HEADER TRANSFERASE 16-JAN-24 8RPR TITLE CRYSTAL STRUCTURE OF SGVM METHYLTRANSFERASE IN COMPLEX WITH ALPHA- TITLE 2 KETOLEUCINE AND ZN2+ ION COMPND MOL_ID: 1; COMPND 2 MOLECULE: METHYLTRANSFERASE; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: STREPTOMYCES GRISEOVIRIDIS; SOURCE 3 ORGANISM_TAXID: 45398; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 5 EXPRESSION_SYSTEM_TAXID: 469008 KEYWDS COMPLEX, METHYLRANSFERASE, TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR R.SALEEM-BATCHA,Z.ZOU,J.BREILTGENS,M.MUELLER,J.N.ANDEXER REVDAT 2 16-OCT-24 8RPR 1 JRNL REVDAT 1 24-JUL-24 8RPR 0 JRNL AUTH C.SOMMER-KAMANN,J.BREILTGENS,Z.ZOU,S.GERHARDT, JRNL AUTH 2 R.SALEEM-BATCHA,F.KEMPER,O.EINSLE,J.N.ANDEXER,M.MULLER JRNL TITL STRUCTURES AND PROTEIN ENGINEERING OF THE ALPHA-KETO ACID JRNL TITL 2 C-METHYLTRANSFERASES SGVM AND MRSA FOR RATIONAL SUBSTRATE JRNL TITL 3 TRANSFER. JRNL REF CHEMBIOCHEM V. 25 00258 2024 JRNL REFN ESSN 1439-7633 JRNL PMID 38887142 JRNL DOI 10.1002/CBIC.202400258 REMARK 2 REMARK 2 RESOLUTION. 2.14 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.20.1_4487 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 : GEOSTD + MONOMER LIBRARY + CDL V1.2 REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.14 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 47.40 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.340 REMARK 3 COMPLETENESS FOR RANGE (%) : 98.8 REMARK 3 NUMBER OF REFLECTIONS : 43575 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.197 REMARK 3 R VALUE (WORKING SET) : 0.195 REMARK 3 FREE R VALUE : 0.232 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.080 REMARK 3 FREE R VALUE TEST SET COUNT : 2212 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 47.4000 - 5.3800 1.00 2613 146 0.1652 0.1679 REMARK 3 2 5.3800 - 4.2700 1.00 2630 132 0.1519 0.2026 REMARK 3 3 4.2700 - 3.7300 1.00 2594 150 0.1614 0.2141 REMARK 3 4 3.7300 - 3.3900 1.00 2603 171 0.1847 0.2689 REMARK 3 5 3.3900 - 3.1500 1.00 2589 147 0.2356 0.2221 REMARK 3 6 3.1500 - 2.9600 1.00 2641 140 0.2133 0.2032 REMARK 3 7 2.9600 - 2.8100 1.00 2614 117 0.2114 0.2679 REMARK 3 8 2.8100 - 2.6900 1.00 2640 103 0.2296 0.3336 REMARK 3 9 2.6900 - 2.5900 1.00 2612 152 0.2232 0.2744 REMARK 3 10 2.5900 - 2.5000 1.00 2574 147 0.2272 0.2628 REMARK 3 11 2.5000 - 2.4200 0.99 2608 146 0.2225 0.2542 REMARK 3 12 2.4200 - 2.3500 0.99 2625 132 0.2268 0.2505 REMARK 3 13 2.3500 - 2.2900 0.99 2610 128 0.2519 0.3673 REMARK 3 14 2.2900 - 2.2300 0.98 2534 150 0.2917 0.3322 REMARK 3 15 2.2300 - 2.1800 0.97 2552 148 0.3480 0.3253 REMARK 3 16 2.1800 - 2.1400 0.89 2324 103 0.3673 0.3805 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.10 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : NULL REMARK 3 B_SOL : NULL REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.298 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 28.060 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 47.74 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 70.33 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : NULL REMARK 3 B22 (A**2) : NULL REMARK 3 B33 (A**2) : NULL REMARK 3 B12 (A**2) : NULL REMARK 3 B13 (A**2) : NULL REMARK 3 B23 (A**2) : NULL 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 : 0.004 2670 REMARK 3 ANGLE : 0.647 3635 