HEADER MEMBRANE PROTEIN 04-SEP-12 4GXS TITLE LIGAND BINDING DOMAIN OF GLUA2 (AMPA/GLUTAMATE RECEPTOR) BOUND TO (-)- TITLE 2 KAITOCEPHALIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: GLUTAMATE RECEPTOR 2; COMPND 3 CHAIN: B, D; COMPND 4 FRAGMENT: UNP RESIDUES 652-794; COMPND 5 SYNONYM: GLUR-2, AMPA-SELECTIVE GLUTAMATE RECEPTOR 2, GLUR-B, GLUR- COMPND 6 K2, GLUTAMATE RECEPTOR IONOTROPIC, AMPA 2, GLUA2; COMPND 7 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: RATTUS NORVEGICUS; SOURCE 3 ORGANISM_COMMON: BROWN RAT,RAT,RATS; SOURCE 4 ORGANISM_TAXID: 10116; SOURCE 5 GENE: GLUR2, GRIA2, GRIA2; GLUA2; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: ORIGAMI B (DE3); SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PET-22B(+) KEYWDS GLUTAMATE RECEPTOR, GLUA2, GLUR2, AMPA RECEPTOR, NEUROTRANSMITTER KEYWDS 2 RECEPTOR, (-)-KAITOCEPHALIN, MEMBRANE PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR A.H.AHMED,R.E.OSWALD REVDAT 5 13-SEP-23 4GXS 1 REMARK SEQADV LINK REVDAT 4 02-AUG-17 4GXS 1 SOURCE REVDAT 3 19-JUN-13 4GXS 1 JRNL REVDAT 2 07-NOV-12 4GXS 1 JRNL REVDAT 1 17-OCT-12 4GXS 0 JRNL AUTH A.H.AHMED,M.HAMADA,T.SHINADA,Y.OHFUNE,L.WEERASINGHE, JRNL AUTH 2 P.P.GARNER,R.E.OSWALD JRNL TITL THE STRUCTURE OF (-)-KAITOCEPHALIN BOUND TO THE LIGAND JRNL TITL 2 BINDING DOMAIN OF THE JRNL TITL 3 (S)-ALPHA-AMINO-3-HYDROXY-5-METHYL-4-ISOXAZOLEPROPIONIC ACID JRNL TITL 4 (AMPA)/GLUTAMATE RECEPTOR, GLUA2. JRNL REF J.BIOL.CHEM. V. 287 41007 2012 JRNL REFN ISSN 0021-9258 JRNL PMID 23076153 JRNL DOI 10.1074/JBC.M112.416362 REMARK 2 REMARK 2 RESOLUTION. 1.96 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (PHENIX.REFINE) 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 : ML REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.96 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 34.39 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 0.120 REMARK 3 COMPLETENESS FOR RANGE (%) : 96.3 REMARK 3 NUMBER OF REFLECTIONS : 40445 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.189 REMARK 3 R VALUE (WORKING SET) : 0.187 REMARK 3 FREE R VALUE : 0.225 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.810 REMARK 3 FREE R VALUE TEST SET COUNT : 1946 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 34.3937 - 4.7282 0.98 3023 152 0.1869 0.2059 REMARK 3 2 4.7282 - 3.7544 1.00 2895 146 0.1551 0.1840 REMARK 3 3 3.7544 - 3.2803 1.00 2872 145 0.1744 0.2092 REMARK 3 4 3.2803 - 2.9805 0.99 2872 142 0.1930 0.2123 REMARK 3 5 2.9805 - 2.7670 0.98 2780 142 0.2107 0.2599 REMARK 3 6 2.7670 - 2.6039 0.98 2781 140 0.1988 0.2600 REMARK 3 7 2.6039 - 2.4736 0.97 2739 136 0.1892 0.2394 REMARK 3 8 2.4736 - 2.3659 0.95 2714 141 0.1885 0.2531 REMARK 3 9 