RGD Reference Report - Detection of 95 novel mutations in coagulation factor VIII gene F8 responsible for hemophilia A: results from a single institution. - Rat Genome Database

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Detection of 95 novel mutations in coagulation factor VIII gene F8 responsible for hemophilia A: results from a single institution.

Authors: Guillet, B  Lambert, T  D'Oiron, R  Proulle, V  Plantier, JL  Rafowicz, A  Peynet, J  Costa, JM  Bendelac, L  Laurian, Y  Lavergne, JM 
Citation: Guillet B, etal., Hum Mutat. 2006 Jul;27(7):676-85.
RGD ID: 1582357
Pubmed: PMID:16786531   (View Abstract at PubMed)
DOI: DOI:10.1002/humu.20345   (Journal Full-text)

Hemophilia A (HA) is an X-linked hereditary bleeding disorder defined by a qualitative and/or quantitative factor VIII (FVIII) deficiency. The molecular diagnosis of HA is challenging because of the high number of different causative mutations that are distributed throughout the large F8 gene. The putative role of the novel mutations, especially missense mutations, may be difficult to interpret as causing HA. We identified 95 novel mutations out of 180 different mutations responsible for HA in 515 patients from 406 unrelated families followed up at a single hemophilia treatment center of the Bicetre university hospital (Assistance Publique-Hopitaux de Paris [AP-HP], Le Kremlin-Bicetre). These 95 novel mutations comprised 55 missense mutations, 12 nonsense mutations, 11 splice site mutations, and 17 small insertions/deletions. We therefore developed a mutation analysis based on a body of proof that combines the familial segregation of the mutation, the resulting biological and clinical HA phenotype, and the molecular consequences of the amino acid (AA) substitution. For the latter, we studied the putative biochemical modifications: its conservation status with cross-species FVIII and homologous proteins, its putative location in known FVIII functional regions, and its spatial position in the available FVIII 3D structures. The usefulness of such a strategy in interpreting the causality of novel F8 mutations is emphasized.

RGD Manual Disease Annotations    Click to see Annotation Detail View
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
factor VIII deficiency  ISOF8 (Homo sapiens)1582357; 1582357 RGD 
factor VIII deficiency  IAGP 1582357 RGD 

Objects Annotated

Genes (Rattus norvegicus)
F8  (coagulation factor VIII)

Genes (Mus musculus)
F8  (coagulation factor VIII)

Genes (Homo sapiens)
F8  (coagulation factor VIII)


Additional Information