HEADER STRUCTURAL PROTEIN 26-MAY-25 9OT2 TITLE 13PF MICROTUBULE SYMMETRY EXPANSION COMPND MOL_ID: 1; COMPND 2 MOLECULE: TUBULIN ALPHA-1B CHAIN; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: ALPHA-TUBULIN UBIQUITOUS, TUBULIN K-ALPHA-1, TUBULIN ALPHA- COMPND 5 UBIQUITOUS CHAIN; COMPND 6 MOL_ID: 2; COMPND 7 MOLECULE: TUBULIN BETA CHAIN; COMPND 8 CHAIN: B SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BOS TAURUS; SOURCE 3 ORGANISM_COMMON: DOMESTIC CATTLE; SOURCE 4 ORGANISM_TAXID: 9913; SOURCE 5 MOL_ID: 2; SOURCE 6 ORGANISM_SCIENTIFIC: BOS TAURUS; SOURCE 7 ORGANISM_COMMON: DOMESTIC CATTLE; SOURCE 8 ORGANISM_TAXID: 9913 KEYWDS MICROTUBULE, SPEF1, CILIA, STRUCTURAL PROTEIN EXPDTA ELECTRON MICROSCOPY AUTHOR K.H.BUI,T.L.LEGAL REVDAT 1 30-JUL-25 9OT2 0 JRNL AUTH T.LEGAL,E.JOACHIMIAK,M.PARRA,W.PENG,A.TAM,C.BLACK,M.GUHA, JRNL AUTH 2 C.A.NGUYEN,A.GHANAEIAN,M.VALENTE-PATERNO,G.BROUHARD, JRNL AUTH 3 J.GAERTIG,D.WLOGA,K.H.BUI JRNL TITL STRUCTURE OF THE CILIARY TIP CENTRAL PAIR REVEALS THE UNIQUE JRNL TITL 2 ROLE OF THE MICROTUBULE-SEAM BINDING PROTEIN SPEF1. JRNL REF CURR.BIOL. V. 35 3404 2025 JRNL REFN ISSN 0960-9822 JRNL PMID 40651469 JRNL DOI 10.1016/J.CUB.2025.06.020 REMARK 2 REMARK 2 RESOLUTION. 5.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 SOFTWARE PACKAGES : NULL REMARK 3 RECONSTRUCTION SCHEMA : NULL REMARK 3 REMARK 3 EM MAP-MODEL FITTING AND REFINEMENT REMARK 3 PDB ENTRY : NULL REMARK 3 REFINEMENT SPACE : NULL REMARK 3 REFINEMENT PROTOCOL : NULL REMARK 3 REFINEMENT TARGET : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE : NULL REMARK 3 REMARK 3 FITTING PROCEDURE : NULL REMARK 3 REMARK 3 EM IMAGE RECONSTRUCTION STATISTICS REMARK 3 NOMINAL PIXEL SIZE (ANGSTROMS) : NULL REMARK 3 ACTUAL PIXEL SIZE (ANGSTROMS) : NULL REMARK 3 EFFECTIVE RESOLUTION (ANGSTROMS) : 5.800 REMARK 3 NUMBER OF PARTICLES : 40374 REMARK 3 CTF CORRECTION METHOD : PHASE FLIPPING AND AMPLITUDE REMARK 3 CORRECTION REMARK 3 REMARK 3 EM RECONSTRUCTION MAGNIFICATION CALIBRATION: NULL REMARK 3 REMARK 3 OTHER DETAILS: NULL REMARK 4 REMARK 4 9OT2 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 27-MAY-25. REMARK 100 THE DEPOSITION ID IS D_1000296287. REMARK 245 REMARK 245 EXPERIMENTAL DETAILS REMARK 245 RECONSTRUCTION METHOD : SUBTOMOGRAM AVERAGING REMARK 245 SPECIMEN TYPE : NULL REMARK 245 REMARK 245 ELECTRON MICROSCOPE SAMPLE REMARK 245 SAMPLE TYPE : FILAMENT REMARK 245 PARTICLE TYPE : POINT REMARK 245 NAME OF SAMPLE : 13-PF MICROTUBULE REMARK 245 SAMPLE CONCENTRATION (MG ML-1) : NULL REMARK 245 SAMPLE SUPPORT DETAILS : NULL REMARK 