0.02090 0.00000 0.00059 0.00000 0.01833 0.00000 0.00000 0.00000 0.00970 0.00000 0.00000 0.00000 Schwartz, J.-C.D. Zhang, X. Fedorov, A.A. Nathenson, S.G. Almo, S.C. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 4 90.00 91.63 90.00 47.85 54.56 103.09 C3 H7 N O2 89.093 y ALANINE L-peptide linking C6 H15 N4 O2 1 175.209 y ARGININE L-peptide linking C4 H8 N2 O3 132.118 y ASPARAGINE L-peptide linking C4 H7 N O4 133.103 y ASPARTIC ACID L-peptide linking C3 H7 N O2 S 121.158 y CYSTEINE L-peptide linking C5 H10 N2 O3 146.144 y GLUTAMINE L-peptide linking C5 H9 N O4 147.129 y GLUTAMIC ACID L-peptide linking C2 H5 N O2 75.067 y GLYCINE peptide linking C6 H10 N3 O2 1 156.162 y HISTIDINE L-peptide linking C6 H13 N O2 131.173 y ISOLEUCINE L-peptide linking C6 H13 N O2 131.173 y LEUCINE L-peptide linking C6 H15 N2 O2 1 147.195 y LYSINE L-peptide linking C5 H11 N O2 S 149.211 y METHIONINE L-peptide linking C9 H11 N O2 165.189 y PHENYLALANINE L-peptide linking C5 H9 N O2 115.130 y PROLINE L-peptide linking C3 H7 N O3 105.093 y SERINE L-peptide linking C4 H9 N O3 119.119 y THREONINE L-peptide linking C11 H12 N2 O2 204.225 y TRYPTOPHAN L-peptide linking C9 H11 N O3 181.189 y TYROSINE L-peptide linking C5 H11 N O2 117.146 y VALINE L-peptide linking UK Nature NATUAS 0006 0028-0836 410 604 608 10.1038/35069112 11279501 Structural basis for co-stimulation by the human CTLA-4/B7-2 complex. 2001 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 100 1 CCD 2000-01-01 ADSC QUANTUM 4 NULL SINGLE WAVELENGTH M x-ray 1 0.9800 1.0 X9B NSLS 0.9800 SYNCHROTRON NSLS BEAMLINE X9B 12849.631 T LYMPHOCYTE ACTIVATION ANTIGEN CD86 IG V-TYPE (RECEPTOR BINDING) DOMAIN 2 man polymer 13510.340 CYTOTOXIC T-LYMPHOCYTE-ASSOCIATED PROTEIN 4 EXTRACELLULAR DOMAIN 2 man polymer B7-2 CTLA-4 no no MLKIQAYFNETADLPCQFANSQNQSLSELVVFWQDQENLVLNEVYLGKEKFDSVHSKYMGRTSFDSDSWTLRLHNLQIKD KGLYQCIIHHKKPTGMIRIHQMNSELSVLA MLKIQAYFNETADLPCQFANSQNQSLSELVVFWQDQENLVLNEVYLGKEKFDSVHSKYMGRTSFDSDSWTLRLHNLQIKD KGLYQCIIHHKKPTGMIRIHQMNSELSVLA A,B polypeptide(L) no no KAMHVAQPAVVLASSRGIASFVCEYASPGKATEVRVTVLRQADSQVTEVCAATYMMGNELTFLDDSICTGTSSGNQVNLT IQGLRAMDTGLYICKVELMYPPPYYLGIGNGTQIYVIDPEPCPDSD KAMHVAQPAVVLASSRGIASFVCEYASPGKATEVRVTVLRQADSQVTEVCAATYMMGNELTFLDDSICTGTSSGNQVNLT IQGLRAMDTGLYICKVELMYPPPYYLGIGNGTQIYVIDPEPCPDSD C,D polypeptide(L) n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n human Homo Escherichia Escherichia coli sample CD86 9606 Homo sapiens 469008 Escherichia coli BL21(DE3) BL21 (DE3) PLASMID PET3A human