HEADER IMMUNE SYSTEM 28-JAN-10 2X44 TITLE STRUCTURE OF A STRAND-SWAPPED DIMERIC FORM OF CTLA-4 COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYTOTOXIC T-LYMPHOCYTE PROTEIN 4; COMPND 3 CHAIN: D; COMPND 4 FRAGMENT: RESIDUES 36-161; COMPND 5 SYNONYM: CYTOTOXIC T-LYMPHOCYTE-ASSOCIATED ANTIGEN 4, CTLA-4, CD152, COMPND 6 CYTOTOXIC T-LYMPHOCYTE ANTIGEN 4; COMPND 7 ENGINEERED: YES; COMPND 8 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 CELL_LINE: JURKAT; SOURCE 6 TISSUE: BLOOD; SOURCE 7 CELL: T-LYMPHOCYTE; SOURCE 8 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 9 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 10 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 11 OTHER_DETAILS: CDNA GENERATED DIRECTLY FROM JURKAT CELLS, CLONED AND SOURCE 12 MUTATED CYS122SER. KEYWDS IMMUNE SYSTEM, AMYLOIDOGENIC, SYSTEMIC LUPUS ERYTHEMATOSUS, KEYWDS 2 IMMUNOGLOBULIN DOMAIN, MEMBRANE, GLYCOPROTEIN, TRANSMEMBRANE EXPDTA X-RAY DIFFRACTION AUTHOR A.F.-P.SONNEN,C.YU,E.J.EVANS,D.I.STUART,S.J.DAVIS,R.J.C.GILBERT REVDAT 5 20-NOV-24 2X44 1 REMARK REVDAT 4 20-DEC-23 2X44 1 REMARK REVDAT 3 10-AUG-11 2X44 1 JRNL REMARK REVDAT 2 13-JUL-11 2X44 1 VERSN REVDAT 1 07-APR-10 2X44 0 JRNL AUTH A.F.SONNEN,C.YU,E.J.EVANS,D.I.STUART,S.J.DAVIS,R.J.C.GILBERT JRNL TITL DOMAIN METASTABILITY: A MOLECULAR BASIS FOR IMMUNOGLOBULIN JRNL TITL 2 DEPOSITION? JRNL REF J.MOL.BIOL. V. 399 207 2010 JRNL REFN ISSN 0022-2836 JRNL PMID 20394753 JRNL DOI 10.1016/J.JMB.2010.04.011 REMARK 2 REMARK 2 RESOLUTION. 2.60 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.5.0047 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) : 2.60 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 18.60 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 89.1 REMARK 3 NUMBER OF REFLECTIONS : 4289 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) : 0.194 REMARK 3 R VALUE (WORKING SET) : 0.192 REMARK 3 FREE R VALUE : 0.245 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.200 REMARK 3 FREE R VALUE TEST SET COUNT : 189 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) : 2.60 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.67 REMARK 3 REFLECTION IN BIN (WORKING SET) : 226 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 64.40 REMARK 3 BIN R VALUE (WORKING SET) : 0.2430 REMARK 3 BIN FREE R VALUE SET COUNT : 11 REMARK 3 BIN FREE R VALUE : 0.2370 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 906 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 50 REMARK 3 REMARK 3 B VALUES. REMARK 3 B VALUE TYPE : LIKELY RESIDUAL REMARK 3 FROM WILSON PLOT (A**2) : 58.27 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 22.85 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -1.30000 REMARK 3 B22 (A**2) : -1.30000 REMARK 3 B33 (A**2) : 1.96000 REMARK 3 B12 (A**2) : -0.65000 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): 0.783 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.318 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.243 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 26.265 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.941 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.903 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 932 ; 0.006 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): 603 ; 0.001 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 1270 ; 1.024 ; 1.975 REMARK 3 BOND ANGLES OTHERS (DEGREES): 1482 ; 0.905 ; 3.005 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 