1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 McDonnell, J.M. Cowburn, D. Gould, H.J. Sutton, B.J. Calvert, R. Beavil, R.E. Beavil, A.J. Henry, A.J. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 1 90.00 90.00 90.00 1.000 1.000 1.000 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 US Nat.Struct.Biol. NSBIEW 2024 1072-8368 8 437 441 10.1038/87603 11323720 The structure of the IgE Cepsilon2 domain and its role in stabilizing the complex with its high-affinity receptor FcepsilonRIalpha. 2001 10.2210/pdb1g84/pdb pdb_00001g84 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 11479.578 IMMUNOGLOBULIN E C EPSILON2 C16S, C104S 1 man polymer no no SRDFTPPTVKILQSSSDGGGHFPPTIQLLCLVSGYTPGTINITWLEDGQVMDVDLSTASTTQEGELASTQSELTLSQKHW LSDRTYTCQVTYQGHTFEDSTKKSA SRDFTPPTVKILQSSSDGGGHFPPTIQLLCLVSGYTPGTINITWLEDGQVMDVDLSTASTTQEGELASTQSELTLSQKHW LSDRTYTCQVTYQGHTFEDSTKKSA A 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 human Homo Escherichia Escherichia coli sample 9606 Homo sapiens 469008 Escherichia coli BL21(DE3) BL21(DE3) database_2 pdbx_nmr_spectrometer pdbx_struct_assembly pdbx_struct_oper_list struct_ref_seq_dif repository Initial release Version format compliance Version format compliance Data collection Database references Derived calculations 1 0 2001-05-16 1 1 2007-10-21 1 2 2011-07-13 1 3 2021-10-27 _database_2.pdbx_DOI _database_2.pdbx_database_accession _pdbx_nmr_spectrometer.model _struct_ref_seq_dif.details RCSB Y RCSB 2000-11-16 REL structures with the least restraint violations 1000 15 3D_13C-separated_NOESY 3D_15N-separated_NOESY HNHA HCCH-TOCSY HNCOCA HNCA 100mM 6 1 atm 298 K structures calculated using DYANA 2mM Ce2 U-15N,13C 90% H2O/10% D2O 1.4mM Ce2 U-15N 90% H2O/10% D2O Guntert, Mumenthaler, Herrmann structure solution DYANA 1.5 Bartels, Xia, Wuthrich, et al. data analysis XEASY 1.3.13 Guntert, Mumenthaler, Herrmann refinement DYANA 1.5 600 Bruker AVANCE SER 1 n 1 SER 1 A ARG 2 n 2 ARG 2 A ASP 3 n 3 ASP 3 A PHE 4 n 4 PHE 4 A THR 5 n 5 THR 5 A PRO 6 n 6 PRO 6 A PRO 7 n 7 PRO 7 A THR 8 n 8 THR 8 A VAL 9 n 9 VAL 9 A LYS 10 n 10 LYS 10 A ILE 11 n 11 ILE 11 A LEU 12 n 12 LEU 12 A GLN 13 n 13 GLN 13 A SER 14 n 14 SER 14 A SER 15 n 15 SER 15 A SER 16 n 16 SER 16 A ASP 17 n 17 ASP 17 A GLY 18 n 18 GLY 18 A GLY 19 n 19 GLY 19 A GLY 20 n 20 GLY 20 A HIS 21 n 21 HIS 21 A PHE 22 n 22 PHE 22 A PRO 23 n 23 PRO 23 A PRO 24 n 24 PRO 24 A THR 25 n 25 THR 25 A ILE 26 n 26 ILE 26 A GLN 27 n 27 GLN 27 A LEU 28 n 28 LEU 28 A LEU 29 n 29 LEU 29 A CYS 30 n 30 CYS 30 A LEU 31 n 31 LEU 31 A VAL 32 n 32 VAL 32 A SER 33 n 33 SER 33 A GLY 34 n 34 GLY 34 A TYR 35 n 35 TYR 35 A THR 36 n 36 THR 36 A PRO 37 n 37 PRO 37 A GLY 38 n 38 GLY 38 A THR 39 n 39 THR 39 A ILE 40 n 40 ILE 40 A ASN 41 n 41 ASN 41 A ILE 42 n 42 ILE 42 A THR 43 n 43 THR 43 A TRP 44 n 44 TRP 44 A LEU 