HEADER ISOMERASE 18-OCT-99 1D7I TITLE FKBP COMPLEXED WITH METHYL METHYLSULFINYLMETHYL SULFIDE (DSS) COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEIN (FK506-BINDING PROTEIN); COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: FKBP-12; COMPND 5 EC: 5.2.1.8; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS ISOMERASE, IMMUNOPHILIN, FKBP, METHYL METHYLSULFINYLMETHYL SULFIDE, KEYWDS 2 DSS EXPDTA X-RAY DIFFRACTION AUTHOR P.BURKHARD,P.TAYLOR,M.D.WALKINSHAW REVDAT 6 07-FEB-24 1D7I 1 REMARK REVDAT 5 04-OCT-17 1D7I 1 REMARK HELIX REVDAT 4 13-JUL-11 1D7I 1 VERSN REVDAT 3 24-FEB-09 1D7I 1 VERSN REVDAT 2 16-FEB-00 1D7I 1 JRNL COMPND REMARK REVDAT 1 21-OCT-99 1D7I 0 JRNL AUTH P.BURKHARD,P.TAYLOR,M.D.WALKINSHAW JRNL TITL X-RAY STRUCTURES OF SMALL LIGAND-FKBP COMPLEXES PROVIDE AN JRNL TITL 2 ESTIMATE FOR HYDROPHOBIC INTERACTION ENERGIES. JRNL REF J.MOL.BIOL. V. 295 953 2000 JRNL REFN ISSN 0022-2836 JRNL PMID 10656803 JRNL DOI 10.1006/JMBI.1999.3411 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH G.D.VAN DUYNE,R.F.STANDAERT,S.L.SCHREIBER,J.CLARDY REMARK 1 TITL ATOMIC STRUCTURE OF THE RAPAMYCIN HUMAN IMMUNOPHILIN FKBP-12 REMARK 1 TITL 2 COMPLEX REMARK 1 REF J.AM.CHEM.SOC. V. 113 7433 1991 REMARK 1 REFN ISSN 0002-7863 REMARK 2 REMARK 2 RESOLUTION. 1.90 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.90 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 3.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 85.0 REMARK 3 NUMBER OF REFLECTIONS : 14586 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : A POSTERIORI REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.212 REMARK 3 FREE R VALUE : 0.283 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 3.000 REMARK 3 FREE R VALUE TEST SET COUNT : 408 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 : 1664 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 24 REMARK 3 SOLVENT ATOMS : 114 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) : 0.010 REMARK 3 BOND ANGLES (DEGREES) : 1.654 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 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 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1D7I COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 19-OCT-99. REMARK 100 THE DEPOSITION ID IS D_1000009860. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 01-JAN-95 REMARK 200 TEMPERATURE (KELVIN) : 297 REMARK 200 PH : 8.0 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 REMARK 200 OPTICS : COLLIMATOR REMARK 200 REMARK 200 DETECTOR TYPE : AREA DETECTOR REMARK 200 DETECTOR MANUFACTURER : ENRAF-NONIUS REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MADNESS REMARK 200 DATA SCALING SOFTWARE : CCP4 (AGROVATA, ROTAVATA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 14586 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.900 REMARK 200 RESOLUTION RANGE LOW (A) : 100.