HEADER CELL ADHESION 11-MAY-16 5B5K TITLE CRYSTAL STRUCTURE OF IZUMO1, THE MAMMALIAN SPERM LIGAND FOR EGG JUNO COMPND MOL_ID: 1; COMPND 2 MOLECULE: IZUMO SPERM-EGG FUSION PROTEIN 1; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: UNP RESIDUES 22-257; COMPND 5 SYNONYM: OOCYTE BINDING/FUSION FACTOR,OBF,SPERM-SPECIFIC PROTEIN COMPND 6 IZUMO; COMPND 7 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: MUS MUSCULUS; SOURCE 3 ORGANISM_COMMON: MOUSE; SOURCE 4 ORGANISM_TAXID: 10090; SOURCE 5 GENE: IZUMO1; SOURCE 6 EXPRESSION_SYSTEM: HOMO SAPIENS; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 9606; SOURCE 8 EXPRESSION_SYSTEM_CELL_LINE: HEK-293S; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PHLSEC KEYWDS CELL ADHESION, FERTILIZATION, EGG RECEPTOR, GAMETE ADHESION, SPERM- KEYWDS 2 EGG MEMBRANE FUSION EXPDTA X-RAY DIFFRACTION AUTHOR K.NISHIMURA,L.HAN,D.DE SANCTIS,L.JOVINE REVDAT 4 08-NOV-23 5B5K 1 HETSYN REVDAT 3 29-JUL-20 5B5K 1 COMPND JRNL REMARK HETNAM REVDAT 3 2 1 LINK SITE REVDAT 2 03-AUG-16 5B5K 1 JRNL REVDAT 1 06-JUL-16 5B5K 0 JRNL AUTH K.NISHIMURA,L.HAN,E.BIANCHI,G.J.WRIGHT,D.DE SANCTIS,L.JOVINE JRNL TITL THE STRUCTURE OF SPERM IZUMO1 REVEALS UNEXPECTED JRNL TITL 2 SIMILARITIES WITH PLASMODIUM INVASION PROTEINS. JRNL REF CURR.BIOL. V. 26 R661 2016 JRNL REFN ISSN 0960-9822 JRNL PMID 27374339 JRNL DOI 10.1016/J.CUB.2016.06.028 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH L.HAN,K.NISHIMURA,H.SADAT AL HOSSEINI,E.BIANCHI,G.J.WRIGHT, REMARK 1 AUTH 2 L.JOVINE REMARK 1 TITL DIVERGENT EVOLUTION OF VITAMIN B9 BINDING UNDERLIES REMARK 1 TITL 2 JUNO-MEDIATED ADHESION OF MAMMALIAN GAMETES. REMARK 1 REF CURR. BIOL. V. 26 R100 2016 REMARK 1 REFN ISSN 1879-0445 REMARK 1 PMID 26859261 REMARK 1 DOI 10.1016/J.CUB.2015.12.034 REMARK 1 REFERENCE 2 REMARK 1 AUTH E.BIANCHI,B.DOE,D.GOULDING,G.J.WRIGHT REMARK 1 TITL JUNO IS THE EGG IZUMO RECEPTOR AND IS ESSENTIAL FOR REMARK 1 TITL 2 MAMMALIAN FERTILIZATION. REMARK 1 REF NATURE V. 508 483 2014 REMARK 1 REFN ESSN 1476-4687 REMARK 1 PMID 24739963 REMARK 1 DOI 10.1038/NATURE13203 REMARK 1 REFERENCE 3 REMARK 1 AUTH N.INOUE,M.IKAWA,A.ISOTANI,M.OKABE REMARK 1 TITL THE IMMUNOGLOBULIN SUPERFAMILY PROTEIN IZUMO IS REQUIRED FOR REMARK 1 TITL 2 SPERM TO FUSE WITH EGGS. REMARK 1 REF NATURE V. 434 234 2005 REMARK 1 REFN ESSN 1476-4687 REMARK 1 PMID 15759005 REMARK 1 DOI 10.1038/NATURE03362 REMARK 2 REMARK 2 RESOLUTION. 2.50 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.10.1_2155 REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 43.84 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.350 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 3 NUMBER OF REFLECTIONS : 13384 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.258 REMARK 3 R VALUE (WORKING SET) : 0.257 REMARK 3 FREE R VALUE : 0.281 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.010 REMARK 3 FREE R VALUE TEST SET COUNT : 670 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 43.8469 - 4.2739 1.00 2680 142 0.2083 0.2220 REMARK 3 2 4.2739 - 3.3927 1.00 2543 133 0.2437 0.2801 