HEADER TRANSCRIPTION 24-JAN-01 1HZC TITLE BACILLUS CALDOLYTICUS COLD-SHOCK PROTEIN MUTANTS TO STUDY DETERMINANTS TITLE 2 OF PROTEIN STABILITY COMPND MOL_ID: 1; COMPND 2 MOLECULE: COLD SHOCK PROTEIN CSPB; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: CSPB, BC-CSP; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BACILLUS CALDOLYTICUS; SOURCE 3 ORGANISM_TAXID: 1394; SOURCE 4 GENE: CSPB; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS BETA BARREL, HOMODIMER, TRANSCRIPTION EXPDTA X-RAY DIFFRACTION AUTHOR H.DELBRUECK,U.MUELLER,D.PERL,F.X.SCHMID,U.HEINEMANN REVDAT 5 09-AUG-23 1HZC 1 REMARK REVDAT 4 27-OCT-21 1HZC 1 REMARK SEQADV LINK REVDAT 3 24-FEB-09 1HZC 1 VERSN REVDAT 2 01-APR-03 1HZC 1 JRNL REVDAT 1 07-NOV-01 1HZC 0 JRNL AUTH H.DELBRUCK,U.MUELLER,D.PERL,F.X.SCHMID,U.HEINEMANN JRNL TITL CRYSTAL STRUCTURES OF MUTANT FORMS OF THE BACILLUS JRNL TITL 2 CALDOLYTICUS COLD SHOCK PROTEIN DIFFERING IN THERMAL JRNL TITL 3 STABILITY. JRNL REF J.MOL.BIOL. V. 313 359 2001 JRNL REFN ISSN 0022-2836 JRNL PMID 11800562 JRNL DOI 10.1006/JMBI.2001.5051 REMARK 2 REMARK 2 RESOLUTION. 1.32 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) : 1.32 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.4 REMARK 3 NUMBER OF REFLECTIONS : 32610 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : THIN SHELLS 10% REMARK 3 R VALUE (WORKING + TEST SET) : 0.144 REMARK 3 R VALUE (WORKING SET) : 0.139 REMARK 3 FREE R VALUE : 0.181 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 3298 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1028 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 270 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 15.70 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 OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): NULL REMARK 3 ESU BASED ON FREE R VALUE (A): NULL REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): NULL REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : 0.015 ; NULL REMARK 3 ANGLE DISTANCE (A) : 2.500 ; NULL 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) : NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : NULL ; NULL REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : NULL ; NULL REMARK 3 MULTIPLE TORSION (A) : NULL ; NULL REMARK 3 H-BOND (X...Y) (A) : NULL ; NULL REMARK 3 H-BOND (X-H...Y) (A) : NULL ; NULL 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) : 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 OTHER REFINEMENT REMARKS: SHELXL-97 (SHELDRICK) WAS ALSO USED FOR REMARK 3 REFINEMENT REMARK 4 REMARK 4 1HZC COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 25-JAN-01. REMARK 100 THE DEPOSITION ID IS D_1000012711. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 31-JAN-00 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : EMBL/DESY, HAMBURG REMARK 200 BEAMLINE : BW7B REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.8428 REMARK 200 MONOCHROMATOR : CRYSTAL REMARK 200 OPTICS : CRYSTAL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE 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 : 32636 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.320 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 (%) : 99.4 REMARK 200 DATA REDUNDANCY : 2.700 REMARK 200 R MERGE (I) : 0.03800 