PDB Short entry for 1AH5 HEADER TRANSFERASE 13-APR-97 1AH5 TITLE REDUCED FORM SELENOMETHIONINE-LABELLED HYDROXYMETHYLBILANE SYNTHASE TITLE 2 DETERMINED BY MAD COMPND MOL_ID: 1; COMPND 2 MOLECULE: HYDROXYMETHYLBILANE SYNTHASE; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: THREE DOMAINS; COMPND 5 SYNONYM: PORPHOBILINOGEN DEAMINASE; COMPND 6 EC: 2.5.1.61; COMPND 7 ENGINEERED: YES; COMPND 8 OTHER_DETAILS: CONTAINS A DIPYRROMETHANE COFACTOR LINKED TO THE COMPND 9 RESIDUE CYSTEINE 242 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 KEYWDS BIOSYNTHESIS OF LINEAR TETRAPYRROLE, ALL ALPHA/BETA, TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR J.R.HELLIWELL,Y.P.NIEH,S.J.HARROP,A.CASSETTA REVDAT 5 18-SEP-13 1AH5 1 FORMUL HETNAM VERSN REVDAT 4 27-APR-11 1AH5 1 COMPND HEADER REVDAT 3 24-FEB-09 1AH5 1 VERSN REVDAT 2 01-APR-03 1AH5 1 JRNL REVDAT 1 15-OCT-97 1AH5 0 JRNL AUTH A.HADENER,P.K.MATZINGER,A.R.BATTERSBY,S.MCSWEENEY, JRNL AUTH 2 A.W.THOMPSON,A.P.HAMMERSLEY,S.J.HARROP,A.CASSETTA,A.DEACON, JRNL AUTH 3 W.N.HUNTER,Y.P.NIEH,J.RAFTERY,N.HUNTER,J.R.HELLIWELL JRNL TITL DETERMINATION OF THE STRUCTURE OF SELENO-METHIONINE-LABELLED JRNL TITL 2 HYDROXYMETHYLBILANE SYNTHASE IN ITS ACTIVE FORM BY JRNL TITL 3 MULTI-WAVELENGTH ANOMALOUS DISPERSION. JRNL REF ACTA CRYSTALLOGR.,SECT.D V. 55 631 1999 JRNL REFN ISSN 0907-4449 JRNL PMID 10089459 JRNL DOI 10.1107/S0907444998014711 REMARK 2 REMARK 2 RESOLUTION. 2.40 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.1 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.40 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 8.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 99.6 REMARK 3 NUMBER OF REFLECTIONS : 13486 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.168 REMARK 3 FREE R VALUE : 0.235 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.000 REMARK 3 FREE R VALUE TEST SET COUNT : 1374 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.40 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.44 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 98.40 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 560 REMARK 3 BIN R VALUE (WORKING SET) : 0.2027 REMARK 3 BIN FREE R VALUE : 0.2964 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 10.40 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 56 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2268 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 30 REMARK 3 SOLVENT ATOMS : 177 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 19.60 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 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.20 REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.35 REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.009 REMARK 3 BOND ANGLES (DEGREES) : 1.75 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 23.46 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.43 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 REMARK 3 NCS MODEL : NULL REMARK 3 REMARK 3 NCS RESTRAINTS. RMS SIGMA/WEIGHT REMARK 3 GROUP 1 POSITIONAL (A) : NULL ; NULL REMARK 3 GROUP 1 B-FACTOR (A**2) : NULL ; NULL REMARK 3 REMARK 3 PARAMETER FILE 1 : PARHCSDX.PRO REMARK 3 PARAMETER FILE 2 : NULL REMARK 3 PARAMETER FILE 3 : NULL REMARK 3 TOPOLOGY FILE 1 : TOPHCSDX.PRO REMARK 3 TOPOLOGY FILE 2 : NULL REMARK 3 TOPOLOGY FILE 3 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1AH5 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : JUL-93 REMARK 200 TEMPERATURE (KELVIN) : 293 REMARK 200 PH : 5.3 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SRS REMARK 200 BEAMLINE : PX9.5 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9 REMARK 200 MONOCHROMATOR : SI(111) REMARK 200 OPTICS : TOROIDAL MIRROR REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : CCP4 (AGROVATA, ROTAVATA) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 13486 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.400 REMARK 200 RESOLUTION RANGE LOW (A) : 8.