Homo Escherichia Escherichia coli sample CTLA4 9606 Homo sapiens 469008 Escherichia coli BL21(DE3) BL21 (DE3) PLASMID PET3A 1 2.59 52 VAPOR DIFFUSION, HANGING DROP 7.0 PEG20K, HEPES, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K 298 repository Initial release Version format compliance Version format compliance 1 0 2001-04-04 1 1 2008-04-27 1 2 2011-07-13 RCSB Y RCSB 2001-03-12 REL MET 0 n 1 MET 0 A LEU 1 n 2 LEU 1 A LYS 2 n 3 LYS 2 A ILE 3 n 4 ILE 3 A GLN 4 n 5 GLN 4 A ALA 5 n 6 ALA 5 A TYR 6 n 7 TYR 6 A PHE 7 n 8 PHE 7 A ASN 8 n 9 ASN 8 A GLU 9 n 10 GLU 9 A THR 10 n 11 THR 10 A ALA 11 n 12 ALA 11 A ASP 12 n 13 ASP 12 A LEU 13 n 14 LEU 13 A PRO 14 n 15 PRO 14 A CYS 15 n 16 CYS 15 A GLN 16 n 17 GLN 16 A PHE 17 n 18 PHE 17 A ALA 18 n 19 ALA 18 A ASN 19 n 20 ASN 19 A SER 20 n 21 SER 20 A GLN 21 n 22 GLN 21 A ASN 22 n 23 ASN 22 A GLN 23 n 24 GLN 23 A SER 24 n 25 SER 24 A LEU 25 n 26 LEU 25 A SER 26 n 27 SER 26 A GLU 27 n 28 GLU 27 A LEU 28 n 29 LEU 28 A VAL 29 n 30 VAL 29 A VAL 30 n 31 VAL 30 A PHE 31 n 32 PHE 31 A TRP 32 n 33 TRP 32 A GLN 33 n 34 GLN 33 A ASP 34 n 35 ASP 34 A GLN 35 n 36 GLN 35 A GLU 36 n 37 GLU 36 A ASN 37 n 38 ASN 37 A LEU 38 n 39 LEU 38 A VAL 39 n 40 VAL 39 A LEU 40 n 41 LEU 40 A ASN 41 n 42 ASN 41 A GLU 42 n 43 GLU 42 A VAL 43 n 44 VAL 43 A TYR 44 n 45 TYR 44 A LEU 45 n 46 LEU 45 A GLY 46 n 47 GLY 46 A LYS 47 n 48 LYS 47 A GLU 48 n 49 GLU 48 A LYS 49 n 50 LYS 49 A PHE 50 n 51 PHE 50 A ASP 51 n 52 ASP 51 A SER 52 n 53 SER 52 A VAL 53 n 54 VAL 53 A HIS 54 n 55 HIS 54 A SER 55 n 56 SER 55 A LYS 56 n 57 LYS 56 A TYR 57 n 58 TYR 57 A MET 58 n 59 MET 58 A GLY 59 n 60 GLY 59 A ARG 60 n 61 ARG 60 A THR 61 n 62 THR 61 A SER 62 n 63 SER 62 A PHE 63 n 64 PHE 63 A ASP 64 n 65 ASP 64 A SER 65 n 66 SER 65 A ASP 66 n 67 ASP 66 A SER 67 n 68 SER 67 A TRP 68 n 69 TRP 68 A THR 69 n 70 THR 69 A LEU 70 n 71 LEU 70 A ARG 71 n 72 ARG 71 A LEU 72 n 73 LEU 72 A HIS 73 n 74 HIS 73 A ASN 74 n 75 ASN 74 A LEU 75 n 76 LEU 75 A GLN 76 n 77 GLN 76 A ILE 77 n 78 ILE 77 A LYS 78 n 79 LYS 78 A ASP 79 n 80 ASP 79 A LYS 80 n 81 LYS 80 A GLY 81 n 82 GLY 81 A LEU 82 n 83 LEU 82 A TYR 83 n 84 TYR 83 A GLN 84 n 85 GLN 84 A CYS 85 n 86 CYS 85 A ILE 86 n 87 ILE 86 A ILE 87 n 88 ILE 87 A HIS 88 n 89 HIS 88 A HIS 89 n 90 HIS 89 A LYS 90 n 91 LYS 90 A LYS 91 n 92 LYS 91 A PRO 92 n 93 PRO 92 A THR 93 n 94 THR 93 A GLY 94 n 95 GLY 94 A MET 95 n 96 MET 95 A ILE 96 n 97 ILE 96 A ARG 97 n 98 ARG 97 A ILE 98 n 99 ILE 98 A HIS 99 n 100 HIS 99 A GLN 100 n 101 GLN 100 A MET 101 n 102 MET 