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 85.0 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : 0.06300 REMARK 200 R SYM (I) : NULL REMARK 200 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 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: X-PLOR REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 44.15 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.20 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: CRYSTALLIZATION CONDITIONS: 56 % SAT. REMARK 280 AMMONIUM SULFATE 5 % METHYL SULFINYL- METHYL SULFOXIDE, 100 MM REMARK 280 TRIS (PH 8.0), VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 297K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 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 51.40000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 18.22500 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 51.40000 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 18.22500 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2, 3, 4 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 350 REMARK 350 BIOMOLECULE: 2 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: B 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 REMARK 350 BIOMOLECULE: 3 REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 2120 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 10620 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -39.0 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 102.80000 REMARK 350 BIOMT2 2 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 350 REMARK 350 BIOMOLECULE: 4 REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PQS REMARK 350 APPLY THE FOLLOWING TO CHAINS: B 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 108.65359 REMARK 350 BIOMT2 2 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 -55.69323 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 N NH4 A 401 LIES ON A SPECIAL POSITION. REMARK 375 S SO4 A 403 LIES ON A SPECIAL POSITION. REMARK 375 N NH4 B 402 LIES ON A SPECIAL POSITION. REMARK 375 S SO4 B 404 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 ARG A 13 -19.44 -142.99 REMARK 500 SER A 38 114.74 -172.40 REMARK 500 ALA A 81 -107.68 -120.87 REMARK 500 PRO A 88 130.41 -37.68 REMARK 500 ILE A 90 -54.90 -124.56 REMARK 500 ARG B 13 -30.51 -146.73 REMARK 500 SER B 38 116.22 -167.96 REMARK 500 ALA B 81 -107.11 -123.34 REMARK 500 PRO B 88 126.49 -35.78 REMARK 500 ILE B 90 -52.66 -121.29 REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: BPA REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: NULL REMARK 800 REMARK 800 SITE_IDENTIFIER: BPB REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: NULL REMARK 800 REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NH4 A 401 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NH4 B 402 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 403 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 B 404 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DSS A 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DSS B 302 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1D6O RELATED DB: PDB REMARK 900 NATIVE FKBP REMARK 900 RELATED ID: 1D7H RELATED DB: PDB REMARK 900 FKBP COMPLEXED WITH DMSO REMARK 900 RELATED ID: 1D7I RELATED DB: PDB REMARK 900 FKBP COMPLEXED WITH METHYL METHYLSULFINYLMETHYL SULFIDE REMARK 900 RELATED ID: 1D7J RELATED DB: PDB REMARK 900 FKBP COMPLEXED WITH 4-HYDROXY-2-BUTANONE DBREF 1D7I A 1 107 UNP P62942 FKB1A_HUMAN 1 107 DBREF 1D7I B 1 107 UNP P62942 FKB1A_HUMAN 1 107 SEQRES 1 A 107 GLY VAL