Neutral amino acid transporter A

Protein-coding gene in the species Homo sapiens

SLC1A4

Identifiers

Aliases

SLC1A4, ASCT1, SATT, solute carrier family 1 member 4

External IDs

OMIM: 600229 MGI: 2135601 HomoloGene: 20655 GeneCards: SLC1A4

Gene location (Human)

Chr.	Chromosome 2 (human)^[1]

Band	2p14	Start	64,988,477 bp^[1]
Band	2p14	End	65,023,865 bp^[1]

Gene location (Mouse)

Chr.	Chromosome 11 (mouse)^[2]

Band	11 A3.1\|11 12.97 cM	Start	20,252,180 bp^[2]
Band	11 A3.1\|11 12.97 cM	End	20,282,713 bp^[2]

RNA expression pattern

Bgee

Human

Mouse (ortholog)

Top expressed in

sperm

spinal ganglia

entorhinal cortex

internal globus pallidus

nucleus accumbens

external globus pallidus

middle temporal gyrus

caudate nucleus

superior vestibular nucleus

synovial joint

Top expressed in

supraoptic nucleus

paraventricular nucleus of hypothalamus

arcuate nucleus

ascending aorta

crypt of lieberkuhn of small intestine

aortic valve

fossa

median eminence

medial vestibular nucleus

ventromedial nucleus

More reference expression data

BioGPS


More reference expression data

Gene ontology
Molecular function	L-glutamine transmembrane transporter activity L-threonine transmembrane transporter activity L-proline transmembrane transporter activity L-serine transmembrane transporter activity L-hydroxyproline transmembrane transporter activity L-cystine transmembrane transporter activity neutral amino acid transmembrane transporter activity L-alanine transmembrane transporter activity symporter activity chloride channel activity amino acid transmembrane transporter activity
Cellular component	integral component of membrane membrane melanosome plasma membrane integral component of plasma membrane cell surface neuronal cell body dendrite extracellular exosome intermediate filament centrosome microtubule organizing center
Biological process	synaptic transmission, glutamatergic cognition L-alanine transport proline transport hydroxyproline transport amino acid transport L-cystine transport L-serine transport glutamine transport threonine transport chloride transmembrane transport amino acid transmembrane transport proline transmembrane transport transmembrane transport chloride transport transport
Sources:Amigo / QuickGO

Orthologs

Species

Human

Mouse

Entrez


6509


55963

Ensembl


ENSG00000115902


ENSMUSG00000020142

UniProt


P43007


O35874

RefSeq (mRNA)


NM_001135581 NM_001193493 NM_003038 NM_001348406 NM_001348407


NM_018861

RefSeq (protein)


NP_001180422 NP_003029 NP_001335335 NP_001335336


NP_061349

Location (UCSC)

Chr 2: 64.99 – 65.02 Mb

Chr 11: 20.25 – 20.28 Mb

PubMed search

^[3]

^[4]

Wikidata

View/Edit Human

View/Edit Mouse

Neutral amino acid transporter A is a protein that in humans is encoded by the SLC1A4 gene.^[5]^[6]^[7] In humans, it is expressed in the brain, lung, skeletal muscle, intestine and kidney.^[8]

Function

The transporter is responsible for transport of L-serine, D-serine, L-alanine, L-cysteine, and L-threonine.

Pathology

Mutations of the gene cause a disease called spastic tetraplegia, thin corpus callosum, and progressive microcephaly (SPATCCM). This disorder is inherited in an autosomal recessive fashion.

Interactions

In melanocytic cells SLC1A4 gene expression may be regulated by MITF.^[9]

References

^ ^a ^b ^c GRCh38: Ensembl release 89: ENSG00000115902 – Ensembl, May 2017
^ ^a ^b ^c GRCm38: Ensembl release 89: ENSMUSG00000020142 – Ensembl, May 2017
^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^ Hofmann K, Düker M, Fink T, Lichter P, Stoffel W (November 1994). "Human neutral amino acid transporter ASCT1: structure of the gene (SLC1A4) and localization to chromosome 2p13-p15". Genomics. 24 (1): 20–26. doi:10.1006/geno.1994.1577. PMID 7896285.
^ Zerangue N, Kavanaugh MP (November 1996). "ASCT-1 is a neutral amino acid exchanger with chloride channel activity". The Journal of Biological Chemistry. 271 (45): 27991–27994. doi:10.1074/jbc.271.45.27991. PMID 8910405.
^ "Entrez Gene: SLC1A4 solute carrier family 1 (glutamate/neutral amino acid transporter), member 4".
^ Freidman N, Chen I, Wu Q, Briot C, Holst J, Font J, et al. (June 2020). "Amino Acid Transporters and Exchangers from the SLC1A Family: Structure, Mechanism and Roles in Physiology and Cancer". Neurochemical Research. 45 (6): 1268–1286. doi:10.1007/s11064-019-02934-x. PMID 31981058.
^ Hoek KS, Schlegel NC, Eichhoff OM, Widmer DS, Praetorius C, Einarsson SO, et al. (December 2008). "Novel MITF targets identified using a two-step DNA microarray strategy". Pigment Cell & Melanoma Research. 21 (6): 665–676. doi:10.1111/j.1755-148X.2008.00505.x. PMID 19067971. S2CID 24698373.

