HEADER OXIDOREDUCTASE 09-FEB-03 1NX6 TITLE CRYSTAL STRUCTURE OF ASPARTATE SEMIALDEHYDE DEHYDROGENASE FROM TITLE 2 HAEMOPHILUS INFLUENZAE AS A TETRAHEDRAL HEMITHIOCETAL REACTION TITLE 3 INTERMEDIATE WITH PHOSPHATE AT 2.15 A COMPND MOL_ID: 1; COMPND 2 MOLECULE: ASPARTATE-SEMIALDEHYDE DEHYDROGENASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: ASA DEHYDROGENASE, ASADH; COMPND 5 EC: 1.2.1.11; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HAEMOPHILUS INFLUENZAE; SOURCE 3 ORGANISM_TAXID: 727; SOURCE 4 GENE: ASD; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 6 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21DE3; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET41A KEYWDS ASPARTATE-SEMIALDEHYDE DEHYDROGENASE, ASPARTATE SEMIALDEHYDE, KEYWDS 2 HAEMOPHILUS INFLUENZAE, TETRAHEDAL INTERMEDIATE, HEMITHIOCETAL, KEYWDS 3 PHOSPHATE, OXIDOREDUCTASE EXPDTA X-RAY DIFFRACTION AUTHOR J.BLANCO,R.A.MOORE,R.E.VIOLA REVDAT 4 16-AUG-23 1NX6 1 REMARK SEQADV LINK REVDAT 3 13-JUL-11 1NX6 1 VERSN REVDAT 2 24-FEB-09 1NX6 1 VERSN REVDAT 1 04-NOV-03 1NX6 0 JRNL AUTH J.BLANCO,R.A.MOORE,R.E.VIOLA JRNL TITL CAPTURE OF AN INTERMEDIATE IN THE CATALYTIC CYCLE OF JRNL TITL 2 L-ASPARTATE-BETA-SEMIALDEHYDE DEHYDROGENASE JRNL REF PROC.NATL.ACAD.SCI.USA V. 100 12613 2003 JRNL REFN ISSN 0027-8424 JRNL PMID 14559965 JRNL DOI 10.1073/PNAS.1634958100 REMARK 2 REMARK 2 RESOLUTION. 2.15 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.0 REMARK 3 AUTHORS : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE- REMARK 3 : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU, REMARK 3 : READ,RICE,SIMONSON,WARREN REMARK 3 REMARK 3 REFINEMENT TARGET : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.15 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 40.50 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 280448.710 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 97.0 REMARK 3 NUMBER OF REFLECTIONS : 19724 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 SET) : 0.228 REMARK 3 FREE R VALUE : 0.284 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 9.900 REMARK 3 FREE R VALUE TEST SET COUNT : 1945 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.006 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 6 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.15 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.28 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 93.30 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 2780 REMARK 3 BIN R VALUE (WORKING SET) : 0.2830 REMARK 3 BIN FREE R VALUE : 0.3420 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 10.40 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 322 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.019 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2761 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 10 REMARK 3 SOLVENT ATOMS : 144 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 21.40 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 34.40 