HEADER IMMUNE SYSTEM 18-DEC-17 6BXP TITLE CRYSTAL STRUCTURE OF HLA-B*57:01 WITH A MODIFIED HIV PEPTIDE RKV-KYN COMPND MOL_ID: 1; COMPND 2 MOLECULE: HLA CLASS I HISTOCOMPATIBILITY ANTIGEN, B-57 ALPHA CHAIN; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: RESIDUES 25-300; COMPND 5 SYNONYM: BW-57,MHC CLASS I ANTIGEN B*57; COMPND 6 ENGINEERED: YES; COMPND 7 MOL_ID: 2; COMPND 8 MOLECULE: BETA-2-MICROGLOBULIN; COMPND 9 CHAIN: B; COMPND 10 ENGINEERED: YES; COMPND 11 MOL_ID: 3; COMPND 12 MOLECULE: HIV PEPTIDE RKV-KYN; COMPND 13 CHAIN: C; COMPND 14 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: HLA-B, HLAB; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PET30; SOURCE 11 MOL_ID: 2; SOURCE 12 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 13 ORGANISM_COMMON: HUMAN; SOURCE 14 ORGANISM_TAXID: 9606; SOURCE 15 GENE: B2M, CDABP0092, HDCMA22P; SOURCE 16 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 17 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 18 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 19 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 20 EXPRESSION_SYSTEM_PLASMID: PET30; SOURCE 21 MOL_ID: 3; SOURCE 22 SYNTHETIC: YES; SOURCE 23 ORGANISM_SCIENTIFIC: HUMAN IMMUNODEFICIENCY VIRUS 1; SOURCE 24 ORGANISM_TAXID: 11676 KEYWDS IMMUNOPEPTIDOME, KYNURENINE, HIV, PTM, HLA-B*57:01, IMMUNE SYSTEM EXPDTA X-RAY DIFFRACTION AUTHOR S.GRAS,J.ROSSJOHN REVDAT 4 04-OCT-23 6BXP 1 LINK REVDAT 3 04-JUL-18 6BXP 1 JRNL REVDAT 2 25-APR-18 6BXP 1 JRNL REVDAT 1 14-MAR-18 6BXP 0 JRNL AUTH S.H.RAMARATHINAM,S.GRAS,S.ALCANTARA,A.W.S.YEUNG,N.A.MIFSUD, JRNL AUTH 2 S.SONZA,P.T.ILLING,E.N.GLAROS,R.J.CENTER,S.R.THOMAS, JRNL AUTH 3 S.J.KENT,N.TERNETTE,D.F.J.PURCELL,J.ROSSJOHN,A.W.PURCELL JRNL TITL IDENTIFICATION OF NATIVE AND POSTTRANSLATIONALLY MODIFIED JRNL TITL 2 HLA-B*57:01-RESTRICTED HIV ENVELOPE DERIVED EPITOPES USING JRNL TITL 3 IMMUNOPROTEOMICS. JRNL REF PROTEOMICS V. 18 00253 2018 JRNL REFN ESSN 1615-9861 JRNL PMID 29437277 JRNL DOI 10.1002/PMIC.201700253 REMARK 2 REMARK 2 RESOLUTION. 1.45 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : BUSTER 2.10.0 REMARK 3 AUTHORS : BRICOGNE,BLANC,BRANDL,FLENSBURG,KELLER, REMARK 3 : PACIOREK,ROVERSI,SHARFF,SMART,VONRHEIN, REMARK 3 : WOMACK,MATTHEWS,TEN EYCK,TRONRUD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.45 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 21.23 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 96.7 REMARK 3 NUMBER OF REFLECTIONS : 79250 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) : 0.171 REMARK 3 R VALUE (WORKING SET) : 0.170 REMARK 3 FREE R VALUE : 0.194 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.070 REMARK 3 FREE R VALUE TEST SET COUNT : 4018 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (ANGSTROMS) : 1.45 REMARK 3 BIN RESOLUTION RANGE LOW (ANGSTROMS) : 1.49 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 96.72 REMARK 3 REFLECTIONS IN BIN (WORKING + TEST SET) : 5908 REMARK 3 BIN R VALUE (WORKING + TEST SET) : 0.2171 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 5627 REMARK 3 BIN R VALUE (WORKING SET) : 0.2156 REMARK 3 BIN FREE R VALUE : 0.2473 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 4.76 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 281 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.000 