2.3659 - 2.2748 0.97 2729 137 0.1813 0.2286 REMARK 3 10 2.2748 - 2.1964 0.96 2711 136 0.1807 0.2815 REMARK 3 11 2.1964 - 2.1277 0.96 2684 137 0.1908 0.2504 REMARK 3 12 2.1277 - 2.0669 0.95 2691 133 0.1937 0.2533 REMARK 3 13 2.0669 - 2.0125 0.92 2583 135 0.1938 0.2516 REMARK 3 14 2.0125 - 1.9634 0.87 2425 124 0.2138 0.2843 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.11 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : 0.37 REMARK 3 B_SOL : 53.70 REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.260 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 21.990 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) : 5.14760 REMARK 3 B22 (A**2) : -2.18450 REMARK 3 B33 (A**2) : -2.96310 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 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 : 0.010 4168 REMARK 3 ANGLE : 1.312 5612 REMARK 3 CHIRALITY : 0.087 613 REMARK 3 PLANARITY : 0.006 693 REMARK 3 DIHEDRAL : 19.644 1600 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL 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 4GXS COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 17-SEP-12. REMARK 100 THE DEPOSITION ID IS D_1000074766. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 28-JUN-12 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : CHESS REMARK 200 BEAMLINE : A1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.977 REMARK 200 MONOCHROMATOR : RH COATED SI REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 210 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-3000 REMARK 200 DATA SCALING SOFTWARE : HKL-3000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 41806 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.963 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 200 DATA REDUNDANCY : 6.200 REMARK 200 R MERGE (I) : 0.08600 REMARK 200 R SYM (I) : 0.08600 REMARK 200 FOR THE DATA SET : 14.2670 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.96 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.00 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 REMARK 200 DATA REDUNDANCY IN SHELL : 5.10 REMARK 200 R MERGE FOR SHELL (I) : 0.62200 REMARK 200 R SYM FOR SHELL (I) : 0.62200 REMARK 200 FOR SHELL : 4.118 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHENIX REMARK 200 STARTING MODEL: PDB ENTRY 1FTL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 50.62 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.49 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 16-18% PEG 8K, 0.1 M SODIUM REMARK 280 CACODYLATE, 0.1-0.15 M ZINC ACETATE, PH 6.5, VAPOR DIFFUSION, REMARK 280 HANGING DROP, TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 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 -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 48.37050 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 60.73300 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 48.37050 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 60.73300 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: 1780 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 24690 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -7.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: B, D 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 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 THR B 131 OG1 CG2 REMARK 470 CYS B 261 O REMARK 470 GLU D 132 CG CD OE1 OE2 REMARK 470 CYS D 261 O 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 ZN B 302 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU B 42 OE1 REMARK 620 2 HIS B 46 NE2 98.6 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 ZN D 302 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU D 42 OE1 REMARK 620 2 HIS D 46 NE2 103.5 REMARK 620 N 1 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE 0YS B 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN B 302 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE 0YS D 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN D 302 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN D 303 DBREF 4GXS B 4 117 UNP P19491 GRIA2_RAT 414 527 DBREF 4GXS B 120 261 UNP P19491 GRIA2_RAT 653 794 DBREF 4GXS D 4 117 UNP P19491 GRIA2_RAT 414 527 DBREF 4GXS D 120 261 UNP P19491 GRIA2_RAT 653 794 SEQADV 4GXS GLY B 118 UNP P19491 LINKER SEQADV 4GXS THR B 119 UNP P19491 LINKER SEQADV 4GXS GLY D 118 UNP P19491 LINKER SEQADV 4GXS THR D 119 UNP P19491 LINKER SEQRES 1 B 258 LYS THR VAL VAL VAL THR THR ILE LEU GLU SER PRO TYR SEQRES 2 B 258 VAL MET MET LYS LYS ASN HIS GLU MET LEU GLU GLY ASN SEQRES 3 B 258 GLU ARG TYR GLU GLY TYR CYS VAL ASP LEU ALA ALA GLU SEQRES 4 B 258 ILE ALA LYS HIS CYS GLY PHE LYS TYR LYS LEU THR ILE SEQRES 5 B 258 VAL GLY ASP GLY LYS TYR GLY ALA ARG ASP ALA ASP THR SEQRES 6 B 258 LYS ILE TRP ASN GLY MET VAL GLY GLU LEU VAL TYR GLY SEQRES 7 B 258 LYS ALA ASP ILE ALA ILE ALA PRO LEU THR ILE THR LEU SEQRES 8 B 258 VAL ARG GLU GLU VAL ILE ASP PHE SER LYS PRO PHE MET SEQRES 9 B 258 SER LEU GLY ILE SER ILE MET ILE LYS LYS GLY THR PRO SEQRES 10 B 258 ILE GLU SER ALA GLU ASP LEU SER LYS GLN THR GLU ILE SEQRES 11 B 258 ALA TYR GLY THR LEU ASP SER GLY SER THR LYS GLU PHE SEQRES 12 B 258 PHE ARG ARG SER LYS ILE ALA VAL PHE ASP LYS MET TRP SEQRES 13 B 258 THR TYR MET ARG SER ALA GLU PRO SER VAL PHE VAL ARG SEQRES 14 B 258 THR THR ALA GLU GLY VAL ALA ARG VAL ARG LYS SER LYS SEQRES 15 B 258 GLY LYS TYR ALA TYR LEU LEU