HEADER TRANSPORT PROTEIN 07-DEC-21 7T3E TITLE STRUCTURE OF THE SIALIC ACID BOUND TRIPARTITE ATP-INDEPENDENT TITLE 2 PERIPLASMIC (TRAP) PERIPLASMIC COMPONENT SIAP FROM PHOTOBACTERIUM TITLE 3 PROFUNDUM COMPND MOL_ID: 1; COMPND 2 MOLECULE: TRAP-TYPE C4-DICARBOXYLATE TRANSPORT SYSTEM, PERIPLASMIC COMPND 3 COMPONENT; COMPND 4 CHAIN: A, B; COMPND 5 SYNONYM: SIAP; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: PHOTOBACTERIUM PROFUNDUM; SOURCE 3 ORGANISM_TAXID: 74109; SOURCE 4 GENE: SMB20295, PBPRA2281; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS PERIPLASMIC SBP, SIALIC ACID, TRAP TRANSPORTER, TRANSPORT PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR J.S.DAVIES,M.J.CURRIE,R.A.NORTH,R.C.J.DOBSON REVDAT 3 25-OCT-23 7T3E 1 REMARK REVDAT 2 28-JUN-23 7T3E 1 TITLE JRNL REVDAT 1 14-DEC-22 7T3E 0 JRNL AUTH J.S.DAVIES,M.J.CURRIE,R.A.NORTH,M.SCALISE,J.D.WRIGHT, JRNL AUTH 2 J.M.COPPING,D.M.REMUS,A.GULATI,D.R.MORADO,S.A.JAMIESON, JRNL AUTH 3 M.C.NEWTON-VESTY,G.S.ABEYSEKERA,S.RAMASWAMY,R.FRIEMANN, JRNL AUTH 4 S.WAKATSUKI,J.R.ALLISON,C.INDIVERI,D.DREW,P.D.MACE, JRNL AUTH 5 R.C.J.DOBSON JRNL TITL STRUCTURE AND MECHANISM OF A TRIPARTITE ATP-INDEPENDENT JRNL TITL 2 PERIPLASMIC TRAP TRANSPORTER. JRNL REF NAT COMMUN V. 14 1120 2023 JRNL REFN ESSN 2041-1723 JRNL PMID 36849793 JRNL DOI 10.1038/S41467-023-36590-1 REMARK 2 REMARK 2 RESOLUTION. 1.04 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.19.2_4158 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) : 1.04 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 43.66 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.330 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.4 REMARK 3 NUMBER OF REFLECTIONS : 316707 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.125 REMARK 3 R VALUE (WORKING SET) : 0.124 REMARK 3 FREE R VALUE : 0.139 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.990 REMARK 3 FREE R VALUE TEST SET COUNT : 30762 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 43.6600 - 3.2300 1.00 19564 1091 0.1345 0.1492 REMARK 3 2 3.2200 - 2.5600 1.00 19554 1060 0.1284 0.1400 REMARK 3 3 2.5600 - 2.2400 1.00 19512 1064 0.1075 0.1124 REMARK 3 4 2.2400 - 2.0300 1.00 19664 1009 0.0993 0.1136 REMARK 3 5 2.0300 - 1.8900 1.00 19691 996 0.0988 0.1213 REMARK 3 6 1.8900 - 1.7700 1.00 19619 976 0.0923 0.1008 REMARK 3 7 1.7700 - 1.6900 1.00 19691 1035 0.0860 0.1116 REMARK 3 8 1.6900 - 1.6100 1.00 19596 1103 0.0815 0.1103 REMARK 3 9 1.6100 - 1.5500 1.00 19560 1088 0.0829 0.1003 REMARK 3 10 1.5500 - 1.5000 1.00 19576 1017 0.0938 0.1159 REMARK 3 11 1.5000 - 1.4500 1.00 19578 1044 0.0959 0.1180 REMARK 3 12 1.4500 - 1.4100 0.99 19443 984 0.0987 0.1212 REMARK 3 13 1.4100 - 1.3700 1.00 19608 1024 0.1026 0.1240 REMARK 3 14 1.3700 - 1.3400 1.00 19567 