HEADER IMMUNE SYSTEM 12-APR-04 1T0P TITLE STRUCTURAL BASIS OF ICAM RECOGNITION BY INTEGRIN ALPAHLBETA2 REVEALED TITLE 2 IN THE COMPLEX STRUCTURE OF BINDING DOMAINS OF ICAM-3 AND ALPHALBETA2 TITLE 3 AT 1.65 A COMPND MOL_ID: 1; COMPND 2 MOLECULE: INTEGRIN ALPHA-L; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: I DOMAIN; COMPND 5 SYNONYM: CELL SURFACE GLYCOPROTEIN CD11A; ANTIGEN CD11A (P180); COMPND 6 LYMPHOCYTE FUNCTION-ASSOCIATED ANTIGEN 1; CD11A; COMPND 7 ENGINEERED: YES; COMPND 8 MOL_ID: 2; COMPND 9 MOLECULE: INTERCELLULAR ADHESION MOLECULE-3; COMPND 10 CHAIN: B; COMPND 11 FRAGMENT: DOMAIN 1; COMPND 12 SYNONYM: ICAM-3; ICAM-R; CDW50; CD50 ANTIGEN; COMPND 13 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 8 MOL_ID: 2; SOURCE 9 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 10 ORGANISM_COMMON: HUMAN; SOURCE 11 ORGANISM_TAXID: 9606; SOURCE 12 EXPRESSION_SYSTEM: CRICETULUS GRISEUS; SOURCE 13 EXPRESSION_SYSTEM_COMMON: CHINESE HAMSTER; SOURCE 14 EXPRESSION_SYSTEM_TAXID: 10029; SOURCE 15 EXPRESSION_SYSTEM_CELL: LEC CELLS; SOURCE 16 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID KEYWDS ROSSMANN FOLD; IG-SUPER FAMILY DOMAIN, IMMUNE SYSTEM EXPDTA X-RAY DIFFRACTION AUTHOR G.SONG,Y.T.YANG,J.H.LIU,M.SHIMAOKO,T.A.SPRINGER,J.H.WANG REVDAT 5 27-OCT-21 1T0P 1 SEQADV HETSYN REVDAT 4 29-JUL-20 1T0P 1 COMPND REMARK SEQADV HETNAM REVDAT 4 2 1 LINK SITE REVDAT 3 13-JUL-11 1T0P 1 VERSN REVDAT 2 24-FEB-09 1T0P 1 VERSN REVDAT 1 08-MAR-05 1T0P 0 JRNL AUTH G.SONG,Y.YANG,J.H.LIU,J.M.CASASNOVAS,M.SHIMAOKA, JRNL AUTH 2 T.A.SPRINGER,J.H.WANG JRNL TITL AN ATOMIC RESOLUTION VIEW OF ICAM RECOGNITION IN A COMPLEX JRNL TITL 2 BETWEEN THE BINDING DOMAINS OF ICAM-3 AND INTEGRIN JRNL TITL 3 ALPHALBETA2. JRNL REF PROC.NATL.ACAD.SCI.USA V. 102 3366 2005 JRNL REFN ISSN 0027-8424 JRNL PMID 15728350 JRNL DOI 10.1073/PNAS.0500200102 REMARK 2 REMARK 2 RESOLUTION. 1.66 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 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) : 1.66 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 30.00 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) (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 35869 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.220 REMARK 3 FREE R VALUE : 0.241 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 3578 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 : 2021 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 29 REMARK 3 SOLVENT ATOMS : 169 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) : -3.89900 REMARK 3 B22 (A**2) : -1.31500 REMARK 3 B33 (A**2) : 5.21500 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 COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.22 REMARK 3 ESD FROM SIGMAA (A) : 0.13 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) : 0.24 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.14 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.005 REMARK 3 BOND ANGLES (DEGREES) : 1.243 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 25.21 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.080 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 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : 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 1T0P COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 15-APR-04. REMARK 100 THE DEPOSITION ID IS D_1000022166. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 03-AUG-03 REMARK 200 TEMPERATURE (KELVIN) : 160 REMARK 200 PH : 6.4 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 19-ID REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.97934 REMARK 200 MONOCHROMATOR : SI 220 REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : CUSTOM-MADE REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 35921 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.660 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 94.7 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.66 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.71 REMARK 200 COMPLETENESS FOR SHELL (%) : 92.3 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: MOLECULAR REPLACEMENT 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 (%): 50.70 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.52 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG MME 5000, (NH4)2SO4, PH 6.4, VAPOR REMARK 280 DIFFUSION, HANGING DROP, TEMPERATURE 298K 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 21.23150 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 55.40800 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 33.23550 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 55.40800 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 21.23150 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 33.23550 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 1930 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 12540 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -5.0 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 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 GLU A 301 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 A 174 -111.17 -153.28 REMARK 500 LEU A 204 -139.29 -122.28 REMARK 500 PHE A 292 42.77 34.86 REMARK 500 SER B 15 -161.39 -120.12 REMARK 500 ALA B 16 -113.96 50.00 REMARK 500 LYS B 33 84.53 47.38 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 MG A 901 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 SER A 139 OG REMARK 620 2 SER A 141 OG 91.9 REMARK 620 3 THR A 206 OG1 89.2 175.9 REMARK 620 4 HOH A 909 O 177.1 88.1 90.6 REMARK 620 5 HOH A 943 O 87.1 85.0 99.1 95.7 REMARK 620 6 GLU B 37 OE2 87.2 89.3 86.7 90.0 171.8 REMARK 620 N 1 2 3 4 5 DBREF 1T0P A 128 301 UNP P20701 ITAL_HUMAN 153 326 DBREF 1T0P B 1 86 UNP P32942 ICAM3_HUMAN 30 115 SEQADV 1T0P MET A 127 UNP P20701 INITIATING METHIONINE SEQADV 1T0P CYS A 287 UNP P20701 LYS 312 ENGINEERED MUTATION SEQADV 1T0P CYS A 294 UNP P20701 LYS 319 ENGINEERED MUTATION SEQRES 1 A 175 MET GLY ASN VAL ASP LEU VAL PHE LEU PHE ASP GLY SER SEQRES 2 A 175 MET SER LEU GLN PRO ASP GLU PHE GLN LYS ILE LEU ASP SEQRES 3 A 175 PHE MET LYS ASP VAL MET LYS LYS LEU SER ASN THR SER SEQRES 4 A 175 TYR GLN PHE ALA ALA VAL GLN PHE SER THR SER TYR LYS SEQRES 5 A 175 THR GLU PHE ASP PHE SER ASP TYR VAL LYS TRP LYS ASP SEQRES 6 A 175 PRO ASP ALA LEU LEU LYS HIS VAL LYS HIS MET LEU LEU SEQRES 7 A 175 LEU THR ASN THR PHE GLY ALA ILE