GLU SER THR MET ASN GLU SEQRES 16 B 258 TYR ILE GLU GLN ARG LYS PRO CYS ASP THR MET LYS VAL SEQRES 17 B 258 GLY GLY ASN LEU ASP SER LYS GLY TYR GLY ILE ALA THR SEQRES 18 B 258 PRO LYS GLY SER SER LEU GLY ASN ALA VAL ASN LEU ALA SEQRES 19 B 258 VAL LEU LYS LEU ASN GLU GLN GLY LEU LEU ASP LYS LEU SEQRES 20 B 258 LYS ASN LYS TRP TRP TYR ASP LYS GLY GLU CYS SEQRES 1 D 258 LYS THR VAL VAL VAL THR THR ILE LEU GLU SER PRO TYR SEQRES 2 D 258 VAL MET MET LYS LYS ASN HIS GLU MET LEU GLU GLY ASN SEQRES 3 D 258 GLU ARG TYR GLU GLY TYR CYS VAL ASP LEU ALA ALA GLU SEQRES 4 D 258 ILE ALA LYS HIS CYS GLY PHE LYS TYR LYS LEU THR ILE SEQRES 5 D 258 VAL GLY ASP GLY LYS TYR GLY ALA ARG ASP ALA ASP THR SEQRES 6 D 258 LYS ILE TRP ASN GLY MET VAL GLY GLU LEU VAL TYR GLY SEQRES 7 D 258 LYS ALA ASP ILE ALA ILE ALA PRO LEU THR ILE THR LEU SEQRES 8 D 258 VAL ARG GLU GLU VAL ILE ASP PHE SER LYS PRO PHE MET SEQRES 9 D 258 SER LEU GLY ILE SER ILE MET ILE LYS LYS GLY THR PRO SEQRES 10 D 258 ILE GLU SER ALA GLU ASP LEU SER LYS GLN THR GLU ILE SEQRES 11 D 258 ALA TYR GLY THR LEU ASP SER GLY SER THR LYS GLU PHE SEQRES 12 D 258 PHE ARG ARG SER LYS ILE ALA VAL PHE ASP LYS MET TRP SEQRES 13 D 258 THR TYR MET ARG SER ALA GLU PRO SER VAL PHE VAL ARG SEQRES 14 D 258 THR THR ALA GLU GLY VAL ALA ARG VAL ARG LYS SER LYS SEQRES 15 D 258 GLY LYS TYR ALA TYR LEU LEU GLU SER THR MET ASN GLU SEQRES 16 D 258 TYR ILE GLU GLN ARG LYS PRO CYS ASP THR MET LYS VAL SEQRES 17 D 258 GLY GLY ASN LEU ASP SER LYS GLY TYR GLY ILE ALA THR SEQRES 18 D 258 PRO LYS GLY SER SER LEU GLY ASN ALA VAL ASN LEU ALA SEQRES 19 D 258 VAL LEU LYS LEU ASN GLU GLN GLY LEU LEU ASP LYS LEU SEQRES 20 D 258 LYS ASN LYS TRP TRP TYR ASP LYS GLY GLU CYS HET 0YS B 301 32 HET ZN B 302 1 HET 0YS D 301 32 HET ZN D 302 1 HET ZN D 303 1 HETNAM 0YS (5R)-2-[(1S,2R)-2-AMINO-2-CARBOXY-1-HYDROXYETHYL]-5- HETNAM 2 0YS {(2S)-2-CARBOXY-2-[(3,5-DICHLORO-4-HYDROXYBENZOYL) HETNAM 3 0YS AMINO]ETHYL}-L-PROLINE HETNAM ZN ZINC ION HETSYN 0YS (-)-KAITOCEPHALIN FORMUL 3 0YS 2(C18 H21 CL2 N3 O9) FORMUL 4 ZN 3(ZN 2+) FORMUL 8 HOH *376(H2 O) HELIX 1 1 GLY B 28 GLU B 30 5 3 HELIX 2 2 GLY B 34 GLY B 48 1 15 HELIX 3 3 ASN B 72 TYR B 80 1 9 HELIX 4 4 THR B 93 GLU B 98 1 6 HELIX 5 5 SER B 123 LYS B 129 1 7 HELIX 6 6 GLY B 141 SER B 150 1 10 HELIX 7 7 ILE B 152 SER B 164 1 13 HELIX 8 8 THR B 173 SER B 184 1 12 HELIX 9 9 SER B 194 GLN B 202 1 9 HELIX 10 10 LEU B 230 GLN B 244 1 15 HELIX 11 11 GLY B 245 TYR B 256 1 12 HELIX 12 12 GLY D 28 GLU D 30 5 3 HELIX 13 13 GLY D 34 GLY D 48 1 15 HELIX 14 14 ASN D 72 TYR D 80 1 9 HELIX 15 15 THR D 93 GLU D 98 1 6 HELIX 16 16 SER D 123 LYS D 129 1 7 HELIX 17 17 GLY D 141 SER D 150 1 10 HELIX 18 18 ILE D 152 ALA D 165 1 14 HELIX 