2SGQ
GLN 18 VARIANT OF TURKEY OVOMUCOID INHIBITOR THIRD DOMAIN COMPLEXED WITH STREPTOMYCES GRISEUS PROTEINASE B AT PH 6.5
Summary for 2SGQ
Entry DOI | 10.2210/pdb2sgq/pdb |
Descriptor | Streptogrisin B, Ovomucoid, PHOSPHATE ION, ... (4 entities in total) |
Functional Keywords | complex (serine protease-inhibitor), serine proteinase, protein inhibitor, hydrolase-hydrolase inhibitor complex, hydrolase/hydrolase inhibitor |
Biological source | Meleagris gallopavo (turkey) More |
Cellular location | Secreted: P68390 |
Total number of polymer chains | 2 |
Total formula weight | 24348.46 |
Authors | Huang, K.,Lu, W.,Anderson, S.,Laskowski Jr., M.,James, M.N.G. (deposition date: 1999-03-25, release date: 2003-08-26, Last modification date: 2024-10-30) |
Primary citation | Huang, K.,Lu, W.,Anderson, S.,Laskowski Jr., M.,James, M.N.G. Recruitment of a Buried K+ Ion to Stabilize the Negative Charge of Ionized P1 in the Hydrophobic Pocket: Crystal Structures of Glu18, Gln18, Asp18 and Asn18 Variants of Turkey Ovomucoid Inhibitor Third Domain Complexed with Streptomyces griseus Protease B at Various pH's To be Published, |
Experimental method | X-RAY DIFFRACTION (1.8 Å) |
Structure validation
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