HEADER SUGAR BINDING PROTEIN 20-SEP-18 6IFI TITLE CRYSTAL STRUCTURE OF THE APO FORM OF CMP-N-ACETYLNEURAMINATE TITLE 2 SYNTHETASE FROM VIBRIO CHOLERAE COMPND MOL_ID: 1; COMPND 2 MOLECULE: CMP-N-ACETYLNEURAMINATE SYNTHETASE; COMPND 3 CHAIN: A, B; COMPND 4 EC: 2.7.7.43; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: VIBRIO CHOLERAE; SOURCE 3 ORGANISM_TAXID: 666; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS BACTERIAL, CMP-SIALIC ACID SYNTHETASE, SIALIC ACID, CTP, SUGAR KEYWDS 2 BINDING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR S.BOSE,R.SUBRAMANIAN REVDAT 2 22-NOV-23 6IFI 1 LINK REVDAT 1 03-JUL-19 6IFI 0 JRNL AUTH S.BOSE,D.PURKAIT,D.JOSEPH,V.NAYAK,R.SUBRAMANIAN JRNL TITL STRUCTURAL AND FUNCTIONAL CHARACTERIZATION OF JRNL TITL 2 CMP-N-ACETYLNEURAMINATE SYNTHETASE FROM VIBRIO CHOLERAE. JRNL REF ACTA CRYSTALLOGR D STRUCT V. 75 564 2019 JRNL REF 2 BIOL JRNL REFN ISSN 2059-7983 JRNL PMID 31205019 JRNL DOI 10.1107/S2059798319006831 REMARK 2 REMARK 2 RESOLUTION. 2.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : BUSTER 2.10.3 REMARK 3 AUTHORS : BRICOGNE,BLANC,BRANDL,FLENSBURG,KELLER, REMARK 3 : PACIOREK,ROVERSI,SHARFF,SMART,VONRHEIN, REMARK 3 : WOMACK,MATTHEWS,TEN EYCK,TRONRUD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 25.08 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.2 REMARK 3 NUMBER OF REFLECTIONS : 14951 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) : 0.213 REMARK 3 R VALUE (WORKING SET) : 0.212 REMARK 3 FREE R VALUE : 0.240 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.640 REMARK 3 FREE R VALUE TEST SET COUNT : 843 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 42 REMARK 3 BIN RESOLUTION RANGE HIGH (ANGSTROMS) : 2.80 REMARK 3 BIN RESOLUTION RANGE LOW (ANGSTROMS) : 2.83 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 87.25 REMARK 3 REFLECTIONS IN BIN (WORKING + TEST SET) : 356 REMARK 3 BIN R VALUE (WORKING + TEST SET) : 0.2671 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 332 REMARK 3 BIN R VALUE (WORKING SET) : 0.2651 REMARK 3 BIN FREE R VALUE : 0.2969 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 6.74 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 24 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.000 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 3288 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 2 REMARK 3 SOLVENT ATOMS : 66 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 64.35 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -0.70150 REMARK 3 B22 (A**2) : -0.70150 REMARK 3 B33 (A**2) : 1.40290 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 COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.400 REMARK 3 DPI (BLOW EQ-10) BASED ON R VALUE (A) : 0.749 REMARK 3 DPI (BLOW EQ-9) BASED ON FREE R VALUE (A) : 0.308 REMARK 3 DPI (CRUICKSHANK) BASED ON R VALUE (A) : 0.881 REMARK 3 DPI (CRUICKSHANK) BASED ON FREE R VALUE (A) : 0.319 REMARK 3 REMARK 3 REFERENCES: BLOW, D. (2002) ACTA CRYST D58, 792-797 REMARK 3 CRUICKSHANK, D.W.J. (1999) ACTA CRYST D55, 583-601 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.924 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.905 