101 A ASN 102 n 103 ASN 102 A SER 103 n 104 SER 103 A GLU 104 n 105 GLU 104 A LEU 105 n 106 LEU 105 A SER 106 n 107 SER 106 A VAL 107 n 108 VAL 107 A LEU 108 n 109 LEU 108 A ALA 109 n 110 ALA 109 A n 1 0 B LEU 1 n 2 LEU 1 B LYS 2 n 3 LYS 2 B ILE 3 n 4 ILE 3 B GLN 4 n 5 GLN 4 B ALA 5 n 6 ALA 5 B TYR 6 n 7 TYR 6 B PHE 7 n 8 PHE 7 B ASN 8 n 9 ASN 8 B GLU 9 n 10 GLU 9 B THR 10 n 11 THR 10 B ALA 11 n 12 ALA 11 B ASP 12 n 13 ASP 12 B LEU 13 n 14 LEU 13 B PRO 14 n 15 PRO 14 B CYS 15 n 16 CYS 15 B GLN 16 n 17 GLN 16 B PHE 17 n 18 PHE 17 B ALA 18 n 19 ALA 18 B ASN 19 n 20 ASN 19 B SER 20 n 21 SER 20 B GLN 21 n 22 GLN 21 B ASN 22 n 23 ASN 22 B GLN 23 n 24 GLN 23 B SER 24 n 25 SER 24 B LEU 25 n 26 LEU 25 B SER 26 n 27 SER 26 B GLU 27 n 28 GLU 27 B LEU 28 n 29 LEU 28 B VAL 29 n 30 VAL 29 B VAL 30 n 31 VAL 30 B PHE 31 n 32 PHE 31 B TRP 32 n 33 TRP 32 B GLN 33 n 34 GLN 33 B ASP 34 n 35 ASP 34 B GLN 35 n 36 GLN 35 B GLU 36 n 37 GLU 36 B ASN 37 n 38 ASN 37 B LEU 38 n 39 LEU 38 B VAL 39 n 40 VAL 39 B LEU 40 n 41 LEU 40 B ASN 41 n 42 ASN 41 B GLU 42 n 43 GLU 42 B VAL 43 n 44 VAL 43 B TYR 44 n 45 TYR 44 B LEU 45 n 46 LEU 45 B GLY 46 n 47 GLY 46 B LYS 47 n 48 LYS 47 B GLU 48 n 49 GLU 48 B LYS 49 n 50 LYS 49 B PHE 50 n 51 PHE 50 B ASP 51 n 52 ASP 51 B SER 52 n 53 SER 52 B VAL 53 n 54 VAL 53 B HIS 54 n 55 HIS 54 B SER 55 n 56 SER 55 B LYS 56 n 57 LYS 56 B TYR 57 n 58 TYR 57 B MET 58 n 59 MET 58 B GLY 59 n 60 GLY 59 B ARG 60 n 61 ARG 60 B THR 61 n 62 THR 61 B SER 62 n 63 SER 62 B PHE 63 n 64 PHE 63 B ASP 64 n 65 ASP 64 B SER 65 n 66 SER 65 B ASP 66 n 67 ASP 66 B SER 67 n 68 SER 67 B TRP 68 n 69 TRP 68 B THR 69 n 70 THR 69 B LEU 70 n 71 LEU 70 B ARG 71 n 72 ARG 71 B LEU 72 n 73 LEU 72 B HIS 73 n 74 HIS 73 B ASN 74 n 75 ASN 74 B LEU 75 n 76 LEU 75 B GLN 76 n 77 GLN 76 B ILE 77 n 78 ILE 77 B LYS 78 n 79 LYS 78 B ASP 79 n 80 ASP 79 B LYS 80 n 81 LYS 80 B GLY 81 n 82 GLY 81 B LEU 82 n 83 LEU 82 B TYR 83 n 84 TYR 83 B GLN 84 n 85 GLN 84 B CYS 85 n 86 CYS 85 B ILE 86 n 87 ILE 86 B ILE 87 n 88 ILE 87 B HIS 88 n 89 HIS 88 B HIS 89 n 90 HIS 89 B LYS 90 n 91 LYS 90 B LYS 91 n 92 LYS 91 B PRO 92 n 93 PRO 92 B THR 93 n 94 THR 93 B GLY 94 n 95 GLY 94 B MET 95 n 96 MET 95 B ILE 96 n 97 ILE 96 B ARG 97 n 98 ARG 97 B ILE 98 n 99 ILE 98 B HIS 99 n 100 HIS 99 B GLN 100 n 101 GLN 100 B MET 101 n 102 MET 101 B ASN 102 n 103 ASN 102 B SER 103 n 104 SER 103 B GLU 104 n 105 GLU 104 B LEU 105 n 106 LEU 105 B SER 106 n 107 SER 106 B VAL 107 n 108 VAL 107 B LEU 108 n 109 LEU 108 B ALA 109 n 110 ALA 109 B n 