HEADER IMMUNE SYSTEM 21-MAY-19 6P2F TITLE STRUCTURE OF A NESTED SET OF N-TERMINALLY EXTENDED MHC I-PEPTIDES TITLE 2 PROVIDES NOVEL INSIGHTS INTO ANTIGEN PROCESSING AND PRESENTATION COMPND MOL_ID: 1; COMPND 2 MOLECULE: HLA CLASS I HISTOCOMPATIBILITY ANTIGEN, B-8 ALPHA CHAIN; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: UNP RESIDUES 25-300; COMPND 5 SYNONYM: MHC CLASS I ANTIGEN B*8; COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES; COMPND 8 MOL_ID: 2; COMPND 9 MOLECULE: BETA-2-MICROGLOBULIN; COMPND 10 CHAIN: B; COMPND 11 FRAGMENT: UNP RESIDUES 21-119; COMPND 12 ENGINEERED: YES; COMPND 13 MOL_ID: 3; COMPND 14 MOLECULE: MHC I-PEPTIDE; COMPND 15 CHAIN: C; COMPND 16 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 BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3)PLYSS; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PLM1; 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: 562; SOURCE 18 EXPRESSION_SYSTEM_STRAIN: XA90; SOURCE 19 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 20 EXPRESSION_SYSTEM_PLASMID: PHN1; SOURCE 21 MOL_ID: 3; SOURCE 22 SYNTHETIC: YES; SOURCE 23 ORGANISM_SCIENTIFIC: HUMAN IMMUNODEFICIENCY VIRUS 1; SOURCE 24 ORGANISM_COMMON: HIV-1; SOURCE 25 ORGANISM_TAXID: 11676 KEYWDS MHC I ANTIGEN PROCESSING, MHC I ANTIGEN PRESENTATION, MHC I KEYWDS 2 STRUCTURE, MHC I IMMUNOPEPTIDE, IMMUNE SYSTEM EXPDTA X-RAY DIFFRACTION AUTHOR L.LI,M.BATLIWALA,M.BOUVIER REVDAT 5 13-NOV-24 6P2F 1 REMARK REVDAT 4 11-OCT-23 6P2F 1 REMARK REVDAT 3 18-DEC-19 6P2F 1 JRNL REVDAT 2 23-OCT-19 6P2F 1 JRNL REVDAT 1 16-OCT-19 6P2F 0 JRNL AUTH L.LI,M.BATLIWALA,M.BOUVIER JRNL TITL ERAP1 ENZYME-MEDIATED TRIMMING AND STRUCTURAL ANALYSES OF JRNL TITL 2 MHC I-BOUND PRECURSOR PEPTIDES YIELD NOVEL INSIGHTS INTO JRNL TITL 3 ANTIGEN PROCESSING AND PRESENTATION. JRNL REF J.BIOL.CHEM. V. 294 18534 2019 JRNL REFN ESSN 1083-351X JRNL PMID 31601650 JRNL DOI 10.1074/JBC.RA119.010102 REMARK 2 REMARK 2 RESOLUTION. 1.48 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.8.1_1168 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 : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.48 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 19.22 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.330 REMARK 3 COMPLETENESS FOR RANGE (%) : 98.2 REMARK 3 NUMBER OF REFLECTIONS : 76357 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.216 REMARK 3 R VALUE (WORKING SET) : 0.215 REMARK 3 FREE R VALUE : 0.245 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 3815 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 19.2162 - 4.4274 0.97 2853 151 0.1487 0.1798 REMARK 3 2 4.4274 - 3.5213 0.99 2788 146 0.1727 0.1949 REMARK 3 3 3.5213 - 3.0782 0.99 2772 146 0.1840 0.2387 REMARK 3 4 3.0782 - 2.7977 1.00 2764 146 0.2109 0.1944 REMARK 3 5 2.7977 - 2.5977 1.00 2741 144 0.2068 0.2816 REMARK 3 6 2.5977 - 2.4449 1.00 2752 145 0.2090 0.2338 REMARK 3 7 2.4449 - 2.3226 1.00 2729 143 0.2200 0.2512 REMARK 3 8 2.3226 - 2.2217 0.97 2632 138 0.3543 0.3931 REMARK 3 9 2.2217 - 2.1363 1.00 2739 145 0.2344 0.2662 REMARK 3 10 2.1363 - 2.0626 1.00 2732 143 0.2179 0.2276 REMARK 3 11 2.0626 - 1.9982 1.00 2712 143 0.2237 0.2535 REMARK 3 12 1.9982 - 1.9411 0.98 2684 141 0.2577 0.2771 REMARK 3 13 1.9411 - 1.8901 0.81 2196 113 0.4068 0.4370 REMARK 3 14 1.8901 - 1.8440 1.00 2735 143 0.2587 0.3130 REMARK 3 15 1.8440 - 1.8021 1.00 2720 144 0.2353 0.2597 REMARK 3 16 1.8021 - 1.7638 1.00 2700 142 0.2318 0.2711 REMARK 3 17 1.7638 - 1.7285 1.00 2709 142 0.2059 