HEADER TRANSPORT PROTEIN 27-APR-01 1IJN TITLE CRYSTAL STRUCTURE OF THE TRANSTHYRETIN MUTANT TTR C10A/Y114C COMPND MOL_ID: 1; COMPND 2 MOLECULE: TRANSTHYRETIN; COMPND 3 CHAIN: A, B; COMPND 4 FRAGMENT: TRANSTHYRETIN; COMPND 5 SYNONYM: TBPA, TTR, ATTR; COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: TTR; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 511693; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PET3 KEYWDS GREEK KEY, BETA BARREL, TRANSPORT PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR T.ENEQVIST,A.KARLSSON,A.OLOFSSON,A.E.SAUER-ERIKSSON REVDAT 6 16-AUG-23 1IJN 1 REMARK REVDAT 5 27-OCT-21 1IJN 1 REMARK SEQADV LINK REVDAT 4 13-JUL-11 1IJN 1 VERSN REVDAT 3 24-FEB-09 1IJN 1 VERSN REVDAT 2 01-NOV-05 1IJN 1 JRNL REMARK REVDAT 1 03-JUN-03 1IJN 0 JRNL AUTH A.KARLSSON,A.OLOFSSON,T.ENEQVIST,A.E.SAUER-ERIKSSON JRNL TITL CYS114-LINKED DIMERS OF TRANSTHYRETIN ARE COMPATIBLE WITH JRNL TITL 2 AMYLOID FORMATION JRNL REF BIOCHEMISTRY V. 44 13063 2005 JRNL REFN ISSN 0006-2960 JRNL PMID 16185074 JRNL DOI 10.1021/BI050795S REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH T.ENEQVIST,A.OLOFSSON,Y.ANDO,T.MIYAKAWA,S.KATSURAGI,J.JASS, REMARK 1 AUTH 2 E.LUNDGREN,A.E.SAUER-ERIKSSON REMARK 1 TITL DISULFIDE-BOND FORMATION IN THE TRANSTHYRETIN MUTANT Y114C REMARK 1 TITL 2 PREVENTS AMYLOID FIBRIL FORMATION IN VIVO AND IN VITRO REMARK 1 REF BIOCHEMISTRY V. 41 13143 2002 REMARK 1 REFN ISSN 0006-2960 REMARK 2 REMARK 2 RESOLUTION. 1.70 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.70 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 19.92 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 3 NUMBER OF REFLECTIONS : 23858 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 + TEST SET) : 0.207 REMARK 3 R VALUE (WORKING SET) : 0.204 REMARK 3 FREE R VALUE : 0.237 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 11.200 REMARK 3 FREE R VALUE TEST SET COUNT : 2665 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1771 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 24 REMARK 3 SOLVENT ATOMS : 216 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 21.30 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 19.71 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.15000 REMARK 3 B22 (A**2) : 0.25000 REMARK 3 B33 (A**2) : -0.39000 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 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.129 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.122 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.117 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 3.462 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : 0.008 ; 0.021 REMARK 3 ANGLE DISTANCE (A) : 1.268 ; 1.943 REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : NULL ; NULL REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : 0.004 ; 0.020 REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : 0.083 ; 0.200 REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : 3.866 ; 3.000 REMARK 3 MULTIPLE TORSION (A) : 15.333; 15.000 REMARK 3 H-BOND (X...Y) (A) : 0.171 ; 0.500 REMARK 3 H-BOND (X-H...Y) (A) : 0.199 ; 0.300 REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : NULL ; NULL REMARK 3 PLANAR (DEGREES) : NULL ; NULL REMARK 3 STAGGERED (DEGREES) : NULL ; NULL REMARK 3 TRANSVERSE (DEGREES) : NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 0.764 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 1.439 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.146 ; 3.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 3.618 ; 4.500 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: OCCUPANCY OF BME MOLECULES WERE REFINED REMARK 3 AFTER STRUCTURAL OVERALL B-FACTOR REFINEMENT REMARK 4 REMARK 4 1IJN COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 30-APR-01. REMARK 100 THE DEPOSITION ID IS D_1000013339. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 31-JUL-00 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 5.