1B2F - Header Asymmetric Unit

HEADER HORMONE/GROWTH FACTOR 26-NOV-98 1B2F

TITLE PH AFFECTS GLU B13 SWITCHING AND SULFATE BINDING IN CUBIC TITLE 2 INSULIN CRYSTALS (PH 6.98 COORDINATES)

COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEIN (INSULIN A CHAIN); COMPND 3 CHAIN: A; COMPND 4 MOL_ID: 2; COMPND 5 MOLECULE: PROTEIN (INSULIN B CHAIN); COMPND 6 CHAIN: B

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SUS SCROFA; SOURCE 3 ORGANISM_COMMON: PIG; SOURCE 4 ORGANISM_TAXID: 9823; SOURCE 5 ORGAN: PANCREAS; SOURCE 6 MOL_ID: 2; SOURCE 7 ORGANISM_SCIENTIFIC: SUS SCROFA; SOURCE 8 ORGANISM_COMMON: PIG; SOURCE 9 ORGANISM_TAXID: 9823; SOURCE 10 ORGAN: PANCREAS

KEYWDS HORMONE, HORMONE/GROWTH FACTOR COMPLEX

EXPDTA X-RAY DIFFRACTION

AUTHOR J.S.DIAO,D.L.D.CASPAR

REVDAT 2 24-FEB-09 1B2F 1 VERSN REVDAT 1 08-APR-03 1B2F 0

JRNL AUTH J.DIAO JRNL TITL CRYSTALLOGRAPHIC TITRATION OF CUBIC INSULIN JRNL TITL 2 CRYSTALS: PH AFFECTS GLUB13 SWITCHING AND SULFATE JRNL TITL 3 BINDING. JRNL REF ACTA CRYSTALLOGR.,SECT.D V. 59 670 2003 JRNL REFN ISSN 0907-4449 JRNL PMID 12657786 JRNL DOI 10.1107/S0907444903002208

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH O.GURSKY,J.BADGER,Y.LI,D.L.CASPAR REMARK 1 TITL CONFORMATIONAL CHANGES IN CUBIC INSULIN CRYSTALS REMARK 1 TITL 2 IN THE PH RANGE 7-11 REMARK 1 REF BIOPHYS.J. V. 63 1210 1992 REMARK 1 REFN ISSN 0006-3495 REMARK 1 REFERENCE 2 REMARK 1 AUTH O.GURSKY,Y.LI,J.BADGER,D.L.CASPAR REMARK 1 TITL MONOVALENT CATION BINDING IN CUBIC INSULIN CRYSTALS REMARK 1 REF BIOPHYS.J. V. 61 604 1992 REMARK 1 REFN ISSN 0006-3495 REMARK 1 REFERENCE 3 REMARK 1 AUTH J.BADGER REMARK 1 TITL FLEXIBILITY IN CRYSTALLINE INSULINS REMARK 1 REF BIOPHYS.J. V. 61 816 1992 REMARK 1 REFN ISSN 0006-3495 REMARK 1 REFERENCE 4 REMARK 1 AUTH J.BADGER,M.R.HARRIS,C.D.REYNOLDS,A.C.EVANS, REMARK 1 AUTH 2 E.J.DODSON,G.G.DODSON,A.C.T.NORTH REMARK 1 TITL STRUCTURE OF THE PIG INSULIN DIMER IN THE CUBIC REMARK 1 TITL 2 CRYSTAL REMARK 1 REF ACTA CRYSTALLOGR.,SECT.B V. 47 127 1991 REMARK 1 REFN ISSN 0108-7681 REMARK 1 REFERENCE 5 REMARK 1 AUTH J.BADGER,D.L.CASPAR REMARK 1 TITL WATER STRUCTURE IN CUBIC INSULIN CRYSTALS REMARK 1 REF PROC.NATL.ACAD.SCI.USA V. 88 622 1991 REMARK 1 REFN ISSN 0027-8424 REMARK 1 REFERENCE 6 REMARK 1 AUTH E.J.DODSON,G.G.DODSON,A.LEWITOVA,M.SABESAN REMARK 1 TITL ZINC-FREE CUBIC PIG INSULIN: CRYSTALLIZATION AND REMARK 1 TITL 2 STRUCTURE DETERMINATION REMARK 1 REF J.MOL.BIOL. V. 125 387 1978 REMARK 1 REFN ISSN 0022-2836

