HEADER HYDROLASE 11-JUL-06 2IXS TITLE STRUCTURE OF SDAI RESTRICTION ENDONUCLEASE COMPND MOL_ID: 1; COMPND 2 MOLECULE: SDAI RESTRICTION ENDONUCLEASE; COMPND 3 CHAIN: A, B; COMPND 4 EC: 3.1.21.4; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: STREPTOMYCES DIASTATICUS; SOURCE 3 ORGANISM_TAXID: 1956; SOURCE 4 STRAIN: NG7-324; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: ER2267; SOURCE 8 EXPRESSION_SYSTEM_VECTOR: PAL; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PAL-SDAIR KEYWDS RESTRICTION ENDONUCLEASE, SDAI, HYDROLASE, ENDONUCLEASE, DOMAIN KEYWDS 2 ARCHITECTURE EXPDTA X-RAY DIFFRACTION AUTHOR G.TAMULAITIENE,A.JAKUBAUSKAS,C.URBANKE,R.HUBER,S.GRAZULIS,V.SIKSNYS REVDAT 3 08-MAY-24 2IXS 1 REMARK REVDAT 2 24-FEB-09 2IXS 1 VERSN REVDAT 1 14-SEP-06 2IXS 0 JRNL AUTH G.TAMULAITIENE,A.JAKUBAUSKAS,C.URBANKE,R.HUBER,S.GRAZULIS, JRNL AUTH 2 V.SIKSNYS JRNL TITL THE CRYSTAL STRUCTURE OF THE RARE-CUTTING RESTRICTION ENZYME JRNL TITL 2 SDAI REVEALS UNEXPECTED DOMAIN ARCHITECTURE JRNL REF STRUCTURE V. 14 1389 2006 JRNL REFN ISSN 0969-2126 JRNL PMID 16962970 JRNL DOI 10.1016/J.STR.2006.07.002 REMARK 2 REMARK 2 RESOLUTION. 2.00 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.1.24 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 30.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 3 NUMBER OF REFLECTIONS : 54406 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) : 0.182 REMARK 3 R VALUE (WORKING SET) : 0.178 REMARK 3 FREE R VALUE : 0.212 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.000 REMARK 3 FREE R VALUE TEST SET COUNT : 6068 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.00 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.05 REMARK 3 REFLECTION IN BIN (WORKING SET) : 3995 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 BIN R VALUE (WORKING SET) : 0.2030 REMARK 3 BIN FREE R VALUE SET COUNT : 409 REMARK 3 BIN FREE R VALUE : 0.2510 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 5090 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 91 REMARK 3 SOLVENT ATOMS : 470 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 19.03 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 21.09 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -0.90000 REMARK 3 B22 (A**2) : -0.07000 REMARK 3 B33 (A**2) : 0.97000 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 OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.157 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.142 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.090 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 3.229 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.942 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.925 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 5364 ; 0.011 ; 0.021 REMARK 3 BOND LENGTHS OTHERS (A): 4812 ; 0.000 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 7286 ; 1.399 ; 1.958 REMARK 3 BOND ANGLES OTHERS (DEGREES): 11159 ; 0.761 ; 3.000 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 652 ; 5.583 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): NULL ; NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 770 ; 0.102 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 5983 ; 0.005 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): 1158 ; 0.001 ; 0.020 REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 1143 ; 0.222 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): 5601 ; 0.271 ; 0.200 REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): 3067 ; 0.089 ; 0.200 REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 351 ; 0.200 ; 0.200 REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): 36 ; 0.319 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): 145 ; 0.324 ; 0.200 REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 32 ; 0.188 ; 0.200 REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): 3238 ; 2.095 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 5194 ; 3.203 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 2126 ; 4.716 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 2092 ; 6.825 ; 4.500 REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : BABINET MODEL WITH MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.40 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING REMARK 3 POSITIONS.REFINEMENT WAS CONDUCTED WITH CNS, FINAL STEPS OF REMARK 3 REFINEMENT WERE MADE WITH REFMAC. RESIDUES 1-4 ARE DISORDERED. REMARK 3 SDAI IS A DIMER IN SOLUTION HOWEVER WE COULD NOT IDENTIFY REMARK 3 BIOLOGICALLY RELEVANT DIMER IN THE CRYSTAL. REMARK 4 REMARK 4 2IXS COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 11-JUL-06. REMARK 100 THE DEPOSITION ID IS D_1290029344. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 09-SEP-01 REMARK 200 TEMPERATURE (KELVIN) : 100.0 REMARK 200 PH : 7.50 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ESRF REMARK 200 BEAMLINE : ID13 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9755 REMARK 200 MONOCHROMATOR : SI(111) REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : SCALA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 60505 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.000 REMARK 200 RESOLUTION RANGE LOW (A) : 51.200 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.400 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 200 DATA REDUNDANCY : 7.400 REMARK 200 R MERGE (I) : 0.10000 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 5.6000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.00 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.11 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 REMARK 200 DATA REDUNDANCY IN SHELL : 7.50 REMARK 200 R MERGE FOR SHELL (I) : 0.39000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 1.400 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: SIRAS REMARK 200 SOFTWARE USED: MLPHARE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: HGCL2 DERIVATIVE WAS USED FOR THE SIRAS EXPERIMENT REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 59.20 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.04 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 1.7-2.0 M (NH4)2SO4, 0.1 M NA-HEPES, REMARK 280 PH 7.5, PH 7.50 REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 2 2 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -X,Y,-Z+1/2 REMARK 290 4555 X,-Y,-Z REMARK 290 5555 X+1/2,Y+1/2,Z REMARK 290 6555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 