HEADER IMMUNE SYSTEM 24-AUG-04 1X9Q TITLE 4M5.3 ANTI-FLUORESCEIN SINGLE CHAIN ANTIBODY FRAGMENT (SCFV) COMPND MOL_ID: 1; COMPND 2 MOLECULE: 4M5.3 ANTI-FLUORESCEIN SINGLE CHAIN ANTIBODY FRAGMENT; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: ANTIBODY BINDING FRAGMENT; COMPND 5 SYNONYM: SCFV; 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 EXPRESSION_SYSTEM: SACCHAROMYCES CEREVISIAE; SOURCE 6 EXPRESSION_SYSTEM_COMMON: BAKER'S YEAST; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 4932; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: YVH10; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PRS316; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: GAL1-10 PROMOTER KEYWDS VERY HIGH AFFINITY, ANTIBODY BINDING, ELECTROSTATICS, DIRECTED KEYWDS 2 EVOLUTION, SINGLE CHAIN ANTIBODY, IMMUNE SYSTEM EXPDTA X-RAY DIFFRACTION AUTHOR K.S.MIDELFORT,H.H.HERNANDEZ,S.M.LIPPOW,B.TIDOR,C.L.DRENNAN, AUTHOR 2 K.D.WITTRUP REVDAT 4 23-AUG-23 1X9Q 1 REMARK REVDAT 3 11-OCT-17 1X9Q 1 AUTHOR JRNL REMARK REVDAT 2 24-FEB-09 1X9Q 1 VERSN REVDAT 1 22-MAR-05 1X9Q 0 JRNL AUTH K.S.MIDELFORT,H.H.HERNANDEZ,S.M.LIPPOW,B.TIDOR,C.L.DRENNAN, JRNL AUTH 2 K.D.WITTRUP JRNL TITL SUBSTANTIAL ENERGETIC IMPROVEMENT WITH MINIMAL STRUCTURAL JRNL TITL 2 PERTURBATION IN A HIGH AFFINITY MUTANT ANTIBODY JRNL REF J.MOL.BIOL. V. 343 685 2004 JRNL REFN ISSN 0022-2836 JRNL PMID 15465055 JRNL DOI 10.1016/J.JMB.2004.08.019 REMARK 2 REMARK 2 RESOLUTION. 1.50 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 28.75 REMARK 3 DATA CUTOFF (SIGMA(F)) : 1.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 98.8 REMARK 3 NUMBER OF REFLECTIONS : 40648 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 + TEST SET) : 0.193 REMARK 3 R VALUE (WORKING SET) : 0.165 REMARK 3 FREE R VALUE : 0.193 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 4049 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1787 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 44 REMARK 3 SOLVENT ATOMS : 233 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 OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): NULL REMARK 3 ESU BASED ON FREE R VALUE (A): NULL REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): NULL REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : NULL ; NULL REMARK 3 ANGLE DISTANCE (A) : NULL ; NULL REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : NULL ; NULL REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : NULL ; NULL REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : NULL ; NULL REMARK 3 MULTIPLE TORSION (A) : NULL ; NULL REMARK 3 H-BOND (X...Y) (A) : NULL ; NULL REMARK 3 H-BOND (X-H...Y) (A) : NULL ; NULL REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : NULL ; NULL REMARK 3 PLANAR (DEGREES) : NULL ; NULL REMARK 3 STAGGERED (DEGREES) : NULL ; NULL REMARK 3 TRANSVERSE (DEGREES) : NULL ; 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 OTHER REFINEMENT REMARKS: OF 268 RESIDUES, RESIDUES 14-268 WERE REMARK 3 OBSERVED IN ELECTRON DENSITY MAPS, WITH ONE CHAIN BREAK FROM REMARK 3 RESIDUES 125-148. REMARK 4 REMARK 4 1X9Q COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 30-SEP-04. REMARK 100 THE DEPOSITION ID IS D_1000030116. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 29-JAN-03 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 4.6 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRL REMARK 200 BEAMLINE : BL9-1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9840 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 40648 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.500 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.8 REMARK 200 DATA REDUNDANCY : 7.000 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.03000 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: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: XTALVIEW REMARK 200 STARTING MODEL: PDB ENTRY 1FLR REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 43.