REMARK 2 REMARK 2 RESOLUTION. 1.90 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.843 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) : 10.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1000000.000 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0010 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 98.4 REMARK 3 NUMBER OF REFLECTIONS : 6415 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) : 0.187 REMARK 3 FREE R VALUE : 0.244 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.260 REMARK 3 FREE R VALUE TEST SET COUNT : 669 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 : 15 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.90 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.94 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 96.29 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 364 REMARK 3 BIN R VALUE (WORKING SET) : 0.2689 REMARK 3 BIN FREE R VALUE : 0.2806 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 11.83 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 51 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 : 408 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 66 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 24.55 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 28.07 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) : 0.006 REMARK 3 BOND ANGLES (DEGREES) : 1.09 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 22.42 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.07 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 : PARAM19.SOL REMARK 3 PARAMETER FILE 3 : SO4.PAR REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : TOPHCSDX.PRO REMARK 3 TOPOLOGY FILE 2 : TOPH19.SOL REMARK 3 TOPOLOGY FILE 3 : SO4.TOP REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL

REMARK 4 REMARK 4 1B2F COMPLIES WITH FORMAT V. 3.15, 01-DEC-08

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 01-DEC-98. REMARK 100 THE RCSB ID CODE IS RCSB000175.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : 287 REMARK 200 PH : 6.98 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : NULL REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : NULL REMARK 200 DETECTOR MANUFACTURER : NULL REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 9097 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.700 REMARK 200 RESOLUTION RANGE LOW (A) : 55.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.8 REMARK 200 DATA REDUNDANCY : 5.050 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.06000 REMARK 200 <I/SIGMA(I)> 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 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: OTHER 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 (%): 65.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.52 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 6.98

REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 21 3 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 REMARK 290 4555 X+1/2,-Y+1/2,-Z REMARK 290 5555 Z,X,Y REMARK 290 6555 Z+1/2,-X+1/2,-Y REMARK 290 7555 -Z+1/2,-X,Y+1/2 REMARK 290 8555 -Z,X+1/2,-Y+1/2 REMARK 290 9555 Y,Z,X REMARK 290 10555 -Y,Z+1/2,-X+1/2 REMARK 290 11555 Y+1/2,-Z+1/2,-X REMARK 290 12555 -Y+1/2,-Z,X+1/2 REMARK 290 13555 X+1/2,Y+1/2,Z+1/2 REMARK 290 14555 -X,-Y+1/2,Z REMARK 290 15555 -X+1/2,Y,-Z REMARK 290 16555 X,-Y,-Z+1/2 REMARK 290 17555 Z+1/2,X+1/2,Y+1/2 REMARK 290 18555 Z,-X,-Y+1/2 REMARK 290 19555 -Z,-X+1/2,Y REMARK 290 20555 -Z+1/2,X,-Y REMARK 290 21555 Y+1/2,Z+1/2,X+1/2 REMARK 290 22555 -Y+1/2,Z,-X REMARK 290 23555 Y,-Z,-X+1/2 REMARK 290 24555 -Y,-Z+1/2,X 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 39.38700 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 39.38700 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 39.38700 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 39.38700 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 39.38700 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 39.38700 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY2 5 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY1 6 0.000000 0.000000 1.000000 39.38700 REMARK 290 SMTRY2 6 -1.000000 0.000000 0.000000 39.38700 REMARK 290 SMTRY3 6 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY1 7 0.000000 0.000000 -1.000000 39.38700 REMARK 290 SMTRY2 7 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 1.000000 0.000000 39.38700 REMARK 290 SMTRY1 8 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY2 8 1.000000 0.000000 0.000000 39.38700 REMARK 290 SMTRY3 8 0.000000 -1.000000 0.000000 39.38700 REMARK 290 SMTRY1 9 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 9 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY3 9 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY1 10 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 10 0.000000 0.000000 1.000000 39.38700 REMARK 290 SMTRY3 10 -1.000000 0.000000 0.000000 39.38700 REMARK 290 SMTRY1 11 0.000000 1.000000 0.000000 39.38700 REMARK 290 SMTRY2 11 0.000000 0.000000 -1.000000 39.38700 REMARK 290 SMTRY3 11 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY1 12 0.000000 -1.000000 0.000000 39.38700 REMARK 290 SMTRY2 12 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY3 12 1.000000 0.000000 0.000000 39.38700 REMARK 290 SMTRY1 13 1.000000 0.000000 0.000000 39.38700 REMARK 290 SMTRY2 13 0.000000 1.000000 0.000000 39.38700 REMARK 290 SMTRY3 13 0.000000 0.000000 1.000000 39.38700 REMARK 290 SMTRY1 14 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 14 0.000000 -1.000000 0.000000 39.38700 REMARK 290 SMTRY3 14 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 15 -1.000000 0.000000 0.000000 39.38700 REMARK 290 SMTRY2 15 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 15 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 16 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 16 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 16 0.000000 0.000000 -1.000000 39.38700 REMARK 290 SMTRY1 17 0.000000 0.000000 1.000000 39.38700 REMARK 290 SMTRY2 17 1.000000 0.000000 0.000000 39.38700 REMARK 290 SMTRY3 17 0.000000 1.000000 0.000000 39.38700 REMARK 290 SMTRY1 18 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY2 18 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 18 0.000000 -1.000000 0.000000 39.38700 REMARK 290 SMTRY1 19 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY2 19 -1.000000 0.000000 0.000000 39.38700 REMARK 290 SMTRY3 19 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY1 20 0.000000 0.000000 -1.000000 39.38700 REMARK 290 SMTRY2 20 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 20 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY1 21 0.000000 1.000000 0.000000 39.38700 REMARK 290 SMTRY2 21 0.000000 0.000000 1.000000 39.38700 REMARK 290 SMTRY3 21 1.000000 0.000000 0.000000 39.38700 REMARK 290 SMTRY1 22 0.000000 -1.000000 0.000000 39.38700 REMARK 290 SMTRY2 22 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY3 22 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY1 23 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 23 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY3 23 -1.000000 0.000000 0.000000 39.38700 REMARK 290 SMTRY1 24 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 24 0.000000 0.000000 -1.000000 39.38700 REMARK 290 SMTRY3 24 1.000000 0.000000 0.000000 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 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 1540 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 3430 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -15.0 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 REMARK 350 BIOMOLECULE: 2 REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 4330 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 5610 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -37.0 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 0.00000 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 78.77400 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 39.38700