REMARK 3 REMARK 3 NUMBER OF GEOMETRIC FUNCTION TERMS DEFINED : 15 REMARK 3 TERM COUNT WEIGHT FUNCTION. REMARK 3 BOND LENGTHS : 3362 ; 2.000 ; HARMONIC REMARK 3 BOND ANGLES : 4586 ; 2.000 ; HARMONIC REMARK 3 TORSION ANGLES : 1098 ; 2.000 ; SINUSOIDAL REMARK 3 TRIGONAL CARBON PLANES : NULL ; NULL ; NULL REMARK 3 GENERAL PLANES : 563 ; 5.000 ; HARMONIC REMARK 3 ISOTROPIC THERMAL FACTORS : 3362 ; 20.000 ; HARMONIC REMARK 3 BAD NON-BONDED CONTACTS : 0 ; 5.000 ; SEMIHARMONIC REMARK 3 IMPROPER TORSIONS : NULL ; NULL ; NULL REMARK 3 PSEUDOROTATION ANGLES : NULL ; NULL ; NULL REMARK 3 CHIRAL IMPROPER TORSION : 468 ; 5.000 ; SEMIHARMONIC REMARK 3 SUM OF OCCUPANCIES : NULL ; NULL ; NULL REMARK 3 UTILITY DISTANCES : NULL ; NULL ; NULL REMARK 3 UTILITY ANGLES : NULL ; NULL ; NULL REMARK 3 UTILITY TORSION : NULL ; NULL ; NULL REMARK 3 IDEAL-DIST CONTACT TERM : 3776 ; 4.000 ; SEMIHARMONIC REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.010 REMARK 3 BOND ANGLES (DEGREES) : 1.20 REMARK 3 PEPTIDE OMEGA TORSION ANGLES (DEGREES) : 2.76 REMARK 3 OTHER TORSION ANGLES (DEGREES) : 19.40 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 6IFI COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 03-OCT-18. REMARK 100 THE DEPOSITION ID IS D_1300009105. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 28-JUN-16 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 8.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SOLEIL REMARK 200 BEAMLINE : PROXIMA 1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9786 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS 6M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : AIMLESS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 14951 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.800 REMARK 200 RESOLUTION RANGE LOW (A) : 47.870 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 200 DATA REDUNDANCY : 6.700 REMARK 200 R MERGE (I) : 0.07000 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 16.7000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.80 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.95 REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.86000 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: PHASER REMARK 200 STARTING MODEL: 1EZI REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 54.91 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.73 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 8000, CALCIUM ACETATE, IMIDAZOLE, REMARK 280 PH 8.0, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 291K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 41 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 -Y,X,Z+1/4 REMARK 290 4555 Y,-X,Z+3/4 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 54.79500 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 27.39750 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 82.19250 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: 3000 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 19730 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -27.0 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 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 -16 