Characterization of two crystal forms of neutrophil cationic protein NP2, a naturally occurring broad-spectrum antimicrobial agent from leukocytes期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Characterization of two crystal forms of neutrophil cationic protein NP2, a naturally occurring broad-spectrum antimicrobial agent from leukocytes

Authors:	Edwin M Westbrook Robert I Lehrer Michael E Selsted

Institution:	Division of Biological and Medical Research Argonne National Laboratory 9700 South Cass Avenue Argonne, IL 60439, U.S.A.;Department of Medicine University of California at Los Angeles The Center for the Health Sciences Los Angeles, CA 90024, U.S.A.

Abstract:	A hexagonal crystal form (P6₃22, $a = b = 34.0 A ?, c = 113.5 A ?$ ) and a monoclinic form (P2₁, $a = 37.1 A ?, b = 32.2 A ?, c = 32.4 A ?, β = 110 °$ ) of neutrophil cationic protein NP2, isolated from rabbit leukocytes, have been characterized. The monoclinic form, containing two promoters (M_r = 3844) per asymmetric unit, diffracts to at least 1.8 Å and is suitable for high-resolution structural studies.

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