HEADER METHYLTRANSFERASE 06-MAY-97 1AJM TITLE CRYSTAL STRUCTURE OF THYMIDYLATE SYNTHASE R126E MUTANT COMPND MOL_ID: 1; COMPND 2 MOLECULE: THYMIDYLATE SYNTHASE; COMPND 3 CHAIN: A; COMPND 4 EC: 2.1.1.45; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 6 EXPRESSION_SYSTEM_STRAIN: XAC25 THY- STRAIN; SOURCE 7 EXPRESSION_SYSTEM_PLASMID: BLUSCRIPT SK+ KEYWDS TRANSFERASE, METHYLTRANSFERASE, DUMP EXPDTA X-RAY DIFFRACTION AUTHOR P.STROP,W.R.MONTFORT REVDAT 7 30-OCT-24 1AJM 1 REMARK REVDAT 6 03-NOV-21 1AJM 1 SEQADV LINK REVDAT 5 18-APR-18 1AJM 1 REMARK REVDAT 4 13-JUL-11 1AJM 1 VERSN REVDAT 3 24-FEB-09 1AJM 1 VERSN REVDAT 2 11-JUN-99 1AJM 1 JRNL REVDAT 1 12-NOV-97 1AJM 0 JRNL AUTH P.STROP,L.CHANGCHIEN,F.MALEY,W.R.MONTFORT JRNL TITL CRYSTAL STRUCTURES OF A MARGINALLY ACTIVE THYMIDYLATE JRNL TITL 2 SYNTHASE MUTANT, ARG 126-->GLU. JRNL REF PROTEIN SCI. V. 6 2504 1997 JRNL REFN ISSN 0961-8368 JRNL PMID 9416600 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH W.R.MONTFORT,K.M.PERRY,E.B.FAUMAN,J.S.FINER-MOORE,G.F.MALEY, REMARK 1 AUTH 2 L.HARDY,F.MALEY,R.M.STROUD REMARK 1 TITL STRUCTURE, MULTIPLE SITE BINDING, AND SEGMENTAL REMARK 1 TITL 2 ACCOMMODATION IN THYMIDYLATE SYNTHASE ON BINDING DUMP AND AN REMARK 1 TITL 3 ANTI-FOLATE REMARK 1 REF BIOCHEMISTRY V. 29 6964 1990 REMARK 1 REFN ISSN 0006-2960 REMARK 1 REFERENCE 2 REMARK 1 AUTH W.R.MONTFORT,K.M.PERRY,E.B.FAUMAN,J.S.FINER-MOORE,G.F.MALEY, REMARK 1 AUTH 2 L.HARDY,F.MALEY,R.M.STROUD REMARK 1 TITL ERRATUM. STRUCTURE, MULTIPLE SITE BINDING, AND SEGMENTAL REMARK 1 TITL 2 ACCOMMODATION IN THYMIDYLATE SYNTHASE ON BINDING DUMP AND AN REMARK 1 TITL 3 ANTI-FOLATE REMARK 1 REF BIOCHEMISTRY V. 29 10864 1990 REMARK 1 REFN ISSN 0006-2960 REMARK 2 REMARK 2 RESOLUTION. 2.40 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : TNT 1 REMARK 3 AUTHORS : TRONRUD,TEN EYCK,MATTHEWS REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.40 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 25.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 92.0 REMARK 3 NUMBER OF REFLECTIONS : 14066 REMARK 3 REMARK 3 USING DATA ABOVE SIGMA CUTOFF. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING + TEST SET) : NULL REMARK 3 R VALUE (WORKING SET) : 0.182 REMARK 3 FREE R VALUE : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL REMARK 3 REMARK 3 USING ALL DATA, NO SIGMA CUTOFF. REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.1820 REMARK 3 FREE R VALUE (NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 14066 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2151 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 50 REMARK 3 REMARK 3 WILSON B VALUE (FROM FCALC, A**2) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. RMS WEIGHT COUNT REMARK 3 BOND LENGTHS (A) : 0.012 ; 0.800 ; 2211 REMARK 3 BOND ANGLES (DEGREES) : 1.217 ; 1.300 ; 2986 REMARK 3 TORSION ANGLES (DEGREES) : 19.505; 0.000 ; 1282 REMARK 3 PSEUDOROTATION ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 TRIGONAL CARBON PLANES (A) : 0.007 ; 2.000 ; 63 REMARK 3 GENERAL PLANES (A) : 0.013 ; 5.000 ; 316 REMARK 3 ISOTROPIC THERMAL FACTORS (A**2) : NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS (A) : 0.020 ; 12.000; 19 REMARK 3 REMARK 3 INCORRECT CHIRAL-CENTERS (COUNT) : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : 0.62 REMARK 3 BSOL : 157.1 REMARK 3 REMARK 3 RESTRAINT LIBRARIES. REMARK 3 STEREOCHEMISTRY : TNT PROTGEO REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS : TNT BCORREL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1AJM COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000170897. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : DEC-95 REMARK 200 TEMPERATURE (KELVIN) : 295 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : ENRAF-NONIUS FR571 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : GRAPHITE(002) REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : DIFFRACTOMETER REMARK 200 DETECTOR MANUFACTURER : ENRAF-NONIUS FAST REMARK 200 INTENSITY-INTEGRATION SOFTWARE : PROCOR REMARK 200 DATA SCALING SOFTWARE : FBSCALE REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 14066 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.400 REMARK 200 RESOLUTION RANGE LOW (A) : 25.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 92.0 REMARK 200 DATA REDUNDANCY : 6.200 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.10100 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : NULL REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 61.41 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.19 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 7.5 REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 21 3 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 REMARK 290 4555 X+1/2,-Y+1/2,-Z REMARK 290 5555 Z,X,Y REMARK 290 6555 Z+1/2,-X+1/2,-Y REMARK 290 7555 -Z+1/2,-X,Y+1/2 REMARK 290 8555 -Z,X+1/2,-Y+1/2 REMARK 290 9555 Y,Z,X REMARK 290 10555 -Y,Z+1/2,-X+1/2 REMARK 290 11555 Y+1/2,-Z+1/2,-X REMARK 290 12555 -Y+1/2,-Z,X+1/2 REMARK 290 13555 X+1/2,Y+1/2,Z+1/2 REMARK 290 14555 -X,-Y+1/2,Z REMARK 290 15555 -X+1/2,Y,-Z REMARK 290 16555 X,-Y,-Z+1/2 REMARK 290 17555 Z+1/2,X+1/2,Y+1/2 REMARK 290 18555 Z,-X,-Y+1/2 REMARK 290 19555 -Z,-X+1/2,Y REMARK 290 20555 -Z+1/2,X,-Y REMARK 290 21555 Y+1/2,Z+1/2,X+1/2 REMARK 290 22555 -Y+1/2,Z,-X REMARK 290 23555 Y,-Z,-X+1/2 REMARK 290 24555 -Y,-Z+1/2,X REMARK 290 REMARK 290 WHERE NNN -> OPERATOR NUMBER REMARK 290 MMM -> TRANSLATION VECTOR REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY REMARK 290 RELATED MOLECULES. REMARK 290 SMTRY1 1 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 1 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 1 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 2 -1.000000 0.000000 0.000000 66.35000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 66.35000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 66.35000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 66.35000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 66.35000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 66.35000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY2 5 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY1 6 0.000000 0.000000 1.000000 66.35000 REMARK 290 SMTRY2 6 -1.000000 0.000000 0.000000 66.35000 REMARK 290 SMTRY3 6 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY1 7 0.000000 0.000000 -1.000000 66.35000 REMARK 290 SMTRY2 7 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 1.000000 0.000000 66.35000 REMARK 290 SMTRY1 8 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY2 8 1.000000 0.000000 0.000000 66.35000 REMARK 290 SMTRY3 8 0.000000 -1.000000 0.000000 66.35000 REMARK 290 SMTRY1 9 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 9 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY3 