0.2463 REMARK 3 18 1.7285 - 1.6959 1.00 2679 141 0.1979 0.2312 REMARK 3 19 1.6959 - 1.6657 1.00 2736 144 0.2053 0.2405 REMARK 3 20 1.6657 - 1.6375 1.00 2688 142 0.2019 0.2626 REMARK 3 21 1.6375 - 1.6111 1.00 2718 143 0.2038 0.2562 REMARK 3 22 1.6111 - 1.5863 1.00 2676 141 0.2083 0.2900 REMARK 3 23 1.5863 - 1.5630 1.00 2756 145 0.2219 0.2552 REMARK 3 24 1.5630 - 1.5410 1.00 2684 141 0.2294 0.2437 REMARK 3 25 1.5410 - 1.5201 1.00 2697 142 0.2524 0.2921 REMARK 3 26 1.5201 - 1.5004 1.00 2681 141 0.2812 0.3017 REMARK 3 27 1.5004 - 1.4817 0.84 2269 120 0.3608 0.3684 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : NULL 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) : 0.180 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 23.770 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL 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 : 0.011 3230 REMARK 3 ANGLE : 1.353 4378 REMARK 3 CHIRALITY : 0.093 446 REMARK 3 PLANARITY : 0.007 580 REMARK 3 DIHEDRAL : 14.142 1196 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : 1 REMARK 3 TLS GROUP : 1 REMARK 3 SELECTION: ALL REMARK 3 ORIGIN FOR THE GROUP (A): -12.2580 -9.6338 18.6950 REMARK 3 T TENSOR REMARK 3 T11: 0.1318 T22: 0.1062 REMARK 3 T33: 0.1249 T12: 0.0051 REMARK 3 T13: 0.0125 T23: -0.0050 REMARK 3 L TENSOR REMARK 3 L11: 1.0662 L22: 0.4575 REMARK 3 L33: 0.7479 L12: 0.1209 REMARK 3 L13: 0.4594 L23: 0.0098 REMARK 3 S TENSOR REMARK 3 S11: -0.0322 S12: -0.0161 S13: 0.0908 REMARK 3 S21: -0.0528 S22: -0.0092 S23: 0.0282 REMARK 3 S31: -0.0320 S32: -0.0541 S33: 0.0354 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 6P2F COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 22-MAY-19. REMARK 100 THE DEPOSITION ID IS D_1000241777. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 04-OCT-18 REMARK 200 TEMPERATURE (KELVIN) : 80 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 21-ID-G REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.97872 REMARK 200 MONOCHROMATOR : DIAMOND(111) REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARMOSAIC 300 MM CCD REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : XDS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 76357 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.480 REMARK 200 RESOLUTION RANGE LOW (A) : 19.215 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.8 REMARK 200 DATA REDUNDANCY : 5.600 REMARK 200 R MERGE (I) : 0.07000 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 11.6700 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.48 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.53 REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.58000 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: PHENIX REMARK 200 STARTING MODEL: PDB ENTRY 1AGB REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 52.45 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.59 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.2 M AMMONIUM SULFATE, 18% PEG4000, REMARK 280 0.1 M SODIUM CACODYLATE, PH 5.7, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 298K 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 25.42250 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 55.53000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 40.95950 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 55.53000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 25.42250 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 40.95950 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: 