Expasy logo

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot Q16832: Variant p.Arg752Cys

Discoidin domain-containing receptor 2
Gene: DDR2
Feedback?
Variant information Variant position: help 752 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 Cysteine (C) at position 752 (R752C, p.Arg752Cys). 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 large size and basic (R) to medium size and polar (C) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help -3 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 SEMD-SL; causes retention in an intracellular compartment and thereby abolishes signaling in response collagen binding. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 752 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 855 The length of the canonical sequence.
Location on the sequence: help SRNLYSGDYYRIQGRAVLPI R WMSWESILLGKFTTASDVWA 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                         SRNLYSGDYYRIQGRAVLPIRWMSWESILLGKFTTASDVWA

Mouse                         SRNLYSGDYYRIQGRAVLPIRWMSWESILLGKFTTASDVWA

Baker's yeast                 -----------------------------------------
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 22 – 855 Discoidin domain-containing receptor 2
Topological domain 422 – 855 Cytoplasmic
Domain 563 – 849 Protein kinase
Modified residue 736 – 736 Phosphotyrosine; by SRC and autocatalysis
Modified residue 740 – 740 Phosphotyrosine; by SRC and autocatalysis
Modified residue 741 – 741 Phosphotyrosine; by SRC and autocatalysis
Mutagenesis 736 – 736 Y -> F. Reduces autophosphorylation. Abolishes phosphorylation by SRC; when associated with F-740 and F-741.
Mutagenesis 740 – 740 Y -> F. Promotes autophosphorylation. Abolishes phosphorylation by SRC; when associated with F-736 and F-741.
Mutagenesis 741 – 741 Y -> F. Reduces autophosphorylation. Abolishes phosphorylation by SRC; when associated with F-736 and F-740.
Turn 751 – 753



Literature citations
Mutations in DDR2 gene cause SMED with short limbs and abnormal calcifications.
Bargal R.; Cormier-Daire V.; Ben-Neriah Z.; Le Merrer M.; Sosna J.; Melki J.; Zangen D.H.; Smithson S.F.; Borochowitz Z.; Belostotsky R.; Raas-Rothschild A.;
Am. J. Hum. Genet. 84:80-84(2009)
Cited for: VARIANTS SEMD-SL ILE-713; ARG-726 AND CYS-752; Trafficking defects and loss of ligand binding are the underlying causes of all reported DDR2 missense mutations found in SMED-SL patients.
Ali B.R.; Xu H.; Akawi N.A.; John A.; Karuvantevida N.S.; Langer R.; Al-Gazali L.; Leitinger B.;
Hum. Mol. Genet. 19:2239-2250(2010)
Cited for: VARIANT SEMD-SL LYS-113; CHARACTERIZATION OF VARIANTS SEMD-SL LYS-113; ILE-713; ARG-726 AND CYS-752; MUTAGENESIS OF TRP-52; GLYCOSYLATION; 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.