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -12.52000 REMARK 3 B22 (A**2) : 4.29000 REMARK 3 B33 (A**2) : 8.23000 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) : 0.29 REMARK 3 ESD FROM SIGMAA (A) : 0.25 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.37 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.33 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.012 REMARK 3 BOND ANGLES (DEGREES) : 1.600 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 23.80 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.710 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.31 REMARK 3 BSOL : 11.39 REMARK 3 REMARK 3 NCS MODEL : NULL REMARK 3 REMARK 3 NCS RESTRAINTS. RMS SIGMA/WEIGHT REMARK 3 GROUP 1 POSITIONAL (A) : NULL ; NULL REMARK 3 GROUP 1 B-FACTOR (A**2) : NULL ; NULL REMARK 3 REMARK 3 PARAMETER FILE 1 : PROTEIN_NEW.PARAM REMARK 3 PARAMETER FILE 2 : WATER.PARAM REMARK 3 PARAMETER FILE 3 : PI.PARAM REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN_NEW.TOP REMARK 3 TOPOLOGY FILE 2 : WATER.TOP REMARK 3 TOPOLOGY FILE 3 : PI.TOP REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: BULK SOLVENT MODEL USED REMARK 4 REMARK 4 1NX6 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 04-MAR-03. REMARK 100 THE DEPOSITION ID IS D_1000018307. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 01-JUN-02 REMARK 200 TEMPERATURE (KELVIN) : 298 REMARK 200 PH : 8.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 14-BM-C REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.000 REMARK 200 MONOCHROMATOR : GRAPHITE REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 19724 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.150 REMARK 200 RESOLUTION RANGE LOW (A) : 100.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 97.1 REMARK 200 DATA REDUNDANCY : 7.060 REMARK 200 R MERGE (I) : 0.06800 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 27.8000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.15 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.23 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.9 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.35300 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 5.600 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: PDB ENTRY 1NWH REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 43.78 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.21 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 20-24% PEG 3350, 0.2 M AMMONIUM REMARK 280 ACETATE, 0.1 M TRIS-HCL, PH 8.5, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z REMARK 290 3555 -X+1/2,Y+1/2,-Z 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 0.00000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 56.87400 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 27.42650 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 56.87400 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 27.42650 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 300 REMARK: THE BIOLOGICAL ASSEMBLY IS A MONOMER 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 7790 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 26730 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -77.0 KCAL/MOL 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 BIOMT1 2 -1.000000 0.000000 0.000000 -113.74800 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 54.85300 REMARK 350 BIOMT3 2 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 GLY A 41 REMARK 465 GLN A 42 REMARK 465 LYS A 43 REMARK 465 ALA A 44 REMARK 465 PRO A 45 REMARK 465 VAL A 46 REMARK 465 PHE A 47 REMARK 465 GLY A 48 REMARK 465 GLY A 49 REMARK 465 LYS A 50 REMARK 465 ASP A 51 REMARK 465 ALA A 52 REMARK 465 GLY A 53 REMARK 465 ASP A 54 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 ALA A 101 -48.91 -27.17 REMARK 500 LEU A 112 71.46 -176.04 REMARK 500 VAL A 187 26.83 -141.55 REMARK 500 PRO A 215 98.04 -60.95 REMARK 500 SER A 226 -155.18 -152.92 REMARK 500 PRO A 229 39.25 -80.89 REMARK 500 ASP A 232 173.00 71.89 REMARK 500 LEU A 257 58.06 -95.53 REMARK 500 VAL A 330 78.88 -119.53 REMARK 500 PRO A 342 1.66 -66.74 REMARK 500 LEU A 355 -89.71 -92.13 REMARK 500 ALA A 358 -76.71 -155.91 REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 A 372 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 A 373 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1MB4 RELATED DB: PDB REMARK 900 ASPARTATE SEMIALDEHYDE DEHYDROGENASE FROM VIBRIO CHOLERAE WITH NADP REMARK 900 AND S-METHYL-L-CYSTEINE SULFOXIDE REMARK 900 RELATED ID: 1MC4 RELATED DB: PDB REMARK 900 ASPARTATE SEMIALDEHYDE FROM VIBRIO CHOLERAE REMARK 900 RELATED ID: 1GL3 RELATED DB: PDB REMARK 900 ASPARTATE BETA-SEMIALDEHYDE DEHYDROGENASE IN COMPLEX WITH NADP AND REMARK 900 SUBSTRATE ANALOGUE S-METHYL CYSTEINE SULFOXIDE REMARK 900 RELATED ID: 1BRM RELATED DB: PDB REMARK 900 ASPARTATE BETA-SEMIALDEHYDE DEHYDROGENASE FROM ESCHERICHIA COLI REMARK 900 RELATED ID: 1NWH RELATED DB: PDB REMARK 900 ASPARTATE-SEMIALDEHYDE DEHYDROGENASE WITHOUT PHOSPHATE DBREF 1NX6 A 1 371 UNP P44801 DHAS_HAEIN 1 371 SEQADV 1NX6 HTI A 136 UNP P44801 CYS 136 MODIFIED RESIDUE SEQRES 1 A 371 MET LYS ASN VAL GLY PHE ILE GLY TRP ARG GLY MET VAL SEQRES 2 A 371 GLY SER VAL LEU MET ASP ARG MET SER GLN GLU ASN ASP SEQRES 3 A 371 PHE GLU ASN LEU ASN PRO VAL PHE PHE THR THR SER GLN SEQRES 4 A 371 ALA GLY GLN LYS ALA PRO VAL PHE GLY GLY LYS ASP ALA SEQRES 5 A 371 GLY ASP LEU LYS SER ALA PHE ASP ILE GLU GLU LEU LYS SEQRES 6 A 371 LYS LEU ASP ILE ILE VAL THR CYS GLN GLY GLY ASP TYR SEQRES 7 A 371 THR ASN GLU VAL TYR PRO LYS LEU LYS ALA THR GLY TRP SEQRES 8 A 371 ASP GLY TYR TRP VAL ASP ALA ALA SER ALA LEU ARG MET SEQRES 9 A 371 LYS ASP ASP ALA ILE ILE VAL LEU ASP PRO VAL ASN GLN SEQRES 10 A 371 HIS VAL ILE SER GLU GLY LEU LYS LYS GLY ILE LYS THR SEQRES 11 A 371 PHE VAL GLY GLY ASN HTI THR VAL SER LEU MET LEU MET SEQRES 12 A 371 ALA ILE GLY GLY LEU PHE GLU LYS ASP LEU VAL GLU TRP SEQRES 13 A 371 ILE SER VAL ALA THR TYR GLN ALA ALA SER GLY ALA GLY SEQRES 14 A 371 ALA LYS ASN MET ARG GLU LEU LEU SER GLN MET GLY LEU SEQRES 15 A 371 