REMARK 465 HIS A -15 REMARK 465 HIS A -14 REMARK 465 HIS A -13 REMARK 465 HIS A -12 REMARK 465 HIS A -11 REMARK 465 HIS A -10 REMARK 465 ILE A -9 REMARK 465 THR A -8 REMARK 465 SER A -7 REMARK 465 LEU A -6 REMARK 465 TYR A -5 REMARK 465 LYS A -4 REMARK 465 LYS A -3 REMARK 465 ALA A -2 REMARK 465 GLY A -1 REMARK 465 PHE A 0 REMARK 465 MET A 1 REMARK 465 SER A 2 REMARK 465 ARG A 12 REMARK 465 GLY A 13 REMARK 465 GLY A 14 REMARK 465 SER A 15 REMARK 465 LYS A 16 REMARK 465 GLY A 17 REMARK 465 LEU A 18 REMARK 465 LEU A 19 REMARK 465 GLU A 74 REMARK 465 LEU A 75 REMARK 465 ALA A 76 REMARK 465 THR A 77 REMARK 465 ASP A 78 REMARK 465 THR A 79 REMARK 465 LEU A 227 REMARK 465 LYS A 228 REMARK 465 ILE A 229 REMARK 465 LYS A 230 REMARK 465 GLU A 231 REMARK 465 ILE A 232 REMARK 465 ASN A 233 REMARK 465 LYS A 234 REMARK 465 MET B -16 REMARK 465 HIS B -15 REMARK 465 HIS B -14 REMARK 465 HIS B -13 REMARK 465 HIS B -12 REMARK 465 HIS B -11 REMARK 465 HIS B -10 REMARK 465 ILE B -9 REMARK 465 THR B -8 REMARK 465 SER B -7 REMARK 465 LEU B -6 REMARK 465 TYR B -5 REMARK 465 LYS B -4 REMARK 465 LYS B -3 REMARK 465 ALA B -2 REMARK 465 GLY B -1 REMARK 465 PHE B 0 REMARK 465 MET B 1 REMARK 465 SER B 2 REMARK 465 LYS B 16 REMARK 465 GLY B 17 REMARK 465 LEU B 18 REMARK 465 GLU B 74 REMARK 465 LEU B 75 REMARK 465 ALA B 76 REMARK 465 THR B 77 REMARK 465 ASP B 78 REMARK 465 ILE B 229 REMARK 465 LYS B 230 REMARK 465 GLU B 231 REMARK 465 ILE B 232 REMARK 465 ASN B 233 REMARK 465 LYS B 234 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 ARG A 20 CG CD NE CZ NH1 NH2 REMARK 470 LYS A 21 CD CE NZ REMARK 470 LYS A 47 CD CE NZ REMARK 470 LYS A 59 CG CD CE NZ REMARK 470 GLU A 73 CG CD OE1 OE2 REMARK 470 ASP A 84 CG OD1 OD2 REMARK 470 LYS A 96 NZ REMARK 470 GLN A 99 CD OE1 NE2 REMARK 470 LYS A 100 CG CD CE NZ REMARK 470 LYS A 120 CE NZ REMARK 470 LYS A 128 CD CE NZ REMARK 470 LYS A 132 CG CD CE NZ REMARK 470 GLN A 170 CD OE1 NE2 REMARK 470 ARG A 174 CZ NH1 NH2 REMARK 470 GLU A 189 CD OE1 OE2 REMARK 470 LYS A 191 CE NZ REMARK 470 ASN A 199 CG OD1 ND2 REMARK 470 LYS A 200 CG CD CE NZ REMARK 470 GLU A 218 CG CD OE1 OE2 REMARK 470 ARG A 221 CG CD NE CZ NH1 NH2 REMARK 470 LYS A 222 CD CE NZ REMARK 470 GLU A 224 CG CD OE1 OE2 REMARK 470 GLU A 225 CG CD OE1 OE2 REMARK 470 GLN A 226 CG CD OE1 NE2 REMARK 470 ARG B 12 CG CD NE CZ NH1 NH2 REMARK 470 LYS B 59 CD CE NZ REMARK 470 GLU B 73 CG CD OE1 OE2 REMARK 470 LYS B 100 CG CD CE NZ REMARK 470 LYS B 120 CE NZ REMARK 470 LYS B 128 CD CE NZ REMARK 470 GLU B 150 CG CD OE1 OE2 REMARK 470 ASP B 152 CG OD1 OD2 REMARK 470 GLN B 170 CD OE1 NE2 REMARK 470 ARG B 174 NE CZ NH1 NH2 REMARK 470 LYS B 191 CE NZ REMARK 470 LYS B 200 CG CD CE NZ REMARK 470 GLU B 225 CG CD OE1 OE2 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 HIS A 27 43.74 39.75 REMARK 500 SER A 111 62.05 -119.06 REMARK 500 ASP A 215 -50.64 -121.47 REMARK 500 SER B 111 61.85 -117.83 REMARK 500 LEU B 227 70.53 -68.39 REMARK 500 REMARK 500 REMARK: NULL 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 CA A 301 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 412 O REMARK 620 2 HOH A 414 O 103.1 REMARK 620 3 HOH A 421 O 111.9 63.0 REMARK 