245 SAMPLE VITRIFICATION DETAILS : NULL REMARK 245 SAMPLE BUFFER : NULL REMARK 245 PH : 6.80 REMARK 245 SAMPLE DETAILS : NULL REMARK 245 REMARK 245 DATA ACQUISITION REMARK 245 DATE OF EXPERIMENT : NULL REMARK 245 NUMBER OF MICROGRAPHS-IMAGES : NULL REMARK 245 TEMPERATURE (KELVIN) : NULL REMARK 245 MICROSCOPE MODEL : TFS KRIOS REMARK 245 DETECTOR TYPE : GATAN K3 (6K X 4K) REMARK 245 MINIMUM DEFOCUS (NM) : 2000.00 REMARK 245 MAXIMUM DEFOCUS (NM) : 4000.00 REMARK 245 MINIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 MAXIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 NOMINAL CS : NULL REMARK 245 IMAGING MODE : BRIGHT FIELD REMARK 245 ELECTRON DOSE (ELECTRONS NM**-2) : 400.00 REMARK 245 ILLUMINATION MODE : FLOOD BEAM REMARK 245 NOMINAL MAGNIFICATION : NULL REMARK 245 CALIBRATED MAGNIFICATION : NULL REMARK 245 SOURCE : FIELD EMISSION GUN REMARK 245 ACCELERATION VOLTAGE (KV) : 300 REMARK 245 IMAGING DETAILS : NULL REMARK 247 REMARK 247 ELECTRON MICROSCOPY REMARK 247 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM ELECTRON REMARK 247 MICROSCOPY DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE REMARK 247 THAT CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES REMARK 247 ON THESE RECORDS ARE MEANINGLESS EXCEPT FOR THE CALCULATION REMARK 247 OF THE STRUCTURE FACTORS. REMARK 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON REMARK 300 BURIED SURFACE AREA. REMARK 350 REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS REMARK 350 GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. REMARK 350 REMARK 350 BIOMOLECULE: 1 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B REMARK 350 BIOMT1 1 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 1 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 1 0.000000 0.000000 1.000000 0.00000 REMARK 465 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 ASP A 39 REMARK 465 LYS A 40 REMARK 465 THR A 41 REMARK 465 ILE A 42 REMARK 465 GLY A 43 REMARK 465 GLY A 44 REMARK 465 GLY A 45 REMARK 465 ASP A 438 REMARK 465 SER A 439 REMARK 465 VAL A 440 REMARK 465 GLU A 441 REMARK 465 GLY A 442 REMARK 465 GLU A 443 REMARK 465 GLY A 444 REMARK 465 GLU A 445 REMARK 465 GLU A 446 REMARK 465 GLU A 447 REMARK 465 GLY A 448 REMARK 465 GLU A 449 REMARK 465 GLU A 450 REMARK 465 TYR A 451 REMARK 465 ASP B 437 REMARK 465 ALA B 438 REMARK 465 THR B 439 REMARK 465 ALA B 440 REMARK 465 ASP B 441 REMARK 465 GLU B 442 REMARK 465 GLN B 443 REMARK 465 GLY B 444 REMARK 465 GLU B 445 REMARK 465 PHE B 446 REMARK 465 GLU B 447 REMARK 465 GLU B 448 REMARK 465 GLU B 449 REMARK 