HEADER TRANSFERASE 27-JUN-11 3SM3 TITLE CRYSTAL STRUCTURE OF SAM-DEPENDENT METHYLTRANSFERASES Q8PUK2_METMA TITLE 2 FROM METHANOSARCINA MAZEI. NORTHEAST STRUCTURAL GENOMICS CONSORTIUM TITLE 3 TARGET MAR262. COMPND MOL_ID: 1; COMPND 2 MOLECULE: SAM-DEPENDENT METHYLTRANSFERASES; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: METHANOSARCINA MAZEI; SOURCE 3 ORGANISM_TAXID: 192952; SOURCE 4 STRAIN: ATCC BAA-159/DSM 3647/GOE1/GO1/JCM 11883/OCM 88; SOURCE 5 GENE: MM_2332; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3) +MAGIC; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PET 21-23C, MAR262-RM.1 KEYWDS NESG, STRUCTURAL GENOMICS, PSI-BIOLOGY, PROTEIN STRUCTURE INITIATIVE, KEYWDS 2 NORTHEAST STRUCTURAL GENOMICS, NORTHEAST STRUCTURAL GENOMICS KEYWDS 3 CONSORTIUM, TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR S.VOROBIEV,H.NEELY,J.SEETHARAMAN,A.SNYDER,P.PATEL,R.XIAO, AUTHOR 2 C.CICCOSANTI,J.K.EVERETT,R.NAIR,T.B.ACTON,B.ROST,G.T.MONTELIONE, AUTHOR 3 J.F.HUNT,L.TONG,NORTHEAST STRUCTURAL GENOMICS CONSORTIUM (NESG) REVDAT 2 28-FEB-24 3SM3 1 REMARK SEQADV LINK REVDAT 1 20-JUL-11 3SM3 0 JRNL AUTH S.VOROBIEV,H.NEELY,J.SEETHARAMAN,A.SNYDER,P.PATEL,R.XIAO, JRNL AUTH 2 C.CICCOSANTI,J.K.EVERETT,R.NAIR,T.B.ACTON,B.ROST, JRNL AUTH 3 G.T.MONTELIONE,J.F.HUNT,L.TONG JRNL TITL CRYSTAL STRUCTURE OF SAM-DEPENDENT METHYLTRANSFERASES JRNL TITL 2 Q8PUK2_METMA FROM METHANOSARCINA MAZEI. JRNL REF TO BE PUBLISHED 2009 JRNL REFN REMARK 2 REMARK 2 RESOLUTION. 2.20 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.6_289 REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : ML REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.20 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 29.82 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.350 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 3 NUMBER OF REFLECTIONS : 27171 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.195 REMARK 3 R VALUE (WORKING SET) : 0.192 REMARK 3 FREE R VALUE : 0.246 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.030 REMARK 3 FREE R VALUE TEST SET COUNT : 1367 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 29.8200 - 4.7280 1.00 2590 124 0.1980 0.2050 REMARK 3 2 4.7280 - 3.7550 1.00 2588 127 0.1490 0.1980 REMARK 3 3 3.7550 - 3.2810 1.00 2591 132 0.1720 0.2590 REMARK 3 4 3.2810 - 2.9820 1.00 2605 125 0.1860 0.2670 REMARK 3 5 2.9820 - 2.7680 1.00 2555 152 0.2020 0.2740 REMARK 3 6 2.7680 - 2.6050 1.00 2562 123 0.2000 0.2890 REMARK 3 7 2.6050 - 2.4750 1.00 2592 163 0.2200 0.2440 REMARK 3 8 2.4750 - 2.3670 1.00 2567 133 0.2380 0.3250 REMARK 3 9 2.3670 - 2.2760 1.00 2571 147 0.2450 0.2630 REMARK 3 10 2.2760 - 2.1970 1.00 2583 141 0.2480 0.2990 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.11 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : 0.35 REMARK 3 B_SOL : 48.91 REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.250 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 23.340 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 37.61 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 45.94 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 5.82200 REMARK 3 B22 (A**2) : 5.82200 REMARK 3 B33 (A**2) : -11.64400 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.008 1743 REMARK 3 ANGLE : 1.151 2349 REMARK 3 CHIRALITY : 0.079 259 REMARK 3 PLANARITY : 0.005 301 REMARK 3 DIHEDRAL : 18.086 637 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : 1 REMARK 3 TLS GROUP : 1 REMARK 3 SELECTION: CHAIN A REMARK 3 ORIGIN FOR THE GROUP (A): 42.7765 13.3895 86.2179 REMARK 3 T TENSOR REMARK 3 T11: 0.1687 T22: 0.1700 REMARK 3 T33: 0.1711 T12: -0.0025 REMARK 3 T13: 0.0025 T23: -0.0108 REMARK 3 L TENSOR REMARK 3 L11: 0.6763 L22: 1.5348 REMARK 3 L33: 0.6851 L12: -0.5272 REMARK 3 L13: -0.0175 L23: -0.2149 REMARK 3 S TENSOR REMARK 3 S11: 0.0053 S12: -0.0322 S13: 0.0539 REMARK 3 S21: 0.0254 S22: 0.0138 S23: 0.0662 REMARK 3 S31: -0.0646 S32: -0.0377 S33: -0.0000 REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 3SM3 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 11-JUL-11. REMARK 100 THE DEPOSITION ID IS D_1000066370. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 17-JUN-11 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : NSLS REMARK 200 BEAMLINE : X4C REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.97908 REMARK 200 MONOCHROMATOR : SI 111 CHANNEL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MAR CCD 165 MM REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 54511 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.197 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 200 DATA REDUNDANCY : 5.500 REMARK 200 R MERGE (I) : 0.10700 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 20.1000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.20 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.28 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 REMARK 200 DATA REDUNDANCY IN SHELL : 5.20 REMARK 200 R MERGE FOR SHELL (I) : 0.72300 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 2.380 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: SAD REMARK 200 SOFTWARE USED: SHELXS REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 51.83 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.55 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 27% PEG 400, 0.2 M CALCIUM CHLORIDE, REMARK 280 5% GLYCEROL, 0.1 M HEPES, PH 7.5 , MICROBATCH CRYSTALLIZATION REMARK 280 UNDER OIL , TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 41 2 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -Y,X,Z+1/4 REMARK 290 4555 Y,-X,Z+3/4 REMARK 290 5555 -X,Y,-Z REMARK 290 6555 X,-Y,-Z+1/2 REMARK 290 7555 Y,X,-Z+3/4 REMARK 290 8555 -Y,-X,-Z+1/4 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 0.00000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 103.51400 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 51.75700 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 155.27100 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 103.51400 REMARK 290 SMTRY1 7 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 155.27100 REMARK 290 SMTRY1 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 51.75700 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 300 REMARK: DIMER,63.21 KD,95.2% 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 REMARK 350 TOTAL BURIED SURFACE AREA: 2900 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 19910 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -52.0 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 103.17800 REMARK 350 BIOMT2 2 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 207.02800 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 MET A 1 REMARK 465 PRO A 2 REMARK 465 GLU A 3 REMARK 465 SER A 4 REMARK 465 TYR A 5 REMARK 465 TRP A 6 REMARK 465 GLU A 7 REMARK 465 LYS A 8 REMARK 465 VAL A 9 REMARK 465 SER A 10 REMARK 465 GLY A 11 REMARK 465 LYS A 12 REMARK 465 ASN A 13 REMARK 465 ILE A 14 REMARK 465 PRO A 15 REMARK 465 SER A 16 REMARK 465 SER A 17 REMARK 465 HIS A 230 REMARK 465 HIS A 231 REMARK 465 HIS A 232 REMARK 465 HIS A 233 REMARK 465 HIS A 234 REMARK 465 HIS A 235 REMARK 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 ARG A 73 CG CD NE CZ NH1 NH2 REMARK 470 GLU A 229 CG CD OE1 OE2 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 SER A 74 131.06 -39.34 REMARK 500 SER A 94 66.60 -150.01 REMARK 500 ARG A 212 -10.16 -48.68 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 CA A 