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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P11362: Variant p.Val664Leu

Fibroblast growth factor receptor 1
Gene: FGFR1
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Variant information Variant position: help 664 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 Leucine (L) at position 664 (V664L, p.Val664Leu). 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 Similar physico-chemical property. Both residues are medium size and hydrophobic. 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 a lung large cell carcinoma sample; somatic mutation. Any additional useful information about the variant.


Sequence information Variant position: help 664 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 822 The length of the canonical sequence.
Location on the sequence: help LARDIHHIDYYKKTTNGRLP V KWMAPEALFDRIYTHQSDVW 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.
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
Chain 22 – 822 Fibroblast growth factor receptor 1
Topological domain 398 – 822 Cytoplasmic
Domain 478 – 767 Protein kinase
Modified residue 653 – 653 Phosphotyrosine; by autocatalysis
Modified residue 654 – 654 Phosphotyrosine; by autocatalysis
Alternative sequence 62 – 822 Missing. In isoform 3.
Alternative sequence 151 – 822 Missing. In isoform 16.
Alternative sequence 392 – 822 Missing. In isoform 17 and isoform 18.
Alternative sequence 663 – 822 Missing. In isoform 2, isoform 5, isoform 7, isoform 9, isoform 11 and isoform 13.
Mutagenesis 653 – 653 Y -> F. No effect on kinase activity. Loss of autophosphorylation and kinase activity; when associated with F-654.
Mutagenesis 654 – 654 Y -> F. Reduced kinase activity. Loss of autophosphorylation and kinase activity; when associated with F-653.
Helix 663 – 666



Literature citations
Patterns of somatic mutation in human cancer genomes.
Greenman C.; Stephens P.; Smith R.; Dalgliesh G.L.; Hunter C.; Bignell G.; Davies H.; Teague J.; Butler A.; Stevens C.; Edkins S.; O'Meara S.; Vastrik I.; Schmidt E.E.; Avis T.; Barthorpe S.; Bhamra G.; Buck G.; Choudhury B.; Clements J.; Cole J.; Dicks E.; Forbes S.; Gray K.; Halliday K.; Harrison R.; Hills K.; Hinton J.; Jenkinson A.; Jones D.; Menzies A.; Mironenko T.; Perry J.; Raine K.; Richardson D.; Shepherd R.; Small A.; Tofts C.; Varian J.; Webb T.; West S.; Widaa S.; Yates A.; Cahill D.P.; Louis D.N.; Goldstraw P.; Nicholson A.G.; Brasseur F.; Looijenga L.; Weber B.L.; Chiew Y.-E.; DeFazio A.; Greaves M.F.; Green A.R.; Campbell P.; Birney E.; Easton D.F.; Chenevix-Trench G.; Tan M.-H.; Khoo S.K.; Teh B.T.; Yuen S.T.; Leung S.Y.; Wooster R.; Futreal P.A.; Stratton M.R.;
Nature 446:153-158(2007)
Cited for: VARIANTS [LARGE SCALE ANALYSIS] LEU-125; THR-252 AND LEU-664;
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.