Avtor/Urednik     Turk, D; Podobnik, M; Kuhelj, R; Dolinar, M; Turk, V
Naslov     Crystal structures of human procathepsin B at 3.2 and 3.3 Angstroms resolution reveal an interaction motif between a papain-like cysteine protease and its propeptide
Tip     članek
Vir     FEBS Lett
Vol. in št.     Letnik 384, št. 3
Leto izdaje     1996
Obseg     str. 211-4
Jezik     eng
Abstrakt     A wild-type human procathepsin B was expressed, crystallized in two crystal forms and its crystal structure determined at 3.2 and 3.3 Angstroms resolution. The structure reveals that the propeptide folds on the cathepsin B surface, shielding the enzyme active site from exposure to solvent. The structure of the enzymatically active domains is virtually identical to that of the native enzyme ŠMusil et al. (1991) EMBO J. 10, 2321-2330Ć: the main difference is that the occluding loop residues are lifted above the body of the mature enzyme, supporting the propeptide structure.
Deskriptorji     CATHEPSIN B
CRYSTALLOGRAPHY, X-RAY
ENZYME PRECURSORS
BINDING SITES
CYSTEINE PROTEINASES
MODELS, MOLECULAR
PAPAIN
PEPTIDE FRAGMENTS
PROTEIN CONFORMATION
STRUCTURE-ACTIVITY RELATIONSHIP