302 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 172 OD1 REMARK 620 2 GLU A 179 OE2 73.7 REMARK 620 3 HOH A 568 O 75.7 78.6 REMARK 620 N 1 2 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 301 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 505 O REMARK 620 2 HOH A 558 O 134.0 REMARK 620 N 1 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 302 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PEG A 401 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: MAR262 RELATED DB: TARGETDB DBREF 3SM3 A 1 227 UNP Q8PUK2 Q8PUK2_METMA 1 227 SEQADV 3SM3 LYS A 51 UNP Q8PUK2 LEU 51 ENGINEERED MUTATION SEQADV 3SM3 LEU A 228 UNP Q8PUK2 EXPRESSION TAG SEQADV 3SM3 GLU A 229 UNP Q8PUK2 EXPRESSION TAG SEQADV 3SM3 HIS A 230 UNP Q8PUK2 EXPRESSION TAG SEQADV 3SM3 HIS A 231 UNP Q8PUK2 EXPRESSION TAG SEQADV 3SM3 HIS A 232 UNP Q8PUK2 EXPRESSION TAG SEQADV 3SM3 HIS A 233 UNP Q8PUK2 EXPRESSION TAG SEQADV 3SM3 HIS A 234 UNP Q8PUK2 EXPRESSION TAG SEQADV 3SM3 HIS A 235 UNP Q8PUK2 EXPRESSION TAG SEQRES 1 A 235 MET PRO GLU SER TYR TRP GLU LYS VAL SER GLY LYS ASN SEQRES 2 A 235 ILE PRO SER SER LEU ASP LEU TYR PRO ILE ILE HIS ASN SEQRES 3 A 235 TYR LEU GLN GLU ASP ASP GLU ILE LEU ASP ILE GLY CYS SEQRES 4 A 235 GLY SER GLY LYS ILE SER LEU GLU LEU ALA SER LYS GLY SEQRES 5 A 235 TYR SER VAL THR GLY ILE ASP ILE ASN SER GLU ALA ILE SEQRES 6 A 235 ARG LEU ALA GLU THR ALA ALA ARG SER PRO GLY LEU ASN SEQRES 7 A 235 GLN LYS THR GLY GLY LYS ALA GLU PHE LYS VAL GLU ASN SEQRES 8 A 235 ALA SER SER LEU SER PHE HIS ASP SER SER PHE ASP PHE SEQRES 9 A 235 ALA VAL MET GLN ALA PHE LEU THR SER VAL PRO ASP PRO SEQRES 10 A 235 LYS GLU ARG SER ARG ILE ILE LYS GLU VAL PHE ARG VAL SEQRES 11 A 235 LEU LYS PRO GLY ALA TYR LEU TYR LEU VAL GLU PHE GLY SEQRES 12 A 235 GLN ASN TRP HIS LEU LYS LEU TYR ARG LYS ARG TYR LEU SEQRES 13 A 235 HIS ASP PHE PRO ILE THR LYS GLU GLU GLY SER PHE LEU SEQRES 14 A 235 ALA ARG ASP PRO GLU THR GLY GLU THR GLU PHE ILE ALA SEQRES 15 A 235 HIS HIS PHE THR GLU LYS GLU LEU VAL PHE LEU LEU THR SEQRES 16 A 235 ASP CYS ARG PHE GLU ILE ASP TYR PHE ARG VAL LYS GLU SEQRES 17 A 235 LEU GLU THR ARG THR GLY ASN LYS ILE LEU GLY PHE VAL SEQRES 18 A 235 ILE ILE ALA GLN LYS LEU LEU GLU HIS HIS HIS HIS HIS SEQRES 19 A 235 HIS HET CA A 301 1 HET CA A 302 1 HET PEG A 401 7 HETNAM CA CALCIUM ION HETNAM PEG DI(HYDROXYETHYL)ETHER FORMUL 2 CA 2(CA 2+) FORMUL 4 PEG C4 H10 O3 FORMUL 5 HOH *94(H2 O) HELIX 1 1 ILE A 23 LEU A 28 1 6 HELIX 2 2 GLY A 42 LYS A 51 1 10 HELIX 3 3 ASN A 61 ALA A 72 1 12 HELIX 4 4 PHE A 110 VAL A 114 5 5 HELIX 5 5 ASP A 116 VAL A 130 1 15 HELIX 6 6 LEU A 148 LYS A 163 1 16 HELIX 7 7 THR A 186 ASP A 196 1 11 SHEET 1 A 7 LYS A 84 VAL A 89 0 SHEET 2 A 7 SER A 54 ASP A 59 1 N GLY A 57 O GLU A 86 SHEET 3 A 7 GLU A 33 ILE A 37 1 N ILE A 34 O THR A 56 SHEET 4 A 7 PHE A 102 GLN A 108 1 O VAL A 106 N LEU A 35 SHEET 5 A 7 LEU A 131 PHE A 142 1 O TYR A 138 N ALA A 105 SHEET 6 A 7 LYS A 216 LYS A 226 -1 O PHE A 220 N GLU A 141 SHEET 7 A 7 PHE A 199 GLU A 210 -1 N LEU A 209 O ILE A 217 SHEET 1 B 2 SER A 167 ARG A 171 0 SHEET 2 B 2 THR A 178 HIS A 183 -1 O PHE A 180 N ALA A 170 LINK OD1 ASP A 172 CA CA A 302 1555 1555 2.82 LINK OE2 GLU A 179 CA CA A 302 1555 1555 3.00 LINK CA CA A 301 O HOH A 505 1555 1555 3.10 LINK CA CA A 301 O HOH A 558 1555 1555 2.82 LINK CA CA A 302 O HOH A 568 1555 1555 3.04 SITE 1 AC1 2 HOH A 505 HOH A 558 SITE 1 AC2 5 ASP A 172 GLU A 179 THR A 213 ASN A 215 SITE 2 AC2 5 HOH A 568 SITE 1 AC3 4 LEU A 150 LYS A 153 ARG A 154 THR A 175 CRYST1 51.589 51.589 207.028 90.00 90.00 90.00 P 41 2 2 8 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 0.019384 0.000000 0.000000 0.00000 SCALE2 0.000000 0.019384 0.000000 0.00000 SCALE3 0.000000 0.000000 0.004830 0.00000