122 ; 5.562 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 35 ;31.691 ;24.857 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 154 ;17.257 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 4 ;13.121 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 150 ; 0.061 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1040 ; 0.003 ; 0.021 REMARK 3 GENERAL PLANES OTHERS (A): 172 ; 0.001 ; 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): 606 ; 3.142 ; 3.000 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): 247 ; 0.877 ; 3.000 REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 982 ; 5.254 ; 3.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 326 ; 6.670 ; 4.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 288 ;10.460 ; 6.000 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): NULL ; NULL ; NULL 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 : 1 REMARK 3 REMARK 3 TLS GROUP : 1 REMARK 3 NUMBER OF COMPONENTS GROUP : 2 REMARK 3 COMPONENTS C SSSEQI TO C SSSEQI REMARK 3 RESIDUE RANGE : D 0 D 120 REMARK 3 RESIDUE RANGE : D 2001 D 2050 REMARK 3 ORIGIN FOR THE GROUP (A): 18.3210 -3.4420 15.7090 REMARK 3 T TENSOR REMARK 3 T11: 0.2528 T22: 0.3720 REMARK 3 T33: 0.2383 T12: -0.0337 REMARK 3 T13: 0.0303 T23: -0.0013 REMARK 3 L TENSOR REMARK 3 L11: 4.2456 L22: 1.0956 REMARK 3 L33: 3.5972 L12: 2.0074 REMARK 3 L13: -3.8904 L23: -1.8989 REMARK 3 S TENSOR REMARK 3 S11: -0.0304 S12: -0.5276 S13: -0.1545 REMARK 3 S21: -0.0754 S22: -0.0998 S23: -0.0647 REMARK 3 S31: 0.0625 S32: 0.3922 S33: 0.1301 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 : 1.20 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. ATOM RECORD CONTAINS RESIDUAL B FACTORS ONLY. REMARK 4 REMARK 4 2X44 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 28-JAN-10. REMARK 100 THE DEPOSITION ID IS D_1290042660. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 17-FEB-06 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MAR SCANNER 345 MM PLATE REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : XDS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 4289 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.600 REMARK 200 RESOLUTION RANGE LOW (A) : 18.600 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 85.0 REMARK 200 DATA REDUNDANCY : 22.10 REMARK 200 R MERGE (I) : 0.04000 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 29.1000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.60 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.70 REMARK 200 COMPLETENESS FOR SHELL (%) : 45.8 REMARK 200 DATA REDUNDANCY IN SHELL : 21.30 REMARK 200 R MERGE FOR SHELL (I) : 0.20000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 9.000 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 1I81 REMARK 200 REMARK 200 REMARK: NONE REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 57.16 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.87 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.02 M MAGNESIUM CHLORIDE, 0.1 M HEPES REMARK 280 PH 7.5, 22 % W/V POLYACRYLIC ACID 5100 SODIUM SALT, 0.4 M NDSB- REMARK 280 256 (OR 6 % 1,6-DIAMINOHEXANE). REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 31 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+1/3 REMARK 290 3555 -X+Y,-X,Z+2/3 REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z+2/3 REMARK 290 6555 -X,-X+Y,-Z+1/3 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 46.70033 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 93.40067 REMARK 290 SMTRY1 4 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 4 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 5 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 93.40067 REMARK 290 SMTRY1 6 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 46.70033 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 300 REMARK: THE STRUCTURE IS A DOMAIN SWAPPED DIMER OF CTLA-4 REMARK 300 WHICH CAN BE DERIVED BY APPLYING THE CRYSTALLOGRAPHIC SYMMETRY. 