To improve security and privacy, we are moving our web pages and services from HTTP to HTTPS.
To give users of web services time to transition to HTTPS, we will support separate HTTP and HTTPS services until the end of 2017.
From January 2018 most HTTP traffic will be automatically redirected to HTTPS. [more...]
View this page in https

UniProtKB/Swiss-Prot Q9HBA0: Variant p.Arg775Lys

Transient receptor potential cation channel subfamily V member 4
Gene: TRPV4
Chromosomal location: 12q24.1
Variant information

Variant position:  775
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Type of variant:  Disease [Disclaimer]
The variants are classified into three categories: Disease, Polymorphism and Unclassified.
  • Disease: Variants implicated in disease according to literature reports.
  • Polymorphism: Variants not reported to be implicated in disease.
  • Unclassified: Variants with uncertain implication in disease according to literature reports. Evidence against or in favor of a pathogenic role is limited and/or conflicting.

Residue change:  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:  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:  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

Involvement in disease:  Metatropic dysplasia (MTD) [MIM:156530]: A severe spondyloepimetaphyseal dysplasia characterized by short limbs with limitation and enlargement of joints and usually severe kyphoscoliosis. Radiologic features include severe platyspondyly, severe metaphyseal enlargement and shortening of long bones. {ECO:0000269|PubMed:19232556, ECO:0000269|PubMed:20425821, ECO:0000269|PubMed:20577006, ECO:0000269|PubMed:26249260, ECO:0000269|Ref.6}. Note=The disease is caused by mutations affecting the gene represented in this entry.
The name and a short description of the disease associated with the variant. For more information about the disease, the user can refer to OMIM, following the link provided after the disease acronym.

Variant description:  In MTD.
Any additional useful information about the variant.



Sequence information

Variant position:  775
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  871
The length of the canonical sequence.

Location on the sequence:   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: 
The multiple alignment of the region surrounding the variant against various orthologous sequences.

Human                         AFRSGEMVTVGKSSDGTPDRRWCFRVDEVNWSHWNQNLGII

Mouse                         AFRSGEMVTVGKSSDGTPDRRWCFRVDEVNWSHWNQNLGII

Rat                           AFRSGEMVTVGKSSDGTPDRRWCFRVDEVNWSHWNQNLGII

Sequence annotation in neighborhood:  
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 712 – 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.