7555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 8555 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 55.70200 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 55.70200 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 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 33.45050 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 118.99550 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 33.45050 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 118.99550 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 55.70200 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 33.45050 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 118.99550 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 55.70200 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 33.45050 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 118.99550 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 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 300 REMARK: ALTHOUGH SDAI IS A DIMER, NO BIOLOGICALLY REMARK 300 RELEVANT DIMERCAN BE CONSTRUCTED IN THE PRESENT REMARK 300 STRUCTURE, WHICH ISTHE REASON THIS ENTRY IS MARKED REMARK 300 AS MONOMERIC. 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PQS 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 350 REMARK 350 BIOMOLECULE: 2 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PQS REMARK 350 APPLY THE FOLLOWING TO CHAINS: 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 MET A 1 REMARK 465 THR A 2 REMARK 465 ASN A 3 REMARK 465 SER A 4 REMARK 465 MET B 1 REMARK 465 THR B 2 REMARK 465 ASN B 3 REMARK 465 SER B 4 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 ASN A 5 CG OD1 ND2 REMARK 480 GLU A 27 CG CD OE1 OE2 REMARK 480 GLN A 29 CG CD OE1 NE2 REMARK 480 ARG A 58 NE CZ NH1 NH2 REMARK 480 ARG A 81 NE CZ NH1 NH2 REMARK 480 GLU A 82 CG CD OE1 OE2 REMARK 480 LYS A 86 CE NZ REMARK 480 LYS A 87 CE NZ REMARK 480 GLN A 124 CD OE1 NE2 REMARK 480 LYS A 144 CE NZ REMARK 480 ARG A 150 CD NE CZ NH1 NH2 REMARK 480 LYS A 184 CE NZ REMARK 480 LYS A 208 CD CE NZ REMARK 480 LYS A 214 CD CE NZ REMARK 480 ARG A 215 NE CZ NH1 NH2 REMARK 480 ARG A 230 NE CZ NH1 NH2 REMARK 480 LYS A 242 CE NZ REMARK 480 LYS A 253 CD CE NZ REMARK 480 ASN B 5 CG OD1 ND2 REMARK 480 ARG B 58 NE CZ NH1 NH2 REMARK 480 GLN B 112 CD OE1 NE2 REMARK 480 GLN B 124 CD OE1 NE2 REMARK 480 LYS B 144 CD CE NZ REMARK 480 ASP B 167 CG OD1 OD2 REMARK 480 GLU B 170 CG CD OE1 OE2 REMARK 480 LYS B 208 CD CE NZ REMARK 480 ARG B 230 CG CD NE CZ NH1 NH2 REMARK 480 LYS B 253 CD CE NZ REMARK 480 ARG B 265 NE CZ NH1 NH2 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 OE1 GLU B 299 O HOH B 2252 1.61 REMARK 500 O1S EPE A 1329 O HOH A 2192 2.04 REMARK 500 OD2 ASP B 147 O HOH B 2143 2.12 REMARK 500 NZ LYS B 184 OE1 GLU B 282 2.14 REMARK 500 O HOH B 2269 O HOH B 2271 2.17 REMARK 500 NH1 ARG A 85 O HOH A 2047 2.18 REMARK 500 NE2 GLN B 29 O HOH B 2029 2.19 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 ND2 ASN A 313 ND1 HIS B 308 3655 1.97 REMARK 500 ND1 HIS A 308 ND2 ASN B 313 3655 2.06 REMARK 500 O HOH A 2153 O HOH B 2271 3655 2.18 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS 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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) 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 RES CSSEQI ATM2 DEVIATION REMARK 500 ASN A 313 CB ASN A 313 CG -0.151 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 ASN A 313 CB - CA - C ANGL. DEV. = -12.1 DEGREES REMARK 500 ASN A 313 N - CA - CB ANGL. DEV. = -11.5 DEGREES REMARK 500 ASN A 313 N - CA - C ANGL. DEV. = 38.2 DEGREES REMARK 500 ASN A 313 CA - C - N ANGL. DEV. = 13.1 DEGREES REMARK 500 ASP B 103 CB - CG - OD2 ANGL. DEV. = 5.5 DEGREES REMARK 500 ASP B 233 CB - CG - OD2 ANGL. DEV. = 5.4 DEGREES REMARK 500 ASN B 313 N - CA - C ANGL. DEV. = 35.3 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 THR A 88 -65.21 -133.51 REMARK 500 ALA A 194 47.03 -145.76 REMARK 500 ASN A 313 66.05 104.87 REMARK 500 HIS B 31 24.25 -144.70 REMARK 500 THR B 88 -64.26 -125.64 REMARK 500 ASP B 167 106.29 -42.62 REMARK 500 ALA B 194 54.89 -150.60 REMARK 500 LYS B 242 45.51 70.62 REMARK 500 PHE B 256 96.90 -65.21 REMARK 500 ASN B 313 64.59 136.44 REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A1324 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A1325 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A1326 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A1327 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A1328 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 B1324 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC7 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 B1325 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC8 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 B1326 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC9 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 B1327 REMARK 800 REMARK 800 SITE_IDENTIFIER: BC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE EPE A1329 REMARK 800 REMARK 800 SITE_IDENTIFIER: BC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE TRS A1330 REMARK 800 REMARK 800 SITE_IDENTIFIER: BC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE EPE B1328 REMARK 800 REMARK 800 SITE_IDENTIFIER: BC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE TRS B1329 DBREF 2IXS A 1 323 PDB 2IXS 2IXS 1 323 DBREF 2IXS B 1 323 PDB 2IXS 2IXS 1 323 SEQRES 1 A 323 MET THR ASN SER ASN ASP ILE ASP GLU THR ALA ALA THR SEQRES 2 A 323 ILE ASP THR ALA ARG ALA LEU LEU LYS SER PHE GLY PHE SEQRES 3 A 323 GLU ALA GLN ARG HIS ASN VAL ARG SER ALA VAL THR LEU SEQRES 4 A 323 LEU ALA LEU ALA GLY LEU LYS PRO GLY ASP HIS TRP ALA SEQRES 5 A 323 ASP SER THR THR PRO ARG LEU GLY VAL GLN LYS ILE MET SEQRES 6 A 323 ASP TRP SER GLY ALA TYR TRP ALA LYS PRO TYR ALA THR SEQRES 7 A 323 GLY SER ARG GLU ASP PHE ARG LYS LYS THR LEU ARG GLN SEQRES 8 A 323 TRP VAL ASP ASN GLY PHE ALA VAL LEU ASN PRO ASP ASN SEQRES 9 A 323 LEU ASN ILE ALA THR ASN SER GLN LEU ASN GLU TYR CYS SEQRES 10 A 323 LEU SER ASP GLU ALA ALA GLN ALA ILE ARG SER TYR GLY SEQRES 11 A 323 THR ASP ALA PHE GLU SER ALA LEU VAL ASP PHE LEU SER SEQRES 12 A 323 LYS ALA SER ASP THR VAL ARG ALA ARG ALA GLU ALA LEU SEQRES 13 A 323 ARG ALA ALA MET ILE SER VAL ASP LEU ALA ASP GLY ASP SEQRES 14 A 323 GLU PHE LEU LEU SER PRO ALA GLY GLN ASN PRO LEU LEU SEQRES 15 A 323 LYS