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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P21802: Variant p.Tyr381Asp

Fibroblast growth factor receptor 2
Gene: FGFR2
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Variant information Variant position: help 381 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help LP/P [Disclaimer] 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 Tyrosine (Y) to Aspartate (D) at position 381 (Y381D, p.Tyr381Asp). 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 large size and aromatic (Y) to medium size and acidic (D) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help -3 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 BBDS1. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 381 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 821 The length of the canonical sequence.
Location on the sequence: help PAPGREKEITASPDYLEIAI Y CIGVFLIACMVVTVILCRMK 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                         PAPGREKEI-----TASPDYLEIAIYCIGVFLIACMVVTVILCRMK

Mouse                         PAPVREKEI-----TASPDYLEIAIYCIGVFLIACMVVTVI

Chicken                       PAPEKEKEF-----PTSPDYLEIAIYCIGVFLIACMVLTVI

Xenopus laevis                PAPVNPLED-----NPVPYYMEIGIYSTGIFIIFCMVVVCV

Zebrafish                     PAETNPIET-----DYPPDYVEIAIYCIGVFLIACMVVIVV

Drosophila                    -SPLPPLEIYALLHAHPLGFTLAAITIVALFLLGSAFITFM
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 – 821 Fibroblast growth factor receptor 2
Transmembrane 378 – 398 Helical
Alternative sequence 255 – 821 Missing. In isoform 8.
Alternative sequence 314 – 429 Missing. In isoform 9.
Alternative sequence 361 – 361 P -> PKQQ. In isoform 3, isoform 4, isoform 11, isoform 12, isoform 13 and isoform 16.
Alternative sequence 366 – 821 Missing. In isoform 13.



Literature citations
Bent bone dysplasia-FGFR2 type, a distinct skeletal disorder, has deficient canonical FGF signaling.
Merrill A.E.; Sarukhanov A.; Krejci P.; Idoni B.; Camacho N.; Estrada K.D.; Lyons K.M.; Deixler H.; Robinson H.; Chitayat D.; Curry C.J.; Lachman R.S.; Wilcox W.R.; Krakow D.;
Am. J. Hum. Genet. 90:550-557(2012)
Cited for: VARIANTS BBDS1 ASP-381 AND ARG-391; CHARACTERIZATION OF VARIANT BBDS1 ARG-391;
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.