PDB Short entry for 2FR1 HEADER OXIDOREDUCTASE 18-JAN-06 2FR1 TITLE THE FIRST KETOREDUCTASE OF THE ERYTHROMYCIN SYNTHASE (CRYSTAL FORM 2) COMPND MOL_ID: 1; COMPND 2 MOLECULE: ERYTHROMYCIN SYNTHASE, ERYAI; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: RESIDUES 1444-1925; COMPND 5 EC: 1.1.1.100; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SACCHAROPOLYSPORA ERYTHRAEA; SOURCE 3 ORGANISM_TAXID: 1836; SOURCE 4 GENE: ERYAI; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 6 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET28B KEYWDS SHORT CHAIN DEHYDROGENASE/REDUCTASE, OXIDOREDUCTASE EXPDTA X-RAY DIFFRACTION AUTHOR A.T.KEATINGE-CLAY,R.M.STROUD REVDAT 5 03-APR-24 2FR1 1 REMARK REVDAT 4 14-FEB-24 2FR1 1 REMARK SEQADV REVDAT 3 24-FEB-09 2FR1 1 VERSN REVDAT 2 02-MAY-06 2FR1 1 JRNL REVDAT 1 04-APR-06 2FR1 0 JRNL AUTH A.T.KEATINGE-CLAY,R.M.STROUD JRNL TITL THE STRUCTURE OF A KETOREDUCTASE DETERMINES THE ORGANIZATION JRNL TITL 2 OF THE BETA-CARBON PROCESSING ENZYMES OF MODULAR POLYKETIDE JRNL TITL 3 SYNTHASES JRNL REF STRUCTURE V. 14 737 2006 JRNL REFN ISSN 0969-2126 JRNL PMID 16564177 JRNL DOI 10.1016/J.STR.2006.01.009 REMARK 2 REMARK 2 RESOLUTION. 1.79 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS REMARK 3 AUTHORS : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE- REMARK 3 : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU, REMARK 3 : READ,RICE,SIMONSON,WARREN REMARK 3 REMARK 3 REFINEMENT TARGET : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.79 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 42.14 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 94.2 REMARK 3 NUMBER OF REFLECTIONS : 36130 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) : 0.227 REMARK 3 FREE R VALUE : 0.257 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 3613 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 : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL 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 : 3390 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 48 REMARK 3 SOLVENT ATOMS : 236 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL 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) : NULL 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) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.007 REMARK 3 BOND ANGLES (DEGREES) : 1.200 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL 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 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : 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 : PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 2 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 3 : NADPH.PARAM REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 TOPOLOGY FILE 2 : NULL REMARK 3 TOPOLOGY FILE 3 : NULL REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2FR1 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 20-JAN-06. REMARK 100 THE DEPOSITION ID IS D_1000036208. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 22-MAY-05 REMARK 200 TEMPERATURE (KELVIN) : 200 REMARK 200 PH : 7.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ALS REMARK 200 BEAMLINE : 8.3.1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.1159 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 36130 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.790 REMARK 200 RESOLUTION RANGE LOW (A) : 42.140 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 94.2 REMARK 200 DATA REDUNDANCY : 1.800 REMARK 200 R MERGE (I) : 0.06100 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 8.1000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.79 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.87 