4310 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 18940 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -24.0 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 ARG C -4 REMARK 465 MAA C -3 REMARK 465 ARG C -2 REMARK 465 ALA C -1 REMARK 465 ARG C 0 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 NH2 ARG A 44 OD1 ASP A 61 2.19 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 73.96 -152.75 REMARK 500 ASP A 29 -122.66 48.49 REMARK 500 GLN A 224 52.12 -106.91 REMARK 500 ARG A 239 -22.65 91.86 REMARK 500 LYS B 48 41.99 -95.21 REMARK 500 TRP B 60 -3.27 78.34 REMARK 500 REMARK 500 REMARK: NULL DBREF 6P2F A 1 276 UNP P30460 1B08_HUMAN 25 300 DBREF 6P2F B 1 99 UNP P61769 B2MG_HUMAN 21 119 DBREF 6P2F C -4 9 PDB 6P2F 6P2F -4 9 SEQADV 6P2F CYS A 76 UNP P30460 GLU 100 ENGINEERED MUTATION SEQADV 6P2F MET B 0 UNP P61769 INITIATING METHIONINE SEQRES 1 A 276 GLY SER HIS SER MET ARG TYR PHE ASP THR ALA MET SER SEQRES 2 A 276 ARG PRO GLY ARG GLY GLU PRO ARG PHE ILE SER 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 GLU GLU PRO ARG ALA PRO TRP ILE SEQRES 5 A 276 GLU GLN GLU GLY PRO GLU TYR TRP ASP ARG ASN THR GLN SEQRES 6 A 276 ILE PHE LYS THR ASN THR GLN THR ASP ARG CYS SER LEU SEQRES 7 A 276 ARG ASN LEU ARG GLY TYR TYR ASN GLN SER GLU ALA GLY SEQRES 8 A 276 SER HIS THR LEU GLN SER MET TYR GLY CYS ASP VAL GLY SEQRES 9 A 276 PRO ASP GLY ARG LEU LEU ARG GLY HIS ASN GLN TYR ALA SEQRES 10 A 276 TYR ASP GLY LYS ASP TYR ILE ALA LEU ASN GLU ASP LEU SEQRES 11 A 276 ARG 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 ASP SEQRES 13 A 276 ARG ALA TYR LEU GLU GLY THR CYS VAL GLU TRP LEU ARG SEQRES 14 A 276 ARG TYR LEU GLU ASN GLY LYS ASP THR LEU GLU 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 100 MET ILE GLN ARG THR PRO LYS ILE GLN VAL TYR SER ARG SEQRES 2 B 100 HIS PRO ALA GLU ASN GLY LYS SER ASN PHE LEU ASN CYS SEQRES 3 B 100 TYR VAL SER GLY PHE HIS PRO SER ASP ILE GLU VAL ASP SEQRES 4 B 100 LEU LEU LYS ASN GLY GLU ARG ILE GLU LYS VAL GLU HIS SEQRES 5 B 100 SER ASP LEU SER PHE SER LYS ASP TRP SER PHE TYR LEU SEQRES 6 B 100 LEU TYR TYR THR GLU PHE THR PRO THR GLU LYS ASP GLU SEQRES 7 B 100 TYR ALA CYS ARG VAL ASN HIS VAL THR LEU SER GLN PRO SEQRES 8 B 100 LYS ILE VAL LYS TRP ASP ARG ASP MET SEQRES 1 C 14 ARG MAA ARG ALA ARG ALA ALA ALA LYS LYS GLY TYR CYS SEQRES 2 C 14 LEU FORMUL 4 HOH *274(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 GLU A 180 1 6 HELIX 7 AA7 GLU A 253 GLN A 255 5 3 SHEET 1 AA1 8 GLU A 46 PRO A 47 0 SHEET 2 AA1 8 THR A 31 ASP A 37 -1 N ARG A 35 O GLU 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 THR 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 TYR 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 SER A 195 0 SHEET 2 AA2 4 GLU A 198 PHE A 208 -1 O LEU A 206 N LYS A 186 SHEET 3 AA2 4 PHE A 241 PRO A 250 -1 O ALA A 245 N CYS A 203 SHEET 4 AA2 4 THR A 228 LEU A 230 -1 N GLU A 229 O ALA A 246 SHEET 1 AA3 4 LYS A 186 SER A 195 0 SHEET 2 AA3 4 GLU A 198 PHE A 208 -1 O LEU A 206 N LYS A 186 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 76 CYS C 8 1555 1555 2.08 SSBOND 2 CYS A 101 CYS A 164 1555 1555 2.13 SSBOND 3 CYS A 203 CYS A 259 1555 1555 2.05 SSBOND 4 CYS B 25 CYS B 80 1555 1555 2.02 CISPEP 1 TYR A 209 PRO A 210 0 1.68 CISPEP 2 HIS B 31 PRO B 32 0 2.76 CRYST1 50.845 81.919 111.060 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 0.019668 0.000000 0.000000 0.00000 SCALE2 0.000000 0.012207 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009004 0.00000