REMARK 3 CHIRALITY : 0.044 403 REMARK 3 PLANARITY : 0.006 489 REMARK 3 DIHEDRAL : 6.009 383 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : 2 REMARK 3 TLS GROUP : 1 REMARK 3 SELECTION: CHAIN 'A' AND (RESID 3 THROUGH 148 ) REMARK 3 ORIGIN FOR THE GROUP (A): -7.9709 -14.7015 6.9557 REMARK 3 T TENSOR REMARK 3 T11: 0.2735 T22: 0.2823 REMARK 3 T33: 0.3050 T12: -0.0141 REMARK 3 T13: -0.0105 T23: -0.0200 REMARK 3 L TENSOR REMARK 3 L11: 1.3955 L22: 1.5959 REMARK 3 L33: 3.0529 L12: 0.2345 REMARK 3 L13: 0.6155 L23: -0.3301 REMARK 3 S TENSOR REMARK 3 S11: 0.0146 S12: -0.1076 S13: 0.0536 REMARK 3 S21: 0.1711 S22: -0.0398 S23: -0.1367 REMARK 3 S31: -0.0646 S32: 0.1369 S33: 0.0243 REMARK 3 TLS GROUP : 2 REMARK 3 SELECTION: CHAIN 'A' AND (RESID 149 THROUGH 339 ) REMARK 3 ORIGIN FOR THE GROUP (A): 6.0963 -30.1276 -10.7450 REMARK 3 T TENSOR REMARK 3 T11: 0.4107 T22: 0.6574 REMARK 3 T33: 0.6121 T12: 0.0842 REMARK 3 T13: -0.0102 T23: -0.0691 REMARK 3 L TENSOR REMARK 3 L11: 2.2899 L22: 3.9669 REMARK 3 L33: 1.8515 L12: -0.5021 REMARK 3 L13: -0.3388 L23: -0.2393 REMARK 3 S TENSOR REMARK 3 S11: -0.0460 S12: -0.0129 S13: -0.2186 REMARK 3 S21: 0.1510 S22: 0.0284 S23: -1.0421 REMARK 3 S31: 0.1659 S32: 0.8062 S33: 0.0206 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 8RPR COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 17-JAN-24. REMARK 100 THE DEPOSITION ID IS D_1292135951. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 04-SEP-23 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SLS REMARK 200 BEAMLINE : X06SA REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.2802 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS EIGER2 X 16M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : SCALA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 43575 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.140 REMARK 200 RESOLUTION RANGE LOW (A) : 47.400 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.1 REMARK 200 DATA REDUNDANCY : 24.20 REMARK 200 R MERGE (I) : 0.08000 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 21.9000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.14 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.25 REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 1.38000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 55.77 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.78 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 100 MM TRIS/HCL PH 8.5, 250 MM LI2SO4, REMARK 280 AND 23% PEG 3350, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 295K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 43 21 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+1/2,X+1/2,Z+3/4 REMARK 290 4555 Y+1/2,-X+1/2,Z+1/4 REMARK 290 5555 -X+1/2,Y+1/2,-Z+3/4 REMARK 290 6555 X+1/2,-Y+1/2,-Z+1/4 REMARK 290 7555 Y,X,-Z REMARK 290 8555 -Y,-X,-Z+1/2 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 91.37250 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 33.51550 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 33.51550 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 137.05875 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 33.51550 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 33.51550 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 45.68625 