- PDB-4abj: Co-complex structure of bovine trypsin with a modified Bowman-Bir... -
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Basic information
Entry
Database: PDB / ID: 4abj
Title
Co-complex structure of bovine trypsin with a modified Bowman-Birk inhibitor (IcA)SFTI-1(1,14), that was 1,5-disubstituted with 1,2,3- trizol to mimic a cis amide bond
SHEET DETERMINATION METHOD: DSSP THE SHEETS PRESENTED AS "AC" IN EACH CHAIN ON SHEET RECORDS BELOW ... SHEET DETERMINATION METHOD: DSSP THE SHEETS PRESENTED AS "AC" IN EACH CHAIN ON SHEET RECORDS BELOW IS ACTUALLY AN 6-STRANDED BARREL THIS IS REPRESENTED BY A 7-STRANDED SHEET IN WHICH THE FIRST AND LAST STRANDS ARE IDENTICAL.
Mass: 18.015 Da / Num. of mol.: 282 / Source method: isolated from a natural source / Formula: H2O
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Details
Sequence details
ILE46-PRO47 IN THE NATIVE SEQUENCE HAS BEEN CHEMICALLY MODIFIED TO PLW TO MIMIC A CIS AMIDE BOND.
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Experimental details
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Experiment
Experiment
Method: X-RAY DIFFRACTION / Number of used crystals: 1
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Sample preparation
Crystal
Density Matthews: 2.7 Å3/Da / Density % sol: 54.5 % / Description: NONE
Crystal grow
Details: 2.0 M (NH4)2SO4,50 MM TRIS PH 8.5 WITH 30 MG/ML TRYPSIN (SIDMA T1246) IN 0.3 M (NH4)2SO4, 6 MM CACL2, 0.1 M TRIS PH 8.15, 60 MM BENZAMIDINE) TO 10 UL PROTEIN SOL 0.5 UL DIMETHYLFORMAMID WAS ...Details: 2.0 M (NH4)2SO4,50 MM TRIS PH 8.5 WITH 30 MG/ML TRYPSIN (SIDMA T1246) IN 0.3 M (NH4)2SO4, 6 MM CACL2, 0.1 M TRIS PH 8.15, 60 MM BENZAMIDINE) TO 10 UL PROTEIN SOL 0.5 UL DIMETHYLFORMAMID WAS ADDED PRIOR CRYSTAL SET UP CRYSTALS WERE SOAKED WITH ICA-SFTI (ADDED IN LYOPHYLIZED FORM TO THE CRYSTALLIZATION DROP AFTER 2 WEEKS). TOTAL SOAKING TIME 8 DAYS.