SHEET DETERMINATION METHOD: DSSP THE SHEETS PRESENTED AS "AA" IN EACH CHAIN ON SHEET RECORDS BELOW ... SHEET DETERMINATION METHOD: DSSP THE SHEETS PRESENTED AS "AA" IN EACH CHAIN ON SHEET RECORDS BELOW IS ACTUALLY AN 8-STRANDED BARREL THIS IS REPRESENTED BY A 9-STRANDED SHEET IN WHICH THE FIRST AND LAST STRANDS ARE IDENTICAL.
Mass: 20941.508 Da / Num. of mol.: 2 / Fragment: CATALYTIC DOMAIN, RESIDUES 23-187 Source method: isolated from a genetically manipulated source Details: THE FIRST 22 AMINO ACIDS WERE REMOVED AND A HIS-TAG WAS ENGINEERED AT THE N-TERMINAL DOMAIN TO AID IN PURIFICATION. Source: (gene. exp.) CLOSTRIDIUM PERFRINGENS (bacteria) / Production host: ESCHERICHIA COLI (E. coli) / Strain (production host): BL21(DE3) References: UniProt: Q0TUL5, UniProt: Q8XNW0*PLUS, sortase A
Mass: 18.015 Da / Num. of mol.: 95 / Source method: isolated from a natural source / Formula: H2O
Sequence details
THE FIRST 22 AMINO ACIDS WERE REMOVED AND REPLACED WITH A N-TERMINAL HIS-TAG.
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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: 2.41 Å3/Da / Density % sol: 48.9 % / Description: NONE
Crystal grow
Temperature: 281 K / Method: vapor diffusion / pH: 5.5 Details: THE PROTEIN CONCENTRATION WAS 20 MG/ML AND THE RESERVOIR CONDITIONS WERE 0.2M AMMONIUM ACETATE, 25% PEG 3350, 0.1M BIS-TRIS CHLORIDE AT PH 5.5 AND INCUBATED AT 8C.
Resolution: 1.99→67.9 Å / Cor.coef. Fo:Fc: 0.962 / Cor.coef. Fo:Fc free: 0.948 / SU B: 8.059 / SU ML: 0.111 / Cross valid method: THROUGHOUT / ESU R: 0.172 / ESU R Free: 0.15 / Stereochemistry target values: MAXIMUM LIKELIHOOD Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. U VALUES WITH TLS ADDED
Rfactor
Num. reflection
% reflection
Selection details
Rfree
0.21335
1214
5.2 %
RANDOM
Rwork
0.17569
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obs
0.17769
22304
99.5 %
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Solvent computation
Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK