HEADER LIGAND BINDING PROTEIN 14-APR-99 1QFT TITLE HISTAMINE BINDING PROTEIN FROM FEMALE BROWN EAR RHIPICEPHALUS TITLE 2 APPENDICULATUS COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEIN (FEMALE-SPECIFIC HISTAMINE BINDING PROTEIN 2); COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: RHIPICEPHALUS APPENDICULATUS; SOURCE 3 ORGANISM_TAXID: 34631; SOURCE 4 ORGAN: SALIVARY GLAND; SOURCE 5 EXPRESSION_SYSTEM: SPODOPTERA; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 7106; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: SF21; SOURCE 8 EXPRESSION_SYSTEM_CELL_LINE: SPODOPTERA; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PACC129.1 KEYWDS LIPOCALIN, LIGAND BINDING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR G.C.PAESEN,P.L.ADAMS,K.HARLOS,P.A.NUTTAL,D.I.STUART REVDAT 5 16-OCT-24 1QFT 1 REMARK REVDAT 4 27-DEC-23 1QFT 1 REMARK SEQADV REVDAT 3 24-FEB-09 1QFT 1 VERSN REVDAT 2 01-APR-03 1QFT 1 JRNL REVDAT 1 19-APR-00 1QFT 0 JRNL AUTH G.C.PAESEN,P.L.ADAMS,K.HARLOS,P.A.NUTTALL,D.I.STUART JRNL TITL TICK HISTAMINE-BINDING PROTEINS: ISOLATION, CLONING, AND JRNL TITL 2 THREE-DIMENSIONAL STRUCTURE. JRNL REF MOL.CELL V. 3 661 1999 JRNL REFN ISSN 1097-2765 JRNL PMID 10360182 JRNL DOI 10.1016/S1097-2765(00)80359-7 REMARK 2 REMARK 2 RESOLUTION. 1.25 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.1 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.25 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 86.3 REMARK 3 NUMBER OF REFLECTIONS : 109070 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING SET) : 0.184 REMARK 3 FREE R VALUE : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL 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 : 2744 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 32 REMARK 3 SOLVENT ATOMS : 529 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) : 0.013 REMARK 3 BOND ANGLES (DEGREES) : 1.500 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 1QFT COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 16-APR-99. REMARK 100 THE DEPOSITION ID IS D_1000000847. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.5 REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : NSLS REMARK 200 BEAMLINE : X12C REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.072 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD 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 : 108735 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.250 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 86.3 REMARK 200 DATA REDUNDANCY : 5.200 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.04400 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: MIR REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 57.12 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.87 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 6.5 REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 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 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 38.71000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 39.26000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 37.39500 