REMARK 200 COMPLETENESS FOR SHELL (%) : 84.7 REMARK 200 DATA REDUNDANCY IN SHELL : 1.60 REMARK 200 R MERGE FOR SHELL (I) : 0.32000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 2.000 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: SAD REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: AB INITIO REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 40.16 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.06 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 1.5 MG/ML, 5.05 MM HEPES, 75 MM NACL, REMARK 280 0.5 MM DTT, 17.5% PEG3350, 0.1 M GUANIDINIUM HYDROCHLORIDE, PH REMARK 280 7.0, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 295K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,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 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA 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 GLY A 1440 REMARK 465 SER A 1441 REMARK 465 HIS A 1442 REMARK 465 MET A 1443 REMARK 465 SER A 1444 REMARK 465 THR A 1445 REMARK 465 GLU A 1446 REMARK 465 VAL A 1447 REMARK 465 GLY A 1844 REMARK 465 SER A 1845 REMARK 465 GLY A 1846 REMARK 465 MET A 1847 REMARK 465 ALA A 1848 REMARK 465 GLU A 1849 REMARK 465 GLY A 1850 REMARK 465 PRO A 1851 REMARK 465 VAL A 1852 REMARK 465 ALA A 1853 REMARK 465 ASP A 1854 REMARK 465 ARG A 1855 REMARK 465 ALA A 1916 REMARK 465 ALA A 1917 REMARK 465 PRO A 1918 REMARK 465 GLN A 1919 REMARK 465 ALA A 1920 REMARK 465 ALA A 1921 REMARK 465 ALA A 1922 REMARK 465 GLU A 1923 REMARK 465 PRO A 1924 REMARK 465 ARG A 1925 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 A1466 120.06 63.01 REMARK 500 ARG A1469 -177.13 48.96 REMARK 500 GLU A1541 -63.92 66.25 REMARK 500 ALA A1622 8.54 -69.65 REMARK 500 ASP A1757 -154.29 -142.45 REMARK 500 ASP A1758 9.52 -170.13 REMARK 500 ALA A1834 148.38 -173.32 REMARK 500 ARG A1857 -74.17 -48.23 REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NDP A 301 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2FR0 RELATED DB: PDB REMARK 900 THE FIRST KETOREDUCTASE OF THE ERYTHROMYCIN SYNTHASE (CRYSTAL FORM REMARK 900 1) DBREF 2FR1 A 1444 1925 UNP Q03131 ERYA1_SACER 1391 1872 SEQADV 2FR1 GLY A 1440 UNP Q03131 CLONING ARTIFACT SEQADV 2FR1 SER A 1441 UNP Q03131 CLONING ARTIFACT SEQADV 2FR1 HIS A 1442 UNP Q03131 CLONING ARTIFACT SEQADV 2FR1 MET A 1443 UNP Q03131 CLONING ARTIFACT SEQRES 1 A 486 GLY SER HIS MET SER THR GLU VAL ASP GLU VAL SER ALA SEQRES 2 A 486 LEU ARG TYR ARG ILE GLU TRP ARG PRO THR GLY ALA GLY SEQRES 3 A 486 GLU PRO ALA ARG LEU ASP GLY THR TRP LEU VAL ALA LYS SEQRES 4 A 486 TYR ALA GLY THR ALA ASP GLU THR SER THR ALA ALA ARG SEQRES 5 A 486 GLU ALA LEU GLU SER ALA GLY ALA ARG VAL ARG GLU LEU SEQRES 6 A 486 VAL VAL ASP ALA ARG CYS GLY ARG ASP GLU LEU ALA GLU SEQRES 7 A 486 ARG LEU ARG SER VAL GLY GLU VAL ALA GLY VAL LEU SER SEQRES 8 A 486 LEU LEU ALA VAL ASP GLU ALA GLU PRO GLU GLU ALA PRO SEQRES 9 A 486 LEU ALA LEU ALA SER LEU ALA ASP THR LEU SER LEU VAL SEQRES 10 A 486 GLN ALA MET VAL SER ALA GLU LEU GLY CYS PRO LEU TRP SEQRES 11 A 486 THR VAL THR GLU SER ALA VAL ALA THR GLY PRO PHE GLU SEQRES 12 A 486 ARG VAL ARG ASN ALA ALA HIS GLY ALA LEU TRP GLY VAL SEQRES 13 A 486 GLY ARG VAL ILE ALA LEU GLU ASN PRO ALA VAL TRP GLY SEQRES 14 A 486 GLY LEU VAL ASP VAL PRO ALA GLY SER VAL ALA GLU LEU SEQRES 15 A 486 ALA ARG HIS LEU ALA ALA VAL VAL SER GLY GLY ALA GLY SEQRES 16 A 486 GLU ASP GLN LEU ALA LEU ARG ALA ASP GLY VAL TYR GLY SEQRES 17 A 486 ARG ARG TRP VAL ARG ALA ALA ALA PRO ALA THR ASP ASP SEQRES 18 A 486 GLU TRP LYS PRO THR GLY THR VAL LEU VAL THR GLY GLY SEQRES 19 A 486 THR GLY GLY VAL GLY GLY GLN ILE ALA ARG TRP LEU ALA SEQRES 20 A 486 ARG ARG GLY ALA