HEADER HYDROLASE 18-AUG-99 1QL0 TITLE SM ENDONUCLEASE FROM SERATIA MARCENSCENS AT ATOMIC RESOLUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: NUCLEASE; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: ENDONUCLEASE; COMPND 5 EC: 3.1.30.2; COMPND 6 ENGINEERED: YES; COMPND 7 OTHER_DETAILS: MG BINDING SITE AT RESIDUE 127 SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SERRATIA MARCESCENS; SOURCE 3 ORGANISM_TAXID: 615; SOURCE 4 EXPRESSION_SYSTEM: SERRATIA MARCESCENS; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 615 KEYWDS ENDONUCLEASE, HYDROLASE, NUCLEASE EXPDTA X-RAY DIFFRACTION AUTHOR M.PERBANDT,A.M.MIKHAILOV,C.H.BETZEL REVDAT 4 24-JUL-19 1QL0 1 REMARK REVDAT 3 12-MAR-14 1QL0 1 HEADER COMPND SOURCE KEYWDS REVDAT 3 2 1 JRNL REMARK VERSN SEQADV REVDAT 3 3 1 FORMUL MASTER REVDAT 2 24-FEB-09 1QL0 1 VERSN REVDAT 1 07-MAY-00 1QL0 0 JRNL AUTH S.V.SHLYAPNIKOV,V.V.LUNIN,M.PERBANDT,K.M.POLYAKOV,V.Y.LUNIN, JRNL AUTH 2 V.M.LEVDIKOV,C.BETZEL,A.M.MIKHAILOV JRNL TITL ATOMIC STRUCTURE OF THE SERRATIA MARCESCENS ENDONUCLEASE AT JRNL TITL 2 1.1 A RESOLUTION AND THE ENZYME REACTION MECHANISM. JRNL REF ACTA CRYSTALLOGR.,SECT.D V. 56 567 2000 JRNL REFN ISSN 0907-4449 JRNL PMID 10771425 JRNL DOI 10.1107/S090744490000322X REMARK 2 REMARK 2 RESOLUTION. 1.10 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : SHELXL-97 REMARK 3 AUTHORS : G.M.SHELDRICK REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.10 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 91.5 REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : EVERY 20TH REFLECTION REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (NO CUTOFF). REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.128 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.147 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 10828 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 216595 REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : NULL REMARK 3 R VALUE (WORKING SET, F>4SIG(F)) : NULL REMARK 3 FREE R VALUE (F>4SIG(F)) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 3703 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 2 REMARK 3 SOLVENT ATOMS : 836 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : NULL REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : NULL REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : NULL REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : NULL REMARK 3 NUMBER OF RESTRAINTS : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.023 REMARK 3 ANGLE DISTANCES (A) : 0.041 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : NULL REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : NULL REMARK 3 ZERO CHIRAL VOLUMES (A**3) : NULL REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : NULL REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : NULL REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : NULL REMARK 3 SIMILAR ADP COMPONENTS (A**2) : NULL REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED: NULL REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : NULL REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1QL0 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 18-AUG-99. REMARK 100 THE DEPOSITION ID IS D_1290004018. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : 120.0 REMARK 200 PH : 6.50 REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : EMBL/DESY, HAMBURG REMARK 200 BEAMLINE : BW7B REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.0 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : NULL REMARK 200 DETECTOR MANUFACTURER : NULL REMARK 200 INTENSITY-INTEGRATION SOFTWARE : NULL REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 216595 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.100 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 91.5 REMARK 200 DATA REDUNDANCY : 3.400 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.04100 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: SHELXL-97 REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 51.54 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.54 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 6.50 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 53.19500 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 36.83500 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 53.19500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 36.83500 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 2020 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 18610 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -22.0 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 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 2384 O HOH B 2335 2565 1.79 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 ARG A 57 CD - NE - CZ ANGL. DEV. = 17.2 DEGREES REMARK 500 ARG A 87 NE - CZ - NH1 ANGL. DEV. = 3.0 DEGREES REMARK 500 ARG A 125 NE - CZ - NH1 ANGL. DEV. = 3.5 DEGREES REMARK 500 ASP A 153 CB - CG - OD1 ANGL. DEV. = 6.6 DEGREES REMARK 500 ARG A 204 NE - CZ - NH2 ANGL. DEV. = -5.3 DEGREES REMARK 500 LEU B 30 CA - CB - CG ANGL. DEV. = 16.9 DEGREES REMARK 500 ARG B 57 NH1 - CZ - NH2 ANGL. DEV. = 12.0 DEGREES REMARK 500 ARG B 57 NE - CZ - NH1 ANGL. DEV. = -4.1 DEGREES REMARK 500 ARG B 57 NE - CZ - NH2 ANGL. DEV. = -7.9 DEGREES REMARK 500 ARG B 125 NE - CZ - NH2 ANGL. DEV. = -3.8 DEGREES REMARK 500 ARG B 136 NH1 - CZ - NH2 ANGL. DEV. = -7.9 DEGREES REMARK 500 ARG B 136 NE - CZ - NH2 ANGL. DEV. = 7.6 DEGREES REMARK 500 ASP B 138 CB - CG - OD1 ANGL. DEV. = 6.1 DEGREES REMARK 500 ASP B 153 CB - CG - OD1 ANGL. DEV. = 7.9 DEGREES REMARK 500 ARG B 204 NE - CZ - NH2 ANGL. DEV. = -4.4 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 ALA A 10 -45.21 71.00 REMARK 500 LYS A 37 7.21 80.41 REMARK 500 GLN A 90 -75.03 -85.55 REMARK 500 ASN A 177 -111.11 64.88 REMARK 500 ALA B 10 -43.21 67.54 REMARK 500 LYS B 37 6.71 83.60 REMARK 500 GLN B 90 -73.47 -86.02 REMARK 500 ASN B 177 -118.20 62.02 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 A2072 DISTANCE = 5.99 ANGSTROMS REMARK 525 HOH A2209 DISTANCE = 5.94 ANGSTROMS REMARK 525 HOH B2029 DISTANCE = 6.61 ANGSTROMS REMARK 525 HOH B2073 DISTANCE = 6.24 ANGSTROMS REMARK 525 HOH B2088 DISTANCE = 6.87 ANGSTROMS REMARK 525 HOH B2089 DISTANCE = 6.07 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 MG A 300 