620 4 HOH A 430 O 114.4 127.6 126.2 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA B 301 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH B 418 O REMARK 620 2 HOH B 424 O 146.8 REMARK 620 3 HOH B 425 O 88.8 64.3 REMARK 620 4 HOH B 431 O 61.8 146.9 117.0 REMARK 620 5 HOH B 432 O 101.3 103.4 167.3 75.0 REMARK 620 N 1 2 3 4 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue CA A 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue CA B 301 DBREF 6IFI A -16 234 PDB 6IFI 6IFI -16 234 DBREF 6IFI B -16 234 PDB 6IFI 6IFI -16 234 SEQRES 1 A 251 MET HIS HIS HIS HIS HIS HIS ILE THR SER LEU TYR LYS SEQRES 2 A 251 LYS ALA GLY PHE MET SER ASN GLU TYR VAL ALA LEU ILE SEQRES 3 A 251 THR ALA ARG GLY GLY SER LYS GLY LEU LEU ARG LYS ASN SEQRES 4 A 251 VAL LEU PRO LEU HIS GLY ILE PRO LEU ILE GLY TRP THR SEQRES 5 A 251 ILE LYS ALA ALA GLN GLY CYS SER TYR ILE SER LYS VAL SEQRES 6 A 251 PHE VAL SER THR ASP ASP TYR GLU ILE ALA LYS ILE SER SEQRES 7 A 251 GLU GLY LEU GLY ALA LEU VAL ILE ASN ARG PRO GLU GLU SEQRES 8 A 251 LEU ALA THR ASP THR ALA SER SER ILE ASP VAL ILE LEU SEQRES 9 A 251 HIS ALA ILE SER TRP LEU GLU GLN LYS GLU VAL GLN LYS SEQRES 10 A 251 TYR GLU GLY MET ILE LEU LEU GLN PRO THR SER PRO LEU SEQRES 11 A 251 ARG THR SER HIS HIS ILE LYS GLU ALA ILE GLU LEU TYR SEQRES 12 A 251 GLU LYS THR ALA ALA LYS PHE VAL ILE SER VAL PHE GLU SEQRES 13 A 251 PRO THR HIS THR PRO ILE LYS SER TYR LEU GLU ASN ASP SEQRES 14 A 251 ASP GLY THR ILE SER GLY LEU TYR SER ASN GLU ALA PRO SEQRES 15 A 251 TYR GLN ARG ARG GLN ASP LEU PRO ARG ALA TYR GLN PRO SEQRES 16 A 251 ASN GLY ALA ILE TYR ALA PHE SER ILE ASP GLU PHE LYS SEQRES 17 A 251 LEU ASN ASN HIS PHE PRO ARG ASN LYS VAL PHE PRO TYR SEQRES 18 A 251 VAL MET SER GLU VAL GLU SER ALA ASP ILE ASP THR LEU SEQRES 19 A 251 GLU ASP LEU ARG LYS VAL GLU GLU GLN LEU LYS ILE LYS SEQRES 20 A 251 GLU ILE ASN LYS SEQRES 1 B 251 MET HIS HIS HIS HIS HIS HIS ILE THR SER LEU TYR LYS SEQRES 2 B 251 LYS ALA GLY PHE MET SER ASN GLU TYR VAL ALA LEU ILE SEQRES 3 B 251 THR ALA ARG GLY GLY SER LYS GLY LEU LEU ARG LYS ASN SEQRES 4 B 251 VAL LEU PRO LEU HIS GLY ILE PRO LEU ILE GLY TRP THR SEQRES 5 B 251 ILE LYS ALA ALA GLN GLY CYS SER TYR ILE SER LYS VAL SEQRES 6 B 251 PHE VAL SER THR ASP ASP TYR GLU ILE ALA LYS ILE SER SEQRES 7 B 251 GLU GLY LEU GLY ALA LEU VAL ILE ASN ARG PRO GLU GLU SEQRES 8 B 251 LEU ALA THR ASP THR ALA SER SER ILE ASP VAL ILE LEU SEQRES 9 B 251 HIS ALA ILE SER TRP LEU GLU GLN LYS GLU VAL GLN LYS SEQRES 10 B 251 TYR GLU GLY MET ILE LEU LEU GLN PRO THR SER PRO LEU SEQRES 11 B 251 ARG THR SER HIS HIS ILE LYS GLU ALA ILE GLU LEU TYR SEQRES 12 B 251 GLU LYS THR ALA ALA LYS PHE VAL ILE SER VAL PHE GLU SEQRES 13 B 251 PRO THR HIS THR PRO ILE LYS SER TYR LEU GLU ASN ASP SEQRES 14 B 251 ASP GLY THR ILE SER GLY LEU TYR SER ASN GLU ALA PRO SEQRES 15 B 251 TYR GLN ARG ARG GLN ASP LEU PRO ARG ALA TYR GLN PRO SEQRES 16 B 251 ASN GLY ALA ILE TYR ALA PHE SER ILE ASP GLU PHE LYS SEQRES 17 B 251 LEU ASN ASN HIS PHE PRO ARG ASN LYS VAL PHE PRO TYR SEQRES 18 B 251 VAL MET SER GLU VAL GLU SER ALA ASP ILE ASP THR LEU SEQRES 19 B 251 GLU ASP LEU ARG LYS VAL GLU GLU GLN LEU LYS ILE LYS SEQRES 20 B 251 GLU