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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P43246: Variant p.Val17Phe

DNA mismatch repair protein Msh2
Gene: MSH2
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Variant information Variant position: help 17 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help US 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 Valine (V) to Phenylalanine (F) at position 17 (V17F, p.Val17Phe). 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 hydrophobic (V) to large size and aromatic (F) 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 gastric cancer; uncertain significance; cryptic acceptor splice site suppressed on ex vivo splicing assay. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 17 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 934 The length of the canonical sequence.
Location on the sequence: help MAVQPKETLQLESAAE V GFVRFFQGMPEKPTTTVRLF 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                         MAVQPKETLQLESAAEVGFVRFFQGM--PEKPTTTVRLF

Mouse                         MAVQPKETLQLEGAAEAGFVRFFEGM--PEKPSTTVR

Rat                           MAVQPKETLQLEGAAEVGFVRFFEGM--PEKPSTTVG

Bovine                        MAVQPKDTLQLDSAAEVGFVRFFQGM--PEKPTTTVR

Drosophila                    TDSRQEPTLNMDTNARRNFIKFHAKL--GEKPATTVR

Slime mold                    SDNEQEESSQVVLKEDKTFVTFFQSLVSSNEDTDTIR

Baker's yeast                 MSSTRPELKFSDVSEERNFYKKYTGL--PKKPLKTIR

Fission yeast                 MSS-RNASIANERTDEARMFNFYEKM--P-KDTNTVR

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
Initiator methionine 1 – 1 Removed
Chain 2 – 934 DNA mismatch repair protein Msh2
Modified residue 2 – 2 N-acetylalanine
Alternative sequence 1 – 66 Missing. In isoform 2.
Helix 14 – 24



Literature citations
hMLH1 and hMSH2 mutations in families with familial clustering of gastric cancer and hereditary non-polyposis colorectal cancer.
Kim J.C.; Kim H.C.; Roh S.A.; Koo K.H.; Lee D.H.; Yu C.S.; Lee J.H.; Kim T.W.; Lee H.I.; Beck N.E.; Bodmer W.F.;
Cancer Detect. Prev. 25:503-510(2001)
Cited for: VARIANTS GASTRIC CANCER PHE-17; GLU-824; ALA-868; GLY-870 AND GLY-873; VARIANTS LYNCH1 CYS-98; TYR-323; ILE-335; ARG-629 AND VAL-714;
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.