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 3118 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 4 REMARK 3 SOLVENT ATOMS : 573 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 18.08 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 23.03 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.27710 REMARK 3 B22 (A**2) : 1.50020 REMARK 3 B33 (A**2) : -1.77730 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) : 0.153 REMARK 3 DPI (BLOW EQ-10) BASED ON R VALUE (A) : 0.066 REMARK 3 DPI (BLOW EQ-9) BASED ON FREE R VALUE (A) : 0.066 REMARK 3 DPI (CRUICKSHANK) BASED ON R VALUE (A) : 0.061 REMARK 3 DPI (CRUICKSHANK) BASED ON FREE R VALUE (A) : 0.063 REMARK 3 REMARK 3 REFERENCES: BLOW, D. (2002) ACTA CRYST D58, 792-797 REMARK 3 CRUICKSHANK, D.W.J. (1999) ACTA CRYST D55, 583-601 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.964 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.954 REMARK 3 REMARK 3 NUMBER OF GEOMETRIC FUNCTION TERMS DEFINED : 15 REMARK 3 TERM COUNT WEIGHT FUNCTION. REMARK 3 BOND LENGTHS : 3414 ; 2.000 ; HARMONIC REMARK 3 BOND ANGLES : 4672 ; 2.000 ; HARMONIC REMARK 3 TORSION ANGLES : 1200 ; 2.000 ; SINUSOIDAL REMARK 3 TRIGONAL CARBON PLANES : 89 ; 2.000 ; HARMONIC REMARK 3 GENERAL PLANES : 517 ; 5.000 ; HARMONIC REMARK 3 ISOTROPIC THERMAL FACTORS : 3414 ; 20.000 ; HARMONIC REMARK 3 BAD NON-BONDED CONTACTS : NULL ; NULL ; NULL REMARK 3 IMPROPER TORSIONS : NULL ; NULL ; NULL REMARK 3 PSEUDOROTATION ANGLES : NULL ; NULL ; NULL REMARK 3 CHIRAL IMPROPER TORSION : 422 ; 5.000 ; SEMIHARMONIC REMARK 3 SUM OF OCCUPANCIES : NULL ; NULL ; NULL REMARK 3 UTILITY DISTANCES : NULL ; NULL ; NULL REMARK 3 UTILITY ANGLES : NULL ; NULL ; NULL REMARK 3 UTILITY TORSION : NULL ; NULL ; NULL REMARK 3 IDEAL-DIST CONTACT TERM : 4409 ; 4.000 ; SEMIHARMONIC REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.010 REMARK 3 BOND ANGLES (DEGREES) : 1.09 REMARK 3 PEPTIDE OMEGA TORSION ANGLES (DEGREES) : 4.13 REMARK 3 OTHER TORSION ANGLES (DEGREES) : 14.66 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 6BXP COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 19-DEC-17. REMARK 100 THE DEPOSITION ID IS D_1000231759. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 09-DEC-14 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.5 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) : 0.954 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315R REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : AIMLESS 0.3.6 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 79286 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.450 REMARK 200 RESOLUTION RANGE LOW (A) : 27.960 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 97.3 REMARK 200 DATA REDUNDANCY : 3.700 REMARK 200 R MERGE (I) : 0.07700 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 9.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.45 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.48 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.0 REMARK 200 DATA REDUNDANCY IN SHELL : 3.70 REMARK 200 R MERGE FOR SHELL (I) : 0.61100 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: 4G9D REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 52.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.56 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 18%PEG4000, 0.2M NH4 AC, 0.1M REMARK 280 NACITRATE, PH 6.