1 1 C n 2 2 C MET 3 n 3 MET 3 C HIS 4 n 4 HIS 4 C VAL 5 n 5 VAL 5 C ALA 6 n 6 ALA 6 C GLN 7 n 7 GLN 7 C PRO 8 n 8 PRO 8 C ALA 9 n 9 ALA 9 C VAL 10 n 10 VAL 10 C VAL 11 n 11 VAL 11 C LEU 12 n 12 LEU 12 C ALA 13 n 13 ALA 13 C SER 14 n 14 SER 14 C SER 15 n 15 SER 15 C ARG 16 n 16 ARG 16 C GLY 17 n 17 GLY 17 C ILE 18 n 18 ILE 18 C ALA 19 n 19 ALA 19 C SER 20 n 20 SER 20 C PHE 21 n 21 PHE 21 C VAL 22 n 22 VAL 22 C CYS 23 n 23 CYS 23 C GLU 24 n 24 GLU 24 C TYR 25 n 25 TYR 25 C ALA 26 n 26 ALA 26 C SER 27 n 27 SER 27 C PRO 28 n 28 PRO 28 C GLY 29 n 29 GLY 29 C LYS 30 n 30 LYS 30 C ALA 31 n 31 ALA 31 C THR 32 n 32 THR 32 C GLU 33 n 33 GLU 33 C VAL 34 n 34 VAL 34 C ARG 35 n 35 ARG 35 C VAL 36 n 36 VAL 36 C THR 37 n 37 THR 37 C VAL 38 n 38 VAL 38 C LEU 39 n 39 LEU 39 C ARG 40 n 40 ARG 40 C GLN 41 n 41 GLN 41 C ALA 42 n 42 ALA 42 C ASP 43 n 43 ASP 43 C SER 44 n 44 SER 44 C GLN 45 n 45 GLN 45 C VAL 46 n 46 VAL 46 C THR 47 n 47 THR 47 C GLU 48 n 48 GLU 48 C VAL 49 n 49 VAL 49 C CYS 50 n 50 CYS 50 C ALA 51 n 51 ALA 51 C ALA 52 n 52 ALA 52 C THR 53 n 53 THR 53 C TYR 54 n 54 TYR 54 C MET 55 n 55 MET 55 C MET 56 n 56 MET 56 C GLY 57 n 57 GLY 57 C ASN 58 n 58 ASN 58 C GLU 59 n 59 GLU 59 C LEU 60 n 60 LEU 60 C THR 61 n 61 THR 61 C PHE 62 n 62 PHE 62 C LEU 63 n 63 LEU 63 C ASP 64 n 64 ASP 64 C ASP 65 n 65 ASP 65 C SER 66 n 66 SER 66 C ILE 67 n 67 ILE 67 C CYS 68 n 68 CYS 68 C THR 69 n 69 THR 69 C GLY 70 n 70 GLY 70 C THR 71 n 71 THR 71 C SER 72 n 72 SER 72 C SER 73 n 73 SER 73 C GLY 74 n 74 GLY 74 C ASN 75 n 75 ASN 75 C GLN 76 n 76 GLN 76 C VAL 77 n 77 VAL 77 C ASN 78 n 78 ASN 78 C LEU 79 n 79 LEU 79 C THR 80 n 80 THR 80 C ILE 81 n 81 ILE 81 C GLN 82 n 82 GLN 82 C GLY 83 n 83 GLY 83 C LEU 84 n 84 LEU 84 C ARG 85 n 85 ARG 85 C ALA 86 n 86 ALA 86 C MET 87 n 87 MET 87 C ASP 88 n 88 ASP 88 C THR 89 n 89 THR 89 C GLY 90 n 90 GLY 90 C LEU 91 n 91 LEU 91 C TYR 92 n 92 TYR 92 C ILE 93 n 93 ILE 93 C CYS 94 n 94 CYS 94 C LYS 95 n 95 LYS 95 C VAL 96 n 96 VAL 96 C GLU 97 n 97 GLU 97 C LEU 98 n 98 LEU 98 C MET 99 n 99 MET 99 C TYR 100 n 100 TYR 100 C PRO 101 n 101 PRO 101 C PRO 102 n 102 PRO 102 C PRO 103 n 103 PRO 103 C TYR 104 n 104 TYR 104 C TYR 105 n 105 TYR 105 C LEU 106 n 106 LEU 106 C GLY 107 n 107 GLY 107 C ILE 108 n 108 ILE 108 C GLY 109 n 109 GLY 109 C ASN 110 n 110 ASN 110 C GLY 111 n 111 GLY 111 C ALA 112 n 112 THR 112 C GLN 113 n 113 GLN 113 C ILE 114 n 114 ILE 114 C TYR 115 n 115 TYR 115 C VAL 116 n 116 VAL 116 C ILE 117 n 117 ILE 117 C ASP 118 n 118 ASP 118 C PRO 119 n 119 PRO 