45 n 45 LEU 45 A GLU 46 n 46 GLU 46 A ASP 47 n 47 ASP 47 A GLY 48 n 48 GLY 48 A GLN 49 n 49 GLN 49 A VAL 50 n 50 VAL 50 A MET 51 n 51 MET 51 A ASP 52 n 52 ASP 52 A VAL 53 n 53 VAL 53 A ASP 54 n 54 ASP 54 A LEU 55 n 55 LEU 55 A SER 56 n 56 SER 56 A THR 57 n 57 THR 57 A ALA 58 n 58 ALA 58 A SER 59 n 59 SER 59 A THR 60 n 60 THR 60 A THR 61 n 61 THR 61 A GLN 62 n 62 GLN 62 A GLU 63 n 63 GLU 63 A GLY 64 n 64 GLY 64 A GLU 65 n 65 GLU 65 A LEU 66 n 66 LEU 66 A ALA 67 n 67 ALA 67 A SER 68 n 68 SER 68 A THR 69 n 69 THR 69 A GLN 70 n 70 GLN 70 A SER 71 n 71 SER 71 A GLU 72 n 72 GLU 72 A LEU 73 n 73 LEU 73 A THR 74 n 74 THR 74 A LEU 75 n 75 LEU 75 A SER 76 n 76 SER 76 A GLN 77 n 77 GLN 77 A LYS 78 n 78 LYS 78 A HIS 79 n 79 HIS 79 A TRP 80 n 80 TRP 80 A LEU 81 n 81 LEU 81 A SER 82 n 82 SER 82 A ASP 83 n 83 ASP 83 A ARG 84 n 84 ARG 84 A THR 85 n 85 THR 85 A TYR 86 n 86 TYR 86 A THR 87 n 87 THR 87 A CYS 88 n 88 CYS 88 A GLN 89 n 89 GLN 89 A VAL 90 n 90 VAL 90 A THR 91 n 91 THR 91 A TYR 92 n 92 TYR 92 A GLN 93 n 93 GLN 93 A GLY 94 n 94 GLY 94 A HIS 95 n 95 HIS 95 A THR 96 n 96 THR 96 A PHE 97 n 97 PHE 97 A GLU 98 n 98 GLU 98 A ASP 99 n 99 ASP 99 A SER 100 n 100 SER 100 A THR 101 n 101 THR 101 A LYS 102 n 102 LYS 102 A LYS 103 n 103 LYS 103 A SER 104 n 104 SER 104 A ALA 105 n 105 ALA 105 A author_defined_assembly 1 monomeric 1.0000000000 0.0000000000 0.0000000000 0.0000000000 1.0000000000 0.0000000000 0.0000000000 0.0000000000 1.0000000000 1_555 identity operation 0.0000000000 0.0000000000 0.0000000000 A O SER 14 A O SER 14 A N GLN 27 A N GLN 27 A O VAL 32 A O VAL 32 A N THR 69 A N THR 69 A N THR 74 A N THR 74 A O LEU 55 A O LEU 55 A N ASP 47 A N ASP 47 A O THR 85 A O THR 85 A N TYR 92 A N TYR 92 A O HIS 95 A O HIS 95 1 A A HA HB3 THR SER 87 100 1.22 1 A A O H THR GLU 57 72 1.51 1 A A H O SER GLN 59 70 1.52 1 A A OG1 O THR SER 61 68 1.96 2 A A HA HB3 THR SER 87 100 1.28 2 A A HA HB2 THR SER 87 100 1.30 2 A A HA CB THR SER 87 100 1.46 2 A A OG1 O THR SER 61 68 2.06 3 A A HA HB3 THR SER 87 100 1.20 3 A A HG1 O THR SER 61 68 1.42 3 A A H O SER GLN 59 70 1.57 3 A A O H THR GLU 57 72 1.57 3 A A OG1 O THR SER 61 68 2.13 4 A A HA HB2 THR SER 87 100 1.26 4 A A HA CB THR SER 87 100 1.36 4 A A H O ASN THR 41 91 1.50 4 A A HB O ILE THR 40 91 1.50 4 A A O H PRO GLN 24 77 1.54 4 A A OG1 O THR SER 61 68 1.98 4 A A O OH VAL TYR 32 35 2.17 5 A A HA HB2 THR SER 87 100 1.21 5 A A HZ3 HXT LYS ALA 103 105 1.31 5 A A HA CB THR SER 87 100 1.47 5 A A OG1 HG1 THR THR 39 69 1.49 5 A A O H PRO GLN 24 77 1.50 5 A A H O LYS LEU 10 31 1.51 5 A A O H THR GLU 57 72 1.53 5 A A H O SER GLN 59 70 1.57 5 A A OG1 O THR SER 61 68 2.05 5 A A O O TRP SER 80 104 2.19 6 A A HA HB2 THR SER 87 100 1.30 6 A A HA CB THR SER 87 100 1.42 6 A A OG1 HG1 THR THR 39 69 1.50 6 A A O H PRO GLN 24 77 1.54 6 A A O H VAL ASP 50 52 1.57 6 A