Expasy logo

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P41180: Variant p.Gln459Arg

Extracellular calcium-sensing receptor
Gene: CASR
Feedback?
Variant information Variant position: help 459 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 Glutamine (Q) to Arginine (R) at position 459 (Q459R, p.Gln459Arg). 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 medium size and polar (Q) to large size and basic (R) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help 1 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 HHC1; decreased G-protein coupled receptor signaling pathway; does not affect cell membrane localization. Any additional useful information about the variant.


Sequence information Variant position: help 459 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 1078 The length of the canonical sequence.
Location on the sequence: help PGRGLFTNGSCADIKKVEAW Q VLKHLRHLNFTNNMGEQVTF 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                         PGRGLFTNGSCADIKKVEAWQVLKHLRHLNFTNNMGEQVTF

Mouse                         PGRGLFTNGSCADIKKVEAWQVLKHLRHLNFTNNMGEQVTF

Rat                           PGRGLFTNGSCADIKKVEAWQVLKHLRHLNFTNNMGEQVTF

Pig                           PGRGLFTNGSCADIKKVEAWQVLKHLRHLNFTSNMGEQVTF

Bovine                        PGRGLFTNGSCADIKKVEAWQVLKHLRHLNFTSNMGEQVTF
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 20 – 1078 Extracellular calcium-sensing receptor
Topological domain 20 – 612 Extracellular
Glycosylation 446 – 446 N-linked (GlcNAc...) asparagine
Glycosylation 468 – 468 N-linked (GlcNAc...) asparagine
Disulfide bond 236 – 561
Mutagenesis 458 – 458 W -> A. Decreased G-protein coupled receptor signaling pathway.
Helix 457 – 465



Literature citations
A novel loss-of-function mutation, Gln459Arg, of the calcium-sensing receptor gene associated with apparent autosomal recessive inheritance of familial hypocalciuric hypercalcemia.
Lietman S.A.; Tenenbaum-Rakover Y.; Jap T.S.; Yi-Chi W.; De-Ming Y.; Ding C.; Kussiny N.; Levine M.A.;
J. Clin. Endocrinol. Metab. 94:4372-4379(2009)
Cited for: VARIANT HHC1 ARG-459; VARIANTS SER-986 AND GLN-1011; FUNCTION; CHARACTERIZATION OF VARIANT HHC1 ARG-459;
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.