119 C GLU 120 n 120 GLU 120 C n 121 121 C n 122 122 C n 123 123 C n 124 124 C n 125 125 C n 126 126 C n 1 1 D n 2 2 D MET 3 n 3 MET 3 D HIS 4 n 4 HIS 4 D VAL 5 n 5 VAL 5 D ALA 6 n 6 ALA 6 D GLN 7 n 7 GLN 7 D PRO 8 n 8 PRO 8 D ALA 9 n 9 ALA 9 D VAL 10 n 10 VAL 10 D VAL 11 n 11 VAL 11 D LEU 12 n 12 LEU 12 D ALA 13 n 13 ALA 13 D SER 14 n 14 SER 14 D SER 15 n 15 SER 15 D ARG 16 n 16 ARG 16 D GLY 17 n 17 GLY 17 D ILE 18 n 18 ILE 18 D ALA 19 n 19 ALA 19 D SER 20 n 20 SER 20 D PHE 21 n 21 PHE 21 D VAL 22 n 22 VAL 22 D CYS 23 n 23 CYS 23 D GLU 24 n 24 GLU 24 D TYR 25 n 25 TYR 25 D ALA 26 n 26 ALA 26 D n 27 27 D n 28 28 D n 29 29 D n 30 30 D ALA 31 n 31 ALA 31 D THR 32 n 32 THR 32 D GLU 33 n 33 GLU 33 D VAL 34 n 34 VAL 34 D ARG 35 n 35 ARG 35 D VAL 36 n 36 VAL 36 D THR 37 n 37 THR 37 D VAL 38 n 38 VAL 38 D LEU 39 n 39 LEU 39 D ARG 40 n 40 ARG 40 D GLN 41 n 41 GLN 41 D n 42 42 D n 43 43 D n 44 44 D GLN 45 n 45 GLN 45 D VAL 46 n 46 VAL 46 D THR 47 n 47 THR 47 D GLU 48 n 48 GLU 48 D VAL 49 n 49 VAL 49 D CYS 50 n 50 CYS 50 D ALA 51 n 51 ALA 51 D ALA 52 n 52 ALA 52 D THR 53 n 53 THR 53 D TYR 54 n 54 TYR 54 D MET 55 n 55 MET 55 D MET 56 n 56 MET 56 D GLY 57 n 57 GLY 57 D ASN 58 n 58 ASN 58 D GLU 59 n 59 GLU 59 D LEU 60 n 60 LEU 60 D THR 61 n 61 THR 61 D PHE 62 n 62 PHE 62 D LEU 63 n 63 LEU 63 D ASP 64 n 64 ASP 64 D ASP 65 n 65 ASP 65 D SER 66 n 66 SER 66 D ILE 67 n 67 ILE 67 D CYS 68 n 68 CYS 68 D THR 69 n 69 THR 69 D GLY 70 n 70 GLY 70 D THR 71 n 71 THR 71 D SER 72 n 72 SER 72 D SER 73 n 73 SER 73 D GLY 74 n 74 GLY 74 D ASN 75 n 75 ASN 75 D GLN 76 n 76 GLN 76 D VAL 77 n 77 VAL 77 D ASN 78 n 78 ASN 78 D LEU 79 n 79 LEU 79 D THR 80 n 80 THR 80 D ILE 81 n 81 ILE 81 D GLN 82 n 82 GLN 82 D GLY 83 n 83 GLY 83 D LEU 84 n 84 LEU 84 D ARG 85 n 85 ARG 85 D ALA 86 n 86 ALA 86 D MET 87 n 87 MET 87 D ASP 88 n 88 ASP 88 D THR 89 n 89 THR 89 D GLY 90 n 90 GLY 90 D LEU 91 n 91 LEU 91 D TYR 92 n 92 TYR 92 D ILE 93 n 93 ILE 93 D CYS 94 n 94 CYS 94 D LYS 95 n 95 LYS 95 D VAL 96 n 96 VAL 96 D GLU 97 n 97 GLU 97 D LEU 98 n 98 LEU 98 D MET 99 n 99 MET 99 D TYR 100 n 100 TYR 100 D PRO 101 n 101 PRO 101 D PRO 102 n 102 PRO 102 D PRO 103 n 103 PRO 103 D TYR 104 n 104 TYR 104 D TYR 105 n 105 TYR 105 D LEU 106 n 106 LEU 106 D GLY 107 n 107 GLY 107 D ILE 108 n 108 ILE 108 D GLY 109 n 109 GLY 109 D ASN 110 n 110 ASN 110 D GLY 111 n 111 GLY 111 D ALA 112 n 112 THR 112 D GLN 113 n 113 GLN 113 D ILE 114 n 114 ILE 114 D TYR 115 n 115 TYR 115 D VAL 116 n 116 VAL 116 D ILE 117 n 117 ILE 117 D ASP 118 n 118 