GLN VAL GLU THR ILE SER PRO GLY ASP GLY ARG SEQRES 2 A 107 THR PHE PRO LYS ARG GLY GLN THR CYS VAL VAL HIS TYR SEQRES 3 A 107 THR GLY MET LEU GLU ASP GLY LYS LYS PHE ASP SER SER SEQRES 4 A 107 ARG ASP ARG ASN LYS PRO PHE LYS PHE MET LEU GLY LYS SEQRES 5 A 107 GLN GLU VAL ILE ARG GLY TRP GLU GLU GLY VAL ALA GLN SEQRES 6 A 107 MET SER VAL GLY GLN ARG ALA LYS LEU THR ILE SER PRO SEQRES 7 A 107 ASP TYR ALA TYR GLY ALA THR GLY HIS PRO GLY ILE ILE SEQRES 8 A 107 PRO PRO HIS ALA THR LEU VAL PHE ASP VAL GLU LEU LEU SEQRES 9 A 107 LYS LEU GLU SEQRES 1 B 107 GLY VAL GLN VAL GLU THR ILE SER PRO GLY ASP GLY ARG SEQRES 2 B 107 THR PHE PRO LYS ARG GLY GLN THR CYS VAL VAL HIS TYR SEQRES 3 B 107 THR GLY MET LEU GLU ASP GLY LYS LYS PHE ASP SER SER SEQRES 4 B 107 ARG ASP ARG ASN LYS PRO PHE LYS PHE MET LEU GLY LYS SEQRES 5 B 107 GLN GLU VAL ILE ARG GLY TRP GLU GLU GLY VAL ALA GLN SEQRES 6 B 107 MET SER VAL GLY GLN ARG ALA LYS LEU THR ILE SER PRO SEQRES 7 B 107 ASP TYR ALA TYR GLY ALA THR GLY HIS PRO GLY ILE ILE SEQRES 8 B 107 PRO PRO HIS ALA THR LEU VAL PHE ASP VAL GLU LEU LEU SEQRES 9 B 107 LYS LEU GLU HET NH4 A 401 1 HET SO4 A 403 5 HET DSS A 301 6 HET NH4 B 402 1 HET SO4 B 404 5 HET DSS B 302 6 HETNAM NH4 AMMONIUM ION HETNAM SO4 SULFATE ION HETNAM DSS METHYL METHYLSULFINYLMETHYL SULFIDE FORMUL 3 NH4 2(H4 N 1+) FORMUL 4 SO4 2(O4 S 2-) FORMUL 5 DSS 2(C3 H8 O S2) FORMUL 9 HOH *114(H2 O) HELIX 1 A ARG A 57 VAL A 63 1 7 HELIX 2 B ARG B 57 VAL B 63 1 7 SHEET 1 A1 5 VAL A 2 SER A 8 0 SHEET 2 A1 5 ARG A 71 ILE A 76 -1 O THR A 75 N GLN A 3 SHEET 3 A1 5 LEU A 97 LEU A 106 -1 N LEU A 97 O ILE A 76 SHEET 4 A1 5 THR A 21 LEU A 30 -1 N VAL A 23 O LYS A 105 SHEET 5 A1 5 LYS A 35 SER A 38 -1 N PHE A 36 O GLY A 28 SHEET 1 A2 5 VAL A 2 SER A 8 0 SHEET 2 A2 5 ARG A 71 ILE A 76 -1 N THR A 75 O GLN A 3 SHEET 3 A2 5 LEU A 97 LEU A 106 -1 N LEU A 97 O ILE A 76 SHEET 4 A2 5 THR A 21 LEU A 30 -1 N VAL A 23 O LYS A 105 SHEET 5 A2 5 PHE A 46 MET A 49 -1 N PHE A 46 O VAL A 24 SHEET 1 A3 5 VAL B 2 SER B 8 0 SHEET 2 A3 5 ARG B 71 ILE B 76 -1 O THR B 75 N GLN B 3 SHEET 3 A3 5 LEU B 97 LEU B 106 -1 N LEU B 97 O ILE B 76 SHEET 4 A3 5 THR B 21 LEU B 30 -1 N VAL B 23 O LYS B 105 SHEET 5 A3 5 LYS B 35 SER B 38 -1 N PHE B 36 O GLY B 28 SHEET 1 A4 5 VAL B 2 SER B 8 0 SHEET 2 A4 5 ARG B 71 ILE B 76 -1 N THR B 75 O GLN B 3 SHEET 3 A4 5 LEU B 97 LEU B 106 -1 N LEU B 97 O ILE B 76 SHEET 4 A4 5 THR B 21 LEU B 30 -1 N VAL B 23 O LYS B 105 SHEET 5 A4 5 PHE B 46 MET B 49 -1 N PHE B 46 O VAL B 24 SITE 1 BPA 4 TYR A 26 PHE A 46 VAL A 55 ILE A 56 SITE 1 BPB 4 TYR B 26 PHE B 46 VAL B 55 ILE B 56 SITE 1 AC1 3 TYR A 82 THR A 85 GLY A 86 SITE 1 AC2 3 TYR B 82 THR B 85 GLY B 86 SITE 1 AC3 4 GLY A 83 ALA A 84 THR A 85 HOH A 433 SITE 1 AC4 4 GLY B 83 ALA B 84 THR B 85 HOH B 429 SITE 1 AC5 8 TYR A 26 PHE A 46 VAL A 55 ILE A 56 SITE 2 AC5 8 TYR A 82 HOH A 450 HOH A 451 HOH A 452 SITE 1 AC6 9 TYR B 26 PHE B 46 VAL B 55 ILE B 56 SITE 2 AC6 9 TYR B 82 PHE B 99 HOH B 459 HOH B 460 SITE 3 AC6 9 HOH B 461 CRYST1 102.800 36.450 56.000 90.00 96.00 90.00 C 1 2 1 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 0.009728 0.000000 0.001022 0.00000 SCALE2 0.000000 0.027435 -0.000001 0.00000 SCALE3 0.000000 0.000000 0.017955 0.00000