19 19 THR D 173 SER D 184 1 12 HELIX 20 20 SER D 194 GLN D 202 1 9 HELIX 21 21 LEU D 230 GLN D 244 1 15 HELIX 22 22 GLY D 245 TYR D 256 1 12 SHEET 1 A 3 TYR B 51 ILE B 55 0 SHEET 2 A 3 VAL B 6 THR B 10 1 N VAL B 8 O THR B 54 SHEET 3 A 3 ILE B 85 ALA B 86 1 O ILE B 85 N THR B 9 SHEET 1 B 2 MET B 18 MET B 19 0 SHEET 2 B 2 TYR B 32 GLU B 33 -1 O GLU B 33 N MET B 18 SHEET 1 C 2 ILE B 100 PHE B 102 0 SHEET 2 C 2 ALA B 223 PRO B 225 -1 O THR B 224 N ASP B 101 SHEET 1 D 2 MET B 107 LEU B 109 0 SHEET 2 D 2 LYS B 218 TYR B 220 -1 O LYS B 218 N LEU B 109 SHEET 1 E 4 ALA B 134 THR B 137 0 SHEET 2 E 4 TYR B 188 GLU B 193 1 O LEU B 191 N GLY B 136 SHEET 3 E 4 ILE B 111 LYS B 116 -1 N SER B 112 O LEU B 192 SHEET 4 E 4 THR B 208 VAL B 211 -1 O MET B 209 N ILE B 115 SHEET 1 F 3 TYR D 51 ILE D 55 0 SHEET 2 F 3 VAL D 6 THR D 10 1 N VAL D 8 O THR D 54 SHEET 3 F 3 ILE D 85 ALA D 86 1 O ILE D 85 N THR D 9 SHEET 1 G 2 MET D 18 MET D 19 0 SHEET 2 G 2 TYR D 32 GLU D 33 -1 O GLU D 33 N MET D 18 SHEET 1 H 2 ILE D 100 PHE D 102 0 SHEET 2 H 2 ALA D 223 PRO D 225 -1 O THR D 224 N ASP D 101 SHEET 1 I 2 MET D 107 LEU D 109 0 SHEET 2 I 2 LYS D 218 TYR D 220 -1 O LYS D 218 N LEU D 109 SHEET 1 J 4 ALA D 134 GLY D 136 0 SHEET 2 J 4 TYR D 188 GLU D 193 1 O LEU D 191 N GLY D 136 SHEET 3 J 4 ILE D 111 LYS D 116 -1 N MET D 114 O TYR D 190 SHEET 4 J 4 THR D 208 VAL D 211 -1 O MET D 209 N ILE D 115 SSBOND 1 CYS B 206 CYS B 261 1555 1555 2.26 SSBOND 2 CYS D 206 CYS D 261 1555 1555 2.24 LINK OE1 GLU B 42 ZN ZN B 302 1555 1555 2.31 LINK NE2 HIS B 46 ZN ZN B 302 1555 1555 2.24 LINK NE2 HIS D 23 ZN ZN D 303 1555 1555 2.28 LINK OE1 GLU D 42 ZN ZN D 302 1555 1555 2.44 LINK NE2 HIS D 46 ZN ZN D 302 1555 1555 2.34 CISPEP 1 SER B 14 PRO B 15 0 0.18 CISPEP 2 GLU B 166 PRO B 167 0 0.76 CISPEP 3 LYS B 204 PRO B 205 0 4.81 CISPEP 4 SER D 14 PRO D 15 0 0.66 CISPEP 5 GLU D 166 PRO D 167 0 7.68 CISPEP 6 LYS D 204 PRO D 205 0 6.48 SITE 1 AC1 15 TYR B 61 GLY B 62 PRO B 89 LEU B 90 SITE 2 AC1 15 THR B 91 THR B 93 ARG B 96 GLY B 141 SITE 3 AC1 15 SER B 142 GLU B 145 GLU B 193 HOH B 454 SITE 4 AC1 15 HOH B 455 HOH B 514 HOH B 550 SITE 1 AC2 2 GLU B 42 HIS B 46 SITE 1 AC3 19 LYS D 60 TYR D 61 GLY D 62 PRO D 89 SITE 2 AC3 19 LEU D 90 THR D 91 THR D 93 ARG D 96 SITE 3 AC3 19 LEU D 138 SER D 140 GLY D 141 SER D 142 SITE 4 AC3 19 GLU D 145 GLU D 193 TYR D 220 HOH D 419 SITE 5 AC3 19 HOH D 484 HOH D 551 HOH D 605 SITE 1 AC4 2 GLU D 42 HIS D 46 SITE 1 AC5 4 HIS B 23 GLU B 30 HIS D 23 GLU D 30 CRYST1 96.741 121.466 48.899 90.00 90.00 90.00 P 21 21 2 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 0.010337 0.000000 0.000000 0.00000 SCALE2 0.000000 0.008233 0.000000 0.00000 SCALE3 0.000000 0.000000 0.020450 0.00000