEQGQALREFFDSLNEAIMRLVAVIMWYAPVGILFLIAGKIVEMEDMGVIGGQLAMYTVTVIVGLLIHAVIVLPLLYFLVTRKNPWVFIGGLLQALITALGTSSSSATLPITFKCLEENNGVDKRVTRFVLPVGATINMDGTALYEALAAIFIAQVNNFELNFGQIITISITATAASIGAAGIPQAGLVTMVIVLTSVGLPTDDITLIIAVDWFLDRLRTTTNVLGDSLGAGIVEHLSRHELKNRDVEMGNSVIEENEMKKPYQLIAQDNETEKPIDSETKM

Function of SLC1A3 Protein

SLC1A3 is an isoform in the body. SLC1A3 regulates the transport of glutamate and aspartic acid with reverse transport of 3 Na+ and 1 H+ cation and 1 K+ cation. This joint transport coupling (or symport) allows the transfer of glutamate into the cell to counter the concentration gradient. It is associated with type 6 ataxia. Dl-3-beta-benzyloxyaspartate (TBOA) is an inhibitor of excitatory amino acid transporters. A selective inhibitor of SLC1A3 was recently discovered, based on 25 combinations of substitutions, 2-amino-5-oxo-5,6,7,8-tetrahydro-chromium-3-carbonyl at 4 and 7 positions.

The structure of SLC1A3 Protein. Fig.1 The structure of SLC1A3 Protein.

Application of SLC1A3 Protein in Literature

  1. Nielson C. M., et al. Novel Genetic Variants Associated With Increased Vertebral Volumetric BMD, Reduced Vertebral Fracture Risk, and Increased Expression of SLC1A3 and EPHB2. Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research. 2016, 31 (12): 2085–2097. PubMed ID: 27476799.

    This is the first study of clinically relevant vertebral osteoporosis phenotypes for linkSLC1A3 and EPHB2. These results may help elucidate vertebral biology and new ways to reduce the incidence of vertebral fractures.

  2. Sada A., et al. Slc1a3-CreER as a Targeting Tool for the K6+ Epithelial Stem Cell Niche and Its Precursors during Mouse Hair Follicle Cycle. The Journal of investigative dermatology. 2017, 137 (7): 1569–1571. PubMed ID: 28259680.

    This article shows that SLC1A3-CreER is also induced in hydrogen fluoride in anagen, and reports the pattern of labeling produced during the different stages of TBIL, further examining its role as a niche and its crosstalk with high-frequency stem cells.

  3. Hu H.X., et al. Hypoxia-Inducible Factors Enhance Glutamate Signaling in Cancer Cells. Oncotarget. 2014, 5 (19): 8853–8868. PubMed ID: 25326682.

    These findings support the fact that Hypoxia-Inducible Factors regulate SLC1A1 and SLC1A3 gene expression in hypoxic Hep3B cells.

  4. Kovermann P., et al. Impaired K+ Binding to Glial Glutamate Transporter EAAT1 in Migraine. Scientific Reports. 2017, (7): 13913. PubMed ID: 29066757.

    These findings extend the phenotype profile of the SLC1A3 gene variant, and imply that the impaired K+ binding with hEAAT1 may be a new mechanism of glutamate transport dysfunction in human disease.

  5. Lee D.H., et al. Fingolimod Effects in Neuroinflammation: Regulation of Astroglial Glutamate Transporters? PLoS ONE. 2017,12 (3): e0171552. PubMed ID: 28273090.

    The results reveal that on the messenger RNA and protein levels, the anti-inflammatory effects of fingolimod may restore the reduced expression of SLC1A2 and SLC1A3.

SLC1A3 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-SLC1A3 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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