Defensins are a family of antimicrobial and cytotoxic peptides thought to be involved in host defense. They are abundant in the granules of neutrophils and also found in the epithelia of mucosal surfaces such as those of the intestine, respiratory tract, urinary tract, and vagina. Members of the defensin family are highly similar in protein sequence and distinguished by a conserved cysteine motif. Several alpha defensin genes are clustered on chromosome 8. DEFA4 differs from other genes of this family by an extra 83-base segment that is apparently the result of a recent duplication within the coding region. Neutrophil defensin 4 encoded by DEFA4, defensin, alpha 4, is found in the neutrophils; it exhibits corticostatic activity and inhibits corticotropin stimulated corticosterone production.蛋白别名为：DEFA4; DEF4; Neutrophil defensin 4; Defensin; alpha 4; HNP-4; HP-4;基因ID为：1669；蛋白质ID:P12838
应用类型
IHC-p，ELISA补充：最优的抗体稀释比例需要基于客户实验进行优化.建议的起始稀释比例如下: IHC-p: 1:100-1:300, ELISA: 1:40000. Not yet tested in other applications.
