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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P55017: Variant p.Gly439Ser

Solute carrier family 12 member 3
Gene: SLC12A3
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Variant information Variant position: help 439 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help LP/P [Disclaimer] The variants are classified into three categories: LP/P, LB/B and US.
  • LP/P: likely pathogenic or pathogenic.
  • LB/B: likely benign or benign.
  • US: uncertain significance
Residue change: help From Glycine (G) to Serine (S) at position 439 (G439S, p.Gly439Ser). Indicates the amino acid change of the variant. The one-letter and three-letter codes for amino acids used in UniProtKB/Swiss-Prot are those adopted by the commission on Biochemical Nomenclature of the IUPAC-IUB.
Physico-chemical properties: help Change from glycine (G) to small size and polar (S) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help 0 The score within a Blosum matrix for the corresponding wild-type to variant amino acid change. The log-odds score measures the logarithm for the ratio of the likelihood of two amino acids appearing by chance. The Blosum62 substitution matrix is used. This substitution matrix contains scores for all possible exchanges of one amino acid with another:
  • Lowest score: -4 (low probability of substitution).
  • Highest score: 11 (high probability of substitution).
More information can be found on the following page
Variant description: help In GTLMNS; does not affect MAPK1/3 (ERK1/2) phosphorylation in response to IL18. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 439 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 1021 The length of the canonical sequence.
Location on the sequence: help LACSYGWNFTECTQQHSCHY G LINYYQTMSMVSGFAPLITA The residue change on the sequence. Unless the variant is located at the beginning or at the end of the protein sequence, both residues upstream (20) and downstream (20) of the variant will be shown.
Residue conservation: help The multiple alignment of the region surrounding the variant against various orthologous sequences. 
Human                         LACSYGWNFTECTQQHSCHYGLINYYQTMSMVSGFAPLITA

Mouse                         LACGYGWNFTECSQQRSCRYGLINYYQTMSMVSAFAPLITA

Rat                           LACGYGWNFTECSQQHSCRYGLINYYQTMSMVSAFAPLITA
Sequence annotation in neighborhood: help The regions or sites of interest surrounding the variant. In general the features listed are posttranslational modifications, binding sites, enzyme active sites, local secondary structure or other characteristics reported in the cited references. The "Sequence annotation in neighborhood" lines have a fixed format:
  • Type: the type of sequence feature.
  • Positions: endpoints of the sequence feature.
  • Description: contains additional information about the feature.
TypePositionsDescription
Chain 1 – 1021 Solute carrier family 12 member 3
Topological domain 397 – 453 Extracellular
Glycosylation 426 – 426 N-linked (GlcNAc...) asparagine



Literature citations
Interleukin 18 function in atherosclerosis is mediated by the interleukin 18 receptor and the Na-Cl co-transporter.
Wang J.; Sun C.; Gerdes N.; Liu C.; Liao M.; Liu J.; Shi M.A.; He A.; Zhou Y.; Sukhova G.K.; Chen H.; Cheng X.W.; Kuzuya M.; Murohara T.; Zhang J.; Cheng X.; Jiang M.; Shull G.E.; Rogers S.; Yang C.L.; Ke Q.; Jelen S.; Bindels R.; Ellison D.H.; Jarolim P.; Libby P.; Shi G.P.;
Nat. Med. 21:820-826(2015)
Cited for: TISSUE SPECIFICITY; CHARACTERIZATION OF VARIANTS GTLMNS ASP-121; SER-439; CYS-475 AND ARG-1021; Novel molecular variants of the Na-Cl cotransporter gene are responsible for Gitelman syndrome.
Mastroianni N.; Bettinelli A.; Bianchetti M.; Colussi G.; De Fusco M.; Sereni F.; Ballabio A.; Casari G.;
Am. J. Hum. Genet. 59:1019-1026(1996)
Cited for: VARIANTS GTLMNS ASN-62; ASP-186; TRP-209; LEU-349; SER-439; GLU-478; ASN-486; CYS-496; PRO-542; VAL-588 AND ARG-731; Genetic variants of thiazide-sensitive NaCl-cotransporter in Gitelman's syndrome and primary hypertension.
Melander O.; Orho-Melander M.; Bengtsson K.; Lindblad U.; Rastam L.; Groop L.; Hulthen U.L.;
Hypertension 36:389-394(2000)
Cited for: VARIANTS GTLMNS PRO-304; SER-439; ARG-731 AND ARG-741; VARIANT GLN-904; Novel NCC mutants and functional analysis in a new cohort of patients with Gitelman syndrome.
Glaudemans B.; Yntema H.G.; San-Cristobal P.; Schoots J.; Pfundt R.; Kamsteeg E.J.; Bindels R.J.; Knoers N.V.; Hoenderop J.G.; Hoefsloot L.H.;
Eur. J. Hum. Genet. 20:263-270(2012)
Cited for: VARIANTS GTLMNS MET-60; HIS-62; GLN-83; TRP-83; ASP-121; CYS-135; CYS-145; MET-150; MET-153; PRO-157; LEU-158; MET-163; VAL-166; ARG-172; LEU-178; THR-192; ILE-194; GLN-209; ARG-235; ASN-259; PRO-272; MET-304; PRO-304; VAL-313; TRP-321; TRP-334; GLU-374; MET-382; ILE-392; CYS-399; 433-GLN--CYS-436 DELINS LEU; SER-439; SER-442; ARG-463; THR-464; CYS-475; HIS-489; CYS-507; THR-523; SER-534; LEU-536; GLY-546; LEU-555; ARG-560; ASN-566 DEL; LEU-615; CYS-642; CYS-642; GLY-642; HIS-642; LEU-643; MET-647; HIS-655; LYS-ALA-PHE-TYR-SER-ASP-VAL-ILE-713 INS; VAL-729; ARG-735; ARG-741; LEU-751; THR-824; ASN-839; PHE-849; PRO-850; CYS-852; CYS-862; THR-872; GLN-887; TRP-934; TRP-935; GLN-955; GLY-958; ARG-980; TYR-985; GLN-1009 AND ARG-1021; CHARACTERIZATION OF VARIANT GTLMNS ASP-121; ILE-392; SER-442; CYS-475; HIS-489; LEU-751 AND ARG-1021; FUNCTION; SUBCELLULAR LOCATION;
Disclaimer: Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. They are not in any way intended to be used as a substitute for professional medical advice, diagnostic, treatment or care.