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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P00742: Variant p.Glu54Lys

Coagulation factor X
Gene: F10
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Variant information Variant position: help 54 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 Glutamate (E) to Lysine (K) at position 54 (E54K, p.Glu54Lys). 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 acidic (E) to large size and basic (K) 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 FA10D; Vorarlberg; converts prothrombin at a normal rate but shows decreased affinity for calcium. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 54 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 488 The length of the canonical sequence.
Location on the sequence: help ILARVTRANSFLEEMKKGHL E RECMEETCSYEEAREVFEDS 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                         ILARVTRANSFLEEMKKGHLERECMEETCSYEEAREVFEDS

Mouse                         VLARTRRANSFFEEFKKGNLERECMEEICSYEEVREIFEDD

Rat                           VLQRIRRANSFFEEIKKGNLERECVEEICSFEEAREVFEDN

Bovine                        VLQRARRANSFLEEVKQGNLERECLEEACSLEEAREVFEDA

Rabbit                        VLARTRRANSFLEELKKGNLERECMEENCSYEEALEVFEDR

Chicken                       FLERTKRANSFLEEMKQGNIERECNEERCSKEEAREAFEDN
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 41 – 488 Coagulation factor X
Chain 41 – 179 Factor X light chain
Domain 41 – 85 Gla
Modified residue 46 – 46 4-carboxyglutamate
Modified residue 47 – 47 4-carboxyglutamate
Modified residue 54 – 54 4-carboxyglutamate
Modified residue 56 – 56 4-carboxyglutamate
Modified residue 59 – 59 4-carboxyglutamate
Modified residue 60 – 60 4-carboxyglutamate
Modified residue 65 – 65 4-carboxyglutamate
Modified residue 66 – 66 4-carboxyglutamate
Modified residue 69 – 69 4-carboxyglutamate
Modified residue 72 – 72 4-carboxyglutamate
Helix 47 – 57



Literature citations
Molecular defect (Gla+14TO: hereditary factor X deficiency (factor X 'Vorarlberg').
Watzke H.H.; Lechner K.; Roberts H.R.; Reddy S.V.; Welsch D.J.; Friedman P.; Mahr G.; Jagadeeswaran P.; Monroe D.M.; High K.A.;
J. Biol. Chem. 265:11982-11989(1990)
Cited for: VARIANTS FA10D LYS-54 AND LYS-142; CHARACTERIZATION OF VARIANT FA10D LYS-54; Molecular analysis of the genotype-phenotype relationship in factor X deficiency.
Millar D.S.; Elliston L.; Deex P.; Krawczak M.; Wacey A.I.; Reynaud J.; Nieuwenhuis H.K.; Bolton-Maggs P.; Mannucci P.M.; Reverter J.C.; Cachia P.; Pasi K.J.; Layton D.M.; Cooper D.N.;
Hum. Genet. 106:249-257(2000)
Cited for: VARIANTS FA10D LYS-54; TYR-149; TYR-151; ARG-289; LYS-304; TRP-327; MET-338; LYS-350; MET-358; SER-363 AND ARG-404;
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.