Protein Preparation, Crystallization and Preliminary X-ray Crystallographic Analysis of Smu_195c From Caries Pathogen Streptococcus mutans / 生物化学与生物物理进展
Progress in Biochemistry and Biophysics
; (12): 203-206, 2007.
Article
em Zh
| WPRIM
| ID: wpr-408090
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WPRO
ABSTRACT
Smu_195c is a protein with 86 amino acids in Streptococcus mutans, a primary pathogen for human dental caries. The specific function of Smu_195c is still unknown and there are no conserved domains in it. In order to find out its function, the gene encodes Smu_195c was cloned and expressed in E. coli as N-terminally 6*His tagged recombinant protein. Two crystal forms were obtained by the hanging drop method. Form Ⅰ belongs to space group P6122 or P6522 with the unit cell parameters a = b = 62.93 (A), c= 90.63 (A), γ=120° and form Ⅱ belongs to the space group P41212 or P43212 with the unit cell parameters a =b=57.97 (A), c = 103.51 (A).Crystals from the protein with His-tag belong to form Ⅰ, however, crystals from the protein without His-tag belong to both.
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Idioma:
Zh
Revista:
Progress in Biochemistry and Biophysics
Ano de publicação:
2007
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Article