Mass: 18.015 Da / Num. of mol.: 137 / Source method: isolated from a natural source / Formula: H2O
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Details
Compound details
Inhibitor of microtubule assembly
Has protein modification
Y
Sequence details
AUTHOR STATES THAT FOR ALPHA-TUBULIN (CHAIN A AND CHAIN C), THE BOVINE BRAIN TUBULIN SEQUENCE WAS ...AUTHOR STATES THAT FOR ALPHA-TUBULIN (CHAIN A AND CHAIN C), THE BOVINE BRAIN TUBULIN SEQUENCE WAS USED FOR REFINEMENT BECAUSE THE SEQUENCE OF OVINE BRAIN TUBULIN IS NOT AVAILABLE. FOR BETA-TUBULIN (CHAIN B AND CHAIN D), THERE ARE THREE MAJOR ISOTYPES EXPRESSED IN THE BRAIN. THEY MAINLY USED THE BETA 2B ISOTYPE SEQUENCE (NCBI NP_001003900.1), BUT INTRODUCED POINT MUTATIONS WHEN POSSIBLE TO TAKE INTO ACCOUNT THE ISOTYPE DIVERSITY. SPECIFICALLY, RESIDUE THR 33 IS FOUND IN 75% OF TUBULIN MOLECULES (25% IS SER). IT IS REFINED WITH THR BUT WITH AN 75% OCCUPANCY FOR THE CG2 ATOM. RESIDUE 172: MET (60%) OR VAL (40%), REFINED WITH MET, BUT WITH OCCUPANCY 0.6 FOR SD AND CE ATOMS. RESIDUE 220: A MIX OF THR (75%) AND ALA (25%), REFINED WITH THR, OCCUPANCY 0.75 FOR OG1 AND CG2 ATOMS. AT POSITION 277, A MIX OF SER (75%) AND ALA (25%), REFINED WITH SER BUT WITH OCCUPANCY O.75 FOR OG ATOM. RESIDUE 298: SAME AS ABOVE BUT WITH SER 60% AND ALA 40%, REFINED WITH SER BUT WITH OCCUPANCY O.60 FOR OG ATOM. POSITION 317: THR 25%, ALA 75%, REFINED WITH A THR BUT WITH AN 0.25 OCCUPANCY FOR THE OG1 AND CG2 ATOMS. RESIDUE 318: ILE (60%) OR VAL (40%), REFINED WITH ILE, WITH OCCUPANCY 0.6 FOR CD1 ATOM. RESIDUE 335: THE SAME AS ABOVE BUT WITH ILE 25% AND VAL 75%, REFINED WITH ILE, WITH OCCUPANCY 0.25 FOR CD1 ATOM. RESIDUE 375, A MIX OF ALA (0.75) AND SER (0.25) AT THIS POSITION, REFINED WITH SER, OCCUPANCY 0.25 FOR OG ATOM. THE STATHMIN-4 FRAGMENT (CHAIN E) USED IN THIS STUDY INCLUDES A N-TERMINAL ALA RESIDUE, HAS TWO POINT MUTATIONS (CYS14 TO ALA AND PHE20 TO TRP, STATHMIN NUMBERING).
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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: 2.45 Å3/Da / Density % sol: 49.79 %
Crystal grow
Temperature: 293 K / pH: 6.8 Details: PEG, LISO4, PIPES BUFFER, PH 6.80, VAPOR DIFFUSION, HANGING DROP, temperature 293K
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