HEADER SIGNALING PROTEIN 20-JAN-00 1DV8 TITLE CRYSTAL STRUCTURE OF THE CARBOHYDRATE RECOGNITION DOMAIN OF TITLE 2 THE H1 SUBUNIT OF THE ASIALOGLYCOPROTEIN RECEPTOR COMPND MOL_ID: 1; COMPND 2 MOLECULE: ASIALOGLYCOPROTEIN RECEPTOR 1; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: CARBOHYDRATE RECOGNITION DOMAIN - H1 SUBUNIT; COMPND 5 SYNONYM: HEPATIC LECTIN H1; 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 ORGAN: LIVER; SOURCE 6 TISSUE: PARENCHYM; SOURCE 7 CELL: HEPATOCYTE; SOURCE 8 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 9 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 10 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 11 EXPRESSION_SYSTEM_PLASMID: PET3B (NOVAGEN) KEYWDS C-TYPE LECTIN CRD, SIGNALING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR M.MEIER,M.D.BIDER,V.N.MALASHKEVICH,M.SPIESS,P.BURKHARD REVDAT 2 24-FEB-09 1DV8 1 VERSN REVDAT 1 26-JUL-00 1DV8 0 JRNL AUTH M.MEIER,M.D.BIDER,V.N.MALASHKEVICH,M.SPIESS, JRNL AUTH 2 P.BURKHARD JRNL TITL CRYSTAL STRUCTURE OF THE CARBOHYDRATE RECOGNITION JRNL TITL 2 DOMAIN OF THE H1 SUBUNIT OF THE ASIALOGLYCOPROTEIN JRNL TITL 3 RECEPTOR. JRNL REF J.MOL.BIOL. V. 300 857 2000 JRNL REFN ISSN 0022-2836 JRNL PMID 10891274 JRNL DOI 10.1006/JMBI.2000.3853 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH A.R.KOLATKAR,A.K.LEUNG,R.ISECKE,R.BROSSMER, REMARK 1 AUTH 2 K.DRICKAMER,W.I.WEIS REMARK 1 TITL MECHANISM OF N-ACETYLGALACTOSAMINE BINDING TO A REMARK 1 TITL 2 C-TYPE ANIMAL LECTIN CARBOHYDRATE-RECOGNITION REMARK 1 TITL 3 DOMAIN REMARK 1 REF J.BIOL.CHEM. V. 273 19502 1998 REMARK 1 REFN ISSN 0021-9258 REMARK 1 DOI 10.1074/JBC.273.31.19502 REMARK 2 REMARK 2 RESOLUTION. 2.30 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 0.5 REMARK 3 AUTHORS : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE- REMARK 3 : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES, PANNU, REMARK 3 : READ,RICE,SIMONSON,WARREN REMARK 3 REMARK 3 REFINEMENT TARGET : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.30 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 19.35 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 959133.460 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 94.1 REMARK 3 NUMBER OF REFLECTIONS : 6425 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) : 0.195 REMARK 3 FREE R VALUE : 0.247 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 8.600 REMARK 3 FREE R VALUE TEST SET COUNT : 551 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.011 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 6 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.30 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.44 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 96.20 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 971 REMARK 3 BIN R VALUE (WORKING SET) : 0.2270 REMARK 3 BIN FREE R VALUE : 0.2710 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 9.50 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 102 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.027 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1072 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 4 REMARK 3 SOLVENT ATOMS : 104 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 24.50 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 23.30 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -1.83000 REMARK 3 B22 (A**2) : 4.20000 REMARK 3 B33 (A**2) : -2.37000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : -7.25000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.23 REMARK 3 ESD FROM SIGMAA (A) : 0.20 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.29 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.25 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.009 REMARK 3 BOND ANGLES (DEGREES) : 1.40 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 24.20 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.89 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 1.310 