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UniProtKB/Swiss-Prot Q13315: Variant p.Ala2626Pro

Serine-protein kinase ATM
Gene: ATM
Variant information

Variant position:  2626
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Type of variant:  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:  From Alanine (A) to Proline (P) at position 2626 (A2626P, p.Ala2626Pro).
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 small size and hydrophobic (A) to medium size and hydrophobic (P)
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

Variant description:  In AT; unknown pathological significance.
Any additional useful information about the variant.

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



Sequence information

Variant position:  2626
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  3056
The length of the canonical sequence.

Location on the sequence:   ICTIRSRRPQMVRSVEALCD  A YIILANLDATQWKTQRKGIN
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                         ICTIRSRRPQMVRSVEALCDAYIILANLDAT-QWKTQRKGI------N

Mouse                         IHSIRSKRCKMVKDMEALCDAYIILANMDAS-QWRAQRKGI

Pig                           ICTLRNRRRQMVRSVEALCDAYIILANLDAT-QWRTQRKGI

Caenorhabditis elegans        DQRDSSKLKEIVITIREAHQAYREIAMLDVRGNVRIQRVEI

Drosophila                    ICEKNGTAGECSKQLESLLPALITFANEGKTNDNRPVSDSV

Baker's yeast                 GYDRGAFAKKYLLPVQEFCEMSVELANLKFVQNTKTLRLA-

Fission yeast                 LLKVNQGLSNLVTKLLCSFENYVSLA------EWNP-RSKV

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 – 3056 Serine-protein kinase ATM
Helix 2614 – 2632


Literature citations

A double missense mutation in the ATM gene of a Dutch family with ataxia telangiectasia.
van Belzen M.J.; Hiel J.A.P.; Weemaes C.M.R.; Gabreeels F.J.M.; van Engelen B.G.M.; Smeets D.F.C.M.; van den Heuvel L.P.W.J.;
Hum. Genet. 102:187-191(1998)
Cited for: VARIANT AT 2625-GLU-PRO-2626;

Ataxia-telangiectasia: phenotype/genotype studies of ATM protein expression, mutations, and radiosensitivity.
Becker-Catania S.G.; Chen G.; Hwang M.J.; Wang Z.; Sun X.; Sanal O.; Bernatowska-Matuszkiewicz E.; Chessa L.; Lee E.Y.-H.P.; Gatti R.A.;
Mol. Genet. Metab. 70:122-133(2000)
Cited for: VARIANTS AT 35-ARG--VAL-3056 DEL; CYS-49; 292-LEU; 393-TRP--VAL-3056 DEL; LEU-1082; 1171-GLN--VAL-3056 DEL; 1839-GLN--VAL-3056 DEL; GLU-2063; CYS-2227; 2246-CYS--THR-2252 DELINS HIS; 2547-AER--SER-2549 DEL; GLU-2625 AND PRO-2626;

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.