HEADER TRANSPORT PROTEIN 26-MAR-10 2XA5 TITLE STRUCTURE OF SUBSTRATE BINDING PROTEIN SIAP (A11N) IN COMPLEX WITH TITLE 2 NEU5AC COMPND MOL_ID: 1; COMPND 2 MOLECULE: SIALIC ACID-BINDING PERIPLASMIC PROTEIN SIAP; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: N-ACETYLNEURAMINIC-BINDING PROTEIN, NEU5AC-BINDING PROTEIN, COMPND 5 EXTRACYTOPLASMIC SOLUTE RECEPTOR PROTEIN SIAP; COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES; COMPND 8 OTHER_DETAILS: NEU5AC SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HAEMOPHILUS INFLUENZAE; SOURCE 3 ORGANISM_TAXID: 727; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 6 EXPRESSION_SYSTEM_STRAIN: BL21(DE3) PLYSS PAH16; SOURCE 7 EXPRESSION_SYSTEM_PLASMID: PET21B KEYWDS SUGAR BINDING PROTEIN, NEU5AC, SBP, ESR, PERIPLASMIC BINDING PROTEIN, KEYWDS 2 TRAP, TRANSPORT PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR M.FISCHER,R.E.HUBBARD REVDAT 6 20-DEC-23 2XA5 1 HETSYN REVDAT 5 29-JUL-20 2XA5 1 COMPND REMARK HETNAM SITE REVDAT 4 25-SEP-19 2XA5 1 JRNL REVDAT 3 06-MAR-19 2XA5 1 REMARK REVDAT 2 01-APR-15 2XA5 1 REMARK VERSN REVDAT 1 06-APR-11 2XA5 0 JRNL AUTH J.F.DARBY,A.P.HOPKINS,S.SHIMIZU,S.M.ROBERTS,J.A.BRANNIGAN, JRNL AUTH 2 J.P.TURKENBURG,G.H.THOMAS,R.E.HUBBARD,M.FISCHER JRNL TITL WATER NETWORKS CAN DETERMINE THE AFFINITY OF LIGAND BINDING JRNL TITL 2 TO PROTEINS. JRNL REF J.AM.CHEM.SOC. 2019 JRNL REFN ESSN 1520-5126 JRNL PMID 31518131 JRNL DOI 10.1021/JACS.9B06275 REMARK 2 REMARK 2 RESOLUTION. 1.09 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.5.0109 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) : 1.09 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 32.23 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 99.5 REMARK 3 NUMBER OF REFLECTIONS : 122059 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) : 0.119 REMARK 3 R VALUE (WORKING SET) : 0.118 REMARK 3 FREE R VALUE : 0.144 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 6500 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) : 1.09 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.12 REMARK 3 REFLECTION IN BIN (WORKING SET) : 8878 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 98.90 REMARK 3 BIN R VALUE (WORKING SET) : 0.1970 REMARK 3 BIN FREE R VALUE SET COUNT : 494 REMARK 3 BIN FREE R VALUE : 0.2340 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2442 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 21 REMARK 3 SOLVENT ATOMS : 584 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 11.08 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -0.06000 REMARK 3 B22 (A**2) : -0.44000 REMARK 3 B33 (A**2) : 0.50000 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): 0.025 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.026 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.016 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 0.732 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.982 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.976 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 2771 ; 0.022 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): 1892 ; 0.006 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 3793 ; 1.933 ; 1.979 REMARK 3 BOND ANGLES OTHERS (DEGREES): 4695 ; 1.286 ; 3.001 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 378 ; 5.596 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 130 ;38.751 ;26.077 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 523 ;13.481 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 6 ;11.455 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 418 ; 0.126 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 3170 ; 0.011 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): 530 ; 0.004 ; 0.020 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): 1689 ; 2.149 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): 671 ; 0.954 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 2755 ; 3.194 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 1082 ; 4.404 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 1014 ; 6.217 ; 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): 4663 ; 1.561 ; 3.000 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. U VALUES REFINED INDIVIDUALLY REMARK 4 REMARK 4 2XA5 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 26-MAR-10. REMARK 100 THE DEPOSITION ID IS D_1290043428. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 27-JUL-09 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ESRF REMARK 200 BEAMLINE : ID14-4 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9765 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 210 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 128703 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.090 REMARK 200 RESOLUTION RANGE LOW (A) : 74.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 3.700 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.4 REMARK 200 DATA REDUNDANCY : 5.500 REMARK 200 R MERGE (I) : 0.06000 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 13.2000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.09 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.15 REMARK 200 COMPLETENESS FOR SHELL (%) : 98.9 REMARK 200 DATA REDUNDANCY IN SHELL : 5.10 REMARK 200 R MERGE FOR SHELL (I) : 0.34000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 3.800 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: REFMAC REMARK 200 STARTING MODEL: PDB ENTRY 2V4C REMARK 200 REMARK 200 REMARK: NONE REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 45.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.20 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 30 MG/ML SIAP (IN 20 MM HEPES, 10 MM REMARK 280 NACL AND NEU5AC, PH 8.0) AND RESERVOIR SOLUTION (100MM MES PH REMARK 280 6.0, 28.5% PEG 6K, 50MM SODIUM FLUORIDE); 2:1 RATIO RESPECTIVELY; REMARK 280 TEMPERATURE 277K, PH 7.0 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 23.90900 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 43.62700 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 37.35000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 43.62700 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 23.90900 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 37.35000 REMARK 290 SMTRY3 4 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 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 400 REMARK 400 COMPOUND REMARK 400 ENGINEERED RESIDUE IN CHAIN A, ALA 34 TO ASN 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 HIS A 311 REMARK 465 HIS A 312 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 HIS A 310 CA C O CB CG ND1 CD2 REMARK 470 HIS A 310 CE1 NE2 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 PHE A 81 CD1 PHE A 81 CE1 0.188 REMARK 500 PHE A 81 CZ PHE A 81 CE2 -0.172 REMARK 500 PHE A 102 CD1 PHE A 102 CE1 0.124 REMARK 500 TYR A 157 CD1 TYR A 157 CE1 0.096 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 58 CB - CG - OD1 ANGL. DEV. = 5.5 DEGREES REMARK 500 PHE A 81 CG - CD2 - CE2 ANGL. DEV. = 7.8 DEGREES REMARK 500 LYS A 104 CD - CE - NZ ANGL. DEV. = -14.5 DEGREES REMARK 500 MET A 110 CG - SD - CE ANGL. DEV. = -11.0 DEGREES REMARK 500 LYS A 196 CD - CE - NZ ANGL. DEV. = 13.9 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 TYR A 85 -0.45 77.08 REMARK 500 HIS A 309 -40.43 -139.60 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 A2021 DISTANCE = 6.03 ANGSTROMS REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2WYK RELATED DB: PDB REMARK 900 SIAP IN COMPLEX WITH NEU5GC REMARK 900 RELATED ID: 2CEY RELATED DB: PDB REMARK 900 APO STRUCTURE OF SIAP REMARK 900 RELATED ID: 2WX9 RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF THE SIALIC ACID BINDING PERIPLASMIC PROTEIN REMARK 900 SIAP REMARK 900 RELATED ID: 2CEX RELATED DB: PDB REMARK 900 STRUCTURE OF A SIALIC ACID BINDING PROTEIN (SIAP) IN THE PRESENCE REMARK 900 OF THE SIALIC ACID ACID ANALOGUE NEU5AC2EN REMARK 900 RELATED ID: 2WYP RELATED DB: PDB REMARK 900 RELATED ID: 2V4C RELATED DB: PDB REMARK 900 STRUCTURE OF SIALIC ACID BINDING