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 2.030 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.000 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 2.870 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.36 REMARK 3 BSOL : 34.01 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 : PROTEIN_REP.PAR REMARK 3 PARAMETER FILE 2 : ION.PARAM REMARK 3 PARAMETER FILE 3 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : NULL REMARK 3 TOPOLOGY FILE 3 : NULL REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1DV8 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 03-FEB-00. REMARK 100 THE RCSB ID CODE IS RCSB010402. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 25-MAY-97 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.0 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 : ELLIOTT GX-20 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 : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : CCP4 (SCALA) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 7342 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.200 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 95.9 REMARK 200 DATA REDUNDANCY : 2.000 REMARK 200 R MERGE (I) : 0.09300 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 7.2000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.20 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.32 REMARK 200 COMPLETENESS FOR SHELL (%) : 95.9 REMARK 200 DATA REDUNDANCY IN SHELL : 2.00 REMARK 200 R MERGE FOR SHELL (I) : 0.31700 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: NULL REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 50.45 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.48 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 8000, AMMONIUM SULFATE, REMARK 280 CACODYLATE, TRIS-HCL, SODIUM CHLORIDE, CALCIUM CHLORIDE, REMARK 280 LACTOSE, PH 7.0, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE REMARK 280 298K 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 56.86000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 16.23000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 56.86000 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 16.23000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 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: 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 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 CL CL A1004 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 7 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 29 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 66 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 81 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 92 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 ASN A 156 -4.76 81.82 REMARK 500 HIS A 160 116.21 -164.52 REMARK 500 ASN A 234 50.93 -142.79 REMARK 500 REMARK 500 REMARK: NULL 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 88 DISTANCE = 5.67 ANGSTROMS 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 CA A1001 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 242 OD1 REMARK 620 2 ASP A 215 OD1 161.7 REMARK 620 3 ASP A 215 OD2 146.3 50.9 REMARK 620 4 HOH A 3 O 89.8 98.3 88.7 REMARK 620 5 HOH A 10 O 80.7 102.4 79.6 141.1 REMARK 620 6 HOH A 14 O 78.7 119.4 68.9 71.0 70.2 REMARK 620 7 GLU A 252 O 76.2 88.6 118.7 148.2 65.3 131.5 REMARK 620 8 ASP A 253 OD1 95.3 70.9 117.1 76.8 141.3 147.2 76.3 REMARK 620 N 1 2 3 4 5 6 7 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A1002 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLN A 239 OE1 REMARK 620 2 HOH A 13 O 85.3 REMARK 620 3 ASP A 241 OD1 70.6 77.8 REMARK 620 4 GLU A 252 OE2 141.7 98.1 72.9 REMARK 620 5 ASN A 264 OD1 70.0 97.8 140.6 145.6 REMARK 620 6 ASP A 265 O 129.9 136.9 131.9 70.3 77.2 REMARK 620 7 ASP A 265 OD1 76.9 157.5 83.2 87.7 89.2 65.5 REMARK 620 8 HOH A 11 O 126.5 48.6 114.2 79.4 88.7 88.4 153.6 REMARK 620 N 1 2 3 4 5 6 7 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A1003 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 VAL A 190 O REMARK 620 2 GLU A 196 OE1 90.6 REMARK 620 3 GLU A 196 OE2 80.2 51.8 REMARK 620 4 GLU A 277 OE1 81.9 93.1 140.1 REMARK 620 5 HOH A 84 O 115.7 144.7 150.2 69.4 REMARK 620 6 HOH A 20 O 143.8 85.0 68.9 134.1 86.2 REMARK 620 7 GLU A 277 OE2 128.3 76.9 123.1 49.8 68.3 85.5 REMARK 620 8 HOH A 46 O 86.8 131.4 80.0 134.2 76.2 70.1 138.0 REMARK 620 N 1 2 3 4 5 6 7 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 1001 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 1002 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 1003 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 1004 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1BCH RELATED DB: PDB REMARK 900 MUTANT OF MANNOSE BINDING PROTEIN WITH SIMILAR GALACTOSE- REMARK 900 BINDING ACTIVITY AS H1 CRD DBREF 1DV8 A 153 280 UNP P07306 ASGR1_HUMAN 154 281 SEQRES 1 A 128 CYS PRO VAL ASN TRP VAL GLU HIS GLU ARG SER CYS TYR SEQRES 2 A 128 TRP PHE SER ARG SER GLY LYS ALA TRP ALA ASP ALA ASP SEQRES 3 A 128 ASN TYR CYS ARG LEU GLU ASP ALA HIS LEU VAL VAL VAL SEQRES 4 A 128 THR SER TRP GLU GLU GLN LYS PHE VAL GLN HIS HIS ILE SEQRES 5 A 128 GLY PRO VAL ASN THR TRP MET GLY LEU HIS ASP GLN ASN SEQRES 6 A 128 GLY PRO TRP LYS TRP VAL ASP GLY THR ASP TYR GLU THR SEQRES 7 A 128 GLY PHE LYS ASN TRP ARG PRO GLU GLN PRO ASP ASP TRP SEQRES 8 A 128 TYR GLY HIS GLY LEU GLY GLY GLY GLU ASP CYS ALA HIS SEQRES 9 A 128 PHE THR ASP ASP GLY ARG TRP ASN ASP ASP VAL CYS GLN SEQRES 10 A 128 ARG PRO TYR ARG TRP VAL CYS GLU THR GLU LEU HET CA A1001 1 HET CA A1002 1 HET CA A1003 1 HET CL A1004 1 HETNAM CA CALCIUM ION HETNAM CL CHLORIDE ION FORMUL 2 CA 3(CA 2+) FORMUL 5 CL CL 1- FORMUL 6 HOH *104(H2 O) HELIX 1 1 ALA A 173 GLU A 184 1 12 HELIX 2 2 SER A 193 GLY A 205 1 13 SHEET 1 A 6 VAL A 158 HIS A 160 0 SHEET 2 A 6 SER A 163 PHE A 167 -1 O SER A 163 N HIS A 160 SHEET 3 A 6 ARG A 273 GLU A 279 -1 N CYS A 276 O TRP A 166 SHEET 4 A 6 THR A 209 HIS A 214 1 N TRP A 210 O ARG A 273 SHEET 5 A 6 CYS A 254 PHE A 257 -1 N ALA A 255 O LEU A 213 SHEET 6 A 6 TRP A 263 ASP A 266 -1 O ASN A 264 N HIS A 256 SHEET 7 A 6 THR A 209 HIS A 214 0 SHEET 8 A 6 LYS A 221 TRP A 222 -1 N LYS A 221 O HIS A 214 SSBOND 1 CYS A 153 CYS A 164 1555 1555 2.03 SSBOND 2 CYS A 181 CYS A 276 1555 1555 2.03 SSBOND 3 CYS A 254 CYS A 268 1555 1555 2.04 LINK CA CA A1001 OD1 ASP A 242 1555 1555 2.30 LINK CA CA A1001 OD1 ASP A 215 1555 1555 2.70 LINK CA CA A1001 OD2 ASP A 215 1555 1555 2.41 LINK CA CA A1001 O HOH A 3 1555 1555 2.25 LINK CA CA A1001 O HOH A 10 1555 1555 2.31 LINK CA CA A1001 O HOH A 14 1555 1555 2.25 LINK CA CA A1001 O GLU A 252 1555 1555 2.53 LINK CA CA A1001 OD1 ASP A 253 1555 1555 2.35 LINK CA CA A1002 OE1 GLN A 239 1555 1555 2.67 LINK CA CA A1002 O HOH A 13 1555 1555 2.79 LINK CA CA A1002 OD1 ASP A 241 1555 1555 2.47 LINK CA CA A1002 OE2 GLU A 252 1555 1555 2.36 LINK CA CA A1002 OD1 ASN A 264 1555 1555 2.43 LINK CA CA A1002 O ASP A 265 1555 1555 2.43 LINK CA CA A1002 OD1 ASP A 265 1555 1555 2.28 LINK CA CA A1002 O HOH A 11 1555 1555 3.02 LINK CA CA A1003 O VAL A 190 1555 1555 2.19 LINK CA CA A1003 OE1 GLU A 196 1555 1555 2.16 LINK CA CA A1003 OE2 GLU A 196 1555 1555 2.74 LINK CA CA A1003 OE1 GLU A 277 1555 1555 2.69 LINK CA CA A1003 O HOH A 84 1555 1555 2.11 LINK CA CA A1003 O HOH A 20 1555 1555 2.47 LINK CA CA A1003 OE2 GLU A 277 1555 1555 2.49 LINK CA CA A1003 O HOH A 46 1555 1555 2.45 CISPEP 1 GLN A 239 PRO A 240 0 0.14 SITE 1 AC1 7 HOH A 3 HOH A 10 HOH A 14 ASP A 215 SITE 2 AC1 7 ASP A 242 GLU A 252 ASP A 253 SITE 1 AC2 7 HOH A 11 HOH A 13 GLN A 239 ASP A 241 SITE 2 AC2 7 GLU A 252 ASN A 264 ASP A 265 SITE 1 AC3 6 HOH A 20 HOH A 46 HOH A 84 VAL A 190 SITE 2 AC3 6 GLU A 196 GLU A 277 SITE 1 AC4 1 ARG A 270 CRYST1 113.720 32.460 40.820 90.00 91.29 90.00 C 1 2 1 4 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 0.008794 0.000000 0.000198 0.00000 SCALE2 0.000000 0.030807 0.000000 0.00000 SCALE3 0.000000 0.000000 0.024504 0.00000