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SLC1A7 Membrane Protein Introduction

Introduction of SLC1A7

Solute Family 1, member 7 (SLC1A7) is a protein encoded by the SLC1A7 gene in humans. It is also known as excitatory amino acid transporter 5 (EAAT5) or the retinal glutamate transporter. SLC1A7 is mainly expressed on the retina and has a high affinity for the excitatory amino acid glutamic acid. When stimulated by this amino acid, SLC1A7 produces chloride ions. SLC1A7 is expressed in photoreceptors, bipolar disorder and amac secreting cells.

Basic Information of SLC1A7
Protein Name Excitatory amino acid transporter 5 (EAAT5)
Gene Name SLC1A7
Aliases Retinal glutamate transporter, Solute carrier family 1 member 7
Organism Homo sapiens (Human)
UniProt ID O00341
Transmembrane Times 10
Length (aa) 560
Sequence MVPHAILARGRDVCRRNGLLILSVLSVIVGCLLGFFLRTRRLSPQEISYFQFPGELLMRMLKMMILPLVVSSLMSGLASLDAKTSSRLGVLTVAYYLWTTFMAVIVGIFMVSIIHPGSAAQKETTEQSGKPIMSSADALLDLIRNMFPANLVEATFKQYRTKTTPVVKSPKVAPEEAPPRRILIYGVQEENGSHVQNFALDLTPPPEVVYKSEPGTSDGMNVLGIVFFSATMGIMLGRMGDSGAPLVSFCQCLNESVMKIVAVAVWYFPFGIVFLIAGKILEMDDPRAVGKKLGFYSVTVVCGLVLHGLFILPLLYFFITKKNPIVFIRGILQALLIALATSSSSATLPITFKCLLENNHIDRRIARFVLPVGATINMDGTALYEAVAAIFIAQVNNYELDFGQIITISITATAASIGAAGIPQAGLVTMVIVLTSVGLPTDDITLIIAVDWALDRFRTMINVLGDALAAGIMAHICRKDFARDTGTEKLLPCETKPVSLQEIVAAQQNGCVKSVAEASELTLGPTCPHHVPVQVEQDEELPAASLNHCTIQISELETNV

Function of SLC1A7 Protein

In the mammalian central nervous system, five subtypes were identified and named EAAT1 to EAAT5. It has been found that EAATs can regulate the currents induced by the sublayers beyond the prediction of stoichiometry, which is comparable in size to true ion channels. SLC1A7 has been shown to be a post-synaptic receptor and regulates the photoreaction of distant bipolar cells through its associated chloride conductance. SLC1A7 was cloned by Arizza et al., which is the least studied in all regions, probably due to a broad view that it is a retinal-specific glutamate transporter and therefore glutamate homeostasis with other tissues. Nothing.

The structure of SLC1A7 Protein. Fig.1 The structure of SLC1A7 Protein.

Application of SLC1A7 Protein in Literature

  1. Tse D.Y., et al. Possible Roles of Glutamate Transporter EAAT5 in Mouse Cone Depolarizing Bipolar Cell Light Responses: EAAT5-mediated light response in cone depolarizing bipolar cells. Vision research. 2014, (103):63-74. PubMed ID: 24972005.

    The immunohistochemical data suggest that the presence of postsynaptic SLC1A7 on some DBCRs and some dbcc provides an anatomical basis for the role of SLC1A7 in DBC photoreactions.

  2. Schneider N., et al. Functional Properties of the Retinal Glutamate Transporters GLT-1c and EAAT5.The Journal of Biological Chemistry. 2014,289 (3): 1815–1824. PubMed ID: 24307171.

    These data clarify the unique functional properties of SLC1A7, a low-affinity and low-capacity glutamate transport system that optimizes negative ion channels for anion conduction over a negative voltage range.

  3. Dalet A., et al. Glutamate Transporters EAAT4 and EAAT5 Are Expressed in Vestibular Hair Cells and Calyx Endings. PLoS ONE. 2012, 7 (9): e46261. PubMed ID: 23049999.

    This article offers an example of EAATs in presynaptic elements, implying the presence of transporters in hair cells.

  4. Gameiro A., et al. The Discovery of Slowness: Low-Capacity Transport and Slow Anion Channel Gating by the Glutamate Transporter EAAT5. Biophysical Journal. 2011, 100 (11): 2623–2632. PubMed ID: 21641307.

    These results suggest that SLC1A7 may not resemble a typical high-capacity glutamate transporter on the retina; instead, it may be a slow glutamate receptor and/or glutamate buffer system.

  5. Lee A., et al. Excitatory Amino Acid Transporter 5 Is Widely Expressed in Peripheral Tissues. European Journal of Histochemistry: EJH. 2013, 57 (1): e11. PubMed ID: 23549460.

    It is concluded that SLC1A7 is a widely distributed protein. Whether it acts as a glutamate transporter in all positions remains to be determined.

SLC1A7 Preparation Options

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

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