NameSodium-coupled neutral amino acid transporter 3
Synonyms
  • G17
  • N-system amino acid transporter 1
  • Na(+)-coupled neutral amino acid transporter 3
  • NAT1
  • SN1
  • SNAT3
  • Solute carrier family 38 member 3
  • System N amino acid transporter 1
Gene NameSLC38A3
OrganismHuman
Amino acid sequence
>lcl|BSEQ0010234|Sodium-coupled neutral amino acid transporter 3
MEAPLQTEMVELVPNGKHSEGLLPVITPMAGNQRVEDPARSCMEGKSFLQKSPSKEPHFT
DFEGKTSFGMSVFNLSNAIMGSGILGLAYAMANTGIILFLFLLTAVALLSSYSIHLLLKS
SGVVGIRAYEQLGYRAFGTPGKLAAALAITLQNIGAMSSYLYIIKSELPLVIQTFLNLEE
KTSDWYMNGNYLVILVSVTIILPLALMRQLGYLGYSSGFSLSCMVFFLIAVIYKKFHVPC
PLPPNFNNTTGNFSHVEIVKEKVQLQVEPEASAFCTPSYFTLNSQTAYTIPIMAFAFVCH
PEVLPIYTELKDPSKKKMQHISNLSIAVMYIMYFLAALFGYLTFYNGVESELLHTYSKVD
PFDVLILCVRVAVLTAVTLTVPIVLFPVRRAIQQMLFPNQEFSWLRHVLIAVGLLTCINL
LVIFAPNILGIFGVIGATSAPFLIFIFPAIFYFRIMPTEKEPARSTPKILALCFAMLGFL
LMTMSLSFIIIDWASGTSRHGGNH
Number of residues504
Molecular Weight55772.405
Theoretical pI8.01
GO Classification
Functions
  • L-glutamine transmembrane transporter activity
  • L-alanine transmembrane transporter activity
  • L-asparagine transmembrane transporter activity
  • L-histidine transmembrane transporter activity
  • antiporter activity
  • symporter activity
Processes
  • glutamine transport
  • asparagine transport
  • cellular response to potassium ion starvation
  • histidine transport
  • ion transport
  • L-alanine transport
  • sodium ion transport
  • L-histidine transmembrane transport
  • amino acid transport
  • positive regulation of transcription from RNA polymerase II promoter in response to acidic pH
  • transmembrane transport
Components
  • plasma membrane
  • integral component of plasma membrane
General FunctionSymporter activity
Specific FunctionSodium-dependent amino acid/proton antiporter. Mediates electrogenic cotransport of glutamine and sodium ions in exchange for protons. Also recognizes histidine, asparagine and alanine. May mediate amino acid transport in either direction under physiological conditions. May play a role in nitrogen metabolism and synaptic transmission.
Pfam Domain Function
Transmembrane Regions83-103 106-126 144-164 187-207 213-233 324-344 366-386 408-428 431-451 471-491
GenBank Protein ID10242111
UniProtKB IDQ99624
UniProtKB Entry NameS38A3_HUMAN
Cellular LocationCell membrane
Gene sequence
>lcl|BSEQ0010235|Sodium-coupled neutral amino acid transporter 3 (SLC38A3)
ATGGAGGCGCCTTTGCAGACAGAGATGGTGGAGCTGGTGCCCAATGGCAAACACTCAGAG
GGGCTGCTCCCGGTCATCACCCCCATGGCAGGCAACCAGAGGGTCGAGGACCCTGCACGG
AGCTGTATGGAGGGCAAGAGCTTCCTACAGAAAAGTCCCAGCAAGGAGCCACACTTCACT
GACTTCGAGGGGAAGACATCATTCGGGATGTCAGTGTTCAACCTCAGCAATGCCATCATG
GGCAGCGGCATCCTGGGACTCGCCTATGCCATGGCCAATACGGGCATTATCCTTTTCCTG
TTCCTGTTGACAGCTGTCGCCTTGCTCTCCAGCTACTCCATCCACCTGCTACTCAAGTCC
TCAGGGGTCGTGGGCATCCGTGCCTATGAGCAGCTGGGCTACCGTGCCTTTGGGACCCCA
GGAAAGCTGGCAGCAGCCCTGGCCATCACGCTCCAGAACATCGGAGCCATGTCCAGCTAC
CTGTACATCATCAAGTCTGAGCTGCCACTTGTCATACAGACCTTCCTGAACCTGGAGGAG
AAAACCTCGGACTGGTACATGAACGGGAACTACCTGGTAATCCTTGTCTCTGTCACCATC
ATTCTGCCCCTGGCACTGATGCGGCAGCTTGGCTACCTGGGCTACTCCAGCGGCTTCTCT
CTTAGCTGCATGGTGTTCTTCCTAATTGCAGTCATCTACAAAAAGTTCCACGTGCCCTGC
CCACTGCCCCCCAACTTCAACAACACCACAGGCAACTTCAGCCACGTGGAGATCGTGAAG
GAGAAGGTGCAGCTGCAGGTCGAGCCTGAGGCTTCAGCCTTCTGCACTCCCAGCTACTTC
ACGCTCAACTCACAGACAGCATACACCATCCCCATCATGGCCTTCGCCTTCGTCTGCCAC
CCCGAGGTGCTGCCCATCTATACTGAGCTCAAGGACCCCTCCAAGAAGAAGATGCAGCAC
ATCTCCAACCTGTCCATCGCTGTCATGTACATCATGTACTTCCTGGCTGCCCTCTTCGGC
TACCTCACCTTCTACAACGGGGTGGAGTCGGAGCTGCTGCACACCTACAGCAAGGTGGAC
CCGTTTGACGTCCTGATCCTGTGTGTGCGCGTGGCCGTGCTGACAGCAGTCACGCTCACA
GTGCCCATCGTTCTGTTCCCGGTGCGCCGCGCCATCCAGCAGATGCTGTTTCCAAACCAG
GAGTTCAGCTGGCTGCGGCATGTGCTTATTGCCGTTGGCCTGCTCACTTGTATCAACCTG
CTGGTCATCTTTGCCCCCAACATCCTGGGCATCTTTGGGGTCATCGGTGCCACATCTGCC
CCATTCCTCATCTTCATCTTCCCTGCCATCTTCTACTTCCGAATCATGCCCACGGAGAAG
GAGCCTGCAAGATCCACCCCCAAAATCCTGGCCCTGTGTTTTGCTATGCTTGGCTTCTTG
CTGATGACCATGAGCTTGAGCTTCATCATCATTGACTGGGCCTCAGGGACCAGCCGGCAT
GGAGGAAACCACTAG
GenBank Gene IDAF244548
GeneCard IDNot Available
GenAtlas IDSLC38A3
HGNC IDHGNC:18044
Chromosome Location3
Locus3p21.3
References
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