465 GLU B 450 REMARK 465 GLY B 451 REMARK 465 GLU B 452 REMARK 465 ASP B 453 REMARK 465 GLU B 454 REMARK 465 ALA B 455 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 OE2 GLU A 71 HG1 THR A 73 1.58 REMARK 500 HG SER A 178 OE1 GLU A 183 1.59 REMARK 500 HG1 THR A 145 O2G GTP A 501 1.59 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 ARG A 2 NE - CZ - NH1 ANGL. DEV. = 3.3 DEGREES REMARK 500 ARG A 105 NE - CZ - NH1 ANGL. DEV. = 3.0 DEGREES REMARK 500 ARG A 123 NE - CZ - NH1 ANGL. DEV. = 3.2 DEGREES REMARK 500 ARG A 215 NE - CZ - NH2 ANGL. DEV. = 4.6 DEGREES REMARK 500 ARG A 221 NE - CZ - NH1 ANGL. DEV. = 4.3 DEGREES REMARK 500 ARG A 243 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 ARG A 402 NE - CZ - NH1 ANGL. DEV. = 3.5 DEGREES REMARK 500 ARG B 48 NE - CZ - NH2 ANGL. DEV. = 3.6 DEGREES REMARK 500 ARG B 64 NE - CZ - NH1 ANGL. DEV. = 3.8 DEGREES REMARK 500 ARG B 164 NE - CZ - NH1 ANGL. DEV. = 4.2 DEGREES REMARK 500 TYR B 185 CB - CG - CD2 ANGL. DEV. = -4.3 DEGREES REMARK 500 ARG B 243 NE - CZ - NH1 ANGL. DEV. = 3.5 DEGREES REMARK 500 ARG B 308 NE - CZ - NH1 ANGL. DEV. = 3.3 DEGREES REMARK 500 ARG B 311 NE - CZ - NH1 ANGL. DEV. = 3.4 DEGREES REMARK 500 ARG B 320 NE - CZ - NH1 ANGL. DEV. = 3.1 DEGREES REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: TORSION ANGLES REMARK 500 REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS: REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2) REMARK 500 REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI- REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400 REMARK 500 REMARK 500 M RES CSSEQI PSI PHI REMARK 500 ASP A 47 19.17 54.00 REMARK 500 PHE A 267 73.54 -108.60 REMARK 500 GLN B 96 -53.34 -120.19 REMARK 500 THR B 109 -73.10 -132.15 REMARK 500 VAL B 177 48.42 -140.08 REMARK 500 THR B 216 -58.28 -122.68 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 ARG A 390 0.08 SIDE CHAIN REMARK 500 ARG B 48 0.08 SIDE CHAIN REMARK 500 ARG B 64 0.09 SIDE CHAIN REMARK 500 REMARK 500 REMARK: NULL REMARK 620 REMARK 620 METAL COORDINATION REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 502 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GTP A 501 O1G REMARK 620 2 GTP A 501 O2G 70.6 REMARK 620 3 GTP A 501 O3B 61.4 60.4 REMARK 620 4 GTP A 501 O2B 113.7 112.3 65.2 REMARK 620 N 1 2 3 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: EMD-70819 RELATED DB: EMDB REMARK 900 13PF MICROTUBULE SYMMETRY EXPANSION DBREF 9OT2 A 1 451 UNP P81947 TBA1B_BOVIN 1 451 DBREF 9OT2 B 1 455 UNP E1BJB1 E1BJB1_BOVIN 1 445 SEQRES 1 A 451 MET ARG GLU CYS ILE SER