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 B 69 LIES ON A SPECIAL POSITION.

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 37 DISTANCE = 6.18 ANGSTROMS REMARK 525 HOH B 51 DISTANCE = 7.39 ANGSTROMS REMARK 525 HOH A 45 DISTANCE = 7.22 ANGSTROMS REMARK 525 HOH A 46 DISTANCE = 8.98 ANGSTROMS REMARK 525 HOH B 65 DISTANCE = 7.19 ANGSTROMS

REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1B17 RELATED DB: PDB REMARK 900 1M SODIUM SULFATE SOLUTION AT PH 5.00 REMARK 900 RELATED ID: 1B18 RELATED DB: PDB REMARK 900 1M SODIUM SULFATE SOLUTION AT PH 5.53 REMARK 900 RELATED ID: 1B19 RELATED DB: PDB REMARK 900 1M SODIUM SULFATE SOLUTION AT PH 5.80 REMARK 900 RELATED ID: 1B2A RELATED DB: PDB REMARK 900 1M SODIUM SULFATE SOLUTION AT PH 6.00 REMARK 900 RELATED ID: 1B2B RELATED DB: PDB REMARK 900 1M SODIUM SULFATE SOLUTION AT PH 6.16 REMARK 900 RELATED ID: 1B2C RELATED DB: PDB REMARK 900 1M SODIUM SULFATE SOLUTION AT PH 6.26 REMARK 900 RELATED ID: 1B2D RELATED DB: PDB REMARK 900 1M SODIUM SULFATE SOLUTION AT PH 6.35 REMARK 900 RELATED ID: 1B2E RELATED DB: PDB REMARK 900 1M SODIUM SULFATE SOLUTION AT PH 6.50 REMARK 900 RELATED ID: 1B2F RELATED DB: PDB REMARK 900 1M SODIUM SULFATE SOLUTION AT PH 6.98 REMARK 900 RELATED ID: 1B2G RELATED DB: PDB REMARK 900 1M SODIUM SULFATE SOLUTION AT PH 9.00

DBREF 1B2F A 1 21 UNP P01315 INS_PIG 88 108 DBREF 1B2F B 1 30 UNP P01315 INS_PIG 25 54

SEQRES 1 A 21 GLY ILE VAL GLU GLN CYS CYS THR SER ILE CYS SER LEU SEQRES 2 A 21 TYR GLN LEU GLU ASN TYR CYS ASN SEQRES 1 B 30 PHE VAL ASN GLN HIS LEU CYS GLY SER HIS LEU VAL GLU SEQRES 2 B 30 ALA LEU TYR LEU VAL CYS GLY GLU ARG GLY PHE PHE TYR SEQRES 3 B 30 THR PRO LYS ALA

FORMUL 3 HOH *66(H2 O)

HELIX 1 1 ILE A 2 CYS A 6 1 5 HELIX 2 2 LEU A 13 TYR A 19 1 7 HELIX 3 3 GLY B 8 ARG B 22 5 15

SSBOND 1 CYS A 6 CYS A 11 1555 1555 2.02 SSBOND 2 CYS A 7 CYS B 7 1555 1555 2.03 SSBOND 3 CYS A 20 CYS B 19 1555 1555 2.03

CRYST1 78.774 78.774 78.774 90.00 90.00 90.00 I 21 3 24

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 0.012694 0.000000 0.000000 0.00000

SCALE2 0.000000 0.012694 0.000000 0.00000

SCALE3 0.000000 0.000000 0.012694 0.00000