Variant position: 542 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: 1068 The length of the canonical sequence.
Location on the sequence:
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 ELRENDKEQLKAISTRDPLS EITEQEKDFLWSHRHYCVTIP
Mouse ELRENDKEQLRALCTRDPLS EITEQEKDFLWSHRHYCVTIP
Rat ELRENDKEQLRALCTRDPLS EITEQEKDFLWSHRHYCVTIP
Bovine ELRENDKEQLRAICTRDPLS EITEQEKDFLWSHRHYCVTIP
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.
Type Positions Description
1 – 1068 Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform
517 – 694 PIK helical
PIK3CA mutation and histological type in breast carcinoma: high frequency of mutations in lobular carcinoma.
Buttitta F.; Felicioni L.; Barassi F.; Martella C.; Paolizzi D.; Fresu G.; Salvatore S.; Cuccurullo F.; Mezzetti A.; Campani D.; Marchetti A.;
J. Pathol. 208:350-355(2006)
Cited for: VARIANTS BC LYS-542; VAL-542; LYS-545; ARG-546; ARG-1047 AND LEU-1047;
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.