1051 0.1062 0.1232 REMARK 3 15 1.3400 - 1.3100 1.00 19620 1002 0.1135 0.1394 REMARK 3 16 1.3100 - 1.2800 1.00 19537 1060 0.1231 0.1544 REMARK 3 17 1.2800 - 1.2500 1.00 19576 1113 0.1300 0.1402 REMARK 3 18 1.2500 - 1.2300 1.00 19661 1013 0.1415 0.1527 REMARK 3 19 1.2300 - 1.2100 1.00 19585 1000 0.1479 0.1631 REMARK 3 20 1.2100 - 1.1900 1.00 19648 1025 0.1541 0.1709 REMARK 3 21 1.1900 - 1.1700 1.00 19414 1144 0.1674 0.1812 REMARK 3 22 1.1700 - 1.1500 1.00 19724 1036 0.1705 0.1883 REMARK 3 23 1.1500 - 1.1300 0.99 19528 993 0.1815 0.1821 REMARK 3 24 1.1300 - 1.1200 0.99 19496 954 0.1953 0.1982 REMARK 3 25 1.1200 - 1.1000 1.00 19643 977 0.2049 0.2130 REMARK 3 26 1.1000 - 1.0900 1.00 19641 1008 0.2225 0.2235 REMARK 3 27 1.0900 - 1.0800 1.00 19635 963 0.2414 0.2464 REMARK 3 28 1.0800 - 1.0600 1.00 19550 1012 0.2579 0.2633 REMARK 3 29 1.0600 - 1.0500 1.00 19625 1042 0.2784 0.2946 REMARK 3 30 1.0500 - 1.0400 0.87 17086 878 0.3091 0.2953 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.11 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) : 0.093 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 13.452 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 10.24 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 14.49 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 : 0.009 5601 REMARK 3 ANGLE : 1.112 7692 REMARK 3 CHIRALITY : 0.086 836 REMARK 3 PLANARITY : 0.011 1039 REMARK 3 DIHEDRAL : 5.260 794 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 7T3E COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 08-DEC-21. REMARK 100 THE DEPOSITION ID IS D_1000261570. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 09-MAY-19 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : AUSTRALIAN SYNCHROTRON REMARK 200 BEAMLINE : MX2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.95372 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS EIGER X 16M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : AIMLESS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 316707 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.040 REMARK 200 RESOLUTION RANGE LOW (A) : 43.660 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.6 REMARK 200 DATA REDUNDANCY : 6.500 REMARK 200 R MERGE (I) : 0.07300 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 9.8000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.04 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.08 REMARK 200 COMPLETENESS FOR SHELL (%) : 93.0 REMARK 200 DATA REDUNDANCY IN SHELL : 5.70 REMARK 200 R MERGE FOR SHELL (I) : 1.15300 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 1.300 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: PDB ENTRY 2XWK REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 49.57 