HEADER HYDROLASE 04-NOV-23 8UVV TITLE THE NANJ SIALIDASE CATALYTIC DOMAIN IN COMPLEX WITH NEU5AC COMPND MOL_ID: 1; COMPND 2 MOLECULE: EXO-ALPHA-SIALIDASE NANJ; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: CLOSTRIDIUM PERFRINGENS; SOURCE 3 ORGANISM_TAXID: 1502; SOURCE 4 GENE: NANJ; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 6 EXPRESSION_SYSTEM_TAXID: 469008 KEYWDS SIALIDASE, HYDROLASE, SIALIC ACID EXPDTA X-RAY DIFFRACTION AUTHOR B.J.MEDLEY,A.B.BORASTON REVDAT 3 30-OCT-24 8UVV 1 JRNL REVDAT 2 25-SEP-24 8UVV 1 JRNL REVDAT 1 04-SEP-24 8UVV 0 JRNL AUTH B.J.MEDLEY,K.E.LOW,J.D.W.IRUNGU,L.KIPCHUMBA,P.DANESHGAR, JRNL AUTH 2 L.LIU,J.M.GARBER,L.KLASSEN,G.D.INGLIS,G.J.BOONS, JRNL AUTH 3 W.F.ZANDBERG,D.W.ABBOTT,A.B.BORASTON JRNL TITL A "TERMINAL" CASE OF GLYCAN CATABOLISM: STRUCTURAL AND JRNL TITL 2 ENZYMATIC CHARACTERIZATION OF THE SIALIDASES OF CLOSTRIDIUM JRNL TITL 3 PERFRINGENS. JRNL REF J.BIOL.CHEM. V. 300 07750 2024 JRNL REFN ESSN 1083-351X JRNL PMID 39251137 JRNL DOI 10.1016/J.JBC.2024.107750 REMARK 2 REMARK 2 RESOLUTION. 2.50 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 3.7 REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : GEOSTD + MONOMER LIBRARY + CDL V1.2 REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 19.67 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.330 REMARK 3 COMPLETENESS FOR RANGE (%) : 95.4 REMARK 3 NUMBER OF REFLECTIONS : 26829 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.219 REMARK 3 R VALUE (WORKING SET) : 0.217 REMARK 3 FREE R VALUE : 0.253 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.940 REMARK 3 FREE R VALUE TEST SET COUNT : 1325 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 19.6700 - 5.1700 0.98 3108 175 0.1869 0.2071 REMARK 3 2 5.1700 - 4.1200 0.95 2882 142 0.1516 0.1863 REMARK 3 3 4.1200 - 3.6000 0.95 2796 168 0.1906 0.2238 REMARK 3 4 3.6000 - 3.2700 0.97 2888 135 0.2217 0.2176 REMARK 3 5 3.2700 - 3.0400 0.95 2822 124 0.2689 0.3470 REMARK 3 6 3.0400 - 2.8600 0.93 2711 158 0.2956 0.3575 REMARK 3 7 2.8600 - 2.7200 0.93 2738 139 0.3069 0.3789 REMARK 3 8 2.7200 - 2.6000 0.95 2773 142 0.3114 0.3525 REMARK 3 9 2.6000 - 2.5000 0.96 2786 142 0.2997 0.3729 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.10 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : NULL REMARK 3 B_SOL : NULL REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.344 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 27.448 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 42.09 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 42.76 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 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.002 3561 REMARK 3 ANGLE : 0.600 4837 REMARK 3 CHIRALITY : 0.046 516 REMARK 3 PLANARITY : 0.004 639 REMARK 3 DIHEDRAL : 16.138 1307 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 8UVV COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 06-NOV-23. REMARK 100 THE DEPOSITION ID IS D_1000277732. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 20-JAN-22 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : NULL 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 MICROMAX-002 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.54 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS 200K REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 28058 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.500 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 (%) : 99.7 REMARK 200 DATA REDUNDANCY : 5.500 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 19.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.50 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.60 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: PHASER REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 68.63 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.92 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1M HEPES PH 7.5, 2.0M (NH4)2S04, REMARK 280 VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 291K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 64 2 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+1/3 REMARK 290 3555 -X+Y,-X,Z+2/3 REMARK 290 4555 -X,-Y,Z REMARK 290 5555 Y,-X+Y,Z+1/3 REMARK 290 6555 X-Y,X,Z+2/3 REMARK 290 7555 Y,X,-Z+1/3 REMARK 290 8555 X-Y,-Y,-Z REMARK 290 9555 -X,-X+Y,-Z+2/3 REMARK 290 10555 -Y,-X,-Z+1/3 REMARK 290 11555 -X+Y,Y,-Z REMARK 290 12555 X,X-Y,-Z+2/3 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 30.94767 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 61.89533 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 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 5 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 30.94767 REMARK 290 SMTRY1 6 0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 61.89533 REMARK 290 SMTRY1 7 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 7 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 30.94767 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 9 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 9 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 9 0.000000 0.000000 -1.000000 61.89533 REMARK 290 SMTRY1 10 0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 10 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 10 0.000000 0.000000 -1.000000 30.94767 REMARK 290 SMTRY1 11 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 11 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 11 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 12 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 12 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 12 0.000000 0.000000 -1.000000 61.89533 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA 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 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 CL CL A 902 LIES ON A SPECIAL POSITION. 