Arriza JL, Kavanaugh MP, Fairman WA, Wu YN, Murdoch GH, North RA, et al. (July 1993). "Cloning and expression of a human neutral amino acid transporter with structural similarity to the glutamate transporter gene family". The Journal of Biological Chemistry. 268 (21): 15329–15332. doi:10.1016/S0021-9258(18)82257-8. PMID 8101838.
Maruyama K, Sugano S (January 1994). "Oligo-capping: a simple method to replace the cap structure of eukaryotic mRNAs with oligoribonucleotides". Gene. 138 (1–2): 171–174. doi:10.1016/0378-1119(94)90802-8. PMID 8125298.
Shafqat S, Tamarappoo BK, Kilberg MS, Puranam RS, McNamara JO, Guadaño-Ferraz A, et al. (July 1993). "Cloning and expression of a novel Na(+)-dependent neutral amino acid transporter structurally related to mammalian Na+/glutamate cotransporters". The Journal of Biological Chemistry. 268 (21): 15351–15355. doi:10.1016/S0021-9258(18)82263-3. hdl:10261/152393. PMID 8340364.
Tamarappoo BK, McDonald KK, Kilberg MS (March 1996). "Expressed human hippocampal ASCT1 amino acid transporter exhibits a pH-dependent change in substrate specificity". Biochimica et Biophysica Acta (BBA) - Biomembranes. 1279 (2): 131–136. doi:10.1016/0005-2736(95)00259-6. PMID 8603078.
Suzuki Y, Yoshitomo-Nakagawa K, Maruyama K, Suyama A, Sugano S (October 1997). "Construction and characterization of a full length-enriched and a 5'-end-enriched cDNA library". Gene. 200 (1–2): 149–156. doi:10.1016/S0378-1119(97)00411-3. PMID 9373149.
Marin M, Tailor CS, Nouri A, Kabat D (September 2000). "Sodium-dependent neutral amino acid transporter type 1 is an auxiliary receptor for baboon endogenous retrovirus". Journal of Virology. 74 (17): 8085–8093. doi:10.1128/JVI.74.17.8085-8093.2000. PMC 112341. PMID 10933718.
Younes M, Pathak M, Finnie D, Sifers RN, Liu Y, Schwartz MR (2001). "Expression of the neutral amino acids transporter ASCT1 in esophageal carcinomas". Anticancer Research. 20 (5C): 3775–3779. PMID 11268453.
Pinilla J, Barber A, Lostao MP (December 2001). "Active transport of alanine by the neutral amino-acid exchanger ASCT1". Canadian Journal of Physiology and Pharmacology. 79 (12): 1023–1029. doi:10.1139/cjpp-79-12-1023. PMID 11824937.
Lavillette D, Marin M, Ruggieri A, Mallet F, Cosset FL, Kabat D (July 2002). "The envelope glycoprotein of human endogenous retrovirus type W uses a divergent family of amino acid transporters/cell surface receptors". Journal of Virology. 76 (13): 6442–6452. doi:10.1128/JVI.76.13.6442-6452.2002. PMC 136247. PMID 12050356.
Marin M, Lavillette D, Kelly SM, Kabat D (March 2003). "N-linked glycosylation and sequence changes in a critical negative control region of the ASCT1 and ASCT2 neutral amino acid transporters determine their retroviral receptor functions". Journal of Virology. 77 (5): 2936–2945. doi:10.1128/JVI.77.5.2936-2945.2003. PMC 149750. PMID 12584318.
Chi A, Valencia JC, Hu ZZ, Watabe H, Yamaguchi H, Mangini NJ, et al. (November 2006). "Proteomic and bioinformatic characterization of the biogenesis and function of melanosomes". Journal of Proteome Research. 5 (11): 3135–3144. doi:10.1021/pr060363j. PMID 17081065.

