Hmdb loader
Identification
HMDB Protein ID HMDBP02043
Secondary Accession Numbers
  • 7522
Name Sodium/nucleoside cotransporter 2
Synonyms
  1. CNT 2
  2. Concentrative nucleoside transporter 2
  3. Na(+)/nucleoside cotransporter 2
  4. SPNT
  5. Sodium-coupled nucleoside transporter 2
  6. Sodium/purine nucleoside co-transporter
  7. Solute carrier family 28 member 2
  8. hCNT2
Gene Name SLC28A2
Protein Type Unknown
Biological Properties
General Function Involved in nucleoside:sodium symporter activity
Specific Function Sodium-dependent and purine-selective transporter. Exhibits the transport characteristics of the nucleoside transport system cif or N1 subtype (N1/cif) (selective for purine nucleosides and uridine). Plays a critical role in specific uptake and salvage of purine nucleosides in kidney and other tissues.
Pathways
  • Azathioprine Action Pathway
  • Mercaptopurine Action Pathway
  • Mercaptopurine Metabolism Pathway
  • Thioguanine Action Pathway
Reactions Not Available
GO Classification
Biological Process
nucleobase-containing compound metabolic process
Cellular Component
integral to plasma membrane
Component
membrane
cell part
Function
binding
nucleoside binding
transmembrane transporter activity
substrate-specific transmembrane transporter activity
nucleobase, nucleoside, nucleotide and nucleic acid transmembrane transporter activity
nucleoside transmembrane transporter activity
nucleoside:sodium symporter activity
transporter activity
Molecular Function
nucleoside binding
nucleoside:sodium symporter activity
purine nucleoside transmembrane transporter activity
Process
establishment of localization
transport
Cellular Location
  1. Membrane
  2. Multi-pass membrane protein
Gene Properties
Chromosome Location 15
Locus 15q15
SNPs SLC28A2
Gene Sequence
>1977 bp
ATGGAGAAAGCAAGTGGAAGACAGTCCATTGCTCTGTCCACAGTGGAGACTGGCACAGTG
AACCCGGGGCTGGAGCTCATGGAAAAAGAAGTAGAGCCTGAGGGAAGCAAGAGGACTGAC
GCACAAGGACACAGCCTGGGGGATGGACTGGGCCCTTCCACTTACCAGAGGAGGAGTCGG
TGGCCTTTCAGCAAAGCAAGAAGTTTCTGCAAAACACACGCCAGCTTGTTCAAGAAGATC
CTGTTGGGCCTGTTGTGTTTGGCCTATGCTGCCTATCTCCTGGCAGCTTGCATCTTGAAT
TTCCAGAGGGCACTGGCCTTGTTTGTCATCACCTGCTTGGTGATCTTTGTCCTGGTTCAC
TCGTTTTTGAAAAAGCTCCTGGGCAAAAAATTAACAAGATGTCTGAAGCCCTTTGAAAAC
TCCCGCCTGAGGCTTTGGACGAAATGGGTGTTTGCAGGAGTCTCCTTGGTTGGCCTTATA
CTGTGGTTGGCTTTAGACACAGCCCAAAGGCCAGAGCAGCTGATCCCCTTTGCAGGAATC
TGCATGTTCATCCTTATCCTCTTTGCCTGCTCCAAACACCACAGCGCAGTGTCCTGGAGG
ACAGTGTTTTCGGGCCTAGGTCTTCAATTTGTCTTTGGGATCTTGGTCATCAGAACTGAT
CTTGGATATACTGTATTTCAGTGGCTGGGAGAGCAGGTCCAGATTTTCCTGAACTACACT
GTGGCCGGCTCCAGTTTTGTCTTTGGGGATACACTGGTCAAGGATGTCTTTGCTTTTCAG
