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UniProtKB/Swiss-Prot P43246: Variant p.Arg524Pro

DNA mismatch repair protein Msh2
Gene: MSH2
Variant information

Variant position:  524
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 Proline (P) at position 524 (R524P, p.Arg524Pro).
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 hydrophobic (P)
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

Variant description:  In HNPCC1; decreased mismatch repair activity.
Any additional useful information about the variant.

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



Sequence information

Variant position:  524
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  934
The length of the canonical sequence.

Location on the sequence:   GLDPGKQIKLDSSAQFGYYF  R VTCKEEKVLRNNKNFSTVDI
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                         GLDPGKQIKLDSSAQFGYYFRVTCKEEKVLR-NNKNFSTVDI

Mouse                         GLDPGKQIKLDSSAQFGYYFRVTCKEEKVLR-NNKNFSTVD

Rat                           GLDPGKQIKLDSSAQFGYYFRVTCKEEKVLR-NNKNFSTVD

Bovine                        GLDPGKQIKLDSSTQFGYYFRVTCKEEKVLR-NNKNFSTVD

Drosophila                    NLDGKNQVKLESVAKLGHHFRITVKDDSVLR-KNKNYRIVD

Slime mold                    NLD-EAKVKLHYSEKDMFLLRISRKDEVAIR-DKKKYIVHA

Baker's yeast                 GFDPDKKLKLENHHLHGWCMRLTRNDAKELR-KHKKYIELS

Fission yeast                 HQDTEKKLHLEQHHLYGWCLRLTRTEAGCLRGRSSHYTELS

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 2 – 934 DNA mismatch repair protein Msh2
Beta strand 521 – 525


Literature citations

Functional analysis of human MutSalpha and MutSbeta complexes in yeast.
Clark A.B.; Cook M.E.; Tran H.T.; Gordenin D.A.; Resnick M.A.; Kunkel T.A.;
Nucleic Acids Res. 27:736-742(1999)
Cited for: MISMATCH-BINDING; CHARACTERIZATION OF VARIANT HNPCC1 PRO-524;

Mutator phenotypes of common polymorphisms and missense mutations in MSH2.
Drotschmann K.; Clark A.B.; Kunkel T.A.;
Curr. Biol. 9:907-910(1999)
Cited for: CHARACTERIZATION OF VARIANTS ASP-322; PHE-390; LYS-419; TYR-506; PRO-524; LEU-622 AND PHE-697;

HNPCC mutations in hMSH2 result in reduced hMSH2-hMSH6 molecular switch functions.
Heinen C.D.; Wilson T.; Mazurek A.; Berardini M.; Butz C.; Fishel R.;
Cancer Cell 1:469-478(2002)
Cited for: VARIANTS HNPCC1 HIS-167; MET-393; PRO-524; ASN-596 DEL; LEU-622; SER-674 AND ARG-905; CHARACTERIZATION OF VARIANTS HNPCC1 HIS-167; MET-393; PRO-524; ASN-596 DEL; LEU-622; SER-674 AND ARG-905;

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.