A OG1 O THR SER 61 68 2.06 7 A A HA HB2 THR SER 87 100 1.22 7 A A HA CB THR SER 87 100 1.42 7 A A H O SER GLN 59 70 1.52 7 A A O H THR GLU 57 72 1.55 7 A A O H PRO GLN 24 77 1.55 7 A A HB O ILE THR 40 91 1.56 7 A A OG1 HG1 THR THR 39 69 1.58 7 A A OG1 O THR SER 61 68 2.01 8 A A HA HB2 THR SER 87 100 1.23 8 A A HH O TYR LYS 86 103 1.41 8 A A HA CB THR SER 87 100 1.43 8 A A O H VAL ASP 50 52 1.53 8 A A O H PRO GLN 24 77 1.57 8 A A O H THR GLU 57 72 1.59 8 A A H O SER GLN 59 70 1.60 8 A A OG1 O THR SER 61 68 2.06 8 A A O O VAL THR 32 69 2.19 9 A A HG HH21 SER ARG 82 84 0.93 9 A A HA HB3 THR SER 87 100 1.17 9 A A O H THR GLU 57 72 1.51 9 A A H O SER GLN 59 70 1.54 10 A A HA HB2 THR SER 87 100 1.17 10 A A HA CB THR SER 87 100 1.42 10 A A O H PRO GLN 24 77 1.55 11 A A HB3 HH21 SER ARG 82 84 1.31 11 A A HA HB2 THR SER 87 100 1.32 11 A A HA HB3 THR SER 87 100 1.34 11 A A HG1 O THR SER 61 68 1.49 11 A A O H THR GLU 57 72 1.53 11 A A OG1 O THR SER 61 68 2.06 11 A A O OG TYR SER 86 100 2.19 12 A A HA HB3 THR SER 87 100 1.18 12 A A HA CB THR SER 87 100 1.59 13 A A HG1 O THR SER 61 68 1.14 13 A A HA HB2 THR SER 87 100 1.22 13 A A HA CB THR SER 87 100 1.47 13 A A HB O ILE THR 40 91 1.51 13 A A O H THR GLU 57 72 1.52 13 A A H O SER GLN 59 70 1.59 13 A A OG1 O THR SER 61 68 2.11 14 A A HA HB2 THR SER 87 100 1.22 14 A A HA CB THR SER 87 100 1.46 14 A A O H THR GLU 57 72 1.51 14 A A O HG1 SER THR 68 69 1.57 14 A A HB O ILE THR 40 91 1.58 14 A A O H MET VAL 51 53 1.59 15 A A HE1 HZ3 TRP LYS 80 103 0.97 15 A A HA HB2 THR SER 87 100 1.24 15 A A HA CB THR SER 87 100 1.43 15 A A O H PRO GLN 24 77 1.54 15 A A O H THR GLU 57 72 1.54 15 A A H O SER GLN 59 70 1.54 1 A ARG 2 -167.15 79.13 1 A PHE 4 58.36 -176.84 1 A ASP 17 -140.51 13.02 1 A HIS 21 64.53 178.99 1 A PHE 22 57.68 148.58 1 A THR 36 50.18 144.93 1 A THR 39 159.20 171.27 1 A ILE 40 -111.75 -139.38 1 A GLN 49 167.61 86.52 1 A VAL 50 -85.23 43.68 1 A ASP 52 -64.11 -151.13 1 A ASP 83 66.88 151.46 1 A ARG 84 -173.11 -173.87 1 A SER 100 -166.52 -142.01 2 A PHE 4 76.94 173.54 2 A SER 16 -155.88 77.90 2 A ASP 17 -38.38 155.56 2 A HIS 21 71.09 112.58 2 A PHE 22 56.15 158.82 2 A THR 36 49.56 139.64 2 A THR 39 95.12 -168.24 2 A ILE 40 -128.47 -142.23 2 A GLN 49 172.14 101.49 2 A MET 51 -65.77 -155.68 2 A ASP 83 69.10 149.14 2 A SER 100 -171.82 -143.27 2 A LYS 102 -169.38 -157.02 2 A LYS 103 59.10 -174.71 2 A SER 104 -104.87 -124.36 3 A ARG 2 174.11 173.52 3 A ASP 3 52.11 176.86 3 A PHE 4 85.74 158.57 3 A ASP 17 176.78 171.61 3 A GLN 27 -118.19 77.70 3 A THR 36 51.48 139.56 3 A THR 39 88.58 -168.11 3 A ILE 40 -125.94 -139.92 3 A GLN 49 64.33 96.74 3 A VAL 50 -86.06 43.55 3 A ASP 52 -65.89 -154.73 3 A ASP 83 70.10 146.72 3 A ARG 84 177.58 175.02 3 A SER 100 -167.02 -141.84 3 A LYS 102 -171.43 137.17 3 A SER 104 -149.39 18.83 4 A ARG 2 35.68 -136.95 