ASP 118 D PRO 119 n 119 PRO 119 D GLU 120 n 120 GLU 120 D n 121 121 D n 122 122 D n 123 123 D n 124 124 D n 125 125 D n 126 126 D author_defined_assembly 4 tetrameric 1.0000000000 0.0000000000 0.0000000000 0.0000000000 1.0000000000 0.0000000000 0.0000000000 0.0000000000 1.0000000000 1_555 x,y,z identity operation 0.0000000000 0.0000000000 0.0000000000 A N ILE 3 A N ILE 4 A O GLU 104 A O GLU 105 A O SER 103 A O SER 104 A N TYR 83 A N TYR 84 A N HIS 88 A N HIS 89 A O VAL 29 A O VAL 30 A O TRP 32 A O TRP 33 A N LEU 40 A N LEU 41 A N LEU 13 A N LEU 14 A O LEU 70 A O LEU 71 A N ARG 71 A N ARG 72 A O SER 62 A O SER 63 B N ILE 3 B N ILE 4 B O GLU 104 B O GLU 105 B O SER 103 B O SER 104 B N TYR 83 B N TYR 84 B N HIS 88 B N HIS 89 B O VAL 29 B O VAL 30 B O TRP 32 B O TRP 33 B N LEU 40 B N LEU 41 B O TYR 44 B O TYR 45 B N LYS 47 B N LYS 48 B O ALA 11 B O ALA 12 B N LEU 72 B N LEU 73 B O ARG 71 B O ARG 72 B N SER 62 B N SER 63 C O ALA 6 C O ALA 6 C N GLU 24 C N GLU 24 C O CYS 23 C O CYS 23 C N VAL 77 C N VAL 77 C N ASN 78 C N ASN 78 C O THR 71 C O THR 71 C N VAL 11 C N VAL 11 C O GLN 113 C O GLN 113 C N ILE 114 C N ILE 114 C O GLY 90 C O GLY 90 C N TYR 54 C N TYR 54 C O VAL 34 C O VAL 34 C N THR 37 C N THR 37 C O LYS 95 C O LYS 95 C N VAL 96 C N VAL 96 C O GLY 107 C O GLY 107 D O ALA 6 D O ALA 6 D N GLU 24 D N GLU 24 D N CYS 23 D N CYS 23 D O VAL 77 D O VAL 77 D N ASN 78 D N ASN 78 D O THR 71 D O THR 71 D N VAL 11 D N VAL 11 D O GLN 113 D O GLN 113 D N ILE 114 D N ILE 114 D O GLY 90 D O GLY 90 D O CYS 50 D O CYS 50 D N VAL 38 D N VAL 38 D O THR 37 D O THR 37 D N LYS 95 D N LYS 95 D N VAL 96 D N VAL 96 D O GLY 107 D O GLY 107 1 C OG1 THR 112 C OG1 THR 112 1 Y 1 C CG2 THR 112 C CG2 THR 112 1 Y 1 D OG1 THR 112 D OG1 THR 112 1 Y 1 D CG2 THR 112 D CG2 THR 112 1 Y 1 B MET 0 B MET 1 1 Y 1 C LYS 1 C LYS 1 1 Y 1 C ALA 2 C ALA 2 1 Y 1 C PRO 121 C PRO 121 1 Y 1 C CYS 122 C CYS 122 1 Y 1 C PRO 123 C PRO 123 1 Y 1 C ASP 124 C ASP 124 1 Y 1 C SER 125 C SER 125 1 Y 1 C ASP 126 C ASP 126 1 Y 1 D LYS 1 D LYS 1 1 Y 1 D ALA 2 D ALA 2 1 Y 1 D SER 27 D SER 27 1 Y 1 D PRO 28 D PRO 28 1 Y 1 D GLY 29 D GLY 29 1 Y 1 D LYS 30 D LYS 30 1 Y 1 D ALA 42 D ALA 42 1 Y 1 D ASP 43 D ASP 43 1 Y 1 D SER 44 D SER 44 1 Y 1 D PRO 121 D PRO 121 1 Y 1 D CYS 122 D CYS 122 1 Y 1 D PRO 123 D PRO 123 1 Y 1 D ASP 124 D ASP 124 1 Y 1 D SER 125 D SER 125 1 Y 1 D ASP 126 D ASP 126 1 Y 1 D D O N VAL ASP 116 118 2.19 1 A LEU 1 167.41 91.52 1 A GLU 9 -101.47 -160.08 1 A GLN 16 60.64 -3.64 1 A ASN 19 -24.86 122.36 1 A