Crystal Structure of Caspase-7 with inhibitor AC-DNLD-CHO

Plasticity of S2-S4 specificity pockets of executioner caspase-7 revealed by structural and kinetic analysis.

CASP-7, ICE-like apoptotic protease 3, ICE-LAP3, Apoptotic protease Mch-3, CMH-1

AKPDRSSFVPSLFSKKKKNVTMRSIKTTRDRVPTYQYNMNFEKLGKCIIINNKNFDKVTGMGVRNGTDKDAEALFKCFRS
LGFDVIVYNDCSCAKMQDLLKKASEEDHTNAACFACILLSHGEENVIYGKDGVTPIKDLTAHFRGDRCKTLLEKPKLFFI
QACRGTELDDGIQ

ANPRYKIPVEADFLFAYSTVPGYYSWRSPGRGSWFVQALCSILEEHGKDLEIMQILTRVNDRVARHFESQSDDPHFHEKK
QIPCVVSMLTKELYFSQ

14.5% PEG 3350, 0.3M diammonium hydrogen citrate, 10mM DTT, pH 6.7, VAPOR DIFFUSION, HANGING DROP, temperature 298K

THE INHIBITOR IS COVALENTLY CONNECTED TO CYS OF THE ENZYME TO FORM A HEMITHIOKETAL

CYSTEINE PROTEASE, APOPTOSIS, THIOL PROTEASE, ZYMOGEN, HYDROLASE-HYDROLASE INHIBITOR COMPLEX

BINDING SITE FOR CHAIN E OF INHIBITOR AC-DNLD-CHO

BINDING SITE FOR CHAIN F OF INHIBITOR AC-DNLD-CHO

BINDING SITE FOR CHAIN G OF PEPTIDE QGHGE