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ESRF REMARK 200 BEAMLINE : BM14 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.934 REMARK 200 MONOCHROMATOR : DOUBLE CRYSTAL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 26695 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.700 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.1 REMARK 200 DATA REDUNDANCY : 3.300 REMARK 200 R MERGE (I) : 0.03400 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 24.5000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.70 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.76 REMARK 200 COMPLETENESS FOR SHELL (%) : 93.0 REMARK 200 DATA REDUNDANCY IN SHELL : 2.80 REMARK 200 R MERGE FOR SHELL (I) : 0.22200 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 4.700 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: FOURIER SYNTHESIS REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: PDB ENTRY 1F41 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 43.46 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.18 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 40% PEG 550 MONOMETHYL ETHER, 0.1M REMARK 280 SODIUM CITRATE, 0.1M AMMONIUM SULPHATE, 0.1% BME, PH 5.0, VAPOR REMARK 280 DIFFUSION, HANGING DROP AT 298K, TEMPERATURE 298.0K 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 21.57500 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 42.61750 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 21.57500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 42.61750 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 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: THE SECOND PART OF THE BIOLOGICAL ASSEMBLY IS GENERATED BY REMARK 300 THE TWO FOLD AXIS: -X, -Y, Z. 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: TETRAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 6790 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 19890 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -45.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, 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 43.15000 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 85.23500 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 350 REMARK 350 BIOMOLECULE: 2 REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PQS REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, 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 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 HOH A 990 LIES ON A SPECIAL POSITION. 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 1 REMARK 465 PRO A 2 REMARK 465 THR A 3 REMARK 465 GLY A 4 REMARK 465 THR A 5 REMARK 465 GLY A 6 REMARK 465 GLU A 7 REMARK 465 SER A 8 REMARK 465 LYS A 9 REMARK 465 LYS A 126 REMARK 465 GLU A 127 REMARK 465 GLY B 1 REMARK 465 PRO B 2 REMARK 465 THR B 3 REMARK 465 GLY B 4 REMARK 465 THR B 5 REMARK 465 GLY B 6 REMARK 465 GLU B 7 REMARK 465 SER B 8 REMARK 465 LYS B 9 REMARK 465 PRO B 125 REMARK 465 LYS B 126 REMARK 465 GLU B 127 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 OD1 ASP B 74 O HOH B 1010 2.19 REMARK 500 REMARK 500 REMARK: NULL 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 B 100 45.35 -175.83 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 BME A 901 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BME B 902 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BME A 903 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BME A 904 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BME B 905 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BME B 906 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1III RELATED DB: PDB REMARK 900 A SINGLE MUTANT TTR Y114C, ROOM T REMARK 900 RELATED ID: 1IIK RELATED DB: PDB REMARK 900 A SINGLE MUTANT TTR Y114C, LOW T REMARK 900 RELATED ID: 1IIM RELATED DB: PDB REMARK 900 A DOUBLE MUTANT OF TRANSTHYRETIN DBREF 1IJN A 1 127 UNP P02766 TTHY_HUMAN 21 147 DBREF 1IJN B 1 127 UNP P02766 TTHY_HUMAN 21 147 SEQADV 1IJN ALA A 10 UNP P02766 CYS 30 ENGINEERED MUTATION SEQADV 1IJN CYS A 114 UNP P02766 TYR 134 ENGINEERED MUTATION