Jp. Zhu et al., Crystallization and preliminary crystallographic studies of antibacterial polypeptide LCl expressed in Escherichia coli, ACT CRYST D, 57, 2001, pp. 1931-1932
LCI is a type of novel antibacterial polypeptide secreted by a Bacillus sub
tilis strain. It consists of 47 residues with a molecular weight of 5468 Da
. Using bioengineering, LCI was expressed in Escherichia coli DH5 alpha wit
h recombinant plasmid pBVAB16. It was crystallized using PEG 4000 as a prec
ipitant. The crystal belongs to space group P6(2)22 or P6(4)22, with unit-c
ell parameters a=b=29.30, c=187.09 Angstrom, and diffracts to 2.44 Angstrom
. A set of diffraction data to 2.8 Angstrom was collected.