GLN 21 -84.58 42.86 1 A ASN 22 9.34 99.15 1 A LEU 25 -50.71 -0.89 1 A GLU 27 -95.61 32.46 1 A LEU 40 -86.73 -82.95 1 A LEU 45 25.96 31.97 1 A ARG 60 -166.38 46.55 1 A SER 62 -164.91 113.31 1 A SER 65 -48.06 -11.11 1 A TRP 68 60.08 -8.68 1 A THR 69 -62.40 -175.56 1 A LYS 80 -49.38 94.56 1 A LYS 90 -59.56 94.65 1 B GLN 16 66.35 -10.30 1 B PHE 17 -49.64 160.20 1 B ALA 18 -153.24 65.52 1 B ASN 19 -17.29 116.87 1 B SER 20 -103.66 -61.34 1 B GLN 21 -80.79 42.43 1 B ASN 22 12.54 100.62 1 B LEU 25 -62.34 3.22 1 B ASP 34 -102.79 -160.14 1 B LEU 40 -90.03 -81.66 1 B LEU 45 25.64 33.61 1 B ASP 51 -38.88 -37.55 1 B ARG 60 -153.89 43.37 1 B SER 62 -172.40 140.49 1 B TRP 68 51.47 11.65 1 B LEU 70 -166.02 103.32 1 B ASN 74 34.34 74.27 1 B LYS 80 -55.88 95.74 1 B LYS 90 -58.96 85.40 1 B GLN 100 -162.03 114.91 1 C LYS 30 173.96 139.75 1 C ALA 31 -34.37 131.41 1 C ARG 40 -177.68 124.44 1 C ALA 42 -91.02 -103.55 1 C SER 44 -175.61 -12.59 1 C MET 55 -63.54 -171.11 1 C ASP 64 -35.34 -37.11 1 C SER 66 -56.50 -144.76 1 C SER 73 -174.39 84.69 1 C ASN 75 60.61 -23.84 1 C THR 89 -22.83 113.93 1 C MET 99 -67.65 -153.75 1 C TYR 104 -67.33 -168.75 1 C TYR 105 171.30 105.73 1 C ILE 117 -36.96 70.03 1 C ASP 118 179.81 81.91 1 D HIS 4 -172.00 107.61 1 D THR 32 -150.70 -34.31 1 D ARG 40 -169.35 118.87 1 D MET 55 -68.55 -163.55 1 D THR 61 -121.81 -68.17 1 D PHE 62 58.11 76.95 1 D LEU 63 41.40 -105.85 1 D ASP 64 -176.28 -20.47 1 D SER 73 -167.26 78.73 1 D ASN 75 62.16 -48.03 1 D THR 89 -30.84 130.26 1 D MET 99 -64.05 -158.45 1 D TYR 104 -67.25 -176.47 1 D TYR 105 177.74 123.50 1 D ILE 117 -41.82 76.03 1 D ASP 118 171.47 86.26 protein_rep.param protein.top 20.4 0.3 0.217 3.2 10 606 8655 6516 10 RANDOM 1 THROUGHOUT 1.2 1.4 MOLECULAR REPLACEMENT Engh & Huber 0.52 0.38 5 0.69 3.2 10 0 3515 0 0 3515 0.008 1.3 25.3 0.97 0.419 0.372 3.31 61 415 10 10 56.3 3.2 25 1I85 7080 7080 0 0 0.121 1 6.6 2.4 78.8 0.321 3.2 3.31 2.2 2.3 79.4 data reduction DENZO data scaling SCALEPACK refinement CNS phasing CNS CTLA-4/B7-2 COMPLEX CRYSTAL STRUCTURE OF THE CTLA-4/B7-2 COMPLEX 1 N N 1 N N 2 N N 2 N N The CTLA-4 homodimer is generated by Chain D and the translatonal symmetry mate of chain C (apply the operator x,y,z+1 to Chain C) The repeating arrangement of CTLA-4 and B7-2 dimers is generated by applying the translational symmetry operation (x,y,z+/-N; where N ranges over all integers) to all chains in the asymmetric unit disulf 2.034 A CYS 15 A SG CYS 16 1_555 A CYS 85 A SG CYS 86 1_555 disulf 2.025 B CYS 15 B SG