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 33.51550 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 33.51550 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 137.05875 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 33.51550 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 33.51550 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 45.68625 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 0.00000 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 91.37250 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 REMARK 350 TOTAL BURIED SURFACE AREA: 9700 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 26230 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -219.0 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 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 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 MET A 1 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 GLU A 81 70.49 -117.35 REMARK 500 PHE A 149 -23.47 -146.82 REMARK 500 GLU A 218 70.74 -102.59 REMARK 500 PRO A 228 32.12 -90.37 REMARK 500 TYR A 279 69.70 39.72 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 407 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ILE A 15 O REMARK 620 2 GLY A 19 O 111.9 REMARK 620 3 HOH A 560 O 113.7 114.7 REMARK 620 4 HOH A 604 O 102.8 99.3 113.0 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 404 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 23 OD2 REMARK 620 2 ARG A 284 O 39.3 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 406 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ALA A 64 O REMARK 620 2 TYR A 294 OH 122.3 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 405 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 147 O REMARK 620 2 HOH A 505 O 28.3 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 ZN A 408 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 244 NE2 REMARK 620 2 HIS A 296 NE2 94.2 REMARK 620 3 COI A 401 O2 168.0 89.5 REMARK 620 4 COI A 401 O3 89.1 86.9 79.7 REMARK 620 5 HOH A 521 O 103.6 94.9 87.4 166.9 REMARK 620 6 HOH A 563 O 88.7 169.2 85.7 82.6 94.6 REMARK 620 N 1 2 3 4 5 DBREF 8RPR A 1 339 UNP R9UTR3 R9UTR3_STRGD 1 339 SEQRES 1 A 339 MET ALA THR HIS ASP ILE ALA ALA GLN HIS LEU ALA ASP SEQRES 2 A 339 GLY ILE ALA ALA SER GLY PRO ALA PRO ASP LEU ALA ALA SEQRES 3 A 339 ALA ALA ALA PHE LEU GLU MET GLY ASP ARG LEU GLY VAL SEQRES 4 A 339 VAL ALA HIS LEU ASP PRO ASP ARG THR LEU GLU THR ALA SEQRES 5 A 339 GLU VAL ALA ALA ALA LEU ASP LEU PRO GLU PRO ALA LEU SEQRES 6 A 339 VAL ARG TYR LEU ASP ALA VAL GLU SER ALA GLY LEU VAL SEQRES 7 A 339 ILE ARG GLU GLY GLU GLY ARG TYR ARG ALA CYS PRO ASP SEQRES 8 A 339 PHE ASP THR ILE ARG HIS GLN ALA GLY TYR ILE SER TRP SEQRES 9 A 339 THR MET ASN ALA ASN ARG PRO PHE ILE GLU ASN ALA ARG SEQRES 10 A 339 ASP PHE PHE THR ASP TRP ASP LYS ALA ALA ARG THR HIS SEQRES 11 A 339 VAL ARG ASP TYR ARG GLU VAL ALA VAL SER SER GLN TRP SEQRES 12 A 339 MET GLY SER HIS ALA PHE TYR PRO THR ALA LEU ALA THR SEQRES 13 A 339 ILE ILE ASP ALA ALA PRO ARG LYS VAL VAL ASP LEU GLY SEQRES 14 A 339 ALA GLY THR CYS ARG LEU LEU ILE GLU VAL LEU GLY ALA SEQRES 15 A 339 VAL PRO GLY SER THR GLY VAL GLY LEU ASP PHE ALA ALA SEQRES 16 A 339 ASP ALA CYS ARG ALA ALA GLU GLN ALA VAL ALA GLN ALA SEQRES 