LYS MET VAL GLU GLU PHE MET PRO ARG PHE ALA PRO SEQRES 16 A 323 GLY ALA LYS VAL LEU TYR ILE GLY ASP THR ARG GLY LYS SEQRES 17 A 323 HIS THR ARG PHE GLU LYS ARG ILE PHE GLU GLU THR LEU SEQRES 18 A 323 GLY LEU THR PHE ASP PRO HIS GLY ARG MET PRO ASP LEU SEQRES 19 A 323 VAL LEU HIS ASP LYS VAL ARG LYS TRP LEU PHE LEU MET SEQRES 20 A 323 GLU ALA VAL LYS SER LYS GLY PRO PHE ASP GLU GLU ARG SEQRES 21 A 323 HIS ARG THR LEU ARG GLU LEU PHE ALA THR PRO VAL ALA SEQRES 22 A 323 GLY LEU VAL PHE VAL ASN CYS PHE GLU ASN ARG GLU ALA SEQRES 23 A 323 MET ARG GLN TRP LEU PRO GLU LEU ALA TRP GLU THR GLU SEQRES 24 A 323 ALA TRP VAL ALA ASP ASP PRO ASP HIS LEU ILE HIS LEU SEQRES 25 A 323 ASN GLY SER ARG PHE LEU GLY PRO TYR GLU ARG SEQRES 1 B 323 MET THR ASN SER ASN ASP ILE ASP GLU THR ALA ALA THR SEQRES 2 B 323 ILE ASP THR ALA ARG ALA LEU LEU LYS SER PHE GLY PHE SEQRES 3 B 323 GLU ALA GLN ARG HIS ASN VAL ARG SER ALA VAL THR LEU SEQRES 4 B 323 LEU ALA LEU ALA GLY LEU LYS PRO GLY ASP HIS TRP ALA SEQRES 5 B 323 ASP SER THR THR PRO ARG LEU GLY VAL GLN LYS ILE MET SEQRES 6 B 323 ASP TRP SER GLY ALA TYR TRP ALA LYS PRO TYR ALA THR SEQRES 7 B 323 GLY SER ARG GLU ASP PHE ARG LYS LYS THR LEU ARG GLN SEQRES 8 B 323 TRP VAL ASP ASN GLY PHE ALA VAL LEU ASN PRO ASP ASN SEQRES 9 B 323 LEU ASN ILE ALA THR ASN SER GLN LEU ASN GLU TYR CYS SEQRES 10 B 323 LEU SER ASP GLU ALA ALA GLN ALA ILE ARG SER TYR GLY SEQRES 11 B 323 THR ASP ALA PHE GLU SER ALA LEU VAL ASP PHE LEU SER SEQRES 12 B 323 LYS ALA SER ASP THR VAL ARG ALA ARG ALA GLU ALA LEU SEQRES 13 B 323 ARG ALA ALA MET ILE SER VAL ASP LEU ALA ASP GLY ASP SEQRES 14 B 323 GLU PHE LEU LEU SER PRO ALA GLY GLN ASN PRO LEU LEU SEQRES 15 B 323 LYS LYS MET VAL GLU GLU PHE MET PRO ARG PHE ALA PRO SEQRES 16 B 323 GLY ALA LYS VAL LEU TYR ILE GLY ASP THR ARG GLY LYS SEQRES 17 B 323 HIS THR ARG PHE GLU LYS ARG ILE PHE GLU GLU THR LEU SEQRES 18 B 323 GLY LEU THR PHE ASP PRO HIS GLY ARG MET PRO ASP LEU SEQRES 19 B 323 VAL LEU HIS ASP LYS VAL ARG LYS TRP LEU PHE LEU MET SEQRES 20 B 323 GLU ALA VAL LYS SER LYS GLY PRO PHE ASP GLU GLU ARG SEQRES 21 B 323 HIS ARG THR LEU ARG GLU LEU PHE ALA THR PRO VAL ALA SEQRES 22 B 323 GLY LEU VAL PHE VAL ASN CYS PHE GLU ASN ARG GLU ALA SEQRES 23 B 323 MET ARG GLN TRP LEU PRO GLU LEU ALA TRP GLU THR GLU SEQRES 24 B 323 ALA TRP VAL ALA ASP ASP PRO ASP HIS LEU ILE HIS LEU SEQRES 25 B 323 ASN GLY SER ARG PHE LEU GLY PRO TYR GLU ARG HET SO4 A1324 5 HET SO4 A1325 5 HET SO4 A1326 5 HET SO4 A1327 5 HET SO4 A1328 5 HET EPE A1329 15 HET TRS A1330 8 HET SO4 B1324 5 HET SO4 B1325 5 HET SO4 B1326 5 HET SO4 B1327 5 HET EPE B1328 15 HET TRS B1329 8 HETNAM SO4 SULFATE ION HETNAM EPE 4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID HETNAM TRS 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL HETSYN EPE HEPES HETSYN TRS TRIS BUFFER FORMUL 3 SO4 9(O4 S 2-) FORMUL 8 EPE 2(C8 H18 N2 O4 S) FORMUL 9 TRS 2(C4 H12 N O3 1+) FORMUL 16 HOH *470(H2 O) HELIX 1 1 THR A 13 PHE A 24 1 12 HELIX 2 2 GLU A 27 HIS A 31 5 5 HELIX 3 3 ASN A 32 ALA A 43 1 12 HELIX 4 4 TRP A 51 SER A 54 5 4 HELIX 5 5 VAL A 61 TRP A 72 1 12 HELIX 6 6 ALA A 77 GLY A 79 5 3 HELIX 7 7 SER A 80 THR A 88 1 9 HELIX 8 8 THR A 88 ASN A 95 1 8 HELIX 9 9 SER A 119 TYR A 129 1 