ILE HIS VAL GLY GLN ALA GLY SEQRES 2 A 451 VAL GLN ILE GLY ASN ALA CYS TRP GLU LEU TYR CYS LEU SEQRES 3 A 451 GLU HIS GLY ILE GLN PRO ASP GLY GLN MET PRO SER ASP SEQRES 4 A 451 LYS THR ILE GLY GLY GLY ASP ASP SER PHE ASN THR PHE SEQRES 5 A 451 PHE SER GLU THR GLY ALA GLY LYS HIS VAL PRO ARG ALA SEQRES 6 A 451 VAL PHE VAL ASP LEU GLU PRO THR VAL ILE ASP GLU VAL SEQRES 7 A 451 ARG THR GLY THR TYR ARG GLN LEU PHE HIS PRO GLU GLN SEQRES 8 A 451 LEU ILE THR GLY LYS GLU ASP ALA ALA ASN ASN TYR ALA SEQRES 9 A 451 ARG GLY HIS TYR THR ILE GLY LYS GLU ILE ILE ASP LEU SEQRES 10 A 451 VAL LEU ASP ARG ILE ARG LYS LEU ALA ASP GLN CYS THR SEQRES 11 A 451 GLY LEU GLN GLY PHE LEU VAL PHE HIS SER PHE GLY GLY SEQRES 12 A 451 GLY THR GLY SER GLY PHE THR SER LEU LEU MET GLU ARG SEQRES 13 A 451 LEU SER VAL ASP TYR GLY LYS LYS SER LYS LEU GLU PHE SEQRES 14 A 451 SER ILE TYR PRO ALA PRO GLN VAL SER THR ALA VAL VAL SEQRES 15 A 451 GLU PRO TYR ASN SER ILE LEU THR THR HIS THR THR LEU SEQRES 16 A 451 GLU HIS SER ASP CYS ALA PHE MET VAL ASP ASN GLU ALA SEQRES 17 A 451 ILE TYR ASP ILE CYS ARG ARG ASN LEU ASP ILE GLU ARG SEQRES 18 A 451 PRO THR TYR THR ASN LEU ASN ARG LEU ILE SER GLN ILE SEQRES 19 A 451 VAL SER SER ILE THR ALA SER LEU ARG PHE ASP GLY ALA SEQRES 20 A 451 LEU ASN VAL ASP LEU THR GLU PHE GLN THR ASN LEU VAL SEQRES 21 A 451 PRO TYR PRO ARG ILE HIS PHE PRO LEU ALA THR TYR ALA SEQRES 22 A 451 PRO VAL ILE SER ALA GLU LYS ALA TYR HIS GLU GLN LEU SEQRES 23 A 451 SER VAL ALA GLU ILE THR ASN ALA CYS PHE GLU PRO ALA SEQRES 24 A 451 ASN GLN MET VAL LYS CYS ASP PRO ARG HIS GLY LYS TYR SEQRES 25 A 451 MET ALA CYS CYS LEU LEU TYR ARG GLY ASP VAL VAL PRO SEQRES 26 A 451 LYS ASP VAL ASN ALA ALA ILE ALA THR ILE LYS THR LYS SEQRES 27 A 451 ARG SER ILE GLN PHE VAL ASP TRP CYS PRO THR GLY PHE SEQRES 28 A 451 LYS VAL GLY ILE ASN TYR GLN PRO PRO THR VAL VAL PRO SEQRES 29 A 451 GLY GLY ASP LEU ALA LYS VAL GLN ARG ALA VAL CYS MET SEQRES 30 A 451 LEU SER ASN THR THR ALA ILE ALA GLU ALA TRP ALA ARG SEQRES 31 A 451 LEU ASP HIS LYS PHE ASP LEU MET TYR ALA LYS ARG ALA SEQRES 32 A 451 PHE VAL HIS TRP TYR VAL GLY GLU GLY MET GLU GLU GLY SEQRES 33 A 451 GLU PHE SER GLU ALA ARG GLU ASP MET ALA ALA LEU GLU SEQRES 34 A 451 LYS ASP TYR GLU GLU VAL GLY VAL ASP SER VAL GLU GLY SEQRES 35 A 451 GLU GLY GLU GLU GLU GLY GLU GLU TYR SEQRES 1 B 445 MET ARG GLU ILE VAL HIS ILE GLN ALA GLY GLN CYS GLY SEQRES 2 B 445 ASN GLN ILE GLY ALA LYS PHE TRP GLU VAL ILE SER ASP SEQRES 3 B 445 GLU HIS GLY ILE ASP PRO THR GLY SER TYR HIS GLY ASP SEQRES 4 B 445 SER ASP LEU GLN LEU GLU ARG ILE