9 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY1 10 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 10 0.000000 0.000000 1.000000 66.35000 REMARK 290 SMTRY3 10 -1.000000 0.000000 0.000000 66.35000 REMARK 290 SMTRY1 11 0.000000 1.000000 0.000000 66.35000 REMARK 290 SMTRY2 11 0.000000 0.000000 -1.000000 66.35000 REMARK 290 SMTRY3 11 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY1 12 0.000000 -1.000000 0.000000 66.35000 REMARK 290 SMTRY2 12 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY3 12 1.000000 0.000000 0.000000 66.35000 REMARK 290 SMTRY1 13 1.000000 0.000000 0.000000 66.35000 REMARK 290 SMTRY2 13 0.000000 1.000000 0.000000 66.35000 REMARK 290 SMTRY3 13 0.000000 0.000000 1.000000 66.35000 REMARK 290 SMTRY1 14 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 14 0.000000 -1.000000 0.000000 66.35000 REMARK 290 SMTRY3 14 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 15 -1.000000 0.000000 0.000000 66.35000 REMARK 290 SMTRY2 15 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 15 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 16 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 16 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 16 0.000000 0.000000 -1.000000 66.35000 REMARK 290 SMTRY1 17 0.000000 0.000000 1.000000 66.35000 REMARK 290 SMTRY2 17 1.000000 0.000000 0.000000 66.35000 REMARK 290 SMTRY3 17 0.000000 1.000000 0.000000 66.35000 REMARK 290 SMTRY1 18 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY2 18 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 18 0.000000 -1.000000 0.000000 66.35000 REMARK 290 SMTRY1 19 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY2 19 -1.000000 0.000000 0.000000 66.35000 REMARK 290 SMTRY3 19 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY1 20 0.000000 0.000000 -1.000000 66.35000 REMARK 290 SMTRY2 20 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 20 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY1 21 0.000000 1.000000 0.000000 66.35000 REMARK 290 SMTRY2 21 0.000000 0.000000 1.000000 66.35000 REMARK 290 SMTRY3 21 1.000000 0.000000 0.000000 66.35000 REMARK 290 SMTRY1 22 0.000000 -1.000000 0.000000 66.35000 REMARK 290 SMTRY2 22 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY3 22 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY1 23 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 23 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY3 23 -1.000000 0.000000 0.000000 66.35000 REMARK 290 SMTRY1 24 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 24 0.000000 0.000000 -1.000000 66.35000 REMARK 290 SMTRY3 24 1.000000 0.000000 0.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 4130 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 21090 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -15.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A 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 350 BIOMT1 2 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 66.35000 REMARK 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 HOH A 265 LIES ON A SPECIAL POSITION. 