SEQADV 1IJN ALA B 10 UNP P02766 CYS 30 ENGINEERED MUTATION SEQADV 1IJN CYS B 114 UNP P02766 TYR 134 ENGINEERED MUTATION SEQRES 1 A 127 GLY PRO THR GLY THR GLY GLU SER LYS ALA PRO LEU MET SEQRES 2 A 127 VAL LYS VAL LEU ASP ALA VAL ARG GLY SER PRO ALA ILE SEQRES 3 A 127 ASN VAL ALA VAL HIS VAL PHE ARG LYS ALA ALA ASP ASP SEQRES 4 A 127 THR TRP GLU PRO PHE ALA SER GLY LYS THR SER GLU SER SEQRES 5 A 127 GLY GLU LEU HIS GLY LEU THR THR GLU GLU GLU PHE VAL SEQRES 6 A 127 GLU GLY ILE TYR LYS VAL GLU ILE ASP THR LYS SER TYR SEQRES 7 A 127 TRP LYS ALA LEU GLY ILE SER PRO PHE HIS GLU HIS ALA SEQRES 8 A 127 GLU VAL VAL PHE THR ALA ASN ASP SER GLY PRO ARG ARG SEQRES 9 A 127 TYR THR ILE ALA ALA LEU LEU SER PRO CYS SER TYR SER SEQRES 10 A 127 THR THR ALA VAL VAL THR ASN PRO LYS GLU SEQRES 1 B 127 GLY PRO THR GLY THR GLY GLU SER LYS ALA PRO LEU MET SEQRES 2 B 127 VAL LYS VAL LEU ASP ALA VAL ARG GLY SER PRO ALA ILE SEQRES 3 B 127 ASN VAL ALA VAL HIS VAL PHE ARG LYS ALA ALA ASP ASP SEQRES 4 B 127 THR TRP GLU PRO PHE ALA SER GLY LYS THR SER GLU SER SEQRES 5 B 127 GLY GLU LEU HIS GLY LEU THR THR GLU GLU GLU PHE VAL SEQRES 6 B 127 GLU GLY ILE TYR LYS VAL GLU ILE ASP THR LYS SER TYR SEQRES 7 B 127 TRP LYS ALA LEU GLY ILE SER PRO PHE HIS GLU HIS ALA SEQRES 8 B 127 GLU VAL VAL PHE THR ALA ASN ASP SER GLY PRO ARG ARG SEQRES 9 B 127 TYR THR ILE ALA ALA LEU LEU SER PRO CYS SER TYR SER SEQRES 10 B 127 THR THR ALA VAL VAL THR ASN PRO LYS GLU HET BME A 901 4 HET BME A 903 4 HET BME A 904 4 HET BME B 902 4 HET BME B 905 4 HET BME B 906 4 HETNAM BME BETA-MERCAPTOETHANOL FORMUL 3 BME 6(C2 H6 O S) FORMUL 9 HOH *216(H2 O) HELIX 1 1 ASP A 74 LEU A 82 1 9 HELIX 2 2 ASP B 74 LEU B 82 1 9 SHEET 1 A 8 TRP A 41 LYS A 48 0 SHEET 2 A 8 ALA A 29 LYS A 35 -1 N VAL A 30 O GLY A 47 SHEET 3 A 8 GLY A 67 ILE A 73 -1 O ILE A 68 N LYS A 35 SHEET 4 A 8 HIS A 88 ALA A 97 -1 O ALA A 91 N ILE A 73 SHEET 5 A 8 HIS B 88 ALA B 97 -1 N GLU B 89 O VAL A 94 SHEET 6 A 8 GLY B 67 ILE B 73 -1 O GLY B 67 N ALA B 97 SHEET 7 A 8 ALA B 29 LYS B 35 -1 O HIS B 31 N GLU B 72 SHEET 8 A 8 TRP B 41 LYS B 48 -1 N GLU B 42 O ARG B 34 LINK SG CYS A 114 S2 BME A 901 1555 1555 2.06 LINK S2 BME A 903 S2 BME A 904 1555 1555 2.04 LINK C1 BME A 903 C2 BME A 904 1555 2665 1.53 LINK C1 BME A 903 O1 BME A 904 1555 2665 1.37 LINK C2 BME A 903 C1 BME A 904 1555 2665 1.52 LINK C2 BME A 903 S2 BME A 904 1555 2665 1.87 LINK O1 BME A 903 C1 BME A 904 1555 2665 1.45 LINK S2 BME A 903 C2 BME A 904 1555 2665 1.75 LINK C2 BME A 903 C1 BME A 904 2665 1555 1.52 LINK O1 BME A 903 C1 BME A 904 2665 1555 1.45 LINK S2 BME A 903 C2 BME A 904 2665 1555 1.75 LINK C1 BME A 903 C2 BME A 904 2665 1555 1.53 LINK C1 BME A 903 O1 BME A 904 2665 1555 1.37 LINK C2 BME A 903 S2 BME A 904 2665 1555 1.87 LINK SG CYS B 114 S2 BME B 902 1555 1555 2.01 LINK S2 BME B 905 S2 BME B 906 1555 1555 2.04 LINK C1 BME B 905 O1 BME B 906 1555 2665 1.38 LINK C2 BME B 905 C1 BME B 906 1555 2665 1.49 LINK C2 BME B 905 S2 BME B 906 1555 2665 1.78 LINK O1 BME B 905 C1 BME B 906 1555 2665 1.44 LINK S2 BME B 905 C2 BME B 906 1555 2665 1.84 LINK C2 BME B 905 C1 BME B 906 2665 1555 1.49 LINK O1 BME B 905 C1 BME B 906 2665 1555 1.44 LINK C1 BME B 905 C2 BME B 906 2665 1555 1.56 LINK S2 BME B 905 C2 BME B 906 2665 1555 1.84 LINK C1 BME B 905 O1 BME B 906 2665 1555 1.38 LINK C2 BME B 905 S2 BME B 906 2665 1555 1.78 LINK C1 BME B 905 C2 BME B 906 1555 2665 1.56 SITE 1 AC1 5 PHE A 87 CYS A 114 ARG B 21 VAL B 122 SITE 2 AC1 5 HOH B 945 SITE 1 AC2 5 ARG A 21 VAL A 122 PHE B 87 CYS B 114 SITE 2 AC2 5 HOH B 963 SITE 1 AC3 5 ALA A 108 SER A 117 THR A 118 THR A 119 SITE 2 AC3 5 BME A 904 SITE 1 AC4 5 ALA A 108 SER A 117 THR A 118 THR A 119 SITE 2 AC4 5 BME A 903 SITE 1 AC5 4 SER B 117 THR B 118 THR B 119 BME B 906 SITE 1 AC6 4 SER B 117 THR B 118 THR B 119 BME B 905 CRYST1 43.150 85.235 64.797 90.00 90.00 90.00 P 21 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 0.023175 0.000000 0.000000 0.00000 SCALE2 0.000000 0.011732 0.000000 0.00000 SCALE3 0.000000 0.000000 0.015433 0.00000