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.15 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.15 M SODIUM ACETATE, 0.1 M AMMONIUM REMARK 280 ACETATE, 20% PEG 4000, 10% GLYCEROL, PH 4.6, VAPOR DIFFUSION, REMARK 280 HANGING DROP, TEMPERATURE 277K 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 27.89000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 39.61000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 28.72500 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 39.61000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 27.89000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 28.72500 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 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 ALA A 1 REMARK 465 ALA A 2 REMARK 465 ARG A 3 REMARK 465 PRO A 4 REMARK 465 ASP A 5 REMARK 465 TYR A 6 REMARK 465 LYS A 7 REMARK 465 ASP A 8 REMARK 465 ASP A 9 REMARK 465 ASP A 10 REMARK 465 ASP A 11 REMARK 465 LYS A 12 REMARK 465 ALA A 13 REMARK 465 ILE A 125 REMARK 465 LYS A 126 REMARK 465 SER A 127 REMARK 465 SER A 128 REMARK 465 ALA A 129 REMARK 465 ASP A 130 REMARK 465 ASP A 131 REMARK 465 ALA A 132 REMARK 465 LYS A 133 REMARK 465 LYS A 134 REMARK 465 ASP A 135 REMARK 465 ALA A 136 REMARK 465 ALA A 137 REMARK 465 LYS A 138 REMARK 465 LYS A 139 REMARK 465 ASP A 140 REMARK 465 ASP A 141 REMARK 465 ALA A 142 REMARK 465 LYS A 143 REMARK 465 LYS A 144 REMARK 465 ASP A 145 REMARK 465 ASP A 146 REMARK 465 ALA A 147 REMARK 465 LYS A 148 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 LYS A 149 CG CD CE NZ REMARK 480 REMARK 480 ZERO OCCUPANCY ATOM REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 480 M RES C SSEQI ATOMS REMARK 480 LYS A 154 CD CE NZ 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 SER A 75 O HOH A 1629 1.94 REMARK 500 O LEU A 29 O HOH A 1695 2.15 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 HOH A 1709 O HOH A 1711 3646 1.76 REMARK 500 O HOH A 1578 O HOH A 1610 1455 1.99 REMARK 500 CD GLN A 261 O HOH A 1688 3656 2.19 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 CYS A 249 CA - CB - SG ANGL. DEV. = 8.1 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 70 -49.07 72.72 REMARK 500 REMARK 500 REMARK: NULL REMARK 610 REMARK 610 MISSING HETEROATOM REMARK 610 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 610 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 610 I=INSERTION CODE): REMARK 610 M RES C SSEQI REMARK 610 ACT A 1474 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACT A 1474 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACT A 1475 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACT A 1476 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACT A 1477 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACT A 1478 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FLU A 1341 REMARK 999 REMARK 999 SEQUENCE REMARK 999 THE FLAG TAG HAS 14 RESIDUES (1-14). RESIDUES REMARK 999 15-126 CORRESPOND TO VL. THERE IS A 25-RESIDUE REMARK 999 LINKER (RESIDUES 127-151). RESIDUES 152-268 REMARK 999 CORRESPOND TO VH. DBREF 1X9Q A 1 268 PDB 1X9Q 1X9Q 1 268 SEQRES 1 A 268 ALA ALA ARG PRO ASP TYR LYS ASP ASP ASP ASP LYS ALA SEQRES 2 A 268 SER ASP VAL VAL MET THR GLN THR PRO LEU SER LEU PRO SEQRES 3 A 268 VAL SER LEU GLY ASP GLN ALA SER ILE SER CYS ARG SER SEQRES 4 A 268 SER GLN SER LEU VAL HIS SER ASN GLY ASN THR TYR LEU SEQRES 5 A 268 ARG TRP TYR LEU GLN LYS PRO GLY GLN SER PRO LYS VAL SEQRES 6 A 268 LEU ILE TYR LYS VAL SER ASN