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 THR A 47 4.78 -64.44 REMARK 500 PRO A 92 53.76 -69.75 REMARK 500 TYR A 94 -74.47 -18.02 REMARK 500 ALA A 100 50.29 -150.89 REMARK 500 ASP A 122 55.29 -177.21 REMARK 500 REMARK 500 REMARK: NULL DBREF 1AJM A 2 264 UNP P0A884 TYSY_ECOLI 2 264 SEQADV 1AJM GLU A 126 UNP P0A884 ARG 126 ENGINEERED MUTATION SEQRES 1 A 264 CXM LYS GLN TYR LEU GLU LEU MET GLN LYS VAL LEU ASP SEQRES 2 A 264 GLU GLY THR GLN LYS ASN ASP ARG THR GLY THR GLY THR SEQRES 3 A 264 LEU SER ILE PHE GLY HIS GLN MET ARG PHE ASN LEU GLN SEQRES 4 A 264 ASP GLY PHE PRO LEU VAL THR THR LYS ARG CYS HIS LEU SEQRES 5 A 264 ARG SER ILE ILE HIS GLU LEU LEU TRP PHE LEU GLN GLY SEQRES 6 A 264 ASP THR ASN ILE ALA TYR LEU HIS GLU ASN ASN VAL THR SEQRES 7 A 264 ILE TRP ASP GLU TRP ALA ASP GLU ASN GLY ASP LEU GLY SEQRES 8 A 264 PRO VAL TYR GLY LYS GLN TRP ARG ALA TRP PRO THR PRO SEQRES 9 A 264 ASP GLY ARG HIS ILE ASP GLN ILE THR THR VAL LEU ASN SEQRES 10 A 264 GLN LEU LYS ASN ASP PRO ASP SER GLU ARG ILE ILE VAL SEQRES 11 A 264 SER ALA TRP ASN VAL GLY GLU LEU ASP LYS MET ALA LEU SEQRES 12 A 264 ALA PRO CYS HIS ALA PHE PHE GLN PHE TYR VAL ALA ASP SEQRES 13 A 264 GLY LYS LEU SER CYS GLN LEU TYR GLN ARG SER CYS ASP SEQRES 14 A 264 VAL PHE LEU GLY LEU PRO PHE ASN ILE ALA SER TYR ALA SEQRES 15 A 264 LEU LEU VAL HIS MET MET ALA GLN GLN CYS ASP LEU GLU SEQRES 16 A 264 VAL GLY ASP PHE VAL TRP THR GLY GLY ASP THR HIS LEU SEQRES 17 A 264 TYR SER ASN HIS MET ASP GLN THR HIS LEU GLN LEU SER SEQRES 18 A 264 ARG GLU PRO ARG PRO LEU PRO LYS LEU ILE ILE LYS ARG SEQRES 19 A 264 LYS PRO GLU SER ILE PHE ASP TYR ARG PHE GLU ASP PHE SEQRES 20 A 264 GLU ILE GLU GLY TYR ASP PRO HIS PRO GLY ILE LYS ALA SEQRES 21 A 264 PRO VAL ALA ILE MODRES 1AJM CXM A 1 MET N-CARBOXYMETHIONINE HET CXM A 1 11 HETNAM CXM N-CARBOXYMETHIONINE FORMUL 1 CXM C6 H11 N O4 S FORMUL 2 HOH *50(H2 O) HELIX 1 1 LYS A 2 GLU A 14 1 13 HELIX 2 2 LEU A 38 ASP A 40 5 3 HELIX 3 3 LEU A 52 GLN A 64 1 13 HELIX 4 4 ALA A 70 GLU A 74 1 5 HELIX 5 5 ILE A 79 TRP A 83 5 5 HELIX 6 6 TYR A 94 ARG A 99 1 6 HELIX 7 7 GLN A 111 ASN A 121 1 11 HELIX 8 8 VAL A 135 LYS A 140 5 6 HELIX 9 9 LEU A 174 GLN A 191 1 18 HELIX 10 10 SER A 210 SER A 221 5 12 HELIX 11 11 ILE A 239 ASP A 241 5 3 HELIX 12 12 PHE A 244 ASP A 246 5 3 SHEET 1 A 4 THR A 16 ASN A 19 0 SHEET 2 A 4 GLY A 25 PHE A 30 -1 N SER A 28 O THR A 16 SHEET 3 A 4 ASP A 205 TYR A 209 -1 N LEU A 208 O LEU A 27 SHEET 4 A 4 SER A 167 ASP A 169 1 N CYS A 168 O ASP A 205 SHEET 1 B 5 HIS A 32 ASN A 37 0 SHEET 2 B 5 ASP A 198 GLY A 203 -1 N GLY A 203 O HIS A 32 SHEET 3 B 5 LYS A 158 GLN A 165 1 N CYS A 161 O VAL A 200 SHEET 4 B 5 HIS A 147 ALA A 155 -1 N ALA A 155 O LYS A 158 SHEET 5 B 5 ILE A 129 SER A 131 -1 N VAL A 130 O PHE A 150 SHEET 1 C 2 LYS A 229 ILE A 232 0 SHEET 2 C 2 PHE A 247 GLU A 250 -1 N GLU A 250 O LYS A 229 LINK C CXM A 1 N LYS A 2 1555 1555 1.31 CRYST1 132.700 132.700 132.700 90.00 90.00 90.00 I 21 3 24 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 0.007536 0.000000 0.000000 0.00000 SCALE2 0.000000 0.007536 0.000000 0.00000 SCALE3 0.000000 0.000000 0.007536 0.00000 HETATM 1 N CXM A 1 -12.335 -0.965 15.897 1.00 23.94 N HETATM 2 CA CXM A 1 -12.099 0.147 16.743 1.00 24.18 C HETATM 3 CB CXM A 1 -13.427 0.682 17.266 1.00 29.29 C HETATM 4 CG CXM A 1 -14.040 1.729 16.379 1.00 38.20 C HETATM 5 SD CXM A 1 -15.551 2.404 17.025 1.00 41.38 S HETATM 6 CE CXM A 1 -16.549 1.026 16.902 1.00 45.39 C HETATM 7 C CXM A 1 -11.338 -0.473 17.857 1.00 30.68 C HETATM 8 O CXM A 1 -11.643 -1.588 18.309 1.00 21.82 O HETATM 9 CN CXM A 1 -12.513 -0.814 14.457 1.00 28.61 C HETATM 10 ON1 CXM A 1 -12.238 0.164 13.754 1.00 48.98 O HETATM 11 ON2 CXM A 1 -13.125 -2.046 13.812 1.00 40.93 O