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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P00742: Variant p.Pro383Ser

Coagulation factor X
Gene: F10
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Variant information Variant position: help 383 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 Proline (P) to Serine (S) at position 383 (P383S, p.Pro383Ser). 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 hydrophobic (P) to small size and polar (S) 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; Friuli. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 383 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 GFGRTHEKGRQSTRLKMLEV P YVDRNSCKLSSSFIITQNMF 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                         GFGRTHEKGRQSTRLKMLEVPYVDRNSCKLSSSFIITQNMF

Mouse                         GFGRTHEKGRQSNILKMLEVPYVDRNTCKLSTSFSITQNMF

Rat                           GFGRTHEKGRQSKVLKMMEVPYVDRNTCRLSTSFSITQNMF

Bovine                        GFGRTHEKGRLSSTLKMLEVPYVDRSTCKLSSSFTITPNMF

Rabbit                        GFGRTHEMGRLSTTLKMLEVPYVDRNSCKRSSSFTITQNMF

Chicken                       GFGREFEAGRLSKRLKVLEVPYVDRSTCKQSTNFAITENMF
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 183 – 488 Factor X heavy chain
Chain 235 – 488 Activated factor Xa heavy chain
Domain 235 – 467 Peptidase S1
Beta strand 378 – 385



Literature citations
Molecular defect in coagulation factor XFriuli results from a substitution of serine for proline at position 343.
James H.L.; Girolami A.; Fair D.S.;
Blood 77:317-323(1991)
Cited for: VARIANT FA10D SER-383;
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.