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE REMARK 280 277K 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 25.22300 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 55.21700 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 41.02550 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 55.21700 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 25.22300 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 41.02550 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: TRIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 4500 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 19000 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -19.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C 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 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 PRO A 276 REMARK 465 GLU C 4 REMARK 465 LYS C 5 REMARK 465 TYR C 6 REMARK 465 GLN C 7 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 A 122 O HOH A 401 2.02 REMARK 500 OE1 GLN A 115 O HOH A 402 2.08 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 LEU C 9 C KYN C 10 N 0.281 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 ARG A 14 59.83 -154.74 REMARK 500 ARG A 14 83.95 -154.74 REMARK 500 ASP A 29 -125.31 56.19 REMARK 500 ASP A 114 102.70 -162.25 REMARK 500 TYR A 123 -70.88 -113.42 REMARK 500 GLN A 224 45.13 -106.87 REMARK 500 ARG A 239 -25.19 96.53 REMARK 500 ARG A 239 -26.60 92.48 REMARK 500 TRP B 60 -0.32 77.47 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 829 DISTANCE = 6.87 ANGSTROMS REMARK 525 HOH A 830 DISTANCE = 7.04 ANGSTROMS REMARK 525 HOH B 233 DISTANCE = 8.71 ANGSTROMS REMARK 525 HOH B 234 DISTANCE = 9.57 ANGSTROMS REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue ACT A 301 DBREF 6BXP A 1 276 UNP P18465 1B57_HUMAN 25 300 DBREF 6BXP B 1 99 UNP P61769 B2MG_HUMAN 21 119 DBREF 6BXP C 1 10 PDB 6BXP 6BXP 1 10 SEQRES 1 A 276 GLY SER HIS SER MET ARG TYR PHE TYR THR ALA MET SER SEQRES 2 A 276 ARG PRO GLY ARG GLY GLU PRO ARG PHE ILE ALA VAL GLY SEQRES 3 A 276 TYR VAL ASP ASP THR GLN PHE VAL ARG PHE ASP SER ASP SEQRES 4 A 276 ALA ALA SER PRO ARG MET ALA PRO ARG ALA PRO TRP ILE SEQRES 5 A 276 GLU GLN GLU GLY PRO GLU TYR TRP ASP GLY GLU THR ARG SEQRES 6 A 276 ASN MET LYS ALA SER ALA GLN THR TYR ARG GLU ASN LEU SEQRES 7 A 276 ARG ILE ALA LEU ARG TYR TYR ASN GLN SER GLU ALA GLY SEQRES 8 A 276 SER HIS ILE ILE GLN VAL MET TYR GLY CYS ASP VAL GLY SEQRES 9 A 276 PRO ASP GLY ARG LEU LEU ARG GLY HIS ASP GLN SER ALA SEQRES 10 A 276 TYR ASP GLY LYS ASP TYR ILE ALA LEU ASN GLU ASP LEU SEQRES 11 A 276 SER SER TRP THR ALA ALA ASP THR ALA ALA GLN ILE THR SEQRES 12 A 276 GLN ARG LYS TRP GLU ALA ALA ARG VAL ALA GLU GLN LEU SEQRES 13 A 276 ARG ALA TYR LEU GLU GLY LEU CYS VAL GLU TRP LEU ARG SEQRES 14 A 276 ARG TYR LEU GLU ASN GLY LYS GLU THR LEU GLN ARG ALA SEQRES 15 A 276 ASP PRO PRO LYS THR HIS VAL THR HIS HIS PRO ILE SER SEQRES 16 A 276 ASP HIS GLU ALA THR LEU ARG CYS TRP ALA LEU GLY PHE SEQRES 17 A 276 TYR PRO ALA GLU ILE THR LEU THR TRP GLN ARG ASP GLY SEQRES 18 A 276 GLU ASP GLN THR GLN ASP THR GLU LEU VAL GLU THR ARG SEQRES 19 A 276 PRO ALA GLY ASP ARG THR PHE GLN LYS TRP ALA ALA VAL SEQRES 20 A 276 VAL VAL PRO SER GLY GLU GLU GLN ARG TYR THR CYS HIS SEQRES 21 A 276 