ASN VAL TYR TYR ASN SEQRES 5 B 445 GLU ALA ALA GLY ASN LYS TYR VAL PRO ARG ALA ILE LEU SEQRES 6 B 445 VAL ASP LEU GLU PRO GLY THR MET ASP SER VAL ARG SER SEQRES 7 B 445 GLY PRO PHE GLY GLN ILE PHE ARG PRO ASP ASN PHE VAL SEQRES 8 B 445 PHE GLY GLN SER GLY ALA GLY ASN ASN TRP ALA LYS GLY SEQRES 9 B 445 HIS TYR THR GLU GLY ALA GLU LEU VAL ASP SER VAL LEU SEQRES 10 B 445 ASP VAL VAL ARG LYS GLU SER GLU SER CYS ASP CYS LEU SEQRES 11 B 445 GLN GLY PHE GLN LEU THR HIS SER LEU GLY GLY GLY THR SEQRES 12 B 445 GLY SER GLY MET GLY THR LEU LEU ILE SER LYS ILE ARG SEQRES 13 B 445 GLU GLU TYR PRO ASP ARG ILE MET ASN THR PHE SER VAL SEQRES 14 B 445 MET PRO SER PRO LYS VAL SER ASP THR VAL VAL GLU PRO SEQRES 15 B 445 TYR ASN ALA THR LEU SER VAL HIS GLN LEU VAL GLU ASN SEQRES 16 B 445 THR ASP GLU THR TYR SER ILE ASP ASN GLU ALA LEU TYR SEQRES 17 B 445 ASP ILE CYS PHE ARG THR LEU LYS LEU THR THR PRO THR SEQRES 18 B 445 TYR GLY ASP LEU ASN HIS LEU VAL SER ALA THR MET SER SEQRES 19 B 445 GLY VAL THR THR CYS LEU ARG PHE PRO GLY GLN LEU ASN SEQRES 20 B 445 ALA ASP LEU ARG LYS LEU ALA VAL ASN MET VAL PRO PHE SEQRES 21 B 445 PRO ARG LEU HIS PHE PHE MET PRO GLY PHE ALA PRO LEU SEQRES 22 B 445 THR SER ARG GLY SER GLN GLN TYR ARG ALA LEU THR VAL SEQRES 23 B 445 PRO GLU LEU THR GLN GLN MET PHE ASP SER LYS ASN MET SEQRES 24 B 445 MET ALA ALA CYS ASP PRO ARG HIS GLY ARG TYR LEU THR SEQRES 25 B 445 VAL ALA ALA ILE PHE ARG GLY ARG MET SER MET LYS GLU SEQRES 26 B 445 VAL ASP GLU GLN MET LEU ASN VAL GLN ASN LYS ASN SER SEQRES 27 B 445 SER TYR PHE VAL GLU TRP ILE PRO ASN ASN VAL LYS THR SEQRES 28 B 445 ALA VAL CYS ASP ILE PRO PRO ARG GLY LEU LYS MET SER SEQRES 29 B 445 ALA THR PHE ILE GLY ASN SER THR ALA ILE GLN GLU LEU SEQRES 30 B 445 PHE LYS ARG ILE SER GLU GLN PHE THR ALA MET PHE ARG SEQRES 31 B 445 ARG LYS ALA PHE LEU HIS TRP TYR THR GLY GLU GLY MET SEQRES 32 B 445 ASP GLU MET GLU PHE THR GLU ALA GLU SER ASN MET ASN SEQRES 33 B 445 ASP LEU VAL SER GLU TYR GLN GLN TYR GLN ASP ALA THR SEQRES 34 B 445 ALA ASP GLU GLN GLY GLU PHE GLU GLU GLU GLU GLY GLU SEQRES 35 B 445 ASP GLU ALA HET GTP A 501 44 HET MG A 502 1 HET GDP B 501 40 HET TA1 B 502 113 HETNAM GTP GUANOSINE-5'-TRIPHOSPHATE HETNAM MG MAGNESIUM ION HETNAM GDP GUANOSINE-5'-DIPHOSPHATE HETNAM TA1 TAXOL FORMUL 3 GTP C10 H16 N5 O14 P3 FORMUL 4 MG MG 2+ FORMUL 5 GDP C10 H15 N5 O11 P2 FORMUL 6 TA1 C47 H51 N O14 HELIX 1 AA1 GLY A 10 GLY A 29 1 20 HELIX 2 AA2 ASP A 47 THR A 51 5 5 HELIX 3 AA3 PRO A 72 ARG A 79 1 8 HELIX 4 AA4 ASN A 102 TYR A 108 1 7 HELIX 5 AA5 ILE A 110 ASP A 127 1 18 HELIX 6 AA6 GLY A 143 