ILE ASN LYS HET CA A 301 1 HET CA B 301 1 HETNAM CA CALCIUM ION FORMUL 3 CA 2(CA 2+) FORMUL 5 HOH *66(H2 O) HELIX 1 AA1 ARG A 20 VAL A 23 5 4 HELIX 2 AA2 LEU A 31 GLY A 41 1 11 HELIX 3 AA3 ASP A 54 LEU A 64 1 11 HELIX 4 AA4 SER A 81 GLU A 97 1 17 HELIX 5 AA5 THR A 115 THR A 129 1 15 HELIX 6 AA6 THR A 143 LYS A 146 5 4 HELIX 7 AA7 GLU A 163 GLN A 167 5 5 HELIX 8 AA8 ILE A 187 ASN A 194 1 8 HELIX 9 AA9 THR A 216 GLU A 225 1 10 HELIX 10 AB1 ARG B 20 VAL B 23 5 4 HELIX 11 AB2 LEU B 31 GLY B 41 1 11 HELIX 12 AB3 ASP B 54 LEU B 64 1 11 HELIX 13 AB4 SER B 81 GLU B 97 1 17 HELIX 14 AB5 THR B 115 THR B 129 1 15 HELIX 15 AB6 THR B 143 LYS B 146 5 4 HELIX 16 AB7 GLU B 163 GLN B 167 5 5 HELIX 17 AB8 ILE B 187 ASN B 194 1 8 HELIX 18 AB9 THR B 216 LEU B 227 1 12 SHEET 1 AA1 7 LEU A 67 ASN A 70 0 SHEET 2 AA1 7 ILE A 45 THR A 52 1 N VAL A 48 O LEU A 67 SHEET 3 AA1 7 TYR A 5 THR A 10 1 N ALA A 7 O PHE A 49 SHEET 4 AA1 7 GLY A 103 LEU A 106 1 O ILE A 105 N VAL A 6 SHEET 5 AA1 7 ALA A 175 SER A 186 -1 O TYR A 183 N LEU A 106 SHEET 6 AA1 7 PHE A 133 PHE A 138 -1 N VAL A 134 O ALA A 184 SHEET 7 AA1 7 VAL A 201 VAL A 205 1 O TYR A 204 N VAL A 137 SHEET 1 AA2 7 LEU A 67 ASN A 70 0 SHEET 2 AA2 7 ILE A 45 THR A 52 1 N VAL A 48 O LEU A 67 SHEET 3 AA2 7 TYR A 5 THR A 10 1 N ALA A 7 O PHE A 49 SHEET 4 AA2 7 GLY A 103 LEU A 106 1 O ILE A 105 N VAL A 6 SHEET 5 AA2 7 ALA A 175 SER A 186 -1 O TYR A 183 N LEU A 106 SHEET 6 AA2 7 TYR B 148 GLU B 150 -1 O TYR B 148 N TYR A 176 SHEET 7 AA2 7 ILE B 156 GLY B 158 -1 O SER B 157 N LEU B 149 SHEET 1 AA3 2 PRO A 25 LEU A 26 0 SHEET 2 AA3 2 ILE A 29 PRO A 30 -1 O ILE A 29 N LEU A 26 SHEET 1 AA4 7 ILE A 156 GLY A 158 0 SHEET 2 AA4 7 TYR A 148 GLU A 150 -1 N LEU A 149 O SER A 157 SHEET 3 AA4 7 ALA B 175 SER B 186 -1 O TYR B 176 N TYR A 148 SHEET 4 AA4 7 GLY B 103 LEU B 106 -1 N LEU B 106 O TYR B 183 SHEET 5 AA4 7 TYR B 5 ALA B 11 1 N VAL B 6 O ILE B 105 SHEET 6 AA4 7 ILE B 45 THR B 52 1 O PHE B 49 N ALA B 7 SHEET 7 AA4 7 LEU B 67 ASN B 70 1 O ILE B 69 N VAL B 50 SHEET 1 AA5 5 ILE A 156 GLY A 158 0 SHEET 2 AA5 5 TYR A 148 GLU A 150 -1 N LEU A 149 O SER A 157 SHEET 3 AA5 5 ALA B 175 SER B 186 -1 O TYR B 176 N TYR A 148 SHEET 4 AA5 5 PHE B 133 PHE B 138 -1 N VAL B 134 O ALA B 184 SHEET 5 AA5 5 VAL B 201 VAL B 205 1 O TYR B 204 N VAL B 137 SHEET 1 AA6 2 PRO B 25 LEU B 26 0 SHEET 2 AA6 2 ILE B 29 PRO B 30 -1 O ILE B 29 N LEU B 26 LINK CA CA A 301 O HOH A 412 1555 1555 2.69 LINK CA CA A 301 O HOH A 414 1555 1555 2.40 LINK CA CA A 301 O HOH A 421 1555 1555 2.71 LINK CA CA A 301 O HOH A 430 1555 1555 2.75 LINK CA CA B 301 O HOH B 418 1555 1555 2.79 LINK CA CA B 301 O HOH B 424 1555 1555 3.03 LINK CA CA B 301 O HOH B 425 1555 1555 2.98 LINK CA CA B 301 O HOH B 431 1555 1555 2.70 LINK CA CA B 301 O HOH B 432 1555 1555 2.69 SITE 1 AC1 5 GLU A 121 HOH A 412 HOH A 414 HOH A 421 SITE 2 AC1 5 HOH A 430 SITE 1 AC2 6 GLU B 121 HOH B 418 HOH B 424 HOH B 425 SITE 2 AC2 6 HOH B 431 HOH B 432 CRYST1 75.250 75.250 109.590 90.00 90.00 90.00 P 41 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 0.013289 0.000000 0.000000 0.00000 SCALE2 0.000000 0.013289 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009125 0.00000