CYS 16 1_555 B CYS 85 B SG CYS 86 1_555 disulf 2.029 C CYS 23 C SG CYS 23 1_555 C CYS 94 C SG CYS 94 1_555 disulf 2.021 C CYS 50 C SG CYS 50 1_555 C CYS 68 C SG CYS 68 1_555 disulf 2.021 D CYS 23 D SG CYS 23 1_555 D CYS 94 D SG CYS 94 1_555 disulf 2.043 D CYS 50 D SG CYS 50 1_555 D CYS 68 D SG CYS 68 1_555 IMMUNE SYSTEM Ig V-type domain, IMMUNE SYSTEM C TYR 100 C TYR 100 1 C PRO 101 C PRO 101 -0.55 C PRO 102 C PRO 102 1 C PRO 103 C PRO 103 0.20 D TYR 100 D TYR 100 1 D PRO 101 D PRO 101 -0.06 D PRO 102 D PRO 102 1 D PRO 103 D PRO 103 0.21 CD86_HUMAN UNP 1 26 P42081 CTLA4_HUMAN UNP 2 36 P16410 26 134 1I85 1 109 P42081 A 1 2 110 26 134 1I85 1 109 P42081 B 1 2 110 36 161 1I85 1 126 P16410 C 2 1 126 36 161 1I85 1 126 P16410 D 2 1 126 1 INITIATING METHIONINE MET 0 1I85 A P42081 UNP 1 2 INITIATING METHIONINE MET 0 1I85 B P42081 UNP 1 3 THR see remark 999 MET 56 1I85 C P16410 UNP 91 56 4 THR see remark 999 MET 56 1I85 D P16410 UNP 91 56 5 3 6 3 4 3 4 4 3 4 parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel parallel anti-parallel anti-parallel anti-parallel anti-parallel A LYS 2 A LYS 3 A TYR 6 A TYR 7 A ARG 97 A ARG 98 A LEU 108 A LEU 109 A LEU 82 A LEU 83 A HIS 88 A HIS 89 A VAL 29 A VAL 30 A GLN 33 A GLN 34 A VAL 39 A VAL 40 A VAL 43 A VAL 44 A ALA 11 A ALA 12 A LEU 13 A LEU 14 A LEU 70 A LEU 71 A LEU 72 A LEU 73 A THR 61 A THR 62 A PHE 63 A PHE 64 B LYS 2 B LYS 3 B TYR 6 B TYR 7 B ARG 97 B ARG 98 B LEU 108 B LEU 109 B LEU 82 B LEU 83 B HIS 88 B HIS 89 B VAL 29 B VAL 30 B GLN 33 B GLN 34 B VAL 39 B VAL 40 B TYR 44 B TYR 45 B LYS 47 B LYS 48 B GLU 48 B GLU 49 B ALA 11 B ALA 12 B ASP 12 B ASP 13 B LEU 70 B LEU 71 B LEU 72 B LEU 73 B THR 61 B THR 62 B PHE 63 B PHE 64 C VAL 5 C VAL 5 C ALA 6 C ALA 6 C VAL 22 C VAL 22 C TYR 25 C TYR 25 C GLN 76 C GLN 76 C ASN 78 C ASN 78 C THR 71 C THR 71 C SER 72 C SER 72 C VAL 10 C VAL 10 C LEU 12 C LEU 12 C THR 112 C THR 112 C TYR 115 C TYR 115 C GLY 90 C GLY 90 C TYR 92 C TYR 92 C CYS 50 C CYS 50 C TYR 54 C TYR 54 C VAL 34 C VAL 34 C VAL 38 C VAL 38 C CYS 94 C CYS 94 C LEU 98 C LEU 98 C LEU 106 C LEU 106 C GLY 107 C GLY 107 D VAL 5 D VAL 5 D ALA 6 D ALA 6 D VAL 22 D VAL 22 D TYR 25 D TYR 25 D GLN 76 D GLN 76 D ASN 78 D ASN 78 D THR 71 D THR 71 D SER 72 D SER 72 D VAL 10 D VAL 10 D LEU 12 D LEU 12 D THR 112 D THR 112 D TYR 115 D TYR 115 D GLY 90 D GLY 90 D TYR 92 D TYR 92 D CYS 50 D CYS 50 D ALA 51 D ALA 51 D VAL 34 D VAL 34 D VAL 38 D VAL 38 D CYS 94 D CYS 94 D LEU 98 D LEU 98 D LEU 106 D LEU 106 D ILE 108 D ILE 108 4 P 1 21 1