This article incorporates text from the United States National Library of Medicine, which is in the public domain.

Membrane proteins, carrier proteins: membrane transport proteins solute carrier (TC 2A)

By group

SLC1–10

(1):	high affinity glutamate and neutral amino-acid transporter SLC1A1 2 3 4 5 6 7
(2):	facilitative GLUT transporter SLC2A1 2 3 4 5 6 7 8 9 10 11 12 13 14
(3):	heavy subunits of heterodimeric amino-acid transporters SLC3A1 2
(4):	bicarbonate transporter SLC4A1 2 3 4 5 6 7 8 9 10 11
(5):	sodium glucose cotransporter SLC5A1 2 3 4 5 6 7 8 9 10 11 12
(6):	sodium- and chloride- dependent sodium:neurotransmitter symporters SLC6A1 SLC6A2 SLC6A3 SLC6A4 SLC6A5 SLC6A6 SLC6A7 SLC6A8 SLC6A9 SLC6A10 SLC6A11 SLC6A12 SLC6A13 SLC6A14 SLC6A15 SLC6A16 SLC6A17 SLC6A18 SLC6A19 SLC6A20
(7):	cationic amino-acid transporter/glycoprotein-associated SLC7A1 SLC7A2 SLC7A3 SLC7A4 glycoprotein-associated/light or catalytic subunits of heterodimeric amino-acid transporters SLC7A5 SLC7A6 SLC7A7 SLC7A8 SLC7A9 SLC7A10 SLC7A11 SLC7A13 SLC7A14
(8):	Na⁺/Ca²⁺ exchanger SLC8A1 SLC8A2 SLC8A3
(9):	Na⁺/H⁺ exchanger SLC9A1 SLC9A2 SLC9A3 SLC9A4 SLC9A5 SLC9A6 SLC9A7 SLC9A8 SLC9A9 SLC9A10 SLC9A11
(10):	sodium bile salt cotransport SLC10A1 SLC10A2 SLC10A3 SLC10A4 SLC10A5 SLC10A6 SLC10A7 10A1 10A2 10A3 10A7

SLC11–20

(11):	proton coupled metal ion transporter SLC11A1 SLC11A2 11A3
(12):	electroneutral cation-Cl cotransporter SLC12A1 SLC12A2 SLC12A3 SLC12A4 SLC12A5 SLC12A6 SLC12A7 SLC12A8 SLC12A9
(13):	human Na⁺-sulfate/carboxylate cotransporter SLC13A1 SLC13A2 SLC13A3 SLC13A4 SLC13A5
(14):	urea transporter SLC14A1 SLC14A2
(15):	proton oligopeptide cotransporter SLC15A1 SLC15A2 SLC15A3 SLC15A4
(16):	monocarboxylate transporter SLC16A1 SLC16A2 SLC16A3 SLC16A4 SLC16A5 SLC16A6 SLC16A7 SLC16A8 SLC16A9 SLC16A10 SLC16A11 SLC16A12 SLC16A13 SLC16A14
(17):	Vesicular glutamate transporter 1 SLC17A1 SLC17A2 SLC17A3 SLC17A4 SLC17A5 SLC17A6 SLC17A7 SLC17A8 SLC17A9
(18):	vesicular monoamine transporter SLC18A1 SLC18A2 SLC18A3
(19):	folate/thiamine transporter SLC19A1 SLC19A2 SLC19A3
(20):	type III Na⁺-phosphate cotransporter SLC20A1 SLC20A2