REMARK 3 3 3.3927 - 2.9640 1.00 2509 132 0.3138 0.3669 REMARK 3 4 2.9640 - 2.6930 1.00 2509 133 0.3478 0.3286 REMARK 3 5 2.6930 - 2.5000 1.00 2473 130 0.3711 0.4054 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : NULL REMARK 3 SOLVENT RADIUS : 1.11 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : NULL REMARK 3 B_SOL : NULL REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.460 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 31.930 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 59.20 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 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.004 1978 REMARK 3 ANGLE : 0.809 2679 REMARK 3 CHIRALITY : 0.051 299 REMARK 3 PLANARITY : 0.004 335 REMARK 3 DIHEDRAL : 12.033 1203 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : 2 REMARK 3 TLS GROUP : 1 REMARK 3 SELECTION: CHAIN A AND (RESID 22 THROUGH 160 ) REMARK 3 ORIGIN FOR THE GROUP (A): 30.5318 41.8295 32.5578 REMARK 3 T TENSOR REMARK 3 T11: 0.5918 T22: 0.5528 REMARK 3 T33: 0.6090 T12: -0.0048 REMARK 3 T13: -0.0119 T23: -0.0052 REMARK 3 L TENSOR REMARK 3 L11: 4.4150 L22: 0.0300 REMARK 3 L33: 3.1652 L12: 0.1886 REMARK 3 L13: -3.6133 L23: -0.0481 REMARK 3 S TENSOR REMARK 3 S11: 0.1326 S12: -0.1940 S13: 0.0372 REMARK 3 S21: 0.0556 S22: -0.0412 S23: -0.0229 REMARK 3 S31: -0.0746 S32: 0.2191 S33: 0.0003 REMARK 3 TLS GROUP : 2 REMARK 3 SELECTION: CHAIN A AND (RESID 161 THROUGH 256 ) REMARK 3 ORIGIN FOR THE GROUP (A): -5.8823 42.0207 57.5589 REMARK 3 T TENSOR REMARK 3 T11: 0.6185 T22: 0.5620 REMARK 3 T33: 0.5399 T12: -0.0755 REMARK 3 T13: -0.0220 T23: -0.0025 REMARK 3 L TENSOR REMARK 3 L11: 3.1080 L22: 2.4521 REMARK 3 L33: 2.0930 L12: -0.5549 REMARK 3 L13: -0.5830 L23: -0.3848 REMARK 3 S TENSOR REMARK 3 S11: -0.0481 S12: 0.0193 S13: -0.0944 REMARK 3 S21: 0.0845 S22: 0.0233 S23: 0.3453 REMARK 3 S31: 0.0828 S32: -0.1737 S33: 0.0001 REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 5B5K COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 18-MAY-16. REMARK 100 THE DEPOSITION ID IS D_1300000570. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 14-MAY-15 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.6 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ESRF REMARK 200 BEAMLINE : ID29 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.98400 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS 6M-F REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS 20151015 REMARK 200 DATA SCALING SOFTWARE : XDS 20151015 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 13389 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.500 REMARK 200 RESOLUTION RANGE LOW (A) : 43.840 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 200 DATA REDUNDANCY : 12.60 REMARK 200 R MERGE (I) : 0.19480 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 12.1300 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.50 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.59 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 REMARK 200 DATA REDUNDANCY IN SHELL : 10.10 REMARK 200 R MERGE