The F9 gene homepage

General information
Gene symbol F9
Gene name coagulation factor IX
Chromosome X
Chromosomal band q27.1
Imprinted Unknown
Genomic reference NG_007994.1
Transcript reference NM_000133.3
Exon/intron information NM_000133.3 exon/intron table
Associated with diseases DMBCYP2A6, HEMB, THPH8
Citation reference(s) PubMed: Rallapalli et al., 2013
PubMed: McVey et al., 2020
Refseq URL Genomic reference sequence
Curators (1) Geoffrey Kemball-Cook
Total number of public variants reported 3615
Unique public DNA variants reported 1116
Individuals with public variants 3563
Hidden variants 6
Date created September 13, 2012
Date last updated May 22, 2023
Version F9:230522

Graphical displays and utilities
Graphs Graphs displaying summary information of all variants in the database »
Reading frame checker The Reading-frame checker generates a prediction of the effect of whole-exon changes. Active for: NM_000133.3.
UCSC Genome Browser Show variants in the UCSC Genome Browser (full view, compact view)
Ensembl Genome Browser Show variants in the Ensembl Genome Browser (full view, compact view)
NCBI Sequence Viewer Show distribution histogram of variants in the NCBI Sequence Viewer

Links to other resources
Homepage URL
External URL EAHAD Coagulation Factor Variant Databases
EAHAD F9 Variant Database
HGNC 3551
Entrez Gene 2158
PubMed articles F9
OMIM - Gene 300746
OMIM - Diseases DMBCYP2A6 (metabolism, drug, resistance, coumarin)
HEMB (hemophilia B (HEMB))
THPH8 (thrombophilia, X-linked, due to factor IX defect (THPH8))
GeneCards F9
GeneTests F9
Orphanet F9

Active transcripts




NCBI ID     

NCBI Protein ID     

00000394 X coagulation factor IX NM_000133.3 NP_000124.1 3615

Copyright & disclaimer
The European Association for Haemophilia and Allied Disorders Coagulation Factor Variant Databases (EAHAD-CFDB) are maintained and provided as a public service for the clinical, diagnostic and coagulation factor research communities. All individuals accessing and using the information contained in these variant databases managed by EAHAD-CFDB explicitly agree to abide by the database policy.