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                  Biological Magnetic Resonance Data BankA Repository for Data from NMR Spectroscopy on Proteins, Peptides, Nucleic Acids, and other Biomolecules  | 
                
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	Congenital afibrinogenemia is a rare, inherited blood disorder in which the blood does not clot normally. It occurs when there is a protein called fibrinogen is totally lacking. This protein is needed for the blood to clot.
| Gene Name | Chromosome number | 
|---|---|
| FGA | 4 | 
| FGG | 4 | 
| FGB | 4 |