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 39.26000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 38.71000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 37.39500 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 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 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 ASN B 1 REMARK 465 ILE B 172 REMARK 465 ALA B 173 REMARK 465 ALA B 174 REMARK 465 ALA B 175 REMARK 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 GLU B 171 CA C O CB CG CD OE1 REMARK 470 GLU B 171 OE2 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 O HOH A 442 O HOH A 710 1.50 REMARK 500 O HOH A 510 O HOH A 579 1.55 REMARK 500 O HOH A 718 O HOH A 730 1.74 REMARK 500 O HOH A 612 O HOH A 686 1.80 REMARK 500 CE MET A 52 O HOH A 485 1.81 REMARK 500 O HOH A 545 O HOH A 606 1.92 REMARK 500 OD2 ASP A 55 O HOH A 714 1.99 REMARK 500 O HOH A 454 O HOH A 710 2.02 REMARK 500 NE ARG B 159 O HOH B 524 2.03 REMARK 500 NZ LYS A 83 O HOH A 720 2.08 REMARK 500 O HOH A 632 O HOH A 723 2.08 REMARK 500 O HOH B 500 O HOH B 646 2.18 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 O ALA A 173 O HOH B 602 4565 1.79 REMARK 500 N ALA A 175 OE2 GLU B 66 4565 1.85 REMARK 500 C ALA A 173 O HOH B 602 4565 2.02 REMARK 500 CA ALA A 175 OE2 GLU B 66 4565 2.05 REMARK 500 O HOH A 689 O HOH B 726 4565 2.18 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 70 CG - SD - CE ANGL. DEV. = -10.1 DEGREES REMARK 500 ARG B 159 NE - CZ - NH2 ANGL. DEV. = -3.1 DEGREES 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 VAL A 164 -78.67 -118.46 REMARK 500 ALA A 173 -154.27 96.97 REMARK 500 ALA B 168 -5.34 -56.00 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 HSM A 176 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HSM A 177 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HSM B 176 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HSM B 177 DBREF 1QFT A 1 171 UNP O77421 HBP2_RHIAP 20 190 DBREF 1QFT B 1 171 UNP O77421 HBP2_RHIAP 20 190 SEQADV 1QFT ILE A 172 UNP O77421 INSERTION SEQADV 1QFT ALA A 173 UNP O77421 INSERTION SEQADV 1QFT ALA A 174 UNP O77421 INSERTION SEQADV 1QFT ALA A 175 UNP O77421 INSERTION SEQADV 1QFT ILE B 172 UNP O77421 INSERTION SEQADV 1QFT ALA B 173 UNP O77421 INSERTION SEQADV 1QFT ALA B 174 UNP O77421 INSERTION SEQADV 1QFT ALA B 175 UNP O77421 INSERTION SEQRES 1 A 175 ASN GLN PRO ASP TRP ALA ASP GLU ALA ALA ASN GLY ALA SEQRES 2 A 175 HIS GLN ASP ALA TRP LYS SER LEU LYS ALA ASP VAL GLU SEQRES 3 A 175 ASN VAL TYR TYR MET VAL LYS ALA THR TYR LYS ASN ASP SEQRES 4 A 175 PRO VAL TRP GLY ASN ASP PHE THR CYS VAL GLY VAL MET SEQRES 5 A 175 ALA ASN ASP VAL ASN GLU ASP GLU LYS SER ILE GLN ALA SEQRES 6 A 175 GLU PHE LEU PHE MET ASN ASN ALA ASP THR ASN MET GLN SEQRES 7 A 175 PHE ALA THR GLU LYS VAL THR ALA VAL LYS MET TYR GLY SEQRES 8 A 175 TYR ASN ARG GLU ASN ALA PHE ARG TYR GLU THR GLU ASP SEQRES 9 A 175 GLY GLN VAL PHE THR ASP VAL ILE ALA TYR SER ASP ASP SEQRES 10 A 175 ASN CYS ASP VAL ILE TYR VAL PRO GLY THR ASP GLY ASN SEQRES 11 A 175 GLU GLU GLY TYR GLU LEU TRP THR THR ASP TYR ASP ASN SEQRES 12 A 175 ILE PRO ALA ASN CYS LEU ASN LYS PHE ASN