VAL GLN HIS GLU GLY LEU PRO LYS PRO LEU THR LEU ARG SEQRES 22 A 276 TRP GLU PRO SEQRES 1 B 99 ILE GLN ARG THR PRO LYS ILE GLN VAL TYR SER ARG HIS SEQRES 2 B 99 PRO ALA GLU ASN GLY LYS SER ASN PHE LEU ASN CYS TYR SEQRES 3 B 99 VAL SER GLY PHE HIS PRO SER ASP ILE GLU VAL ASP LEU SEQRES 4 B 99 LEU LYS ASN GLY GLU ARG ILE GLU LYS VAL GLU HIS SER SEQRES 5 B 99 ASP LEU SER PHE SER LYS ASP TRP SER PHE TYR LEU LEU SEQRES 6 B 99 TYR TYR THR GLU PHE THR PRO THR GLU LYS ASP GLU TYR SEQRES 7 B 99 ALA CYS ARG VAL ASN HIS VAL THR LEU SER GLN PRO LYS SEQRES 8 B 99 ILE VAL LYS TRP ASP ARG ASP MET SEQRES 1 C 10 ARG VAL LYS GLU LYS TYR GLN HIS LEU KYN HET KYN C 10 15 HET ACT A 301 7 HETNAM KYN (2S)-2-AMINO-4-(2-AMINOPHENYL)-4-OXOBUTANOIC ACID HETNAM ACT ACETATE ION HETSYN KYN L-KYNURENINE FORMUL 3 KYN C10 H12 N2 O3 FORMUL 4 ACT C2 H3 O2 1- FORMUL 5 HOH *573(H2 O) HELIX 1 AA1 ALA A 49 GLU A 53 5 5 HELIX 2 AA2 GLY A 56 TYR A 85 1 30 HELIX 3 AA3 ASP A 137 ALA A 150 1 14 HELIX 4 AA4 ARG A 151 GLY A 162 1 12 HELIX 5 AA5 GLY A 162 GLY A 175 1 14 HELIX 6 AA6 GLY A 175 GLN A 180 1 6 HELIX 7 AA7 GLU A 253 GLN A 255 5 3 SHEET 1 AA1 8 ALA A 46 PRO A 47 0 SHEET 2 AA1 8 THR A 31 ASP A 37 -1 N ARG A 35 O ALA A 46 SHEET 3 AA1 8 ARG A 21 VAL A 28 -1 N GLY A 26 O PHE A 33 SHEET 4 AA1 8 HIS A 3 MET A 12 -1 N ARG A 6 O TYR A 27 SHEET 5 AA1 8 ILE A 94 VAL A 103 -1 O VAL A 103 N HIS A 3 SHEET 6 AA1 8 LEU A 109 TYR A 118 -1 O LEU A 110 N ASP A 102 SHEET 7 AA1 8 LYS A 121 LEU A 126 -1 O TYR A 123 N SER A 116 SHEET 8 AA1 8 TRP A 133 ALA A 135 -1 O THR A 134 N ALA A 125 SHEET 1 AA2 4 LYS A 186 PRO A 193 0 SHEET 2 AA2 4 GLU A 198 PHE A 208 -1 O TRP A 204 N HIS A 188 SHEET 3 AA2 4 PHE A 241 PRO A 250 -1 O ALA A 245 N CYS A 203 SHEET 4 AA2 4 GLU A 229 LEU A 230 -1 N GLU A 229 O ALA A 246 SHEET 1 AA3 4 LYS A 186 PRO A 193 0 SHEET 2 AA3 4 GLU A 198 PHE A 208 -1 O TRP A 204 N HIS A 188 SHEET 3 AA3 4 PHE A 241 PRO A 250 -1 O ALA A 245 N CYS A 203 SHEET 4 AA3 4 ARG A 234 PRO A 235 -1 N ARG A 234 O GLN A 242 SHEET 1 AA4 4 GLU A 222 ASP A 223 0 SHEET 2 AA4 4 THR A 214 ARG A 219 -1 N ARG A 219 O GLU A 222 SHEET 3 AA4 4 TYR A 257 GLN A 262 -1 O HIS A 260 N THR A 216 SHEET 4 AA4 4 LEU A 270 LEU A 272 -1 O LEU A 272 N CYS A 259 SHEET 1 AA5 4 LYS B 6 SER B 11 0 SHEET 2 AA5 4 ASN B 21 PHE B 30 -1 O ASN B 24 N TYR B 10 SHEET 3 AA5 4 PHE B 62 PHE B 70 -1 O THR B 68 N LEU B 23 SHEET 4 AA5 4 GLU B 50 HIS B 51 -1 N GLU B 50 O TYR B 67 SHEET 1 AA6 4 LYS B 6 SER B 11 0 SHEET 2 AA6 4 ASN B 21 PHE B 30 -1 O ASN B 24 N TYR B 10 SHEET 3 AA6 4 PHE B 62 PHE B 70 -1 O THR B 68 N LEU B 23 SHEET 4 AA6 4 SER B 55 PHE B 56 -1 N SER B 55 O TYR B 63 SHEET 1 AA7 4 GLU B 44 ARG B 45 0 SHEET 2 AA7 4 GLU B 36 LYS B 41 -1 N LYS B 41 O GLU B 44 SHEET 3 AA7 4 TYR B 78 ASN B 83 -1 O ALA B 79 N LEU B 40 SHEET 4 AA7 4 LYS B 91 LYS B 94 -1 O LYS B 91 N VAL B 82 SSBOND 1 CYS A 101 CYS A 164 1555 1555 2.10 SSBOND 2 CYS A 203 CYS A 259 1555 1555 2.02 SSBOND 3 CYS B 25 CYS B 80 1555 1555 2.02 LINK C LEU C 9 N KYN C 10 1555 1555 1.62 CISPEP 1 TYR A 209 PRO A 210 0 2.17 CISPEP 2 HIS B 31 PRO B 32 0 3.29 SITE 1 AC1 4 SER A 92 HIS A 93 ASP A 119 HOH A 492 CRYST1 50.446 82.051 110.434 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 0.019823 0.000000 0.000000 0.00000 SCALE2 0.000000 0.012188 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009055 0.00000