SLC21–30

(21):	Organic anion-transporting polypeptide SLCO1A2 SLCO1B1 SLCO1B3 SLCO1B4 SLCO1C1 SLCO2A1 SLCO2B1 SLCO3A1 SLCO4A1 SLCO4C1 SLCO5A1(SLCO6A1)
(22):	organic cation/anion/zwitterion transporter SLC22A1 SLC22A2 SLC22A3 SLC22A4 SLC22A5 SLC22A6 SLC22A7 SLC22A8 SLC22A9 SLC22A10 SLC22A11 SLC22A12 SLC22A13 SLC22A14 SLC22A15 SLC22A16 SLC22A17 SLC22A18 SLC22A19 SLC22A20
(23):	Na+-dependent ascorbic acid transporter SLC23A1 SLC23A2 SLC23A3 SLC23A4
(24):	Na⁺/(Ca²⁺-K⁺) exchanger SLC24A1 SLC24A2 SLC24A3 SLC24A4 SLC24A5 SLC24A6
(25):	mitochondrial carrier SLC25A1 SLC25A2 SLC25A3 SLC25A4 SLC25A5 SLC25A6 SLC25A7 SLC25A8 SLC25A9 SLC25A10 SLC25A11 SLC25A12 SLC25A13 SLC25A14 SLC25A15 SLC25A16 SLC25A17 SLC25A18 SLC25A19 SLC25A20 SLC25A21 SLC25A22 SLC25A23 SLC25A24 SLC25A25 SLC25A26 SLC25A27 SLC25A28 SLC25A29 SLC25A30 SLC25A31 SLC25A32 SLC25A33 SLC25A34 SLC25A35 SLC25A36 SLC25A37 SLC25A38 SLC25A39 SLC25A40 SLC25A41 SLC25A42 SLC25A43 SLC25A44 SLC25A45 SLC25A46
(26):	multifunctional anion exchanger SLC26A1 SLC26A2 SLC26A3 SLC26A4 SLC26A5 SLC26A6 SLC26A7 SLC26A8 SLC26A9 SLC26A10 SLC26A11
(27):	fatty acid transport proteins SLC27A1 SLC27A2 SLC27A3 SLC27A4 SLC27A5 SLC27A6
(28):	Na⁺-coupled nucleoside transport (SLC28A1 SLC28A2 SLC28A3
(29):	facilitative nucleoside transporter SLC29A1 SLC29A2 SLC29A3 SLC29A4
(30):	zinc efflux SLC30A1 SLC30A2 SLC30A3 SLC30A4 SLC30A5 SLC30A6 SLC30A7 SLC30A8 SLC30A9 SLC30A10

SLC31–40

(31):	copper transporter SLC31A1
(32):	Vesicular glutamate transporter 1 SLC32A1
(33):	Acetyl-CoA transporter SLC33A1
(34):	type II Na⁺-phosphate cotransporter SLC34A1 SLC34A2 SLC34A3
(35):	nucleoside-sugar transporter SLC35A1 SLC35A2 SLC35A3 SLC35A4 SLC35A5 SLC35B1 SLC35B2 SLC35B3 SLC35B4 SLC35C1 SLC35C2 SLC35D1 SLC35D2 SLC35D3 SLC35E1 SLC35E2 SLC35E3 SLC35E4
(36):	proton-coupled amino-acid transporter SLC36A1 SLC36A2 SLC36A3 SLC36A436A2
(37):	sugar-phosphate/phosphate exchanger SLC37A1 SLC37A2 SLC37A3 SLC37A4
(38):	System A & N, sodium-coupled neutral amino-acid transporter SLC38A1 SLC38A2 SLC38A3 SLC38A4 SLC38A5 SLC38A6 SLC38A10
(39):	metal ion transporter SLC39A1 SLC39A2 SLC39A3 SLC39A4 SLC39A5 SLC39A6 SLC39A7 SLC39A8 SLC39A9 SLC39A10 SLC39A11 SLC39A12 SLC39A13 SLC39A14
(40):	basolateral iron transporter SLC40A1

SLC41–48

(41):	Magnesium transporter E SLC41A1 SLC41A2 SLC41A3
(42):	Ammonia transporter RhAG RhBG RhCG
(43):	Na⁺-independent, system-L like amino-acid transporter SLC43A1 SLC43A2 SLC43A3
(44):	Choline-like transporter SLC44A1 SLC44A2 SLC44A3 SLC44A4 SLC44A5
(45):	Putative sugar transporter SLC45A1 SLC45A2 SLC54A3 SLC45A4
(46):	Folate transporter SLC46A1 SLC46A2
(47):	multidrug and toxin extrusion SLC47A1 SLC47A2
(48):	Heme transporter

SLCO1–4
O1A2 O1B1 O1B3 O2B1 O431 O4A1

Ion pumps

Symporter, Cotransporter	Na⁺/K⁺,Cl⁻ Na⁺/P_i3 Na⁺/Cl⁻ Na⁺/glucose Na⁺/I⁻ Cl⁻/K⁺ 4 5
Antiporter (exchanger)	Na⁺/H⁺ Na⁺/Ca²⁺ Na⁺/(Ca²⁺-K⁺) - Cl⁻/HCO⁻ ₃ (Band 3) Cl⁻-formate Cl⁻-oxalate