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.44 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 50 MG/ML PROTEIN IN 50 MM TRIS, PH REMARK 280 8.0, 150 MM SODIUM CHLORIDE, 0.002% W/V L-MNG MIXED 1:1 WITH 0.1 REMARK 280 M BIS-TRIS, PH 5.0, 2 M AMMONIUM SULFATE, VAPOR DIFFUSION, REMARK 280 SITTING DROP, TEMPERATURE 293.15K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 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 29.29800 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 64.70600 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 43.65650 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 64.70600 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 29.29800 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 43.65650 REMARK 290 SMTRY3 4 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 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 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 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 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 OD2 ASP B 18 O HOH B 401 1.80 REMARK 500 O HOH A 671 O HOH A 759 2.04 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 MET B 193 CA - CB - CG ANGL. DEV. = -11.2 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 GLU A 1 -35.79 -132.66 REMARK 500 GLN A 212 93.47 -162.63 REMARK 500 GLN B 212 92.92 -164.65 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 A 773 DISTANCE = 6.00 ANGSTROMS REMARK 525 HOH A 774 DISTANCE = 6.29 ANGSTROMS REMARK 525 HOH A 775 DISTANCE = 6.30 ANGSTROMS REMARK 525 HOH B 821 DISTANCE = 5.93 ANGSTROMS REMARK 525 HOH B 822 DISTANCE = 6.32 ANGSTROMS REMARK 525 HOH B 823 DISTANCE = 6.66 ANGSTROMS REMARK 525 HOH B 824 DISTANCE = 6.76 ANGSTROMS DBREF 7T3E A 1 299 UNP Q6LPV9 Q6LPV9_PHOPR 24 322 DBREF 7T3E B 1 299 UNP Q6LPV9 Q6LPV9_PHOPR 24 322 SEQADV 7T3E MET A 0 UNP Q6LPV9 INITIATING METHIONINE SEQADV 7T3E MET B 0 UNP Q6LPV9 INITIATING METHIONINE SEQRES 1 A 300 MET GLU THR ILE LEU LYS MET GLY LEU GLN ALA ASN VAL SEQRES 2 A 300 GLY SER VAL GLU TYR ASP SER ALA LYS ILE LEU SER ASP SEQRES 3 A 300 LYS ILE SER GLU LEU SER ASP GLY GLU MET LYS LEU LEU SEQRES 4 A 300 LEU TYR PRO GLY ALA GLN LEU GLY ASP ASP ARG ALA MET SEQRES 5 A 300 LEU GLN GLN LEU SER MET GLY ASP LEU ASP ILE THR PHE SEQRES 6 A 300 ALA GLU PHE GLY ARG MET GLY LEU TRP ILE PRO ARG ALA SEQRES 7 A 300 GLU ALA VAL MET LEU PRO TYR VAL VAL LYS ASN TYR ALA SEQRES 8 A 300 HIS ILE GLN ARG ILE PHE ASN SER LYS PHE GLY GLN GLY SEQRES 9 A 300 VAL ARG GLU GLU MET LEU THR ASN PHE ASN TRP ARG ALA SEQRES 10 A 300 LEU ASP THR TRP TYR ASN GLY THR ARG GLN THR SER SER SEQRES 11 A 300 ASN ARG PRO LEU ASN THR ILE SER ASP PHE GLU GLY LEU SEQRES 12 A 300 LYS LEU ARG VAL PRO ASN ALA LYS ALA ASN LEU ALA PHE SEQRES 13 A 300 