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Nucleic Acids Res. 1998 Jan 1;26(1):216-9.

The factor VIII Structure and Mutation Resource Site: HAMSTeRS version 4.

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  • 1Haemostasis Research Group, MRC Clinical Sciences Centre, Imperial College Medical School, Hammersmith Hospital, Du Cane Road, London W12 ONN, UK. gkemball@hgmp.mrc.ac.uk


Since 1996 the HAMSTeRS (Haemophilia A Mutation, Search, Test and Resource Site) WWW site has provided an online resource for access to data on the molecular pathology of haemophilia A, replacing previous text editions of the Haemophilia A Database published in Nucleic Acids Research . This report describes the continued development of the site (version 4), and in particular the expansion of factor VIII (FVIII) structure-related features. Access to the mutation database itself, both for searching the listings and for submission of new mutations, is via custom-designed forms: more powerful Boolean searches of the point mutations in the database are also available. During 1997 a total of 22 novel missense mutations were reported, increasing the total number of unique variants now described to 252 (238 in exonic sequences and 14 at intronic splice junctions). Currently, a total of 586 individual reports with associated phenotypic data are available for searching by any category including phenotype. The FVIII structure section now includes a download of a FVIII A domain homology model in Protein Data Bank format and a multiple alignment of the FVIII amino-acid sequencies from four species (human, murine, porcine and canine) in addition to the virtual reality simulations, secondary structural data and FVIII animation already available. Finally, to aid navigation across this site, a clickable roadmap of the main features provides easy access to the page desired. Our intention is that continued development and updating of the site shall provide workers in the fields of molecular and structural biology with a one-stop resource site to facilitate FVIII research and education. The HAMSTeRS URL is http://europium.mrc.rpms.ac.uk

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