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH B2205 O REMARK 620 2 ASN B 119 OD1 95.2 REMARK 620 3 HOH B2230 O 94.7 84.8 REMARK 620 4 HOH B2239 O 82.7 98.3 176.1 REMARK 620 5 HOH B2254 O 89.0 170.2 85.9 91.1 REMARK 620 6 HOH B2256 O 169.8 85.8 95.5 87.1 91.7 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG B 300 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A2254 O REMARK 620 2 HOH A2269 O 96.0 REMARK 620 3 HOH A2247 O 177.0 87.0 REMARK 620 4 ASN A 119 OD1 97.0 166.9 80.0 REMARK 620 5 HOH A2267 O 86.0 91.3 94.5 88.2 REMARK 620 6 HOH A2220 O 84.5 87.2 95.2 95.4 170.2 REMARK 620 N 1 2 3 4 5 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 300 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG B 300 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1SMN RELATED DB: PDB REMARK 900 EXTRACELLULAR ENDONUCLEASE FROM SERRATIA MARCESCENS DBREF 1QL0 A 5 245 UNP P13717 NUC_SERMA 26 266 DBREF 1QL0 B 5 245 UNP P13717 NUC_SERMA 26 266 SEQADV 1QL0 LYS A 20 UNP P13717 ASN 41 CONFLICT SEQADV 1QL0 LYS B 20 UNP P13717 ASN 41 CONFLICT SEQRES 1 A 241 SER ILE ASP ASN CYS ALA VAL GLY CYS PRO THR GLY GLY SEQRES 2 A 241 SER SER LYS VAL SER ILE VAL ARG HIS ALA TYR THR LEU SEQRES 3 A 241 ASN ASN ASN SER THR THR LYS PHE ALA ASN TRP VAL ALA SEQRES 4 A 241 TYR HIS ILE THR LYS ASP THR PRO ALA SER GLY LYS THR SEQRES 5 A 241 ARG ASN TRP LYS THR ASP PRO ALA LEU ASN PRO ALA ASP SEQRES 6 A 241 THR LEU ALA PRO ALA ASP TYR THR GLY ALA ASN ALA ALA SEQRES 7 A 241 LEU LYS VAL ASP ARG GLY HIS GLN ALA PRO LEU ALA SER SEQRES 8 A 241 LEU ALA GLY VAL SER ASP TRP GLU SER LEU ASN TYR LEU SEQRES 9 A 241 SER ASN ILE THR PRO GLN LYS SER ASP LEU ASN GLN GLY SEQRES 10 A 241 ALA TRP ALA ARG LEU GLU ASP GLN GLU ARG LYS LEU ILE SEQRES 11 A 241 ASP ARG ALA ASP ILE SER SER VAL TYR THR VAL THR GLY SEQRES 12 A 241 PRO LEU TYR GLU ARG ASP MET GLY LYS LEU PRO GLY THR SEQRES 13 A 241 GLN LYS ALA HIS THR ILE PRO SER ALA TYR TRP LYS VAL SEQRES 14 A 241 ILE PHE ILE ASN ASN SER PRO ALA VAL ASN HIS TYR ALA SEQRES 15 A 241 ALA PHE LEU PHE ASP GLN ASN THR PRO LYS GLY ALA ASP SEQRES 16 A 241 PHE CYS GLN PHE ARG VAL THR VAL ASP GLU ILE GLU LYS SEQRES 17 A 241 ARG THR GLY LEU ILE ILE TRP ALA GLY LEU PRO ASP ASP SEQRES 18 A 241 VAL GLN ALA SER LEU LYS SER LYS PRO GLY VAL LEU PRO SEQRES 19 A 241 GLU LEU MET GLY CYS LYS ASN SEQRES 1 B 241 SER ILE ASP ASN CYS ALA VAL GLY CYS PRO THR GLY GLY SEQRES 2 B 241 SER SER LYS VAL SER ILE VAL ARG HIS ALA TYR THR LEU SEQRES 3 B 241 ASN ASN ASN SER THR THR LYS PHE ALA ASN TRP VAL ALA SEQRES 4 B 241 TYR HIS ILE THR LYS ASP THR PRO ALA SER GLY LYS THR SEQRES 5 B 241 ARG ASN TRP LYS THR ASP PRO ALA LEU ASN PRO ALA ASP SEQRES 6 B 241 THR LEU ALA PRO ALA ASP TYR THR GLY ALA ASN ALA ALA SEQRES 7 B 241 LEU LYS VAL ASP ARG GLY HIS GLN ALA PRO LEU ALA SER SEQRES 8 B 241 LEU ALA GLY VAL SER ASP TRP GLU SER LEU ASN TYR LEU SEQRES 9 B 241 SER ASN ILE THR PRO GLN LYS SER ASP LEU ASN GLN GLY SEQRES 10 B 241 ALA TRP ALA ARG LEU GLU ASP GLN GLU ARG LYS LEU ILE SEQRES 11 B 241 ASP ARG ALA ASP ILE SER SER VAL TYR THR VAL THR GLY SEQRES 12 B 241 PRO LEU TYR GLU ARG ASP MET GLY LYS LEU PRO GLY THR SEQRES 13 B 241 GLN LYS ALA HIS THR ILE PRO SER ALA TYR TRP LYS VAL