HEADER HYDROLASE 14-AUG-13 4C1X TITLE CARBOHYDRATE BINDING DOMAIN FROM STREPTOCOCCUS PNEUMONIAE NANA TITLE 2 SIALIDASE COMPLEXED WITH 6'-SIALYLLACTOSE COMPND MOL_ID: 1; COMPND 2 MOLECULE: SIALIDASE A; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: CBM40, RESIDUES 121-305; COMPND 5 SYNONYM: NEURAMINIDASE A; COMPND 6 EC: 3.2.1.18; COMPND 7 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: STREPTOCOCCUS PNEUMONIAE; SOURCE 3 ORGANISM_TAXID: 1313; SOURCE 4 STRAIN: R36A / NCTC 10319; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21(DE3) KEYWDS HYDROLASE, SIALIC ACID BINDING EXPDTA X-RAY DIFFRACTION AUTHOR L.YANG,H.CONNARIS,J.A.POTTER,G.L.TAYLOR REVDAT 4 08-MAY-24 4C1X 1 HETSYN REVDAT 3 29-JUL-20 4C1X 1 COMPND REMARK HETNAM LINK REVDAT 3 2 1 SITE ATOM REVDAT 2 02-SEP-15 4C1X 1 JRNL REVDAT 1 10-SEP-14 4C1X 0 JRNL AUTH L.YANG,H.CONNARIS,J.A.POTTER,G.L.TAYLOR JRNL TITL STRUCTURAL CHARACTERIZATION OF THE CARBOHYDRATE-BINDING JRNL TITL 2 MODULE OF NANA SIALIDASE, A PNEUMOCOCCAL VIRULENCE FACTOR. JRNL REF BMC STRUCT.BIOL. V. 15 15 2015 JRNL REFN ESSN 1472-6807 JRNL PMID 26289431 JRNL DOI 10.1186/S12900-015-0042-4 REMARK 2 REMARK 2 RESOLUTION. 1.84 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.6.0117 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) : 1.84 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 44.55 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 97.4 REMARK 3 NUMBER OF REFLECTIONS : 12950 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) : 0.152 REMARK 3 R VALUE (WORKING SET) : 0.150 REMARK 3 FREE R VALUE : 0.195 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 678 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) : 1.84 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.89 REMARK 3 REFLECTION IN BIN (WORKING SET) : 839 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 88.56 REMARK 3 BIN R VALUE (WORKING SET) : 0.1740 REMARK 3 BIN FREE R VALUE SET COUNT : 51 REMARK 3 BIN FREE R VALUE : 0.3270 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1482 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 51 REMARK 3 SOLVENT ATOMS : 148 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 17.38 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.58000 REMARK 3 B22 (A**2) : -0.69000 REMARK 3 B33 (A**2) : -0.02000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : -0.56000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.151 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.135 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.083 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 2.683 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.965 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.946 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1613 ; 0.020 ; 0.020 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 2196 ; 2.078 ; 1.987 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 199 ; 7.520 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 73 ;40.486 ;24.521 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 279 ;14.981 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 11 ;13.987 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 251 ; 0.189 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1209 ; 0.012 ; 0.021 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): NULL ; NULL ; NULL 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): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): NULL ; NULL ; NULL 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): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL 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 : MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.20 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN USED IF PRESENT IN REMARK 3 THE INPUT REMARK 4 REMARK 4 4C1X COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 14-AUG-13. REMARK 100 THE DEPOSITION ID IS D_1290058043. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 9 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : RIGAKU CCD REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 14005 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.840 REMARK 200 RESOLUTION RANGE LOW (A) : 44.500 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 97.0 REMARK 200 DATA REDUNDANCY : 3.100 REMARK 200 R MERGE (I) : 0.06000 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 37.