GCCTTACCAATCATCATTTTCTTTGGATGTGTGGTGTCCATTCTCTACTACCTGGGCCTT
GTGCAATGGGTAGTTCAGAAGGTCGCCTGGTTTTTACAAATCACTATGGGCACCACTGCT
ACAGAGACCCTGGCTGTGGCAGGAAACATCTTTGTGGGTATGACAGAGGCACCTCTGCTC
ATCCGTCCCTACCTTGGGGACATGACACTCTCTGAAATCCATGCGGTGATGACTGGAGGG
TTTGCCACCATTTCTGGCACTGTGCTGGGAGCCTTCATAGCCTTTGGGGTTGATGCATCA
TCCCTGATTTCTGCCTCTGTGATGGCCGCCCCTTGTGCTCTCGCCTCATCAAAGCTAGCG
TATCCGGAAGTGGAGGAGTCCAAGTTCAAGAGTGAGGAGGGGGTAAAGCTGCCCCGTGGG
AAGGAGAGGAATGTCCTGGAAGCTGCCAGCAACGGAGCCGTAGATGCCATAGGCCTTGCT
ACTAATGTAGCAGCCAACCTGATTGCCTTTTTGGCTGTGTTGGCCTTCATCAATGCTGCC
CTCTCCTGGCTGGGGGAATTGGTGGACATACAGGGGCTCACTTTCCAGGTCATCTGCTCC
TATCTCCTAAGGCCCATGGTTTTCATGATGGGTGTAGAATGGACAGACTGTCCAATGGTG
GCTGAGATGGTGGGAATCAAGTTCTTCATAAATGAATTTGTTGCTTATCAGCAACTGTCT
CAATACAAGAACAAACGTCTCTCTGGAATGGAGGAGTGGATTGAGGGAGAGAAACAGTGG
ATTTCTGTGAGAGCTGAAATCATTACAACATTTTCACTCTGTGGATTTGCCAATCTTAGT
TCCATAGGAATCACACTTGGAGGCTTGACATCAATAGTACCTCACCGGAAGAGTGACTTG
TCCAAGGTTGTGGTCAGGGCCCTCTTCACAGGGGCCTGTGTATCCCTTATCAGTGCCTGT
ATGGCAGGAATCCTCTATGTCCCCAGGGGAGCTGAAGCTGACTGTGTCTCCTTCCCAAAC
ACAAGTTTCACCAATAGAACCTATGAGACCTACATGTGCTGCAGAGGGCTCTTTCAGAGT
ACTTCTCTGAATGGCACCAACCCTCCTTCTTTTTCTGGTCCCTGGGAAGATAAGGAGTTC
AGTGCTATGGCCCTTACTAACTGCTGTGGATTCTACAACAATACCGTCTGTGCCTGA
Protein Properties
Number of Residues 658
Molecular Weight 71925.565
Theoretical pI 7.949
Pfam Domain Function
Signals Not Available
Transmembrane Regions Not Available
Protein Sequence
>Sodium/nucleoside cotransporter 2
MEKASGRQSIALSTVETGTVNPGLELMEKEVEPEGSKRTDAQGHSLGDGLGPSTYQRRSR
WPFSKARSFCKTHASLFKKILLGLLCLAYAAYLLAACILNFQRALALFVITCLVIFVLVH
SFLKKLLGKKLTRCLKPFENSRLRLWTKWVFAGVSLVGLILWLALDTAQRPEQLIPFAGI
CMFILILFACSKHHSAVSWRTVFSGLGLQFVFGILVIRTDLGYTVFQWLGEQVQIFLNYT
VAGSSFVFGDTLVKDVFAFQALPIIIFFGCVVSILYYLGLVQWVVQKVAWFLQITMGTTA
TETLAVAGNIFVGMTEAPLLIRPYLGDMTLSEIHAVMTGGFATISGTVLGAFIAFGVDAS
SLISASVMAAPCALASSKLAYPEVEESKFKSEEGVKLPRGKERNVLEAASNGAVDAIGLA
TNVAANLIAFLAVLAFINAALSWLGELVDIQGLTFQVICSYLLRPMVFMMGVEWTDCPMV
AEMVGIKFFINEFVAYQQLSQYKNKRLSGMEEWIEGEKQWISVRAEIITTFSLCGFANLS
SIGITLGGLTSIVPHRKSDLSKVVVRALFTGACVSLISACMAGILYVPRGAEADCVSFPN
TSFTNRTYETYMCCRGLFQSTSLNGTNPPSFSGPWEDKEFSAMALTNCCGFYNNTVCA
GenBank ID Protein 2665908
UniProtKB/Swiss-Prot ID O43868
UniProtKB/Swiss-Prot Entry Name S28A2_HUMAN
PDB IDs Not Available
GenBank Gene ID AF036109
GeneCard ID SLC28A2
GenAtlas ID SLC28A2
HGNC ID HGNC:11002
References
General References