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.0 REMARK 200 DATA REDUNDANCY : 4.000 REMARK 200 R MERGE (I) : 0.05400 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 11.4000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.40 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.46 REMARK 200 COMPLETENESS FOR SHELL (%) : 98.0 REMARK 200 DATA REDUNDANCY IN SHELL : 3.50 REMARK 200 R MERGE FOR SHELL (I) : 0.13400 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 5.400 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD REMARK 200 SOFTWARE USED: MLPHARE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 50.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.51 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PROTEIN WAS CRYSTALLISED AT PH 5.3 IN REMARK 280 SITTING DROPS OF 0.05ML WITH 6-7MG/ML OF PROTEIN, 0.3MM EDTA, REMARK 280 15MM DITHIOTHREITOL, 10%(W/V) PEG6000 AND 0.01% NAN3 IN 0.1M REMARK 280 NAAC., VAPOR DIFFUSION - SITTING DROP REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z REMARK 290 3555 -X+1/2,Y+1/2,-Z REMARK 290 4555 X+1/2,-Y+1/2,-Z 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 0.00000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 44.23500 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 38.07500 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 44.23500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 38.07500 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 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: MONOMERIC 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 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 LEU A 2 REMARK 465 VAL A 47 REMARK 465 ILE A 48 REMARK 465 LEU A 49 REMARK 465 ASP A 50 REMARK 465 THR A 51 REMARK 465 PRO A 52 REMARK 465 LEU A 53 REMARK 465 ALA A 54 REMARK 465 LYS A 55 REMARK 465 VAL A 56 REMARK 465 GLY A 57 REMARK 465 GLY A 58 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 LEU A 61 CG CD1 CD2 REMARK 470 PHE A 62 CG CD1 CD2 CE1 CE2 CZ 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 ASN A 4 -1.49 61.97 REMARK 500 MSE A 41 -100.40 -111.74 REMARK 500 VAL A 42 159.82 143.35 REMARK 500 THR A 127 141.86 -177.65 REMARK 500 ASN A 308 82.98 52.08 REMARK 500 REMARK 500 REMARK: NULL REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A 392 DISTANCE = 5.13 ANGSTROMS REMARK 525 HOH A 457 DISTANCE = 5.02 ANGSTROMS REMARK 525 HOH A 467 DISTANCE = 6.38 ANGSTROMS REMARK 525 HOH A 500 DISTANCE = 5.14 ANGSTROMS REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DPM A 314 DBREF 1AH5 A 1 313 UNP P06983 HEM3_ECOLI 1 313 SEQADV 1AH5 MSE A 28 UNP P06983 MET 28 MODIFIED RESIDUE SEQADV 1AH5 MSE A 41 UNP P06983 MET 41 MODIFIED RESIDUE SEQADV 1AH5 MSE A 82 UNP P06983 MET 82 MODIFIED RESIDUE SEQADV 1AH5 MSE A 234 UNP P06983 MET 234 MODIFIED RESIDUE SEQADV 1AH5 MSE A 286 UNP P06983 MET 286 MODIFIED RESIDUE SEQRES 1 A 313 MET LEU ASP ASN VAL LEU ARG ILE ALA THR ARG GLN SER SEQRES 2 A 313 PRO LEU ALA LEU TRP GLN ALA HIS TYR VAL LYS ASP LYS SEQRES 3 A 313 LEU MSE ALA SER HIS PRO GLY LEU VAL VAL GLU LEU VAL SEQRES 4 A 313 PRO MSE VAL THR ARG GLY ASP VAL ILE LEU ASP THR PRO SEQRES 5 A 313 LEU ALA LYS VAL GLY GLY LYS GLY LEU PHE VAL LYS GLU SEQRES 6 A 313 LEU GLU VAL ALA LEU LEU GLU ASN ARG ALA ASP ILE ALA SEQRES 7 A 313 VAL HIS SER MSE LYS ASP VAL PRO VAL GLU PHE PRO GLN SEQRES 8 A 313 GLY LEU GLY LEU VAL THR ILE CYS GLU ARG GLU ASP PRO SEQRES 9 A 313 ARG ASP ALA