SEQRES 14 B 241 ILE PHE ILE ASN ASN SER PRO ALA VAL ASN HIS TYR ALA SEQRES 15 B 241 ALA PHE LEU PHE ASP GLN ASN THR PRO LYS GLY ALA ASP SEQRES 16 B 241 PHE CYS GLN PHE ARG VAL THR VAL ASP GLU ILE GLU LYS SEQRES 17 B 241 ARG THR GLY LEU ILE ILE TRP ALA GLY LEU PRO ASP ASP SEQRES 18 B 241 VAL GLN ALA SER LEU LYS SER LYS PRO GLY VAL LEU PRO SEQRES 19 B 241 GLU LEU MET GLY CYS LYS ASN HET MG A 300 1 HET MG B 300 1 HETNAM MG MAGNESIUM ION FORMUL 3 MG 2(MG 2+) FORMUL 5 HOH *836(H2 O) HELIX 1 1 ASN A 66 THR A 70 5 5 HELIX 2 2 ALA A 72 THR A 77 5 6 HELIX 3 3 GLY A 78 LYS A 84 1 7 HELIX 4 4 PRO A 92 ALA A 97 1 6 HELIX 5 5 ASP A 101 ASN A 106 5 6 HELIX 6 6 SER A 116 GLN A 120 1 5 HELIX 7 7 GLY A 121 ILE A 134 1 14 HELIX 8 8 ASP A 199 PHE A 203 5 5 HELIX 9 9 THR A 206 GLY A 215 1 10 HELIX 10 10 PRO A 223 SER A 232 1 10 HELIX 11 11 VAL A 236 GLY A 242 5 7 HELIX 12 12 ASN B 66 THR B 70 5 5 HELIX 13 13 ALA B 72 THR B 77 5 6 HELIX 14 14 GLY B 78 LYS B 84 1 7 HELIX 15 15 PRO B 92 ALA B 97 1 6 HELIX 16 16 ASP B 101 ASN B 106 5 6 HELIX 17 17 SER B 116 GLN B 120 1 5 HELIX 18 18 GLY B 121 LEU B 133 1 13 HELIX 19 19 ILE B 134 ARG B 136 5 3 HELIX 20 20 ASP B 199 PHE B 203 5 5 HELIX 21 21 THR B 206 GLY B 215 1 10 HELIX 22 22 PRO B 223 SER B 232 1 10 HELIX 23 23 VAL B 236 GLY B 242 5 7 SHEET 1 A 6 ILE A 23 VAL A 24 0 SHEET 2 A 6 THR A 29 ASN A 32 -1 O LEU A 30 N ILE A 23 SHEET 3 A 6 ALA A 39 ILE A 46 -1 N ASN A 40 O ASN A 31 SHEET 4 A 6 VAL A 142 LEU A 149 -1 O VAL A 142 N ILE A 46 SHEET 5 A 6 ALA A 169 ILE A 176 -1 O ALA A 169 N LEU A 149 SHEET 6 A 6 TYR A 185 ASP A 191 -1 O ALA A 186 N ILE A 174 SHEET 1 B 2 VAL A 85 HIS A 89 0 SHEET 2 B 2 ILE A 111 LYS A 115 -1 O THR A 112 N GLY A 88 SHEET 1 C 6 ILE B 23 VAL B 24 0 SHEET 2 C 6 THR B 29 ASN B 32 -1 O LEU B 30 N ILE B 23 SHEET 3 C 6 ALA B 39 ILE B 46 -1 N ASN B 40 O ASN B 31 SHEET 4 C 6 VAL B 142 LEU B 149 -1 O VAL B 142 N ILE B 46 SHEET 5 C 6 ALA B 169 ILE B 176 -1 O ALA B 169 N LEU B 149 SHEET 6 C 6 TYR B 185 ASP B 191 -1 O ALA B 186 N ILE B 174 SHEET 1 D 2 VAL B 85 HIS B 89 0 SHEET 2 D 2 ILE B 111 LYS B 115 -1 O THR B 112 N GLY B 88 SSBOND 1 CYS A 9 CYS A 13 1555 1555 2.09 SSBOND 2 CYS A 201 CYS A 243 1555 1555 2.07 SSBOND 3 CYS B 9 CYS B 13 1555 1555 2.11 SSBOND 4 CYS B 201 CYS B 243 1555 1555 2.07 LINK MG MG A 300 O HOH B2205 1555 1555 2.15 LINK MG MG A 300 OD1 ASN B 119 1555 1555 2.11 LINK MG MG A 300 O HOH B2230 1555 1555 2.11 LINK MG MG A 300 O HOH B2239 1555 1555 2.20 LINK MG MG A 300 O HOH B2254 1555 1555 2.13 LINK MG MG A 300 O HOH B2256 1555 1555 2.11 LINK MG MG B 300 O HOH A2254 1555 1555 2.28 LINK MG MG B 300 O HOH A2269 1555 1555 2.22 LINK MG MG B 300 O HOH A2247 1555 1555 2.19 LINK MG MG B 300 OD1 ASN A 119 1555 1555 2.20 LINK MG MG B 300 O HOH A2267 1555 1555 2.16 LINK MG MG B 300 O HOH A2220 1555 1555 2.20 SITE 1 AC1 6 ASN B 119 HOH B2205 HOH B2230 HOH B2239 SITE 2 AC1 6 HOH B2254 HOH B2256 SITE 1 AC2 6 ASN A 119 HOH A2220 HOH A2247 HOH A2254 SITE 2 AC2 6 HOH A2267 HOH A2269 CRYST1 106.390 73.670 68.120 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 0.009399 0.000000 0.000000 0.00000 SCALE2 0.000000 0.013574 0.000000 0.00000 SCALE3 0.000000 0.000000 0.014680 0.00000