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.84 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.90 REMARK 200 COMPLETENESS FOR SHELL (%) : 85.0 REMARK 200 DATA REDUNDANCY IN SHELL : 2.30 REMARK 200 R MERGE FOR SHELL (I) : 0.10000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 11.00 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: OTHER REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: NONE REMARK 200 REMARK 200 REMARK: NONE REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 36.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.92 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 9 REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,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 22.27550 REMARK 290 SMTRY3 2 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: MONOMERIC REMARK 350 SOFTWARE USED: PISA 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 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 ALA A 162 O HOH A 2046 1.75 REMARK 500 NH2 ARG A 253 O HOH A 2086 2.12 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 OH TYR A 188 O HOH A 2047 2555 1.98 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 HIS A 266 CG HIS A 266 CD2 0.056 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 ASP A 210 CB - CG - OD1 ANGL. DEV. = 7.2 DEGREES REMARK 500 LEU A 252 CB - CG - CD1 ANGL. DEV. = 10.5 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 LYS A 163 72.01 -111.52 REMARK 500 LYS A 163 72.01 68.58 REMARK 500 ASN A 190 -16.05 70.79 REMARK 500 PHE A 257 -150.79 -154.30 REMARK 500 ALA A 275 -123.03 47.53 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 4C1W RELATED DB: PDB REMARK 900 CARBOHYDRATE BINDING DOMAIN FROM STREPTOCOCCUS PNEUMONIAE DBREF 4C1X A 121 305 UNP P62575 NANA_STREE 121 305 SEQADV 4C1X GLY A 118 UNP P62575 EXPRESSION TAG SEQADV 4C1X ALA A 119 UNP P62575 EXPRESSION TAG SEQADV 4C1X MET A 120 UNP P62575 EXPRESSION TAG SEQRES 1 A 188 GLY ALA MET VAL ILE GLU LYS GLU ASP VAL GLU THR ASN SEQRES 2 A 188 ALA SER ASN GLY GLN ARG VAL ASP LEU SER SER GLU LEU SEQRES 3 A 188 ASP LYS LEU LYS LYS LEU GLU ASN ALA THR VAL HIS MET SEQRES 4 A 188 GLU PHE LYS PRO ASP ALA LYS ALA PRO ALA PHE TYR ASN SEQRES 5 A 188 LEU PHE SER VAL SER SER ALA THR LYS LYS ASP GLU TYR SEQRES 6 A 188 PHE THR MET ALA VAL TYR ASN ASN THR ALA THR LEU GLU SEQRES 7 A 188 GLY ARG GLY SER ASP GLY LYS GLN PHE TYR ASN ASN TYR SEQRES 8 A 188 ASN ASP ALA PRO LEU LYS VAL LYS PRO GLY GLN TRP ASN SEQRES 9 A 188 SER VAL THR PHE THR VAL GLU LYS PRO THR ALA GLU LEU SEQRES 10 A 188 PRO LYS GLY ARG VAL ARG LEU TYR VAL ASN GLY VAL LEU SEQRES 11 A 188 SER ARG THR SER LEU ARG SER GLY ASN PHE ILE LYS ASP SEQRES 12 A 188 MET PRO ASP VAL THR HIS VAL GLN ILE GLY ALA THR LYS SEQRES 13 A 188 ARG ALA ASN ASN THR VAL TRP GLY SER ASN LEU GLN ILE SEQRES 14 A 188 ARG ASN LEU THR VAL TYR ASN ARG ALA LEU THR PRO GLU SEQRES 15 A 188 GLU VAL GLN LYS ARG SER HET BGC B 1 12 HET GAL B 2 11 HET SIA B 3 20 HET TRS A1309 8 HETNAM BGC BETA-D-GLUCOPYRANOSE HETNAM GAL BETA-D-GALACTOPYRANOSE HETNAM SIA N-ACETYL-ALPHA-NEURAMINIC ACID HETNAM TRS 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL HETSYN BGC BETA-D-GLUCOSE; D-GLUCOSE; GLUCOSE HETSYN GAL BETA-D-GALACTOSE; D-GALACTOSE; GALACTOSE HETSYN SIA N-ACETYLNEURAMINIC ACID; SIALIC ACID; ALPHA-SIALIC HETSYN 2 SIA ACID; O-SIALIC ACID HETSYN TRS TRIS BUFFER FORMUL 2 BGC C6 H12 O6 FORMUL 2 GAL C6 H12 O6 FORMUL 2 SIA C11 H19 N O9 FORMUL 3 TRS C4 H12 N O3 1+ FORMUL 4 HOH *148(H2 O) HELIX 1 1 ASN A 130 GLY A 134 5 5 HELIX 2 2 GLU A 142 LYS A 148 1 7 HELIX 3 3 PHE A 257 MET A 261 5 5 HELIX 4 4 THR A 297 ARG A 304 1 8 SHEET 1 AA 6 MET A 120 THR A 129 0 SHEET 2 AA 6 LEU A 284 TYR A 292 -1 O LEU A 284 N THR A 129 SHEET 3 AA 6 ALA A 152 PRO A 160 -1 O THR A 153 N TYR A 292 SHEET 4 AA 6 ASN A 221 GLU A 228 -1 O ASN A 221 N PHE A 158 SHEET 5 AA 6 ARG A 238 VAL A 243 -1 O ARG A 238 N GLU A 228 SHEET 6 AA 6 VAL A 246 SER A 251 -1 O VAL A 246 N VAL A 243 SHEET 1 AB 5 ARG A 136 ASP A 138 0 SHEET 2 AB 5 HIS A 266 GLY A 270 -1 O ILE A 269 N VAL A 137 SHEET 3 AB 5 PHE A 167 SER A 174 -1 O SER A 172 N GLN A 268 SHEET 4 AB 5 TYR A 182 TYR A 188 -1 O PHE A 183 N VAL A 173 SHEET 5 AB 5 THR A 191 ARG A 197 -1 O THR A 191 N TYR A 188 SHEET 1 AC 2 THR A 272 ARG A 274 0 SHEET 2 AC 2 ASN A 277 VAL A 279 -1 O ASN A 277 N ARG A 274 LINK O4 BGC B 1 C1 GAL B 2 1555 1555 1.43 LINK O6 GAL B 2 C2 SIA B 3 1555 1555 1.48 CRYST1 42.544 44.551 43.003 90.00 96.99 90.00 P 1 21 1 2 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 0.023505 0.000000 0.002882 0.00000 SCALE2 0.000000 0.022446 0.000000 0.00000 SCALE3 0.000000 0.000000 0.023428 0.00000