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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P02679: Variant p.Arg301His

Fibrinogen gamma chain
Gene: FGG
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Variant information Variant position: help 301 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 Arginine (R) to Histidine (H) at position 301 (R301H, p.Arg301His). 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 basic (R) to medium size and polar (H) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help 0 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 DYSFIBRIN; fibrinogen Bergamo-2/Essen/Haifa/Osaka-3/Perugia/Saga/Barcelona-3/Barcelona-4. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 301 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 453 The length of the canonical sequence.
Location on the sequence: help GRTSTADYAMFKVGPEADKY R LTYAYFAGGDAGDAFDGFDF 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                         GRTSTADYAMFKVGPEADKYRLTYAYFAGGDAGDAFDGFDF

Mouse                         GRTSTADYAMFRVGPESDKYRLTYAYFIGGDAGDAFDGYDF

Rat                           GRTSTADYAMFRVGPESDKYRLTYAYFIGGDAGDAFDGYDF

Bovine                        GRTSTADYASFKVTGENDKYRLTYAYFIGGDAGDAFDGYDF

Xenopus laevis                NQKSTADYSTFRLGSEKDNYRFTYAYFIGGDAGDAFDGFDF
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 27 – 453 Fibrinogen gamma chain
Domain 170 – 416 Fibrinogen C-terminal
Beta strand 301 – 303



Literature citations
Abnormal polymerization and normal binding of plasminogen and t-PA in three new dysfibrinogenaemias: Barcelona III and IV (gamma Arg 275-->His) and Villajoyosa (gamma Arg 275-->Cys).
Borrell M.; Gari M.; Coll I.; Vallve C.; Tirado I.; Soria J.M.; Sala N.; Munoz C.; Oliver A.; Garcia A.;
Blood Coagul. Fibrinolysis 6:198-206(1995)
Cited for: PROTEIN SEQUENCE OF 291-310; VARIANTS HIS-301 AND CYS-301; Heterozygous abnormal fibrinogen Osaka III with the replacement of gamma arginine-275 by histidine has an apparently higher molecular weight gamma-chain variant.
Yoshida N.; Imoka S.; Hirata H.; Matsuda M.; Asakura S.;
Thromb. Haemost. 68:534-538(1992)
Cited for: VARIANT OSAKA-3 HIS-301; Three abnormal fibrinogen variants with the same amino acid substitution (gamma 275 Arg-->His): fibrinogens Bergamo II, Essen and Perugia.
Reber P.; Furlan M.; Henschen A.; Kaudewitz H.; Barbui T.; Hilgard P.; Nenci G.G.; Berrettini M.; Beck E.A.;
Thromb. Haemost. 56:401-406(1986)
Cited for: VARIANT BERGAMO-2/ESSEN/HAIFA/PERUGIA HIS-301; Normal plasmic cleavage of the gamma-chain variant of 'fibrinogen Saga' with an Arg-275 to His substitution.
Yamazumi K.; Terukina S.; Onohara S.; Matsuda M.;
Thromb. Haemost. 60:476-480(1988)
Cited for: INVOLVEMENT IN DYSFIBRIN; VARIANT DYSFIBRIN HIS-301;
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.