TYR A 161 1 19 HELIX 7 AA7 VAL A 182 SER A 198 1 17 HELIX 8 AA8 ASN A 206 LEU A 217 1 12 HELIX 9 AA9 THR A 223 PHE A 244 1 22 HELIX 10 AB1 ASP A 251 VAL A 260 1 10 HELIX 11 AB2 SER A 287 CYS A 295 1 9 HELIX 12 AB3 PHE A 296 GLN A 301 5 6 HELIX 13 AB4 ASP A 306 GLY A 310 5 5 HELIX 14 AB5 VAL A 324 LYS A 338 1 15 HELIX 15 AB6 ILE A 384 LYS A 401 1 18 HELIX 16 AB7 VAL A 405 GLY A 410 1 6 HELIX 17 AB8 GLU A 415 VAL A 435 1 21 HELIX 18 AB9 GLY B 10 HIS B 28 1 19 HELIX 19 AC1 SER B 40 ARG B 48 1 7 HELIX 20 AC2 ILE B 49 VAL B 51 5 3 HELIX 21 AC3 GLU B 71 SER B 80 1 10 HELIX 22 AC4 PHE B 83 PHE B 87 5 5 HELIX 23 AC5 ARG B 88 ASP B 90 5 3 HELIX 24 AC6 ASN B 102 TYR B 108 1 7 HELIX 25 AC7 THR B 109 CYS B 129 1 21 HELIX 26 AC8 GLY B 144 TYR B 161 1 18 HELIX 27 AC9 VAL B 182 THR B 198 1 17 HELIX 28 AD1 ASP B 205 THR B 216 1 12 HELIX 29 AD2 THR B 223 THR B 239 1 17 HELIX 30 AD3 THR B 240 ARG B 243 5 4 HELIX 31 AD4 ASP B 251 VAL B 260 1 10 HELIX 32 AD5 THR B 287 PHE B 296 1 10 HELIX 33 AD6 ASP B 306 GLY B 310 5 5 HELIX 34 AD7 SER B 324 ASN B 339 1 16 HELIX 35 AD8 SER B 340 PHE B 343 5 4 HELIX 36 AD9 ILE B 384 ARG B 400 1 17 HELIX 37 AE1 LEU B 405 GLY B 410 1 6 HELIX 38 AE2 ASP B 414 GLN B 436 1 23 SHEET 1 AA1 6 LEU A 92 THR A 94 0 SHEET 2 AA1 6 ALA A 65 ASP A 69 1 N PHE A 67 O ILE A 93 SHEET 3 AA1 6 CYS A 4 VAL A 9 1 N HIS A 8 O VAL A 66 SHEET 4 AA1 6 GLY A 134 SER A 140 1 O PHE A 138 N ILE A 7 SHEET 5 AA1 6 SER A 165 TYR A 172 1 O PHE A 169 N VAL A 137 SHEET 6 AA1 6 CYS A 200 ASP A 205 1 O VAL A 204 N TYR A 172 SHEET 1 AA2 2 PHE A 53 THR A 56 0 SHEET 2 AA2 2 LYS A 60 PRO A 63 -1 O VAL A 62 N SER A 54 SHEET 1 AA3 5 GLY A 246 LEU A 248 0 SHEET 2 AA3 5 PHE A 351 ASN A 356 -1 O ILE A 355 N LEU A 248 SHEET 3 AA3 5 TYR A 312 GLY A 321 1 N CYS A 315 O LYS A 352 SHEET 4 AA3 5 ARG A 373 THR A 381 -1 O ASN A 380 N MET A 313 SHEET 5 AA3 5 LEU A 269 ALA A 273 -1 N LEU A 269 O SER A 379 SHEET 1 AA411 PHE B 92 PHE B 94 0 SHEET 2 AA411 ALA B 65 ASP B 69 1 N LEU B 67 O VAL B 93 SHEET 3 AA411 GLU B 3 ALA B 9 1 N GLN B 8 O VAL B 68 SHEET 4 AA411 LEU B 132 SER B 140 1 O GLN B 133 N GLU B 3 SHEET 5 AA411 ILE B 165 VAL B 171 1 O ASN B 167 N PHE B 135 SHEET 6 AA411 GLU B 200 ILE B 204 1 O TYR B 202 N THR B 168 SHEET 7 AA411 PHE B 267 ALA B 273 1 O PHE B 268 N THR B 201 SHEET 8 AA411 MET B 373 SER B 381 -1 O GLY B 379 N MET B 269 SHEET 9 AA411 TYR B 312 GLY B 321 -1 N THR B 314 O ASN B 380 SHEET 10 AA411 VAL B 351 CYS B 356 1 O LYS B 352 N VAL B 315 SHEET 11 AA411 GLY B 246 LEU B 248 -1 N LEU B 248 O VAL B 355 SHEET 1 AA5 2 TYR B 53 ALA B 56 0 SHEET 2 AA5 