ASN TYR VAL ALA THR SEQRES 8 A 175 GLU VAL PHE ARG GLU GLU LEU GLY ALA ARG PRO ASP ALA SEQRES 9 A 175 THR LYS VAL LEU ILE ILE ILE THR ASP GLY GLU ALA THR SEQRES 10 A 175 ASP SER GLY ASN ILE ASP ALA ALA LYS ASP ILE ILE ARG SEQRES 11 A 175 TYR ILE ILE GLY ILE GLY LYS HIS PHE GLN THR LYS GLU SEQRES 12 A 175 SER GLN GLU THR LEU HIS LYS PHE ALA SER LYS PRO ALA SEQRES 13 A 175 SER GLU PHE VAL CYS ILE LEU ASP THR PHE GLU CYS LEU SEQRES 14 A 175 LYS ASP LEU PHE THR GLU SEQRES 1 B 86 GLN GLU PHE LEU LEU ARG VAL GLU PRO GLN ASN PRO VAL SEQRES 2 B 86 LEU SER ALA GLY GLY SER LEU PHE VAL ASN CYS SER THR SEQRES 3 B 86 ASP CYS PRO SER SER GLU LYS ILE ALA LEU GLU THR SER SEQRES 4 B 86 LEU SER LYS GLU LEU VAL ALA SER GLY MET GLY TRP ALA SEQRES 5 B 86 ALA PHE ASN LEU SER ASN VAL THR GLY ASN SER ARG ILE SEQRES 6 B 86 LEU CYS SER VAL TYR CYS ASN GLY SER GLN ILE THR GLY SEQRES 7 B 86 SER SER ASN ILE THR VAL TYR GLY MODRES 1T0P ASN B 23 ASN GLYCOSYLATION SITE MODRES 1T0P ASN B 81 ASN GLYCOSYLATION SITE HET MG A 901 1 HET NAG B 301 14 HET NAG B 302 14 HETNAM MG MAGNESIUM ION HETNAM NAG 2-ACETAMIDO-2-DEOXY-BETA-D-GLUCOPYRANOSE HETSYN NAG N-ACETYL-BETA-D-GLUCOSAMINE; 2-ACETAMIDO-2-DEOXY-BETA- HETSYN 2 NAG D-GLUCOSE; 2-ACETAMIDO-2-DEOXY-D-GLUCOSE; 2-ACETAMIDO- HETSYN 3 NAG 2-DEOXY-GLUCOSE; N-ACETYL-D-GLUCOSAMINE FORMUL 3 MG MG 2+ FORMUL 4 NAG 2(C8 H15 N O6) FORMUL 6 HOH *169(H2 O) HELIX 1 1 GLN A 143 LEU A 161 1 19 HELIX 2 2 ASP A 182 LYS A 190 1 9 HELIX 3 3 ASP A 191 LYS A 197 1 7 HELIX 4 4 ASN A 207 VAL A 219 1 13 HELIX 5 5 ARG A 221 GLY A 225 5 5 HELIX 6 6 ILE A 248 LYS A 252 5 5 HELIX 7 7 THR A 267 HIS A 275 1 9 HELIX 8 8 PRO A 281 PHE A 285 1 5 HELIX 9 9 PHE A 292 PHE A 299 5 8 SHEET 1 A 6 TYR A 177 PHE A 181 0 SHEET 2 A 6 TYR A 166 PHE A 173 -1 N GLN A 172 O LYS A 178 SHEET 3 A 6 VAL A 130 ASP A 137 1 N PHE A 134 O VAL A 171 SHEET 4 A 6 THR A 231 THR A 238 1 O ILE A 235 N VAL A 133 SHEET 5 A 6 ILE A 255 GLY A 260 1 O TYR A 257 N ILE A 236 SHEET 6 A 6 VAL A 286 ILE A 288 1 O CYS A 287 N GLY A 260 SHEET 1 B 4 LEU B 5 GLU B 8 0 SHEET 2 B 4 SER B 19 THR B 26 -1 O ASN B 23 N GLU B 8 SHEET 3 B 4 TRP B 51 SER B 57 -1 O PHE B 54 N VAL B 22 SHEET 4 B 4 SER B 41 GLY B 48 -1 N ALA B 46 O ALA B 53 SHEET 1 C 4 VAL B 13 LEU B 14 0 SHEET 2 C 4 SER B 74 VAL B 84 1 O THR B 83 N LEU B 14 SHEET 3 C 4 SER B 63 CYS B 71 -1 N CYS B 71 O SER B 74 SHEET 4 C 4 GLU B 32 GLU B 37 -1 N GLU B 37 O LEU B 66 SSBOND 1 CYS A 287 CYS A 294 1555 1555 2.04 SSBOND 2 CYS B 24 CYS B 67 1555 1555 2.02 SSBOND 3 CYS B 28 CYS B 71 1555 1555 2.03 LINK ND2 ASN B 23 C1 NAG B 301 1555 1555 1.45 LINK ND2 ASN B 81 C1 NAG B 302 1555 1555 1.45 LINK OG SER A 139 MG MG A 901 1555 1555 2.14 LINK OG SER A 141 MG MG A 901 1555 1555 2.17 LINK OG1 THR A 206 MG MG A 901 1555 1555 2.15 LINK MG MG A 901 O HOH A 909 1555 1555 2.19 LINK MG MG A 901 O HOH A 943 1555 1555 2.08 LINK MG MG A 901 OE2 GLU B 37 1555 1555 2.19 CISPEP 1 LYS A 280 PRO A 281 0 0.15 CISPEP 2 GLU B 8 PRO B 9 0 -0.11 CRYST1 42.463 66.471 110.816 90.00 90.00 90.00 P 21 21 21 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 0.023550 0.000000 0.000000 0.00000 SCALE2 0.000000 0.015044 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009024 0.00000