HEADER STRUCTURAL PROTEIN/INHIBITOR 31-DEC-69 7E4Z TITLE Crystal structure of tubulin in complex with Maytansinol COMPND MOL_ID: 1; COMPND 2 MOLECULE: Tubulin alpha-1B chain; COMPND 3 CHAIN: A, C; COMPND 4 ENGINEERED: YES; COMPND 5 MOL_ID: 2; COMPND 6 Tubulin beta-2B chain; COMPND 7 CHAIN: B, D; COMPND 8 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 2.69 ANGSTORMS REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 REMARK 465 M RES C SSSEQI REMARK 465 GLY B 277 REMARK 465 SER B 278 REMARK 465 GLN B 279 DBREF 7E4Z A 1 440 UNP P81947 TBA1B_BOVIN 1 440 DBREF 7E4Z B 1 441 UNP Q6B856 TBB2B_BOVIN 1 431 SEQRES 1 B 185 GLY GLN LEU ASN ALA ASP LEU ARG LYS LEU ALA VAL ASN SEQRES 2 B 185 MET VAL PRO PHE PRO ARG LEU HIS PHE PHE MET PRO GLY SEQRES 3 B 185 PHE ALA PRO LEU THR SER ARG GLY SER GLN GLN TYR ARG SEQRES 4 B 185 ALA LEU THR VAL PRO GLU LEU THR GLN GLN MET PHE ASP SEQRES 5 B 185 SER LYS ASN MET MET ALA ALA CYS ASP PRO ARG HIS GLY SEQRES 6 B 185 ARG TYR LEU THR VAL ALA ALA ILE PHE ARG GLY ARG MET SEQRES 7 B 185 SER MET LYS GLU VAL ASP GLU GLN MET LEU ASN VAL GLN SEQRES 8 B 185 ASN LYS ASN SER SER TYR PHE VAL GLU TRP ILE PRO ASN SEQRES 9 B 185 ASN VAL LYS THR ALA VAL CYS ASP ILE PRO PRO ARG GLY SEQRES 10 B 185 LEU LYS MET SER ALA THR PHE ILE GLY ASN SER THR ALA SEQRES 11 B 185 ILE GLN GLU LEU PHE LYS ARG ILE SER GLU GLN PHE THR SEQRES 12 B 185 ALA MET PHE ARG ARG LYS ALA PHE LEU HIS TRP TYR THR SEQRES 13 B 185 GLY GLU GLY MET ASP GLU MET GLU PHE THR GLU ALA GLU SEQRES 14 B 185 SER ASN MET ASN ASP LEU VAL SER GLU TYR GLN GLN TYR SEQRES 15 B 185 GLN ASP ALA