ALA LYS TYR ALA GLY ALA SER PRO THR PRO MET VAL PHE SEQRES 14 A 300 SER GLU VAL TYR LEU ALA LEU GLN THR ASN ALA VAL ASP SEQRES 15 A 300 GLY GLN GLU ASN PRO LEU PRO THR PHE ASN THR MET LYS SEQRES 16 A 300 PHE TYR GLU VAL GLN PRO ASN LEU ALA MET THR ASN HIS SEQRES 17 A 300 ILE VAL ASN ASP GLN MET VAL LEU ILE SER GLU ASP ARG SEQRES 18 A 300 TRP GLN SER LEU SER LYS ASP GLN GLN ALA THR ILE THR SEQRES 19 A 300 GLU ALA VAL SER VAL ALA GLY LYS ARG HIS THR ASN PHE SEQRES 20 A 300 VAL ASN ASN GLN GLU LYS GLU LEU ILE THR PHE PHE LYS SEQRES 21 A 300 ALA GLU GLY VAL ASN ILE THR TYR PRO ASP LEU ALA PRO SEQRES 22 A 300 PHE ARG GLU ALA MET LEU PRO ILE TYR LYS ASP PHE ASP SEQRES 23 A 300 LYS LYS ILE GLY LYS GLN LEU VAL GLU GLU LEU SER ASP SEQRES 24 A 300 ILE SEQRES 1 B 300 MET GLU THR ILE LEU LYS MET GLY LEU GLN ALA ASN VAL SEQRES 2 B 300 GLY SER VAL GLU TYR ASP SER ALA LYS ILE LEU SER ASP SEQRES 3 B 300 LYS ILE SER GLU LEU SER ASP GLY GLU MET LYS LEU LEU SEQRES 4 B 300 LEU TYR PRO GLY ALA GLN LEU GLY ASP ASP ARG ALA MET SEQRES 5 B 300 LEU GLN GLN LEU SER MET GLY ASP LEU ASP ILE THR PHE SEQRES 6 B 300 ALA GLU PHE GLY ARG MET GLY LEU TRP ILE PRO ARG ALA SEQRES 7 B 300 GLU ALA VAL MET LEU PRO TYR VAL VAL LYS ASN TYR ALA SEQRES 8 B 300 HIS ILE GLN ARG ILE PHE ASN SER LYS PHE GLY GLN GLY SEQRES 9 B 300 VAL ARG GLU GLU MET LEU THR ASN PHE ASN TRP ARG ALA SEQRES 10 B 300 LEU ASP THR TRP TYR ASN GLY THR ARG GLN THR SER SER SEQRES 11 B 300 ASN ARG PRO LEU ASN THR ILE SER ASP PHE GLU GLY LEU SEQRES 12 B 300 LYS LEU ARG VAL PRO ASN ALA LYS ALA ASN LEU ALA PHE SEQRES 13 B 300 ALA LYS TYR ALA GLY ALA SER PRO THR PRO MET VAL PHE SEQRES 14 B 300 SER GLU VAL TYR LEU ALA LEU GLN THR ASN ALA VAL ASP SEQRES 15 B 300 GLY GLN GLU ASN PRO LEU PRO THR PHE ASN THR MET LYS SEQRES 16 B 300 PHE TYR GLU VAL GLN PRO ASN LEU ALA MET THR ASN HIS SEQRES 17 B 300 ILE VAL ASN ASP GLN MET VAL LEU ILE SER GLU ASP ARG SEQRES 18 B 300 TRP GLN SER LEU SER LYS ASP GLN GLN ALA THR ILE THR SEQRES 19 B 300 GLU ALA VAL SER VAL ALA GLY LYS ARG HIS THR ASN PHE SEQRES 20 B 300 VAL ASN ASN GLN GLU LYS GLU LEU ILE THR PHE PHE LYS SEQRES 21 B 300 ALA GLU GLY VAL ASN ILE THR TYR PRO ASP LEU ALA PRO SEQRES 22 B 300 PHE ARG GLU ALA MET LEU PRO ILE TYR LYS ASP PHE ASP SEQRES 23 B 300 LYS LYS ILE GLY LYS GLN LEU VAL GLU GLU LEU SER ASP SEQRES 24 B 300 ILE HET SLB A 301 39 HET SO4 A 302 5 HET SLB B 301 39 HET SO4 B 302 5 HETNAM SLB N-ACETYL-BETA-NEURAMINIC ACID HETNAM SO4 SULFATE ION HETSYN SLB N-ACETYLNEURAMINIC ACID; SIALIC ACID; O-SIALIC ACID; 5- HETSYN 2 SLB N-ACETYL-BETA-D-NEURAMINIC ACID; BETA-SIALIC ACID FORMUL 3 SLB 2(C11 H19 N O9) FORMUL 4 SO4 2(O4 S 2-) FORMUL 7 HOH *799(H2 O) HELIX 1 AA1 SER A 14 SER A 31 1 18 HELIX 2 AA2 ASP A 47 MET A 57 1 11 HELIX 3 AA3 GLU A 66 TRP