11 HELIX 10 10 ALA A 133 SER A 143 1 11 HELIX 11 11 SER A 146 ALA A 159 1 14 HELIX 12 12 GLN A 178 GLU A 188 1 11 HELIX 13 13 GLU A 188 ALA A 194 1 7 HELIX 14 14 GLU A 213 THR A 220 1 8 HELIX 15 15 ASP A 257 PHE A 268 1 12 HELIX 16 16 ASN A 283 ARG A 288 1 6 HELIX 17 17 GLN A 289 LEU A 294 5 6 HELIX 18 18 GLY A 314 LEU A 318 5 5 HELIX 19 19 THR B 13 PHE B 24 1 12 HELIX 20 20 GLU B 27 HIS B 31 5 5 HELIX 21 21 ASN B 32 ALA B 43 1 12 HELIX 22 22 TRP B 51 SER B 54 5 4 HELIX 23 23 GLY B 60 TRP B 72 1 13 HELIX 24 24 ALA B 77 GLY B 79 5 3 HELIX 25 25 SER B 80 THR B 88 1 9 HELIX 26 26 THR B 88 ASN B 95 1 8 HELIX 27 27 SER B 119 SER B 128 1 10 HELIX 28 28 ALA B 133 ALA B 145 1 13 HELIX 29 29 SER B 146 ALA B 159 1 14 HELIX 30 30 GLN B 178 GLU B 188 1 11 HELIX 31 31 GLU B 188 ALA B 194 1 7 HELIX 32 32 GLU B 213 GLY B 222 1 10 HELIX 33 33 ASP B 257 PHE B 268 1 12 HELIX 34 34 ASN B 283 ARG B 288 1 6 HELIX 35 35 GLN B 289 LEU B 294 5 6 HELIX 36 36 GLY B 314 LEU B 318 5 5 SHEET 1 AA 3 LEU A 59 GLY A 60 0 SHEET 2 AA 3 GLU A 115 LEU A 118 -1 O TYR A 116 N LEU A 59 SHEET 3 AA 3 ALA A 98 LEU A 100 -1 O VAL A 99 N CYS A 117 SHEET 1 AB 2 ILE A 161 ALA A 166 0 SHEET 2 AB 2 ASP A 169 LEU A 173 -1 O ASP A 169 N LEU A 165 SHEET 1 AC 7 THR A 210 PHE A 212 0 SHEET 2 AC 7 LYS A 198 GLY A 203 -1 O ILE A 202 N ARG A 211 SHEET 3 AC 7 LEU A 234 ASP A 238 -1 O VAL A 235 N LEU A 200 SHEET 4 AC 7 TRP A 243 ALA A 249 -1 O TRP A 243 N ASP A 238 SHEET 5 AC 7 GLY A 274 PHE A 281 1 O GLY A 274 N LEU A 244 SHEET 6 AC 7 THR A 298 VAL A 302 1 O GLU A 299 N ASN A 279 SHEET 7 AC 7 ILE A 310 LEU A 312 -1 O ILE A 310 N ALA A 300 SHEET 1 BA 2 ALA B 98 LEU B 100 0 SHEET 2 BA 2 TYR B 116 LEU B 118 -1 O CYS B 117 N VAL B 99 SHEET 1 BB 2 ILE B 161 ALA B 166 0 SHEET 2 BB 2 ASP B 169 LEU B 173 -1 O ASP B 169 N LEU B 165 SHEET 1 BC 7 THR B 210 PHE B 212 0 SHEET 2 BC 7 LYS B 198 GLY B 203 -1 O ILE B 202 N ARG B 211 SHEET 3 BC 7 LEU B 234 ASP B 238 -1 O VAL B 235 N LEU B 200 SHEET 4 BC 7 TRP B 243 ALA B 249 -1 O TRP B 243 N ASP B 238 SHEET 5 BC 7 GLY B 274 PHE B 281 1 O GLY B 274 N LEU B 244 SHEET 6 BC 7 THR B 298 VAL B 302 1 O GLU B 299 N ASN B 279 SHEET 7 BC 7 ILE B 310 LEU B 312 -1 O ILE B 310 N ALA B 300 SITE 1 AC1 7 GLY A 314 SER A 315 ARG A 316 HOH A2186 SITE 2 AC1 7 HOH A2187 TYR B 321 ARG B 323 SITE 1 AC2 4 ARG A 206 LYS A 251 SER A 252 HOH A2188 SITE 1 AC3 2 ARG A 34 LYS A 87 SITE 1 AC4 1 ARG A 18 SITE 1 AC5 4 LYS A 46 TRP A 67 HOH A2144 HOH A2189 SITE 1 AC6 4 ARG B 81 ARG B 85 HOH B2092 HOH B2275 SITE 1 AC7 3 ARG B 85 LYS B 86 ASN B 110 SITE 1 AC8 2 LYS B 86 ARG B 90 SITE 1 AC9 1 ARG B 18 SITE 1 BC1 7 ALA A 19 SER A 23 TYR A 129 GLU A 135 SITE 2 BC1 7 HOH A2190 HOH A2191 HOH A2192 SITE 1 BC2 5 GLU A 282 ASN A 283 ALA A 286 GLY B 177 SITE 2 BC2 5 ARG B 206 SITE 1 BC3 9 ALA B 19 LYS B 22 SER B 23 TYR B 129 SITE 2 BC3 9 GLU B 135 LYS B 208 HIS B 209 HOH B2276 SITE 3 BC3 9 HOH B2277 SITE 1 BC4 8 GLY B 25 PHE B 26 GLU B 27 ARG B 30 SITE 2 BC4 8 ASN B 95 THR B 148 VAL B 149 ARG B 152 CRYST1 66.901 237.991 111.404 90.00 90.00 90.00 C 2 2 21 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 0.014947 0.000000 0.000000 0.00000 SCALE2 0.000000 0.004202 0.000000 0.00000 SCALE3 0.000000 0.000000 0.008976 0.00000