2 LYS B 60 PRO B 63 -1 O VAL B 62 N ASN B 54 LINK O1G GTP A 501 MG MG A 502 1555 1555 2.00 LINK O2G GTP A 501 MG MG A 502 1555 1555 2.20 LINK O3B GTP A 501 MG MG A 502 1555 1555 2.82 LINK O2B GTP A 501 MG MG A 502 1555 1555 1.96 CISPEP 1 ALA A 273 PRO A 274 0 -5.91 CISPEP 2 ALA B 273 PRO B 274 0 -5.47 CRYST1 1.000 1.000 1.000 90.00 90.00 90.00 P 1 ORIGX1 1.000000 0.000000 0.000000 0.00000 ORIGX2 0.000000 1.000000 0.000000 0.00000 ORIGX3 0.000000 0.000000 1.000000 0.00000 SCALE1 1.000000 0.000000 0.000000 0.00000 SCALE2 0.000000 1.000000 0.000000 0.00000 SCALE3 0.000000 0.000000 1.000000 0.00000 CONECT1325213253132541325513256 CONECT132531325213296 CONECT132541325213296 CONECT1325513252 CONECT13256132521325713296 CONECT1325713256132581325913260 CONECT1325813257 CONECT132591325713296 CONECT132601325713261 CONECT1326113260132621326313264 CONECT1326213261 CONECT1326313261 CONECT132641326113265 CONECT1326513264132661328413285 CONECT1326613265132671326813286 CONECT132671326613272 CONECT1326813266132691327013287 CONECT132691326813288 CONECT1327013268132711327213289 CONECT132711327013290 CONECT1327213267132701327313291 CONECT13273132721327413283 CONECT13274132731327513292 CONECT132751327413276 CONECT13276132751327713283 CONECT13277132761327813279 CONECT1327813277 CONECT13279132771328013293 CONECT13280132791328113282 CONECT13281132801329413295 CONECT132821328013283 CONECT13283132731327613282 CONECT1328413265 CONECT1328513265 CONECT1328613266 CONECT1328713268 CONECT1328813269 CONECT1328913270 CONECT1329013271 CONECT1329113272 CONECT1329213274 CONECT1329313279 CONECT1329413281 CONECT1329513281 CONECT1329613253132541325613259 CONECT1329713298132991330013301 CONECT1329813297 CONECT1329913297 CONECT1330013297 CONECT133011329713302 CONECT1330213301133031330413305 CONECT1330313302 CONECT1330413302 CONECT133051330213306 CONECT1330613305133071332513326 CONECT1330713306133081330913327 CONECT133081330713313 CONECT1330913307133101331113328 CONECT133101330913329 CONECT1331113309133121331313330 CONECT133121331113331 CONECT1331313308133111331413332 CONECT13314133131331513324 CONECT13315133141331613333 CONECT133161331513317 CONECT13317133161331813324 CONECT13318133171331913320 CONECT1331913318 CONECT13320133181332113334 CONECT13321133201332213323 CONECT13322133211333513336 CONECT133231332113324 CONECT13324133141331713323 CONECT1332513306 CONECT1332613306 CONECT1332713307 CONECT1332813309 CONECT1332913310 CONECT1333013311 CONECT1333113312 CONECT1333213313 CONECT1333313315 CONECT1333413320 CONECT1333513322 CONECT1333613322 CONECT133371333813399 