17 A 339 GLY MET THR ASP ARG LEU THR VAL VAL GLU ARG THR ILE SEQRES 18 A 339 GLN SER VAL ALA THR ASP PRO GLY VAL LEU GLU GLY ALA SEQRES 19 A 339 ASP VAL ILE HIS ALA GLY PHE VAL PHE HIS ASP MET LEU SEQRES 20 A 339 PRO GLU GLU GLU ASP VAL CYS ASP GLN VAL LEU ALA ASN SEQRES 21 A 339 CYS ARG GLU SER LEU ALA PRO GLY GLY PHE LEU ALA ILE SEQRES 22 A 339 THR ASP ALA VAL PRO TYR LEU ARG ASN ASP ARG GLU ARG SEQRES 23 A 339 ARG PHE SER ALA ALA VAL SER TYR TYR HIS GLY GLU PHE SEQRES 24 A 339 MET ARG ARG ARG LEU GLN SER GLU GLU GLU TRP VAL GLU SEQRES 25 A 339 ARG LEU ARG GLY ALA GLY PHE SER ASP VAL ARG ALA LEU SEQRES 26 A 339 THR LEU ALA PHE PRO THR GLY ARG LEU PHE LEU ALA HIS SEQRES 27 A 339 ARG HET COI A 401 9 HET CL A 402 1 HET MG A 403 1 HET MG A 404 1 HET MG A 405 1 HET MG A 406 1 HET MG A 407 1 HET ZN A 408 1 HETNAM COI 2-OXO-4-METHYLPENTANOIC ACID HETNAM CL CHLORIDE ION HETNAM MG MAGNESIUM ION HETNAM ZN ZINC ION HETSYN COI ALPHA-KETOISOCAPROIC ACID FORMUL 2 COI C6 H10 O3 FORMUL 3 CL CL 1- FORMUL 4 MG 5(MG 2+) FORMUL 9 ZN ZN 2+ FORMUL 10 HOH *109(H2 O) HELIX 1 AA1 ALA A 2 GLY A 19 1 18 HELIX 2 AA2 PRO A 20 GLY A 38 1 19 HELIX 3 AA3 VAL A 39 LEU A 43 5 5 HELIX 4 AA4 THR A 51 LEU A 58 1 8 HELIX 5 AA5 PRO A 61 ALA A 75 1 15 HELIX 6 AA6 ASP A 91 ASN A 107 1 17 HELIX 7 AA7 ASN A 109 ASN A 115 1 7 HELIX 8 AA8 ASN A 115 ASP A 122 1 8 HELIX 9 AA9 ASP A 122 HIS A 130 1 9 HELIX 10 AB1 ASP A 133 PHE A 149 1 17 HELIX 11 AB2 PHE A 149 ALA A 160 1 12 HELIX 12 AB3 CYS A 173 GLY A 181 1 9 HELIX 13 AB4 ALA A 194 GLY A 209 1 16 HELIX 14 AB5 ILE A 221 ALA A 225 5 5 HELIX 15 AB6 VAL A 242 LEU A 247 5 6 HELIX 16 AB7 GLU A 250 LEU A 265 1 16 HELIX 17 AB8 GLU A 285 PHE A 299 1 15 HELIX 18 AB9 SER A 306 ALA A 317 1 12 SHEET 1 AA1 3 THR A 48 GLU A 50 0 SHEET 2 AA1 3 ARG A 85 ALA A 88 -1 O TYR A 86 N LEU A 49 SHEET 3 AA1 3 VAL A 78 ARG A 80 -1 N ILE A 79 O ARG A 87 SHEET 1 AA2 7 LEU A 214 THR A 215 0 SHEET 2 AA2 7 THR A 187 LEU A 191 1 N GLY A 188 O THR A 215 SHEET 3 AA2 7 LYS A 164 LEU A 168 1 N ASP A 167 O VAL A 189 SHEET 4 AA2 7 VAL A 236 GLY A 240 1 O HIS A 238 N VAL A 166 SHEET 5 AA2 7 PHE A 270 ALA A 276 1 O ALA A 272 N ILE A 237 SHEET 6 AA2 7 GLY A 332 HIS A 338 -1 O PHE A 335 N ILE A 273 SHEET 7 AA2 7 ASP A 321 THR A 326 -1 N ARG A 323 O LEU A 336 LINK O ALA A 12 MG MG A 403 1555 1555 2.88 LINK O ILE A 15 MG MG A 407 1555 1555 2.89 LINK O GLY A 19 MG MG A 407 1555 1555 2.73 LINK OD2 ASP A 23 MG MG A 404 1555 1555 2.78 LINK O ALA A 64 MG MG A 406 1555 1555 2.72 LINK O HIS A 147 MG MG A 405 1555 7555 2.96 LINK NE2 HIS A 244 ZN ZN A 408 1555 1555 2.28 LINK O ARG A 284 MG MG A 404 1555 7555 2.91 LINK OH TYR A 294 MG MG A 406 1555 7555 2.69 LINK NE2 HIS A 296 ZN ZN A 408 1555 1555 2.26 LINK O2 COI A 401 ZN ZN A 408 1555 1555 2.20 LINK O3 COI A 401 ZN ZN A 408 1555 1555 2.10 LINK MG MG A 405 O HOH A 505 1555 7555 2.45 LINK MG MG A 407 O HOH A 560 1555 7555 2.68 LINK MG MG A 407 O HOH A 604 1555 1555 2.46 LINK ZN ZN A 408 O HOH A 521 1555 1555 2.27 LINK ZN ZN A 408 O HOH A 563 1555 1555 2.21 CISPEP 1 LEU A 247 PRO A 248 0 3.45 CRYST1 67.031 67.031 182.745 90.00 90.00 90.00 P 43 21 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 0.014918 0.000000 0.000000 0.00000 SCALE2 0.000000 0.014918 0.000000 0.00000 SCALE3 0.000000 0.000000 0.005472 0.00000