GLU TYR ALA SEQRES 13 A 175 VAL GLY ARG GLU THR ARG ASP VAL PHE THR SER ALA CYS SEQRES 14 A 175 LEU GLU ILE ALA ALA ALA SEQRES 1 B 175 ASN GLN PRO ASP TRP ALA ASP GLU ALA ALA ASN GLY ALA SEQRES 2 B 175 HIS GLN ASP ALA TRP LYS SER LEU LYS ALA ASP VAL GLU SEQRES 3 B 175 ASN VAL TYR TYR MET VAL LYS ALA THR TYR LYS ASN ASP SEQRES 4 B 175 PRO VAL TRP GLY ASN ASP PHE THR CYS VAL GLY VAL MET SEQRES 5 B 175 ALA ASN ASP VAL ASN GLU ASP GLU LYS SER ILE GLN ALA SEQRES 6 B 175 GLU PHE LEU PHE MET ASN ASN ALA ASP THR ASN MET GLN SEQRES 7 B 175 PHE ALA THR GLU LYS VAL THR ALA VAL LYS MET TYR GLY SEQRES 8 B 175 TYR ASN ARG GLU ASN ALA PHE ARG TYR GLU THR GLU ASP SEQRES 9 B 175 GLY GLN VAL PHE THR ASP VAL ILE ALA TYR SER ASP ASP SEQRES 10 B 175 ASN CYS ASP VAL ILE TYR VAL PRO GLY THR ASP GLY ASN SEQRES 11 B 175 GLU GLU GLY TYR GLU LEU TRP THR THR ASP TYR ASP ASN SEQRES 12 B 175 ILE PRO ALA ASN CYS LEU ASN LYS PHE ASN GLU TYR ALA SEQRES 13 B 175 VAL GLY ARG GLU THR ARG ASP VAL PHE THR SER ALA CYS SEQRES 14 B 175 LEU GLU ILE ALA ALA ALA HET HSM A 176 8 HET HSM A 177 8 HET HSM B 176 8 HET HSM B 177 8 HETNAM HSM HISTAMINE FORMUL 3 HSM 4(C5 H9 N3) FORMUL 7 HOH *529(H2 O) HELIX 1 1 GLU A 8 HIS A 14 1 7 HELIX 2 2 ALA A 17 GLU A 26 1 10 HELIX 3 3 ALA A 146 TYR A 155 1 10 HELIX 4 4 SER A 167 CYS A 169 5 3 HELIX 5 5 GLU B 8 HIS B 14 1 7 HELIX 6 6 ALA B 17 ASP B 24 1 8 HELIX 7 7 ALA B 146 TYR B 155 1 10 SHEET 1 A 8 GLY A 50 ASN A 54 0 SHEET 2 A 8 SER A 62 PHE A 69 -1 N LEU A 68 O GLY A 50 SHEET 3 A 8 GLN A 78 VAL A 87 -1 N VAL A 84 O ILE A 63 SHEET 4 A 8 ALA A 97 THR A 102 -1 N GLU A 101 O LYS A 83 SHEET 5 A 8 VAL A 107 ASP A 116 -1 N ASP A 110 O PHE A 98 SHEET 6 A 8 CYS A 119 VAL A 124 -1 N TYR A 123 O VAL A 111 SHEET 7 A 8 GLY A 133 THR A 138 -1 N TRP A 137 O ASP A 120 SHEET 8 A 8 TYR A 30 ALA A 34 -1 N LYS A 33 O LEU A 136 SHEET 1 B 8 TYR B 30 ALA B 34 0 SHEET 2 B 8 GLY B 133 THR B 138 -1 N THR B 138 O TYR B 30 SHEET 3 B 8 CYS B 119 VAL B 124 -1 N VAL B 124 O GLY B 133 SHEET 4 B 8 VAL B 107 ASP B 116 -1 N ASP B 116 O CYS B 119 SHEET 5 B 8 ALA B 97 THR B 102 -1 N TYR B 100 O PHE B 108 SHEET 6 B 8 GLN B 78 VAL B 87 -1 N VAL B 87 O ALA B 97 SHEET 7 B 8 SER B 62 PHE B 69 -1 N PHE B 69 O GLN B 78 SHEET 8 B 8 GLY B 50 ASN B 57 -1 N ASN B 57 O SER B 62 SSBOND 1 CYS A 48 CYS A 169 1555 1555 2.03 SSBOND 2 CYS A 119 CYS A 148 1555 1555 2.04 SSBOND 3 CYS B 48 CYS B 169 1555 1555 2.03 SSBOND 4 CYS B 119 CYS B 148 1555 1555 2.06 SITE 1 AC1 8 SER A 20 ASP A 24 TYR A 29 VAL A 51 SITE 2 AC1 8 PHE A 98 TYR A 100 ASP A 120 TRP A 137 SITE 1 AC2 11 TYR A 36 ASP A 39 VAL A 41 TRP A 42 SITE 2 AC2 11 GLU A 82 TYR A 100 PHE A 108 ASP A 110 SITE 3 AC2 11 VAL A 124 GLU A 135 HOH A 201 SITE 1 AC3 8 SER B 20 ASP B 24 TYR B 29 VAL B 51 SITE 2 AC3 8 PHE B 98 TYR B 100 ASP B 120 TRP B 137 SITE 1 AC4 9 TYR B 36 ASP B 39 TRP B 42 GLU B 82 SITE 2 AC4 9 TYR B 100 ASP B 110 VAL B 124 GLU B 135 SITE 3 AC4 9 HOH B 205 CRYST1 77.420 74.790 78.520 90.00 90.00 90.00 P 21 21 21 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 0.012916 0.000000 0.000000 0.00000 SCALE2 0.000000 0.013371 0.000000 0.00000 SCALE3 0.000000 0.000000 0.012736 0.00000