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 37.8000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.32 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.33 REMARK 200 COMPLETENESS FOR SHELL (%) : 97.7 REMARK 200 DATA REDUNDANCY IN SHELL : 2.00 REMARK 200 R MERGE FOR SHELL (I) : 0.43400 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 1.000 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: PDB ENTRY 1C9O REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 49.56 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.44 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: MPD, CACODYLATE, PH 6.5, VAPOR REMARK 280 DIFFUSION, HANGING DROP, TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 41 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 3555 -Y,X+1/2,Z+1/4 REMARK 290 4555 Y+1/2,-X,Z+3/4 REMARK 290 5555 X+1/2,Y+1/2,Z+1/2 REMARK 290 6555 -X,-Y,Z REMARK 290 7555 -Y+1/2,X,Z+3/4 REMARK 290 8555 Y,-X+1/2,Z+1/4 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 38.43200 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 38.43200 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 24.01200 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 38.43200 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 12.00600 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 38.43200 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 36.01800 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 38.43200 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 38.43200 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 24.01200 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 7 0.000000 -1.000000 0.000000 38.43200 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 1.000000 36.01800 REMARK 290 SMTRY1 8 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 38.43200 REMARK 290 SMTRY3 8 0.000000 0.000000 1.000000 12.00600 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 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 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 CE LYS B 5 O HOH B 172 2.16 REMARK 500 NE2 GLN A 53 O HOH A 378 2.17 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 RES CSSEQI ATM2 DEVIATION REMARK 500 MET A 1 CA MET A 1 CB -0.329 REMARK 500 MET A 1 CB MET A 1 CG 0.328 REMARK 500 GLN A 53 CA GLN A 53 CB 0.581 REMARK 500 GLN A 53 CB GLN A 53 CG 0.164 REMARK 500 GLN A 53 CG GLN A 53 CD 0.557 REMARK 500 GLN A 53 CD GLN A 53 OE1 0.311 REMARK 500 GLN A 53 CD GLN A 53 NE2 0.687 REMARK 500 LYS B 5 CG LYS B 5 CD -0.275 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 MET A 1 N - CA - CB ANGL. DEV. = -21.6 DEGREES REMARK 500 MET A 1 CA - CB - CG ANGL. DEV. = -11.7 DEGREES REMARK 500 GLU A 36 CA - C - O ANGL. DEV. = 16.2 DEGREES REMARK 500 GLU A 43 CA - CB - CG ANGL. DEV. = 32.2 DEGREES REMARK 500 GLU A 50 OE1 - CD - OE2 ANGL. DEV. = -9.5 DEGREES REMARK 500 GLN A 53 CA - CB - CG ANGL. DEV. = -16.4 DEGREES REMARK 500 GLN A 53 CB - CG - CD ANGL. DEV. = -23.4 DEGREES REMARK 500 GLN A 53 OE1 - CD - NE2 ANGL. DEV. = -17.1 DEGREES REMARK 500 GLN A 53 CG - CD - OE1 ANGL. DEV. = 18.1 DEGREES REMARK 500 LYS B 5 N - CA - CB ANGL. DEV. = 11.5 DEGREES REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 GLN A 53 0.09 SIDE CHAIN 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 NA A 305 