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 376 CD NE CZ NH1 NH2 REMARK 470 LYS A 387 CD CE NZ REMARK 470 LYS A 388 CE NZ REMARK 470 LYS A 417 NZ REMARK 470 ASN A 420 CB CG OD1 ND2 REMARK 470 LYS A 427 CG CD CE NZ REMARK 470 ILE A 448 CD1 REMARK 470 GLU A 449 CB CG CD OE1 OE2 REMARK 470 GLU A 450 O REMARK 470 GLY A 452 O REMARK 470 ILE A 453 O REMARK 470 GLU A 454 OE1 REMARK 470 LYS A 455 CG CD CE NZ REMARK 470 ILE A 483 CG2 REMARK 470 ASP A 484 OD1 REMARK 470 LYS A 486 CG CD CE NZ REMARK 470 GLU A 511 CD OE1 OE2 REMARK 470 LYS A 520 CD CE NZ REMARK 470 GLU A 530 CD OE1 OE2 REMARK 470 LYS A 591 CE NZ REMARK 470 GLU A 594 OE1 OE2 REMARK 470 LYS A 596 CG CD CE NZ REMARK 470 GLU A 624 CD OE1 OE2 REMARK 470 LYS A 627 CE NZ REMARK 470 ALA A 636 CB REMARK 470 TYR A 743 O REMARK 470 ASP A 744 OD1 REMARK 470 ASN A 745 OD1 ND2 REMARK 470 GLU A 747 CD OE1 OE2 REMARK 470 LYS A 801 CG CD CE NZ REMARK 470 ASN A 803 OD1 REMARK 470 ALA A 804 O 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 361 114.48 -165.96 REMARK 500 ILE A 380 78.00 70.77 REMARK 500 LYS A 435 32.81 -92.68 REMARK 500 ASP A 440 99.33 65.97 REMARK 500 GLU A 450 -126.61 -79.60 REMARK 500 ASN A 451 -73.43 -66.22 REMARK 500 ASP A 484 -121.36 60.19 REMARK 500 ARG A 502 -137.48 -124.45 REMARK 500 LEU A 572 -57.98 -121.10 REMARK 500 LYS A 578 -78.80 -104.34 REMARK 500 PHE A 580 102.19 -164.73 REMARK 500 THR A 650 -122.52 -123.00 REMARK 500 PRO A 698 31.32 -91.56 REMARK 500 TYR A 699 65.67 68.26 REMARK 500 LYS A 761 94.05 -160.45 REMARK 500 ALA A 766 -115.24 -124.50 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 A1138 DISTANCE = 6.09 ANGSTROMS DBREF 8UVV A 356 804 PDB 8UVV 8UVV 356 804 SEQRES 1 A 449 MET ASP ASP VAL TYR LYS THR GLN PRO VAL GLU LEU PHE SEQRES 2 A 449 TYR PRO GLY TYR LEU GLU SER ARG GLY TYR ARG ILE PRO SEQRES 3 A 449 ALA LEU GLU THR THR LYS LYS GLY THR VAL LEU ALA SER SEQRES 4 A 449 ILE ASP VAL ARG ASN ASN GLY ASP HIS ASP ALA PRO ASN SEQRES 5 A 449 ASN ASN ILE ASP VAL GLY ILE ARG ARG LYS GLU VAL ASN SEQRES 6 A 449 GLY GLU TRP GLU GLU GLY LYS VAL ILE LEU ASP TYR PRO SEQRES 7 A 449 GLY LYS SER ALA ALA ILE ASP THR SER LEU MET SER ALA SEQRES 8 A 449 THR ILE GLU GLU ASN GLY ILE GLU LYS GLU ARG ILE PHE SEQRES 9 A 449 LEU ILE VAL THR HIS PHE PRO GLU GLY TYR GLY PHE PRO SEQRES 10 A 449 ASN THR GLU GLY GLY SER GLY TYR LYS GLU ILE ASP GLY SEQRES 11 A 449 LYS TYR TYR PHE ILE LEU LYS ASP ALA GLN ASN ASN GLU SEQRES 12 A 449 TYR THR VAL ARG GLU ASP GLY ILE VAL TYR ASN SER GLU SEQRES 13 A 449 GLY ASN GLU THR ASP TYR VAL MET LYS ASN ASP LYS THR SEQRES 14 A 449 LEU ILE GLN ASN GLY GLU GLU VAL GLY ASN ALA LEU LEU SEQRES 15 A 449 SER ASN SER PRO LEU LYS ALA VAL GLY THR ALA HIS ILE SEQRES 16 A 449 GLU MET ILE TYR SER ASP ASP ASP GLY ASN THR TRP SER SEQRES 17 A 449 GLU PRO GLU ASP LEU ASN PRO GLY LEU LYS LYS GLU TRP SEQRES 18 A 449 MET LYS PHE PHE GLY THR ALA PRO GLY LYS GLY ILE GLN SEQRES 19 A 449 ILE LYS ASN GLY GLU HIS LYS GLY ARG LEU VAL PHE PRO SEQRES 20 A 449 ILE TYR TYR THR ASN GLN ASN ASN PHE GLN SER SER ALA SEQRES 21 A 449 VAL ILE TYR SER ASP ASP PHE GLY GLU THR TRP LYS LEU SEQRES 22 A 449 GLY GLU SER PRO ILE ASP THR ALA SER VAL SER SER GLU SEQRES 23 A 449 THR VAL SER SER GLY THR GLN LEU THR GLU CYS GLN VAL SEQRES 24 A 449 VAL GLU MET PRO ASN GLY GLN LEU LYS LEU PHE MET ARG SEQRES 25 A 449 ASN THR GLY SER TYR THR ARG ILE ALA THR SER PHE ASP SEQRES 26 A 449 GLY GLY ALA THR TRP HIS ASP GLU VAL PRO GLU ASP THR SEQRES 27 A 449 SER LEU ARG GLU PRO TYR CYS GLN LEU SER VAL ILE ASN SEQRES 28 A 449 TYR SER GLY LYS ILE ASN GLY LYS ASP ALA ILE ILE PHE SEQRES 29 A 449 