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Habib AG, Gebi UI, Onyemelukwe GC.SourceDepartment of Medicine(Immunology), Ahmadu Bello University Teaching Hospital, P.M.B 1026, Zaria, Nigeria.
African journal of medicine and medical sciences.Afr J Med Med Sci.2001 Sep;30(3):171-8.
Four families of venomous snakes are found in Nigeria--Viperidae, Elapidae, Colubridae and Actraspididae but three species carpet viper (Echis ocellatus), black-necked spitting cobra (Naja nigricollis) and puff adder (Bitis arietans), belonging to the first two families, are the most important snake
PMID 14510123

Crystal structure determination of alkaline haemorrhagin AaH III from snake venom of Agkistrodon acutus.

Gong W, Teng M, Niu L.SourceDepartment of Biology, University of Science and Technology of China, Hefei, China.
Science in China. Series C, Life sciences / Chinese Academy of Sciences.Sci China C Life Sci.1997 Aug;40(4):351-5.
The haemorrhagin AaH III isolated from the snake venom of Agkistrodon acutus is one of the few alkaline ones in snake venoms. Its crystals belong to space group P2(1)2(1)2(1) with a = 9. 573 4 nm, b = 4. 996 7 nm and c = 4.728 8 nm. Its crystal structure was determined by the molecular replacement m
PMID 18762873