PRO HIS LEU LEU LEU VAL SER ARG SER SEQRES 21 A 486 GLY PRO ASP ALA ASP GLY ALA GLY GLU LEU VAL ALA GLU SEQRES 22 A 486 LEU GLU ALA LEU GLY ALA ARG THR THR VAL ALA ALA CYS SEQRES 23 A 486 ASP VAL THR ASP ARG GLU SER VAL ARG GLU LEU LEU GLY SEQRES 24 A 486 GLY ILE GLY ASP ASP VAL PRO LEU SER ALA VAL PHE HIS SEQRES 25 A 486 ALA ALA ALA THR LEU ASP ASP GLY THR VAL ASP THR LEU SEQRES 26 A 486 THR GLY GLU ARG ILE GLU ARG ALA SER ARG ALA LYS VAL SEQRES 27 A 486 LEU GLY ALA ARG ASN LEU HIS GLU LEU THR ARG GLU LEU SEQRES 28 A 486 ASP LEU THR ALA PHE VAL LEU PHE SER SER PHE ALA SER SEQRES 29 A 486 ALA PHE GLY ALA PRO GLY LEU GLY GLY TYR ALA PRO GLY SEQRES 30 A 486 ASN ALA TYR LEU ASP GLY LEU ALA GLN GLN ARG ARG SER SEQRES 31 A 486 ASP GLY LEU PRO ALA THR ALA VAL ALA TRP GLY THR TRP SEQRES 32 A 486 ALA GLY SER GLY MET ALA GLU GLY PRO VAL ALA ASP ARG SEQRES 33 A 486 PHE ARG ARG HIS GLY VAL ILE GLU MET PRO PRO GLU THR SEQRES 34 A 486 ALA CYS ARG ALA LEU GLN ASN ALA LEU ASP ARG ALA GLU SEQRES 35 A 486 VAL CYS PRO ILE VAL ILE ASP VAL ARG TRP ASP ARG PHE SEQRES 36 A 486 LEU LEU ALA TYR THR ALA GLN ARG PRO THR ARG LEU PHE SEQRES 37 A 486 ASP GLU ILE ASP ASP ALA ARG ARG ALA ALA PRO GLN ALA SEQRES 38 A 486 ALA ALA GLU PRO ARG HET NDP A 301 48 HETNAM NDP NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE HETNAM 2 NDP PHOSPHATE FORMUL 2 NDP C21 H30 N7 O17 P3 FORMUL 3 HOH *236(H2 O) HELIX 1 1 GLU A 1449 ALA A 1452 5 4 HELIX 2 2 ALA A 1483 SER A 1496 1 14 HELIX 3 3 GLY A 1511 ARG A 1520 1 10 HELIX 4 4 ALA A 1542 ALA A 1545 5 4 HELIX 5 5 LEU A 1546 ALA A 1562 1 17 HELIX 6 6 ASN A 1586 ALA A 1588 5 3 HELIX 7 7 HIS A 1589 ASN A 1603 1 15 HELIX 8 8 GLU A 1620 SER A 1630 1 11 HELIX 9 9 GLY A 1675 GLY A 1689 1 15 HELIX 10 10 SER A 1699 ALA A 1703 5 5 HELIX 11 11 GLY A 1705 LEU A 1716 1 12 HELIX 12 12 ASP A 1729 GLY A 1739 1 11 HELIX 13 13 THR A 1760 LEU A 1764 5 5 HELIX 14 14 THR A 1765 SER A 1773 1 9 HELIX 15 15 SER A 1773 ARG A 1788 1 16 HELIX 16 16 PHE A 1801 PHE A 1805 1 5 HELIX 17 17 TYR A 1813 ASP A 1830 1 18 HELIX 18 18 PRO A 1865 ARG A 1879 1 15 HELIX 19 19 ARG A 1890 THR A 1899 1 10 HELIX 20 20 ILE A 1910 ARG A 1915 1 6 SHEET 1 A15 ARG A1500 VAL A1505 0 SHEET 2 A15 THR A1473 LYS A1478 1 N TRP A1474 O ARG A1500 SHEET 3 A15 GLY A1527 SER A1530 1 O LEU A1529 N LEU A1475 SHEET 4 A15 LEU A1568 GLU A1573 1 O TRP A1569 N SER A1530 SHEET 5 A15 TRP A1607 VAL A1613 1 O VAL A1611 N THR A1570 SHEET 6 A15 GLN A1637 ARG A1641 1 O LEU A1640 N ASP A1612 SHEET 7 A15 GLY A1644 ARG A1652 -1 O GLY A1644 N ARG A1641 SHEET 8 A15 ARG A1454 PRO A1461 -1 N ARG A1460 O GLY A1647 SHEET 9 A15 ILE A1885 VAL A1886 -1 O ILE A1885 N TYR A1455 SHEET 10 A15 THR A1835 TRP A1839 1 N ALA A1838 O VAL A1886 SHEET 11 A15 ALA A1794 SER A1800 1 N LEU A1797 O THR A1835 SHEET 12 A15 LEU A1746 HIS A1751 1 N VAL A1749 O VAL A1796 SHEET 13 A15 THR A1667 THR A1671 1 N LEU A1669 O PHE A1750 SHEET 14 A15 HIS A1692 SER A1697 1 O LEU A1694 N VAL A1670 SHEET 15 A15 ARG A1719 ALA A1724 1 O ARG A1719 N LEU A1693 SHEET 1 B 2 VAL A1861 ILE A1862 0 SHEET 2 B 2 ASP A1888 VAL A1889 -1 O ASP A1888 N ILE A1862 SITE 1 AC1 27 HOH A 26 HOH A 104 HOH A 177 HOH A 202 SITE 2 AC1 27 HOH A 207 HOH A 216 PHE A1581 THR A1674 SITE 3 AC1 27 GLY A1675 GLY A1676 VAL A1677 SER A1697 SITE 4 AC1 27 ARG A1698 SER A1699 GLY A1700 CYS A1725 SITE 5 AC1 27 ASP A1726 VAL A1727 ALA A1752 ALA A1754 SITE 6 AC1 27 LEU A1756 ALA A1775 LYS A1776 PHE A1798 SITE 7 AC1 27 SER A1799 TYR A1813 GLY A1840 CRYST1 42.043 42.939 61.044 90.03 103.81 100.71 P 1 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 0.023785 0.004499 0.006065 0.00000 SCALE2 0.000000 0.023702 0.001116 0.00000 SCALE3 0.000000 0.000000 0.016888 0.00000