PROTEIN (SIAP) IN THE PRESENCE OF REMARK 900 KDN REMARK 900 RELATED ID: 3B50 RELATED DB: PDB REMARK 900 STRUCTURE OF H. INFLUENZAE SIALIC ACID BINDING PROTEIN BOUND TO REMARK 900 NEU5AC. DBREF 2XA5 A 1 306 UNP P44542 SIAP_HAEIN 24 329 SEQADV 2XA5 HIS A 307 UNP P44542 EXPRESSION TAG SEQADV 2XA5 HIS A 308 UNP P44542 EXPRESSION TAG SEQADV 2XA5 HIS A 309 UNP P44542 EXPRESSION TAG SEQADV 2XA5 HIS A 310 UNP P44542 EXPRESSION TAG SEQADV 2XA5 HIS A 311 UNP P44542 EXPRESSION TAG SEQADV 2XA5 HIS A 312 UNP P44542 EXPRESSION TAG SEQADV 2XA5 ASN A 11 UNP P44542 ALA 34 ENGINEERED MUTATION SEQRES 1 A 312 ALA ASP TYR ASP LEU LYS PHE GLY MET ASN ASN GLY THR SEQRES 2 A 312 SER SER ASN GLU TYR LYS ALA ALA GLU MET PHE ALA LYS SEQRES 3 A 312 GLU VAL LYS GLU LYS SER GLN GLY LYS ILE GLU ILE SER SEQRES 4 A 312 LEU TYR PRO SER SER GLN LEU GLY ASP ASP ARG ALA MET SEQRES 5 A 312 LEU LYS GLN LEU LYS ASP GLY SER LEU ASP PHE THR PHE SEQRES 6 A 312 ALA GLU SER ALA ARG PHE GLN LEU PHE TYR PRO GLU ALA SEQRES 7 A 312 ALA VAL PHE ALA LEU PRO TYR VAL ILE SER ASN TYR ASN SEQRES 8 A 312 VAL ALA GLN LYS ALA LEU PHE ASP THR GLU PHE GLY LYS SEQRES 9 A 312 ASP LEU ILE LYS LYS MET ASP LYS ASP LEU GLY VAL THR SEQRES 10 A 312 LEU LEU SER GLN ALA TYR ASN GLY THR ARG GLN THR THR SEQRES 11 A 312 SER ASN ARG ALA ILE ASN SER ILE ALA ASP MET LYS GLY SEQRES 12 A 312 LEU LYS LEU ARG VAL PRO ASN ALA ALA THR ASN LEU ALA SEQRES 13 A 312 TYR ALA LYS TYR VAL GLY ALA SER PRO THR PRO MET ALA SEQRES 14 A 312 PHE SER GLU VAL TYR LEU ALA LEU GLN THR ASN ALA VAL SEQRES 15 A 312 ASP GLY GLN GLU ASN PRO LEU ALA ALA VAL GLN ALA GLN SEQRES 16 A 312 LYS PHE TYR GLU VAL GLN LYS PHE LEU ALA MET THR ASN SEQRES 17 A 312 HIS ILE LEU ASN ASP GLN LEU TYR LEU VAL SER ASN GLU SEQRES 18 A 312 THR TYR LYS GLU LEU PRO GLU ASP LEU GLN LYS VAL VAL SEQRES 19 A 312 LYS ASP ALA ALA GLU ASN ALA ALA LYS TYR HIS THR LYS SEQRES 20 A 312 LEU PHE VAL ASP GLY GLU LYS ASP LEU VAL THR PHE PHE SEQRES 21 A 312 GLU LYS GLN GLY VAL LYS ILE THR HIS PRO ASP LEU VAL SEQRES 22 A 312 PRO PHE LYS GLU SER MET LYS PRO TYR TYR ALA GLU PHE SEQRES 23 A 312 VAL LYS GLN THR GLY GLN LYS GLY GLU SER ALA LEU LYS SEQRES 24 A 312 GLN ILE GLU ALA ILE ASN PRO HIS HIS HIS HIS HIS HIS HET SLB A1310 21 HETNAM SLB N-ACETYL-BETA-NEURAMINIC ACID HETSYN SLB N-ACETYLNEURAMINIC ACID; SIALIC ACID; O-SIALIC ACID; 5- HETSYN 2 SLB N-ACETYL-BETA-D-NEURAMINIC ACID; BETA-SIALIC ACID FORMUL 2 SLB C11 H19 N O9 FORMUL 3 HOH *584(H2 O) HELIX 1 1 SER A 15 SER A 32 1 18 HELIX 2 2 ASP A 48 ASP A 58 1 11 HELIX 3 3 GLU A 67 PHE A 74 5 8 HELIX 4 4 TYR A 75 LEU A 83 5 9 HELIX 5 5 ASN A 89 ASP A 99 1 11 HELIX 6 6 THR A 100 GLY A 115 1 16 HELIX 7 7 SER A 137 LYS A 142 5 6 HELIX 8 8 ALA A 151 GLY A 162 1 12 HELIX 9 9 ALA A 169 SER A 171 5 3 HELIX 10 10 GLU A 172 THR A 179 1 8 HELIX 11 11 LEU A 189 GLN A 195 1 7 HELIX 12 12 LYS A 196 VAL A 200 5 5 HELIX 13 13 ASN A 220 LYS A 224 1 5 HELIX 14 14 PRO A 227 GLN A 263 1 37 HELIX 15 15 LEU A 272 MET A 279 1 8 HELIX 16 16 MET A 279 ALA A 303 1 25 SHEET 1 AA 7 ILE A 36 TYR A 41 0 SHEET 2 AA 7 TYR A 3 GLY A 8 1 O TYR A 3 N GLU A 37 SHEET 3 AA 7 PHE A 63 ALA A 66 1 O PHE A 63 N GLY A 8 SHEET 4 AA 7 LEU A 211 SER A 219 -1 O LEU A 215 N ALA A 66 SHEET 5 AA 7 VAL A 116 SER A 131 -1 O THR A 117 N VAL A 218 SHEET 6 AA 7 PHE A 203 ALA A 205 -1 O PHE A 203 N SER A 131 SHEET 7 AA 7 LYS A 266 THR A 268 1 O LYS A 266 N LEU A 204 SHEET 1 AB 6 ILE A 36 TYR A 41 0 SHEET 2 AB 6 TYR A 3 GLY A 8 1 O TYR A 3 N GLU A 37 SHEET 3 AB 6 PHE A 63 ALA A 66 1 O PHE A 63 N GLY A 8 SHEET 4 AB 6 LEU A 211 SER A 219 -1 O LEU A 215 N ALA A 66 SHEET 5 AB 6 VAL A 116 SER A 131 -1 O THR A 117 N VAL A 218 SHEET 6 AB 6 GLY A 184 PRO A 188 -1 O GLN A 185 N THR A 130 SHEET 1 AC 2 LYS A 145 VAL A 148 0 SHEET 2 AC 2 SER A 164 PRO A 167 1 O SER A 164 N LEU A 146 CRYST1 47.818 74.700 87.254 90.00 90.00 90.00 P 21 21 21 4 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 0.020913 0.000000 0.000000 0.00000 SCALE2 0.000000 0.013387 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011461 0.00000