SER ASN PRO ASP ALA SER SER ARG VAL ASN GLY SER VAL SEQRES 30 A 449 LYS VAL GLY LEU ILE ASN GLU ASN GLY THR TYR ASP ASN SEQRES 31 A 449 GLY GLU PRO ARG TYR GLU PHE ASP TRP ILE TYR ASN LYS SEQRES 32 A 449 THR VAL LYS PRO GLY SER PHE ALA TYR SER CYS LEU THR SEQRES 33 A 449 GLU LEU PRO ASP GLY ASN LEU GLY LEU PHE TYR GLU GLY SEQRES 34 A 449 GLU GLY ALA GLY ARG MET ALA TYR THR GLU PHE ASP LEU SEQRES 35 A 449 ASN TYR LEU LYS PHE ASN ALA HET CL A 901 1 HET CL A 902 1 HET SIA A 903 21 HETNAM CL CHLORIDE ION HETNAM SIA N-ACETYL-ALPHA-NEURAMINIC ACID HETSYN SIA N-ACETYLNEURAMINIC ACID; SIALIC ACID; ALPHA-SIALIC HETSYN 2 SIA ACID; O-SIALIC ACID FORMUL 2 CL 2(CL 1-) FORMUL 4 SIA C11 H19 N O9 FORMUL 5 HOH *138(H2 O) HELIX 1 AA1 GLY A 371 SER A 375 5 5 HELIX 2 AA2 ASP A 796 PHE A 802 1 7 SHEET 1 AA1 4 VAL A 365 PHE A 368 0 SHEET 2 AA1 4 MET A 790 PHE A 795 -1 O MET A 790 N PHE A 368 SHEET 3 AA1 4 LEU A 778 GLU A 783 -1 N LEU A 778 O PHE A 795 SHEET 4 AA1 4 SER A 768 GLU A 772 -1 N THR A 771 O GLY A 779 SHEET 1 AA2 4 GLY A 377 THR A 385 0 SHEET 2 AA2 4 VAL A 391 ARG A 398 -1 O LEU A 392 N GLU A 384 SHEET 3 AA2 4 ILE A 410 LYS A 417 -1 O ASP A 411 N VAL A 397 SHEET 4 AA2 4 LYS A 427 LEU A 430 -1 O LEU A 430 N VAL A 412 SHEET 1 AA3 5 GLU A 566 ASP A 567 0 SHEET 2 AA3 5 HIS A 549 SER A 555 -1 N MET A 552 O GLU A 566 SHEET 3 AA3 5 LYS A 455 PHE A 465 -1 N VAL A 462 O GLU A 551 SHEET 4 AA3 5 ALA A 437 ILE A 448 -1 N ALA A 446 O ARG A 457 SHEET 5 AA3 5 GLY A 585 LYS A 586 1 O GLY A 585 N THR A 441 SHEET 1 AA4 7 TYR A 480 ILE A 483 0 SHEET 2 AA4 7 LYS A 486 LYS A 492 -1 O TYR A 488 N LYS A 481 SHEET 3 AA4 7 GLU A 498 VAL A 501 -1 O TYR A 499 N LEU A 491 SHEET 4 AA4 7 ILE A 506 TYR A 508 -1 O TYR A 508 N THR A 500 SHEET 5 AA4 7 GLU A 514 MET A 519 -1 O THR A 515 N VAL A 507 SHEET 6 AA4 7 THR A 524 GLN A 527 -1 O ILE A 526 N VAL A 518 SHEET 7 AA4 7 GLU A 530 ASN A 534 -1 O GLY A 533 N LEU A 525 SHEET 1 AA5 3 TYR A 480 ILE A 483 0 SHEET 2 AA5 3 LYS A 486 LYS A 492 -1 O TYR A 488 N LYS A 481 SHEET 3 AA5 3 LYS A 543 ALA A 544 -1 O LYS A 543 N LYS A 492 SHEET 1 AA6 3 PHE A 580 THR A 582 0 SHEET 2 AA6 3 LEU A 599 THR A 606 -1 O TYR A 604 N GLY A 581 SHEET 3 AA6 3 ILE A 588 GLN A 589 -1 N ILE A 588 O VAL A 600 SHEET 1 AA7 4 PHE A 580 THR A 582 0 SHEET 2 AA7 4 LEU A 599 THR A 606 -1 O TYR A 604 N GLY A 581 SHEET 3 AA7 4 GLN A 612 SER A 619 -1 O ALA A 615 N ILE A 603 SHEET 4 AA7 4 LYS A 627 LEU A 628 -1 O LYS A 627 N TYR A 618 SHEET 1 AA8 4 LEU A 649 GLU A 656 0 SHEET 2 AA8 4 LEU A 662 ASN A 668 -1 O ARG A 667 N GLU A 651 SHEET 3 AA8 4 TYR A 672 SER A 678 -1 O ARG A 674 N MET A 666 SHEET 4 AA8 4 GLU A 691 ARG A 696 -1 O LEU A 695 N THR A 673 SHEET 1 AA9 4 SER A 703 ILE A 711 0 SHEET 2 AA9 4 LYS A 714 PRO A 722 -1 O LYS A 714 N ILE A 711 SHEET 3 AA9 4 VAL A 728 THR A 742 -1 O LYS A 733 N PHE A 719 SHEET 4 AA9 4 PRO A 748 SER A 764 -1 O ASP A 753 N LEU A 736 CISPEP 1 ALA A 405 PRO A 406 0 7.05 CRYST1 171.134 171.134 92.843 90.00 90.00 120.00 P 64 2 2 12 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 0.005843 0.003374 0.000000 0.00000 SCALE2 0.000000 0.006747 0.000000 0.00000 SCALE3 0.000000 0.000000 0.010771 0.00000