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  2. Gerhard DS, Wagner L, Feingold EA, Shenmen CM, Grouse LH, Schuler G, Klein SL, Old S, Rasooly R, Good P, Guyer M, Peck AM, Derge JG, Lipman D, Collins FS, Jang W, Sherry S, Feolo M, Misquitta L, Lee E, Rotmistrovsky K, Greenhut SF, Schaefer CF, Buetow K, Bonner TI, Haussler D, Kent J, Kiekhaus M, Furey T, Brent M, Prange C, Schreiber K, Shapiro N, Bhat NK, Hopkins RF, Hsie F, Driscoll T, Soares MB, Casavant TL, Scheetz TE, Brown-stein MJ, Usdin TB, Toshiyuki S, Carninci P, Piao Y, Dudekula DB, Ko MS, Kawakami K, Suzuki Y, Sugano S, Gruber CE, Smith MR, Simmons B, Moore T, Waterman R, Johnson SL, Ruan Y, Wei CL, Mathavan S, Gunaratne PH, Wu J, Garcia AM, Hulyk SW, Fuh E, Yuan Y, Sneed A, Kowis C, Hodgson A, Muzny DM, McPherson J, Gibbs RA, Fahey J, Helton E, Ketteman M, Madan A, Rodrigues S, Sanchez A, Whiting M, Madari A, Young AC, Wetherby KD, Granite SJ, Kwong PN, Brinkley CP, Pearson RL, Bouffard GG, Blakesly RW, Green ED, Dickson MC, Rodriguez AC, Grimwood J, Schmutz J, Myers RM, Butterfield YS, Griffith M, Griffith OL, Krzywinski MI, Liao N, Morin R, Palmquist D, Petrescu AS, Skalska U, Smailus DE, Stott JM, Schnerch A, Schein JE, Jones SJ, Holt RA, Baross A, Marra MA, Clifton S, Makowski KA, Bosak S, Malek J: The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC). Genome Res. 2004 Oct;14(10B):2121-7. [PubMed:15489334 ]
  3. Loewen SK, Ng AM, Yao SY, Cass CE, Baldwin SA, Young JD: Identification of amino acid residues responsible for the pyrimidine and purine nucleoside specificities of human concentrative Na(+) nucleoside cotransporters hCNT1 and hCNT2. J Biol Chem. 1999 Aug 27;274(35):24475-84. [PubMed:10455109 ]
  4. Wang J, Su SF, Dresser MJ, Schaner ME, Washington CB, Giacomini KM: Na(+)-dependent purine nucleoside transporter from human kidney: cloning and functional characterization. Am J Physiol. 1997 Dec;273(6 Pt 2):F1058-65. [PubMed:9435697 ]
  5. Ritzel MW, Yao SY, Ng AM, Mackey JR, Cass CE, Young JD: Molecular cloning, functional expression and chromosomal localization of a cDNA encoding a human Na+/nucleoside cotransporter (hCNT2) selective for purine nucleosides and uridine. Mol Membr Biol. 1998 Oct-Dec;15(4):203-11. [PubMed:10087507 ]
  6. Owen RP, Gray JH, Taylor TR, Carlson EJ, Huang CC, Kawamoto M, Johns SJ, Stryke D, Ferrin TE, Giacomini KM: Genetic analysis and functional characterization of polymorphisms in the human concentrative nucleoside transporter, CNT2. Pharmacogenet Genomics. 2005 Feb;15(2):83-90. [PubMed:15861032 ]
  7. Li L, Tan CM, Koo SH, Chong KT, Lee EJ: Identification and functional analysis of variants in the human concentrative nucleoside transporter 2, hCNT2 (SLC28A2) in Chinese, Malays and Indians. Pharmacogenet Genomics. 2007 Sep;17(9):783-6. [PubMed:17700367 ]