FOR SHELL (I) : 0.22960 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 1.130 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER 2.6.0 REMARK 200 STARTING MODEL: 5JK9 REMARK 200 REMARK 200 REMARK: SQUARE PLATE REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 64.60 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.47 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.2 M AMMONIUM FORMATE PH 6.6, 20% PEG REMARK 280 3350, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 4 2 2 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 -Y,X,Z REMARK 290 4555 Y,-X,Z REMARK 290 5555 -X,Y,-Z REMARK 290 6555 X,-Y,-Z REMARK 290 7555 Y,X,-Z REMARK 290 8555 -Y,-X,-Z REMARK 290 9555 X+1/2,Y+1/2,Z+1/2 REMARK 290 10555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 11555 -Y+1/2,X+1/2,Z+1/2 REMARK 290 12555 Y+1/2,-X+1/2,Z+1/2 REMARK 290 13555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 14555 X+1/2,-Y+1/2,-Z+1/2 REMARK 290 15555 Y+1/2,X+1/2,-Z+1/2 REMARK 290 16555 -Y+1/2,-X+1/2,-Z+1/2 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 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 0.00000 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 0.00000 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 9 1.000000 0.000000 0.000000 51.64000 REMARK 290 SMTRY2 9 0.000000 1.000000 0.000000 51.64000 REMARK 290 SMTRY3 9 0.000000 0.000000 1.000000 69.63500 REMARK 290 SMTRY1 10 -1.000000 0.000000 0.000000 51.64000 REMARK 290 SMTRY2 10 0.000000 -1.000000 0.000000 51.64000 REMARK 290 SMTRY3 10 0.000000 0.000000 1.000000 69.63500 REMARK 290 SMTRY1 11 0.000000 -1.000000 0.000000 51.64000 REMARK 290 SMTRY2 11 1.000000 0.000000 0.000000 51.64000 REMARK 290 SMTRY3 11 0.000000 0.000000 1.000000 69.63500 REMARK 290 SMTRY1 12 0.000000 1.000000 0.000000 51.64000 REMARK 290 SMTRY2 12 -1.000000 0.000000 0.000000 51.64000 REMARK 290 SMTRY3 12 0.000000 0.000000 1.000000 69.63500 REMARK 290 SMTRY1 13 -1.000000 0.000000 0.000000 51.64000 REMARK 290 SMTRY2 13 0.000000 1.000000 0.000000 51.64000 REMARK 290 SMTRY3 13 0.000000 0.000000 -1.000000 69.63500 REMARK 290 SMTRY1 14 1.000000 0.000000 0.000000 51.64000 REMARK 290 SMTRY2 14 0.000000 -1.000000 0.000000 51.64000 REMARK 290 SMTRY3 14 0.000000 0.000000 -1.000000 69.63500 REMARK 290 SMTRY1 15 0.000000 1.000000 0.000000 51.64000 REMARK 290 SMTRY2 15 1.000000 0.000000 0.000000 51.64000 REMARK 290 SMTRY3 15 0.000000 0.000000 -1.000000 69.63500 REMARK 290 SMTRY1 16 0.000000 -1.000000 0.000000 51.64000 REMARK 290 SMTRY2 16 -1.000000 0.000000 0.000000 51.64000 REMARK 290 SMTRY3 16 0.000000 0.000000 -1.000000 69.63500 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 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 HIS A 257 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 HG1 THR A 237 O GLY A 241 1.56 REMARK 500 ND2 ASN A 204 O5 NAG A 301 2.07 REMARK 500 O VAL A 252 O HOH A 401 2.17 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 THR A 39 -60.71 -106.45 REMARK 500 SER A 69 -148.52 67.68 REMARK 500 ALA A 70 -125.00 41.07 REMARK 500 GLU