NA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 VAL A 20 O REMARK 620 2 GLY A 23 O 74.2 REMARK 620 3 HOH A 316 O 79.7 64.7 REMARK 620 4 HOH A 390 O 108.2 67.5 126.9 REMARK 620 5 HOH A 400 O 87.1 116.8 165.7 62.5 REMARK 620 6 HOH A 426 O 88.7 155.9 96.0 135.6 78.3 REMARK 620 N 1 2 3 4 5 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NA A 305 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1C9O RELATED DB: PDB REMARK 900 1C9O IS BACILLUS CALDOLYTICUS COLD-SHOCK-PROTEIN REMARK 900 RELATED ID: 1CSP RELATED DB: PDB REMARK 900 1CSP IS BACILLUS SUBTILIS COLD-SHOCK-PROTEIN REMARK 900 RELATED ID: 1HZ9 RELATED DB: PDB REMARK 900 1HZ9 IS SINGLE MUTANT OF 1C9O (E46A) REMARK 900 RELATED ID: 1HZA RELATED DB: PDB REMARK 900 1HZA IS TRIPLE MUTANT OF 1C9O (V64T/L66E/67A) REMARK 900 RELATED ID: 1HZB RELATED DB: PDB REMARK 900 1HZB IS SINGLE MUTANT OF 1C9O (L66E) DBREF 1HZC A 1 66 UNP P41016 CSPB_BACCL 1 66 DBREF 1HZC B 1 66 UNP P41016 CSPB_BACCL 1 66 SEQADV 1HZC GLU A 3 UNP P41016 ARG 3 ENGINEERED MUTATION SEQADV 1HZC ALA A 46 UNP P41016 GLU 46 ENGINEERED MUTATION SEQADV 1HZC GLU A 66 UNP P41016 LEU 66 ENGINEERED MUTATION SEQADV 1HZC GLU B 3 UNP P41016 ARG 3 ENGINEERED MUTATION SEQADV 1HZC ALA B 46 UNP P41016 GLU 46 ENGINEERED MUTATION SEQADV 1HZC GLU B 66 UNP P41016 LEU 66 ENGINEERED MUTATION SEQRES 1 A 66 MET GLN GLU GLY LYS VAL LYS TRP PHE ASN ASN GLU LYS SEQRES 2 A 66 GLY TYR GLY PHE ILE GLU VAL GLU GLY GLY SER ASP VAL SEQRES 3 A 66 PHE VAL HIS PHE THR ALA ILE GLN GLY GLU GLY PHE LYS SEQRES 4 A 66 THR LEU GLU GLU GLY GLN ALA VAL SER PHE GLU ILE VAL SEQRES 5 A 66 GLN GLY ASN ARG GLY PRO GLN ALA ALA ASN VAL VAL LYS SEQRES 6 A 66 GLU SEQRES 1 B 66 MET GLN GLU GLY LYS VAL LYS TRP PHE ASN ASN GLU LYS SEQRES 2 B 66 GLY TYR GLY PHE ILE GLU VAL GLU GLY GLY SER ASP VAL SEQRES 3 B 66 PHE VAL HIS PHE THR ALA ILE GLN GLY GLU GLY PHE LYS SEQRES 4 B 66 THR LEU GLU GLU GLY GLN ALA VAL SER PHE GLU ILE VAL SEQRES 5 B 66 GLN GLY ASN ARG GLY PRO GLN ALA ALA ASN VAL VAL LYS SEQRES 6 B 66 GLU HET NA A 305 1 HETNAM NA SODIUM ION FORMUL 3 NA NA 1+ FORMUL 4 HOH *270(H2 O) HELIX 1 1 THR A 31 ILE A 33 5 3 HELIX 2 2 THR B 31 ILE B 33 5 3 SHEET 1 A 5 VAL A 26 HIS A 29 0 SHEET 2 A 5 TYR A 15 GLU A 19 -1 O GLY A 16 N VAL A 28 SHEET 3 A 5 GLN A 2 ASN A 10 -1 O LYS A 5 N GLU A 19 SHEET 4 A 5 ALA A 46 GLY A 54 -1 O VAL A 47 N GLY A 4 SHEET 5 A 5 GLY A 57 LYS A 65 -1 O GLY A 57 N GLY A 54 SHEET 1 B 6 GLN B 2 ASN B 10 0 SHEET 2 B 6 TYR B 15 GLU B 19 -1 O TYR B 15 N ASN B 10 SHEET 3 B 6 VAL B 26 HIS B 29 -1 N VAL B 26 O ILE B 18 SHEET 4 B 6 GLY B 57 LYS B 65 1 O PRO B 58 N PHE B 27 SHEET 5 B 6 ALA B 46 GLY B 54 -1 O SER B 48 N VAL B 64 SHEET 6 B 6 GLN B 2 ASN B 10 -1 O GLN B 2 N PHE B 49 LINK O VAL A 20 NA NA A 305 1555 1555 2.52 LINK O GLY A 23 NA NA A 305 1555 1555 2.76 LINK NA NA A 305 O HOH A 316 1555 1555 2.46 LINK NA NA A 305 O HOH A 390 1555 1555 2.86 LINK NA NA A 305 O HOH A 400 1555 1555 2.73 LINK NA NA A 305 O HOH A 426 1555 1555 2.84 SITE 1 AC1 7 VAL A 20 GLY A 23 HOH A 316 HOH A 390 SITE 2 AC1 7 HOH A 400 HOH A 426 HOH B 149 CRYST1 76.864 76.864 48.024 90.00 90.00 90.00 I 41 16 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 0.013010 0.000000 0.000000 0.00000 SCALE2 0.000000 0.013010 0.000000 0.00000 SCALE3 0.000000 0.000000 0.020823 0.00000