PHE VAL SER ASN ASN TYR ASP SER LEU ASP SEQRES 10 A 313 ALA LEU PRO ALA GLY SER ILE VAL GLY THR SER SER LEU SEQRES 11 A 313 ARG ARG GLN CYS GLN LEU ALA GLU ARG ARG PRO ASP LEU SEQRES 12 A 313 ILE ILE ARG SER LEU ARG GLY ASN VAL GLY THR ARG LEU SEQRES 13 A 313 SER LYS LEU ASP ASN GLY GLU TYR ASP ALA ILE ILE LEU SEQRES 14 A 313 ALA VAL ALA GLY LEU LYS ARG LEU GLY LEU GLU SER ARG SEQRES 15 A 313 ILE ARG ALA ALA LEU PRO PRO GLU ILE SER LEU PRO ALA SEQRES 16 A 313 VAL GLY GLN GLY ALA VAL GLY ILE GLU CYS ARG LEU ASP SEQRES 17 A 313 ASP SER ARG THR ARG GLU LEU LEU ALA ALA LEU ASN HIS SEQRES 18 A 313 HIS GLU THR ALA LEU ARG VAL THR ALA GLU ARG ALA MSE SEQRES 19 A 313 ASN THR ARG LEU GLU GLY GLY CYS GLN VAL PRO ILE GLY SEQRES 20 A 313 SER TYR ALA GLU LEU ILE ASP GLY GLU ILE TRP LEU ARG SEQRES 21 A 313 ALA LEU VAL GLY ALA PRO ASP GLY SER GLN ILE ILE ARG SEQRES 22 A 313 GLY GLU ARG ARG GLY ALA PRO GLN ASP ALA GLU GLN MSE SEQRES 23 A 313 GLY ILE SER LEU ALA GLU GLU LEU LEU ASN ASN GLY ALA SEQRES 24 A 313 ARG GLU ILE LEU ALA GLU VAL TYR ASN GLY ASP ALA PRO SEQRES 25 A 313 ALA MODRES 1AH5 MSE A 28 MET SELENOMETHIONINE MODRES 1AH5 MSE A 41 MET SELENOMETHIONINE MODRES 1AH5 MSE A 82 MET SELENOMETHIONINE MODRES 1AH5 MSE A 234 MET SELENOMETHIONINE MODRES 1AH5 MSE A 286 MET SELENOMETHIONINE HET MSE A 28 8 HET MSE A 41 8 HET MSE A 82 8 HET MSE A 234 8 HET MSE A 286 8 HET DPM A 314 30 HETNAM MSE SELENOMETHIONINE HETNAM DPM 3-[5-{[3-(2-CARBOXYETHYL)-4-(CARBOXYMETHYL)-5-METHYL- HETNAM 2 DPM 1H-PYRROL-2-YL]METHYL}-4-(CARBOXYMETHYL)-1H-PYRROL-3- HETNAM 3 DPM YL]PROPANOIC ACID HETSYN DPM DIPYRROMETHANE COFACTOR FORMUL 1 MSE 5(C5 H11 N O2 SE) FORMUL 2 DPM C20 H24 N2 O8 FORMUL 3 HOH *177(H2 O) HELIX 1 1 PRO A 14 SER A 30 1 17 HELIX 2 2 LYS A 64 LEU A 71 1 8 HELIX 3 3 LEU A 130 ARG A 139 1 10 HELIX 4 4 VAL A 152 ASP A 160 1 9 HELIX 5 5 VAL A 171 ARG A 176 1 6 HELIX 6 6 GLU A 180 ARG A 182 5 3 HELIX 7 7 SER A 210 LEU A 219 1 10 HELIX 8 8 HIS A 222 THR A 236 1 15 HELIX 9 9 PRO A 280 ASP A 282 5 3 HELIX 10 10 GLU A 284 ASN A 297 5 14 HELIX 11 11 ALA A 299 TYR A 307 1 9 SHEET 1 A 2 VAL A 5 ALA A 9 0 SHEET 2 A 2 VAL A 35 VAL A 39 1 N VAL A 35 O LEU A 6 SHEET 1 B 3 ILE A 77 HIS A 80 0 SHEET 2 B 3 GLY A 202 ARG A 206 -1 N GLU A 204 O ALA A 78 SHEET 3 B 3 LEU A 93 ILE A 98 -1 N THR A 97 O ILE A 203 SHEET 1 C 3 ALA A 166 ALA A 170 0 SHEET 2 C 3 ASP A 106 SER A 110 -1 N VAL A 109 O ILE A 167 SHEET 3 C 3 ILE A 183 ALA A 186 -1 N ALA A 185 O PHE A 108 SHEET 1 D 2 ILE A 124 GLY A 126 0 SHEET 2 D 2 ILE A 144 ARG A 146 1 N ILE A 144 O VAL A 125 SHEET 1 E 3 ILE A 246 ILE A 253 0 SHEET 2 E 3 GLU A 256 GLY A 264 -1 N LEU A 262 O GLY A 247 SHEET 3 E 3 ILE A 271 ALA A 279 -1 N GLY A 278 O ILE A 257 LINK N MSE A 28 C LEU A 27 1555 1555 1.33 LINK C MSE A 28 N ALA A 29 1555 1555 1.32 LINK N MSE A 41 C PRO A 40 1555 1555 1.33 LINK C MSE A 41 N VAL A 42 1555 1555 1.34 LINK N MSE A 82 C SER A 81 1555 1555 1.33 LINK C MSE A 82 N LYS A 83 1555 1555 1.34 LINK N MSE A 234 C ALA A 233 1555 1555 1.33 LINK C MSE A 234 N ASN A 235 1555 1555 1.34 LINK N MSE A 286 C GLN A 285 1555 1555 1.33 LINK C MSE A 286 N GLY A 287 1555 1555 1.33 LINK CHA DPM A 314 SG CYS A 242 1555 1555 1.81 SITE 1 AC1 22 LEU A 15 SER A 81 LYS A 83 ASP A 84 SITE 2 AC1 22 THR A 127 SER A 128 SER A 129 ARG A 131 SITE 3 AC1 22 ARG A 132 LEU A 148 ARG A 155 LEU A 169 SITE 4 AC1 22 ALA A 170 GLN A 198 GLY A 199 CYS A 242 SITE 5 AC1 22 GLN A 243 HOH A 351 HOH A 373 HOH A 422 SITE 6 AC1 22 HOH A 445 HOH A 454 CRYST1 88.470 76.150 50.790 90.00 90.00 90.00 P 21 21 2 4 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 0.011303 0.000000 0.000000 0.00000 SCALE2 0.000000 0.013132 0.000000 0.00000 SCALE3 0.000000 0.000000 0.019689 0.00000