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UniProtKB/Swiss-Prot P49682: Variant p.Arg292Gln

C-X-C chemokine receptor type 3
Gene: CXCR3
Variant information

Variant position:  292
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Type of variant:  LB/B
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:  From Arginine (R) to Glutamine (Q) at position 292 (R292Q, p.Arg292Gln).
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:  Change from large size and basic (R) to medium size and polar (Q)
The physico-chemical property of the reference and variant residues and the change implicated.

BLOSUM score:  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

Other resources:  
Links to websites of interest for the variant.



Sequence information

Variant position:  292
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  368
The length of the canonical sequence.

Location on the sequence:   HLVVLVDILMDLGALARNCG  R ESRVDVAKSVTSGLGYMHCC
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                         HLVVLVDILMDLGALARNCGRESRVDVAKSVTSGLGYMHCC

                              HLVVLVDTLMDLGALDRNCGRESRVDVAKSVTSGLGYMHCC

Mouse                         HLVVLVDILMDVGVLARNCGRESHVDVAKSVTSGMGYMHCC

Rat                           HLVVLVDILMDVGVLARNCGRESHVDVAKSVTSGMGYMHCC

Bovine                        HLVVLVDTLMDLGALARNCGRESSVDIAKSVTSGMGYMHCC

Goat                          HLVVLVDTLMDLGALARNCGRESRVDVAKSVTSGMGYMHCC

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 – 368 C-X-C chemokine receptor type 3
Topological domain 278 – 298 Extracellular
Alternative sequence 210 – 368 VGRTALRVLQLVAGFLLPLLVMAYCYAHILAVLLVSRGQRRLRAMRLVVVVVVAFALCWTPYHLVVLVDILMDLGALARNCGRESRVDVAKSVTSGLGYMHCCLNPLLYAFVGVKFRERMWMLLLRLGCPNQRGLQRQPSSSRRDSSWSETSEASYSGL -> GSSSGSGCGCCSCAWAAPTREGSRGSHRLPAGIHPGLRPQRPPTRACEAGIRAPLSPI. In isoform 3.
Mutagenesis 278 – 278 D -> A. Abolishes binding to CXCL10 and CXCL11 and CXCL11-induced chemotaxis. Reduces CXCL9 and CXCL10-induced chemotaxis.
Mutagenesis 278 – 278 D -> K. Abolishes binding to CXCL10 and CXCL11 and CXCL9-, CXCL10- and CXCL11-induced chemotaxis.
Mutagenesis 282 – 282 D -> A. Reduces binding to CXCL10 and CXCL9-, CXCL10- and CXCL11-induced chemotaxis. Abolishes binding to CXCL11.
Mutagenesis 282 – 282 D -> K. Reduces binding to CXCL10 and CXCL11 and CXCL9-, CXCL10- and CXCL11-induced chemotaxis.
Mutagenesis 293 – 293 E -> A. Reduces binding to CXCL10 and CXCL9- and CXCL11-induced chemotaxis. Abolishes binding to CXCL11 and CXCL10-induced chemotaxis.
Mutagenesis 293 – 293 E -> K. Abolishes binding to CXCL10 and CXCL11 and CXCL9-, CXCL10- and CXCL11-induced chemotaxis.


Literature citations

Single nucleotide polymorphisms in the coding regions of human CXC-chemokine receptors CXCR1, CXCR2 and CXCR3.
Kato H.; Tsuchiya N.; Tokunaga K.;
Genes Immun. 1:330-337(2000)
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 278-368; VARIANTS GLN-292 AND THR-363;

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.