ARG VAL SER GLY VAL PRO SEQRES 7 A 268 ASP ARG PHE SER GLY SER GLY SER GLY THR ASP PHE THR SEQRES 8 A 268 LEU LYS ILE ASN ARG VAL GLU ALA GLU ASP LEU GLY VAL SEQRES 9 A 268 TYR PHE CYS SER GLN SER THR HIS VAL PRO TRP THR PHE SEQRES 10 A 268 GLY GLY GLY THR LYS LEU GLU ILE LYS SER SER ALA ASP SEQRES 11 A 268 ASP ALA LYS LYS ASP ALA ALA LYS LYS ASP ASP ALA LYS SEQRES 12 A 268 LYS ASP ASP ALA LYS LYS ASP GLY GLY VAL LYS LEU ASP SEQRES 13 A 268 GLU THR GLY GLY GLY LEU VAL GLN PRO GLY GLY ALA MET SEQRES 14 A 268 LYS LEU SER CYS VAL THR SER GLY PHE THR PHE GLY HIS SEQRES 15 A 268 TYR TRP MET ASN TRP VAL ARG GLN SER PRO GLU LYS GLY SEQRES 16 A 268 LEU GLU TRP VAL ALA GLN PHE ARG ASN LYS PRO TYR ASN SEQRES 17 A 268 TYR GLU THR TYR TYR SER ASP SER VAL LYS GLY ARG PHE SEQRES 18 A 268 THR ILE SER ARG ASP ASP SER LYS SER SER VAL TYR LEU SEQRES 19 A 268 GLN MET ASN ASN LEU ARG VAL GLU ASP THR GLY ILE TYR SEQRES 20 A 268 TYR CYS THR GLY ALA SER TYR GLY MET GLU TYR LEU GLY SEQRES 21 A 268 GLN GLY THR SER VAL THR VAL SER HET ACT A1474 3 HET ACT A1475 4 HET ACT A1476 4 HET ACT A1477 4 HET ACT A1478 4 HET FLU A1341 25 HETNAM ACT ACETATE ION HETNAM FLU 2-(6-HYDROXY-3-OXO-3H-XANTHEN-9-YL)-BENZOIC ACID HETSYN FLU FLUORESCEIN FORMUL 2 ACT 5(C2 H3 O2 1-) FORMUL 7 FLU C20 H12 O5 FORMUL 8 HOH *233(H2 O) HELIX 1 1 GLU A 98 LEU A 102 5 5 HELIX 2 3 THR A 179 TYR A 183 5 5 HELIX 3 4 ASN A 204 ASN A 208 5 5 HELIX 4 5 ASP A 227 LYS A 229 5 3 HELIX 5 6 ARG A 240 THR A 244 5 5 SHEET 1 A 4 MET A 18 THR A 21 0 SHEET 2 A 4 ALA A 33 SER A 39 -1 O ARG A 38 N THR A 19 SHEET 3 A 4 ASP A 89 ILE A 94 -1 O PHE A 90 N CYS A 37 SHEET 4 A 4 PHE A 81 SER A 86 -1 N SER A 82 O LYS A 93 SHEET 1 B 6 SER A 24 PRO A 26 0 SHEET 2 B 6 THR A 121 GLU A 124 1 O LYS A 122 N LEU A 25 SHEET 3 B 6 GLY A 103 GLN A 109 -1 N GLY A 103 O LEU A 123 SHEET 4 B 6 LEU A 52 GLN A 57 -1 N GLN A 57 O VAL A 104 SHEET 5 B 6 LYS A 64 TYR A 68 -1 O LEU A 66 N TRP A 54 SHEET 6 B 6 ASN A 72 ARG A 73 -1 O ASN A 72 N TYR A 68 SHEET 1 C 4 SER A 24 PRO A 26 0 SHEET 2 C 4 THR A 121 GLU A 124 1 O LYS A 122 N LEU A 25 SHEET 3 C 4 GLY A 103 GLN A 109 -1 N GLY A 103 O LEU A 123 SHEET 4 C 4 THR A 116 PHE A 117 -1 O THR A 116 N GLN A 109 SHEET 1 D 4 LYS A 154 THR A 158 0 SHEET 2 D 4 MET A 169 SER A 176 -1 O SER A 176 N LYS A 154 SHEET 3 D 4 SER A 231 MET A 236 -1 O MET A 236 N MET A 169 SHEET 4 D 4 PHE A 221 ASP A 226 -1 N THR A 222 O GLN A 235 SHEET 1 E 6 GLY A 161 VAL A 163 0 SHEET 2 E 6 THR A 263 VAL A 267 1 O THR A 266 N GLY A 161 SHEET 3 E 6 GLY A 245 SER A 253 -1 N TYR A 247 O THR A 263 SHEET 4 E 6 TRP A 184 SER A 191 -1 N VAL A 188 O TYR A 248 SHEET 5 E 6 GLY A 195 PHE A 202 -1 O GLU A 197 N ARG A 189 SHEET 6 E 6 THR A 211 TYR A 213 -1 O TYR A 212 N GLN A 201 SHEET 1 F 4 GLY A 161 VAL A 163 0 SHEET 2 F 4 THR A 263 VAL A 267 1 O THR A 266 N GLY A 161 SHEET 3 F 4 GLY A 245 SER A 253 -1 N TYR A 247 O THR A 263 SHEET 4 F 4 MET A 256 LEU A 259 -1 O TYR A 258 N GLY A 251 SSBOND 1 CYS A 37 CYS A 107 1555 1555 2.05 SSBOND 2 CYS A 173 CYS A 249 1555 1555 2.03 CISPEP 1 THR A 21 PRO A 22 0 -3.97 CISPEP 2 VAL A 113 PRO A 114 0 1.88 SITE 1 AC1 3 HIS A 182 TYR A 254 FLU A1341 SITE 1 AC2 6 ARG A 73 VAL A 74 SER A 75 MET A 256 SITE 2 AC2 6 HOH A1548 HOH A1600 SITE 1 AC3 2 LYS A 58 ASP A 101 SITE 1 AC4 1 ACT A1478 SITE 1 AC5 3 VAL A 27 GLU A 124 ACT A1477 SITE 1 AC6 15 HIS A 45 TYR A 51 ARG A 53 SER A 110 SITE 2 AC6 15 TRP A 115 HIS A 182 TRP A 184 TYR A 207 SITE 3 AC6 15 ALA A 252 TYR A 254 GLY A 255 ACT A1474 SITE 4 AC6 15 HOH A1563 HOH A1595 HOH A1598 CRYST1 55.780 57.450 79.220 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 0.017928 0.000000 0.000000 0.00000 SCALE2 0.000000 0.017406 0.000000 0.00000 SCALE3 0.000000 0.000000 0.012623 0.00000