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 4780 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 13400 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -34.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: D 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 350 BIOMT2 2 -0.866025 0.500000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 46.70033 REMARK 400 REMARK 400 COMPOUND REMARK 400 ENGINEERED RESIDUE IN CHAIN D, CYS 157 TO SER 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 D 121 REMARK 465 SER D 122 REMARK 465 PRO D 123 REMARK 465 ASP D 124 REMARK 465 SER D 125 REMARK 465 ASP D 126 REMARK 465 LEU D 127 REMARK 465 VAL D 128 REMARK 465 PRO D 129 REMARK 465 ARG D 130 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 SER D 44 -10.22 74.41 REMARK 500 ASN D 75 54.49 -96.82 REMARK 500 PRO D 119 -157.86 -91.62 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1AH1 RELATED DB: PDB REMARK 900 CTLA-4, NMR, 20 STRUCTURES REMARK 900 RELATED ID: 1H6E RELATED DB: PDB REMARK 900 MU2 ADAPTIN SUBUNIT (AP50) OF AP2 ADAPTOR ( SECOND DOMAIN), REMARK 900 COMPLEXED WITH CTLA-4 INTERNALIZATION PEPTIDE TTGVYVKMPPT REMARK 900 RELATED ID: 1I8L RELATED DB: PDB REMARK 900 HUMAN B7-1/CTLA-4 CO-STIMULATORY COMPLEX REMARK 900 RELATED ID: 1I85 RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF THE CTLA-4/B7-2 COMPLEX DBREF 2X44 D 0 0 PDB 2X44 2X44 0 0 DBREF 2X44 D 1 126 UNP P16410 CTLA4_HUMAN 36 161 DBREF 2X44 D 127 130 PDB 2X44 2X44 127 130 SEQADV 2X44 SER D 122 UNP P16410 CYS 157 ENGINEERED MUTATION SEQRES 1 D 131 MET LYS ALA MET HIS VAL ALA GLN PRO ALA VAL VAL LEU SEQRES 2 D 131 ALA SER SER ARG GLY ILE ALA SER PHE VAL CYS GLU TYR SEQRES 3 D 131 ALA SER PRO GLY LYS ALA THR GLU VAL ARG VAL THR VAL SEQRES 4 D 131 LEU ARG GLN ALA ASP SER GLN VAL THR GLU VAL CYS ALA SEQRES 5 D 131 ALA THR TYR MET MET GLY ASN GLU LEU THR PHE LEU ASP SEQRES 6 D 131 ASP SER ILE CYS THR GLY THR SER SER GLY ASN GLN VAL SEQRES 7 D 131 ASN LEU THR ILE GLN GLY LEU ARG ALA MET ASP THR GLY SEQRES 8 D 131 LEU TYR ILE CYS LYS VAL GLU LEU MET TYR PRO PRO PRO SEQRES 9 D 131 TYR TYR LEU GLY ILE GLY ASN GLY THR GLN ILE TYR VAL SEQRES 10 D 131 ILE ASP PRO GLU PRO SER PRO ASP SER ASP LEU VAL PRO SEQRES 11 D 131 ARG FORMUL 2 HOH *50(H2 O) HELIX 1 1 ARG D 85 THR D 89 5 5 SHEET 1 DA 4 VAL D 5 ALA D 6 0 SHEET 2 DA 4 ALA D 19 TYR D 25 -1 O GLU D 24 N ALA D 6 SHEET 3 DA 4 GLN D 76 ILE D 81 -1 O VAL D 77 N CYS D 23 SHEET 4 DA 4 CYS D 68 SER D 72 -1 O THR D 69 N THR D 80 SHEET 1 DB 3 GLN D 45 TYR D 54 0 SHEET 2 DB 3 GLU D 33 ALA D 42 -1 O VAL D 34 N TYR D 54 SHEET 3 DB 3 LEU D 91 MET D 99 -1 O LEU D 91 N GLN D 41 SSBOND 1 CYS D 23 CYS D 94 1555 1555 2.03 SSBOND 2 CYS D 50 CYS D 68 1555 1555 2.03 CRYST1 42.951 42.951 140.101 90.00 90.00 120.00 P 31 2 1 6 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 0.023282 0.013442 0.000000 0.00000 SCALE2 0.000000 0.026884 0.000000 0.00000 SCALE3 0.000000 0.000000 0.007138 0.00000