LEU GLU GLN ALA VAL SER SER GLU LEU LYS ASP PRO ALA SEQRES 16 A 371 SER SER ILE LEU ASP ILE GLU ARG LYS VAL THR ALA LYS SEQRES 17 A 371 MET ARG ALA ASP ASN PHE PRO THR ASP ASN PHE GLY ALA SEQRES 18 A 371 ALA LEU GLY GLY SER LEU ILE PRO TRP ILE ASP LYS LEU SEQRES 19 A 371 LEU PRO GLU THR GLY GLN THR LYS GLU GLU TRP LYS GLY SEQRES 20 A 371 TYR ALA GLU THR ASN LYS ILE LEU GLY LEU SER ASP ASN SEQRES 21 A 371 PRO ILE PRO VAL ASP GLY LEU CYS VAL ARG ILE GLY ALA SEQRES 22 A 371 LEU ARG CYS HIS SER GLN ALA PHE THR ILE LYS LEU LYS SEQRES 23 A 371 LYS ASP LEU PRO LEU GLU GLU ILE GLU GLN ILE ILE ALA SEQRES 24 A 371 SER HIS ASN GLU TRP VAL LYS VAL ILE PRO ASN ASP LYS SEQRES 25 A 371 GLU ILE THR LEU ARG GLU LEU THR PRO ALA LYS VAL THR SEQRES 26 A 371 GLY THR LEU SER VAL PRO VAL GLY ARG LEU ARG LYS LEU SEQRES 27 A 371 ALA MET GLY PRO GLU TYR LEU ALA ALA PHE THR VAL GLY SEQRES 28 A 371 ASP GLN LEU LEU TRP GLY ALA ALA GLU PRO VAL ARG ARG SEQRES 29 A 371 ILE LEU LYS GLN LEU VAL ALA MODRES 1NX6 HTI A 136 CYS HET HTI A 136 14 HET PO4 A 372 5 HET PO4 A 373 5 HETNAM HTI (4S)-4-{[(2S)-2-AMINO-3-OXOPROPYL]SULFANYL}-L- HETNAM 2 HTI HOMOSERINE HETNAM PO4 PHOSPHATE ION FORMUL 1 HTI C7 H14 N2 O5 S FORMUL 2 PO4 2(O4 P 3-) FORMUL 4 HOH *144(H2 O) HELIX 1 1 GLY A 11 GLU A 24 1 14 HELIX 2 2 ASN A 25 LEU A 30 5 6 HELIX 3 3 ASP A 60 LYS A 66 1 7 HELIX 4 4 GLY A 75 ALA A 88 1 14 HELIX 5 5 LEU A 112 GLY A 127 1 16 HELIX 6 6 ASN A 135 LYS A 151 1 17 HELIX 7 7 ALA A 164 ALA A 168 5 5 HELIX 8 8 GLY A 169 ALA A 186 1 18 HELIX 9 9 VAL A 187 ASP A 193 1 7 HELIX 10 10 SER A 197 ALA A 211 1 15 HELIX 11 11 THR A 241 GLY A 256 1 16 HELIX 12 12 PRO A 290 HIS A 301 1 12 HELIX 13 13 ASP A 311 LEU A 319 1 9 HELIX 14 14 THR A 320 THR A 325 1 6 HELIX 15 15 ALA A 358 VAL A 370 1 13 SHEET 1 A 7 LYS A 56 SER A 57 0 SHEET 2 A 7 ASN A 31 THR A 36 1 N THR A 36 O LYS A 56 SHEET 3 A 7 ASN A 3 ILE A 7 1 N VAL A 4 O VAL A 33 SHEET 4 A 7 ILE A 69 THR A 72 1 O VAL A 71 N GLY A 5 SHEET 5 A 7 TYR A 94 ASP A 97 1 O VAL A 96 N ILE A 70 SHEET 6 A 7 THR A 130 GLY A 133 1 O GLY A 133 N ASP A 97 SHEET 7 A 7 ALA A 108 VAL A 111 1 N ILE A 109 O VAL A 132 SHEET 1 B 7 LEU A 227 ILE A 228 0 SHEET 2 B 7 VAL A 264 ILE A 271 -1 O ARG A 270 N ILE A 228 SHEET 3 B 7 VAL A 154 GLN A 163 1 N GLN A 163 O VAL A 269 SHEET 4 B 7 CYS A 276 LEU A 285 -1 O ALA A 280 N ALA A 160 SHEET 5 B 7 TYR A 344 ASP A 352 -1 O ALA A 347 N PHE A 281 SHEET 6 B 7 VAL A 330 LYS A 337 -1 N GLY A 333 O PHE A 348 SHEET 7 B 7 VAL A 305 VAL A 307 1 N LYS A 306 O VAL A 332 LINK C ASN A 135 N HTI A 136 1555 1555 1.33 LINK C HTI A 136 N THR A 137 1555 1555 1.33 SITE 1 AC1 9 SER A 100 ARG A 103 ASN A 135 HTI A 136 SITE 2 AC1 9 LYS A 246 PO4 A 373 HOH A 421 HOH A 429 SITE 3 AC1 9 HOH A 471 SITE 1 AC2 5 SER A 100 ASP A 232 LYS A 242 LYS A 246 SITE 2 AC2 5 PO4 A 372 CRYST1 113.748 54.853 57.691 90.00 90.00 90.00 P 21 21 2 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 0.008791 0.000000 0.000000 0.00000 SCALE2 0.000000 0.018231 0.000000 0.00000 SCALE3 0.000000 0.000000 0.017334 0.00000