Expasy logo

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P41180: Variant p.Asn118Lys

Extracellular calcium-sensing receptor
Gene: CASR
Feedback?
Variant information Variant position: help 118 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 Asparagine (N) to Lysine (K) at position 118 (N118K, p.Asn118Lys). 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 (N) to large size and basic (K) 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 HYPOC1; the mutation shifts the concentration-response curve to the left and increases maximal activity. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 118 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 FDTCNTVSKALEATLSFVAQ N KIDSLNLDEFCNCSEHIPST 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                         FDTCNTVSKALEATLSFVAQNKIDSLNLDEFCNCSEHIPST

Mouse                         FDTCNTVSKALEATLSFVAQNKIDSLNLDEFCNCSEHIPST

Rat                           FDTCNTVSKALEATLSFVAQNKIDSLNLDEFCNCSEHIPST

Pig                           FDTCNTVSKALEATLSFVAQNKIDSLNLDEFCNCSEHIPST

Bovine                        FDTCNTVSKALEATLSFVAQNKIDSLNLDEFCNCSEHIPST
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
Region 22 – 188 Ligand-binding 1 (LB1)
Binding site 100 – 100
Glycosylation 130 – 130 N-linked (GlcNAc...) asparagine
Disulfide bond 129 – 129 Interchain
Disulfide bond 131 – 131 Interchain
Mutagenesis 102 – 102 N -> I. Abolishes G-protein coupled receptor activity.
Helix 116 – 123



Literature citations
A familial syndrome of hypocalcemia with hypercalciuria due to mutations in the calcium-sensing receptor.
Pearce S.H.S.; Williamson C.; Kifor O.; Bai M.; Coulthard M.G.; Davies M.; Lewis-Barned N.; McCredie D.; Powell H.; Kendall-Taylor P.; Brown E.M.; Thakker R.V.;
N. Engl. J. Med. 335:1115-1122(1996)
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]; VARIANTS HYPOC1 LYS-118; LEU-128; MET-151; LYS-191 AND SER-612; CHARACTERIZATION OF VARIANTS HYPOC1 LEU-128; MET-151 AND LYS-191; Sporadic hypoparathyroidism caused by de Novo gain-of-function mutations of the Ca(2+)-sensing receptor.
De Luca F.; Ray K.; Mancilla E.E.; Fan G.-F.; Winer K.K.; Gore P.; Spiegel A.M.; Baron J.;
J. Clin. Endocrinol. Metab. 82:2710-2715(1997)
Cited for: VARIANTS HYPOC1 LYS-118; ARG-773 AND SER-806; CHARACTERIZATION OF VARIANTS HYPOC1 LYS-118; ARG-773 AND SER-806; Calcium-sensing receptor mutations and denaturing high performance liquid chromatography.
Cole D.E.; Yun F.H.; Wong B.Y.; Shuen A.Y.; Booth R.A.; Scillitani A.; Pidasheva S.; Zhou X.; Canaff L.; Hendy G.N.;
J. Mol. Endocrinol. 42:331-339(2009)
Cited for: VARIANTS HHC1 SER-42; LEU-55; HIS-66; MET-81; MET-138; ARG-143; ARG-158; GLY-166; TRP-220; ARG-549; TYR-562; GLY-565; TYR-582; 583-ASN--SER-1078 DEL; TYR-661; HIS-680; ILE-761 DEL AND TRP-795; VARIANTS HYPOC1 LYS-118; PHE-125; ARG-129; LYS-228; LYS-604; ILE-802; SER-830; LEU-832 AND SER-832;
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.