A 132 -60.18 -105.41 REMARK 500 CYS A 135 54.28 39.39 REMARK 500 ASN A 239 -60.43 -122.01 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 5EJN RELATED DB: PDB DBREF 5B5K A 22 257 UNP Q9D9J7 IZUM1_MOUSE 22 257 SEQRES 1 A 236 CYS ILE LYS CYS ASP GLN PHE VAL THR ASP ALA LEU LYS SEQRES 2 A 236 THR PHE GLU ASN THR TYR LEU ASN ASP HIS LEU PRO HIS SEQRES 3 A 236 ASP ILE HIS LYS ASN VAL MET ARG MET VAL ASN HIS GLU SEQRES 4 A 236 VAL SER SER PHE GLY VAL VAL THR SER ALA GLU ASP SER SEQRES 5 A 236 TYR LEU GLY ALA VAL ASP GLU ASN THR LEU GLU GLN ALA SEQRES 6 A 236 THR TRP SER PHE LEU LYS ASP LEU LYS ARG ILE THR ASP SEQRES 7 A 236 SER ASP LEU LYS GLY GLU LEU PHE ILE LYS GLU LEU LEU SEQRES 8 A 236 TRP MET LEU ARG HIS GLN LYS ASP ILE PHE ASN ASN LEU SEQRES 9 A 236 ALA ARG GLN PHE GLN LYS GLU VAL LEU CYS PRO ASN LYS SEQRES 10 A 236 CYS GLY VAL MET SER GLN THR LEU ILE TRP CYS LEU LYS SEQRES 11 A 236 CYS GLU LYS GLN LEU HIS ILE CYS ARG LYS SER LEU ASP SEQRES 12 A 236 CYS GLY GLU ARG HIS ILE GLU VAL HIS ARG SER GLU ASP SEQRES 13 A 236 LEU VAL LEU ASP CYS LEU LEU SER TRP HIS ARG ALA SER SEQRES 14 A 236 LYS GLY LEU THR ASP TYR SER PHE TYR ARG VAL TRP GLU SEQRES 15 A 236 ASN SER SER GLU THR LEU ILE ALA LYS GLY LYS GLU PRO SEQRES 16 A 236 TYR LEU THR LYS SER MET VAL GLY PRO GLU ASP ALA GLY SEQRES 17 A 236 ASN TYR ARG CYS VAL LEU ASP THR ILE ASN GLN GLY HIS SEQRES 18 A 236 ALA THR VAL ILE ARG TYR ASP VAL THR VAL LEU PRO PRO SEQRES 19 A 236 LYS HIS HET NAG A 301 28 HET EPE A 302 32 HETNAM NAG 2-ACETAMIDO-2-DEOXY-BETA-D-GLUCOPYRANOSE HETNAM EPE 4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID 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 HETSYN EPE HEPES FORMUL 2 NAG C8 H15 N O6 FORMUL 3 EPE C8 H18 N2 O4 S FORMUL 4 HOH *28(H2 O) HELIX 1 AA1 ILE A 23 CYS A 25 5 3 HELIX 2 AA2 GLN A 27 HIS A 44 1 18 HELIX 3 AA3 HIS A 47 SER A 62 5 16 HELIX 4 AA4 ALA A 70 LEU A 75 5 6 HELIX 5 AA5 GLU A 80 ASP A 99 1 20 HELIX 6 AA6 GLY A 104 VAL A 133 1 30 HELIX 7 AA7 SER A 185 ARG A 188 5 4 HELIX 8 AA8 PRO A 225 ASP A 227 5 3 SHEET 1 AA1 3 ALA A 77 ASP A 79 0 SHEET 2 AA1 3 VAL A 141 TRP A 148 -1 O ILE A 147 N VAL A 78 SHEET 3 AA1 3 GLU A 153 ARG A 160 -1 O HIS A 157 N GLN A 144 SHEET 1 AA2 5 ASP A 164 HIS A 173 0 SHEET 2 AA2 5 HIS A 242 LEU A 253 1 O ASP A 249 N ARG A 168 SHEET 3 AA2 5 GLY A 229 THR A 237 -1 N CYS A 233 O ILE A 246 SHEET 4 AA2 5 LEU A 193 VAL A 201 -1 N THR A 194 O ASP A 236 SHEET 5 AA2 5 GLU A 207 GLY A 213 -1 O ILE A 210 N PHE A 198 SHEET 1 AA3 2 LEU A 178 ASP A 181 0 SHEET 2 AA3 2 TYR A 217 LYS A 220 -1 O LYS A 220 N LEU A 178 SSBOND 1 CYS A 22 CYS A 149 1555 1555 2.03 SSBOND 2 CYS A 25 CYS A 152 1555 1555 2.04 SSBOND 3 CYS A 135 CYS A 159 1555 1555 2.03 SSBOND 4 CYS A 139 CYS A 165 1555 1555 2.04 SSBOND 5 CYS A 182 CYS A 233 1555 1555 2.02 LINK ND2 ASN A 204 C1 NAG A 301 1555 1555 1.44 CRYST1 103.280 103.280 139.270 90.00 90.00 90.00 I 4 2 2 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 0.009682 0.000000 0.000000 0.00000 SCALE2 0.000000 0.009682 0.000000 0.00000 SCALE3 0.000000 0.000000 0.007180 0.00000