A 73 5 8 HELIX 4 AA4 ILE A 74 LEU A 82 5 9 HELIX 5 AA5 ASN A 88 SER A 98 1 11 HELIX 6 AA6 SER A 98 ASN A 113 1 16 HELIX 7 AA7 THR A 135 GLU A 140 5 6 HELIX 8 AA8 ALA A 149 GLY A 160 1 12 HELIX 9 AA9 VAL A 167 SER A 169 5 3 HELIX 10 AB1 GLU A 170 THR A 177 1 8 HELIX 11 AB2 LEU A 187 MET A 193 1 7 HELIX 12 AB3 LYS A 194 GLN A 199 5 6 HELIX 13 AB4 GLU A 218 LEU A 224 1 7 HELIX 14 AB5 SER A 225 GLU A 261 1 37 HELIX 15 AB6 LEU A 270 MET A 277 1 8 HELIX 16 AB7 MET A 277 GLY A 289 1 13 HELIX 17 AB8 GLN A 291 ILE A 299 1 9 HELIX 18 AB9 SER B 14 SER B 31 1 18 HELIX 19 AC1 ASP B 47 MET B 57 1 11 HELIX 20 AC2 GLU B 66 TRP B 73 5 8 HELIX 21 AC3 ILE B 74 LEU B 82 5 9 HELIX 22 AC4 ASN B 88 SER B 98 1 11 HELIX 23 AC5 SER B 98 ASN B 113 1 16 HELIX 24 AC6 THR B 135 GLU B 140 5 6 HELIX 25 AC7 ALA B 149 GLY B 160 1 12 HELIX 26 AC8 VAL B 167 SER B 169 5 3 HELIX 27 AC9 GLU B 170 THR B 177 1 8 HELIX 28 AD1 PRO B 186 MET B 193 1 8 HELIX 29 AD2 LYS B 194 VAL B 198 5 5 HELIX 30 AD3 GLU B 218 LEU B 224 1 7 HELIX 31 AD4 SER B 225 GLU B 261 1 37 HELIX 32 AD5 LEU B 270 MET B 277 1 8 HELIX 33 AD6 MET B 277 GLY B 289 1 13 HELIX 34 AD7 GLN B 291 ILE B 299 1 9 SHEET 1 AA1 6 MET A 35 TYR A 40 0 SHEET 2 AA1 6 THR A 2 GLY A 7 1 N LEU A 4 O LYS A 36 SHEET 3 AA1 6 ILE A 62 ALA A 65 1 O ILE A 62 N GLY A 7 SHEET 4 AA1 6 VAL A 209 SER A 217 -1 O LEU A 215 N THR A 63 SHEET 5 AA1 6 TRP A 114 SER A 129 -1 N LEU A 117 O VAL A 214 SHEET 6 AA1 6 GLY A 182 PRO A 186 -1 O GLN A 183 N SER A 128 SHEET 1 AA2 7 MET A 35 TYR A 40 0 SHEET 2 AA2 7 THR A 2 GLY A 7 1 N LEU A 4 O LYS A 36 SHEET 3 AA2 7 ILE A 62 ALA A 65 1 O ILE A 62 N GLY A 7 SHEET 4 AA2 7 VAL A 209 SER A 217 -1 O LEU A 215 N THR A 63 SHEET 5 AA2 7 TRP A 114 SER A 129 -1 N LEU A 117 O VAL A 214 SHEET 6 AA2 7 ASN A 201 ALA A 203 -1 O ALA A 203 N THR A 127 SHEET 7 AA2 7 ASN A 264 THR A 266 1 O THR A 266 N LEU A 202 SHEET 1 AA3 2 LYS A 143 VAL A 146 0 SHEET 2 AA3 2 SER A 162 PRO A 165 1 O THR A 164 N LEU A 144 SHEET 1 AA4 5 MET B 35 TYR B 40 0 SHEET 2 AA4 5 THR B 2 GLY B 7 1 N LEU B 4 O LYS B 36 SHEET 3 AA4 5 ILE B 62 ALA B 65 1 O ILE B 62 N LYS B 5 SHEET 4 AA4 5 VAL B 209 SER B 217 -1 O LEU B 215 N THR B 63 SHEET 5 AA4 5 TRP B 114 THR B 124 -1 N LEU B 117 O VAL B 214 SHEET 1 AA5 4 GLY B 182 ASN B 185 0 SHEET 2 AA5 4 GLN B 126 SER B 129 -1 N SER B 128 O GLN B 183 SHEET 3 AA5 4 ASN B 201 ALA B 203 -1 O ALA B 203 N THR B 127 SHEET 4 AA5 4 ASN B 264 THR B 266 1 O THR B 266 N LEU B 202 SHEET 1 AA6 2 LYS B 143 VAL B 146 0 SHEET 2 AA6 2 SER B 162 PRO B 165 1 O THR B 164 N LEU B 144 CRYST1 58.596 87.313 129.412 90.00 90.00 90.00 P 21 21 21 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 0.017066 0.000000 0.000000 0.00000 SCALE2 0.000000 0.011453 0.000000 0.00000 SCALE3 0.000000 0.000000 0.007727 0.00000