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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot Q9HBA0: Variant p.Arg775Lys

Transient receptor potential cation channel subfamily V member 4
Gene: TRPV4
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Variant information Variant position: help 775 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 Arginine (R) to Lysine (K) at position 775 (R775K, p.Arg775Lys). 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 Similar physico-chemical property. Both residues are large size and basic. The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help 2 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 MTD. Any additional useful information about the variant.


Sequence information Variant position: help 775 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 871 The length of the canonical sequence.
Location on the sequence: help AFRSGEMVTVGKSSDGTPDR R WCFRVDEVNWSHWNQNLGII 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                         AFRSGEMVTVGKSSDGTPDRRWCFRVDEVNWSHWNQNLGII

Mouse                         AFRSGEMVTVGKSSDGTPDRRWCFRVDEVNWSHWNQNLGII

Rat                           AFRSGEMVTVGKSSDGTPDRRWCFRVDEVNWSHWNQNLGII

Chicken                       VFRSGEMVTVGKGTDGTPDRRWCFRVDEVNWSHWNQNLGII

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 – 871 Transient receptor potential cation channel subfamily V member 4
Topological domain 723 – 871 Cytoplasmic



Literature citations
Novel and recurrent TRPV4 mutations and their association with distinct phenotypes within the TRPV4 dysplasia family.
Dai J.; Kim O.H.; Cho T.J.; Schmidt-Rimpler M.; Tonoki H.; Takikawa K.; Haga N.; Miyoshi K.; Kitoh H.; Yoo W.J.; Choi I.H.; Song H.R.; Jin D.K.; Kim H.T.; Kamasaki H.; Bianchi P.; Grigelioniene G.; Nampoothiri S.; Minagawa M.; Miyagawa S.I.; Fukao T.; Marcelis C.; Jansweijer M.C.; Hennekam R.C.; Bedeschi F.; Mustonen A.; Jiang Q.; Ohashi H.; Furuichi T.; Unger S.; Zabel B.; Lausch E.; Superti-Furga A.; Nishimura G.; Ikegawa S.;
J. Med. Genet. 47:704-709(2010)
Cited for: VARIANTS MTD PHE-199; ALA-295; THR-331; PHE-342; PHE-471 DEL; LEU-592; LYS-775; ALA-799; SER-799; LEU-799 AND ARG-799; VARIANTS SMDK LYS-278; HIS-594; PRO-596; TRP-600; ILE-625; MET-709; TYR-777 AND LYS-797;
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.