CONECT1333813337133391339413396 CONECT1333913338133401334913400 CONECT133401333913341 CONECT13341133401334213343 CONECT1334213341 CONECT13343133411334413348 CONECT13344133431334513401 CONECT13345133441334613402 CONECT13346133451334713403 CONECT13347133461334813404 CONECT13348133431334713405 CONECT1334913339133501336113406 CONECT1335013349133511335513357 CONECT133511335013352 CONECT13352133511335313354 CONECT1335313352 CONECT1335413352134071340813409 CONECT1335513350133561341013411 CONECT133561335513357 CONECT1335713350133561335813412 CONECT1335813357133591341313414 CONECT1335913358133601336113415 CONECT133601335913416 CONECT1336113349133591336213363 CONECT1336213361134171341813419 CONECT13363133611336413365 CONECT1336413363 CONECT1336513363133661337013420 CONECT133661336513367 CONECT13367133661336813369 CONECT1336813367 CONECT1336913367134211342213423 CONECT13370133651337113396 CONECT13371133701337213395 CONECT1337213371133731339413424 CONECT133731337213374 CONECT13374133731337513376 CONECT1337513374 CONECT1337613374133771337813425 CONECT133771337613426 CONECT1337813376133791338813427 CONECT13379133781338013428 CONECT13380133791338113382 CONECT1338113380 CONECT13382133801338313387 CONECT13383133821338413429 CONECT13384133831338513430 CONECT13385133841338613431 CONECT13386133851338713432 CONECT13387133821338613433 CONECT13388133781338913393 CONECT13389133881339013434 CONECT13390133891339113435 CONECT13391133901339213436 CONECT13392133911339313437 CONECT13393133881339213438 CONECT1339413338133721343913440 CONECT1339513371134411344213443 CONECT1339613338133701339713398 CONECT1339713396134441344513446 CONECT1339813396134471344813449 CONECT1339913337 CONECT1340013339 CONECT1340113344 CONECT1340213345 CONECT1340313346 CONECT1340413347 CONECT1340513348 CONECT1340613349 CONECT1340713354 CONECT1340813354 CONECT1340913354 CONECT1341013355 CONECT1341113355 CONECT1341213357 CONECT1341313358 CONECT1341413358 CONECT1341513359 CONECT1341613360 CONECT1341713362 CONECT1341813362 CONECT1341913362 CONECT1342013365 CONECT1342113369 CONECT1342213369 CONECT1342313369 CONECT1342413372 CONECT1342513376 CONECT1342613377 CONECT1342713378 CONECT1342813379 CONECT1342913383 CONECT1343013384 CONECT1343113385 CONECT1343213386 CONECT1343313387 CONECT1343413389 CONECT1343513390 CONECT1343613391 CONECT1343713392 CONECT1343813393 CONECT1343913394 CONECT1344013394 CONECT1344113395 CONECT1344213395 CONECT1344313395 CONECT1344413397 CONECT1344513397 CONECT1344613397 CONECT1344713398 CONECT1344813398 CONECT1344913398 MASTER 243 0 4 38 26 0 0 6 6849 2 198 70 END