4 A ASP 3 57.66 157.40 4 A PHE 4 56.67 95.91 4 A PRO 7 -74.97 -94.83 4 A THR 8 -171.14 149.94 4 A ASP 17 178.55 160.10 4 A THR 36 43.58 158.22 4 A THR 39 155.02 169.86 4 A ILE 40 -98.45 -147.95 4 A GLN 49 75.54 97.06 4 A ASP 83 68.42 146.21 4 A SER 100 -169.61 -152.92 4 A SER 104 -147.95 16.45 5 A PHE 4 81.61 156.85 5 A SER 15 -126.40 -59.88 5 A HIS 21 66.18 -83.64 5 A THR 36 50.58 138.07 5 A THR 39 93.60 -166.39 5 A ILE 40 -135.01 -141.66 5 A GLN 49 80.26 102.72 5 A VAL 50 -80.30 43.55 5 A ASP 52 -64.67 82.32 5 A VAL 53 -111.44 -113.28 5 A SER 82 -82.24 30.63 5 A ASP 83 60.72 149.59 5 A SER 100 -167.40 -155.27 5 A LYS 103 -166.85 -116.54 6 A ARG 2 177.89 141.31 6 A PHE 4 60.80 141.45 6 A SER 16 77.17 166.60 6 A ASP 17 -39.05 157.59 6 A PHE 22 -177.27 -55.81 6 A THR 36 47.26 138.21 6 A THR 39 93.53 -166.72 6 A ILE 40 -133.72 -141.21 6 A GLN 49 175.57 104.89 6 A VAL 50 -62.41 -154.16 6 A MET 51 -68.32 54.60 6 A ASP 52 -66.82 -156.53 6 A ASP 83 67.38 143.67 6 A ARG 84 179.33 -171.25 6 A SER 100 -173.13 -151.32 7 A PHE 4 63.14 130.95 7 A ASP 17 -39.23 157.14 7 A HIS 21 70.28 145.68 7 A THR 36 48.64 138.34 7 A THR 39 95.41 -167.91 7 A ILE 40 -132.90 -143.11 7 A GLN 49 65.35 96.81 7 A VAL 50 -85.90 40.70 7 A ASP 52 -64.20 -157.33 7 A SER 82 -79.34 22.11 7 A ASP 83 62.92 149.30 7 A ARG 84 179.70 160.88 7 A SER 100 -172.41 -151.14 7 A LYS 102 -164.72 116.60 7 A LYS 103 -165.11 -146.81 7 A SER 104 -154.47 10.35 8 A PHE 4 72.50 151.67 8 A SER 15 -126.15 -58.68 8 A SER 16 61.83 168.34 8 A ASP 17 -40.00 158.79 8 A HIS 21 -160.45 -46.93 8 A PHE 22 -177.37 -54.41 8 A GLN 27 -115.05 77.94 8 A THR 36 48.03 135.46 8 A THR 39 90.01 -167.97 8 A ILE 40 -135.26 -139.83 8 A GLN 49 161.06 108.23 8 A VAL 50 -60.85 -153.89 8 A MET 51 -66.76 54.75 8 A ASP 52 -68.66 -146.38 8 A ASP 83 66.63 145.44 8 A ARG 84 -172.60 -173.87 8 A SER 100 -174.49 -146.03 8 A LYS 102 -166.45 -159.21 8 A LYS 103 60.61 -171.34 9 A PHE 4 66.08 129.81 9 A ASP 17 -38.60 150.70 9 A GLN 27 -118.28 78.99 9 A THR 36 50.65 144.31 9 A THR 39 162.12 173.06 9 A ILE 40 -117.05 -139.51 9 A GLN 49 35.42 56.06 9 A ASP 52 -66.56 71.61 9 A THR 69 -169.53 119.68 9 A ASP 83 69.36 147.38 9 A SER 100 -164.59 -139.88 10 A ARG 2 -60.34 -86.88 10 A ASP 3 -170.58 52.75 10 A PHE 4 56.61 139.64 10 A ASP 17 -37.01 133.77 10 A HIS 21 90.41 1.76 10 A PHE 22 107.66 -42.94 10 A THR 36 48.83 144.17 10 A THR 39 161.26 172.21 10 A ILE 40 -116.45 -142.59 10 A GLN 49 174.82 86.48 10 A VAL 50 -85.21 41.51 10 A ASP 52 -66.21 69.88 10 A VAL 53 -131.02 -96.39 10 A THR 69 -170.12 117.66 10 A ASP 83 68.40 147.18 10 A ARG 84 178.34 175.80 10 A SER 100 -171.23 -150.77 10 A SER 104 30.39 33.17 11 A ARG 2 83.69 -148.63 11 A PHE 4 74.35 156.85 11 A SER 15 -113.73 -82.12 11 A ASP 17 -40.28 158.22 11 A HIS 21 68.50 122.10 11 A PHE 22 -177.74 -55.21 11 A THR 25 -80.74 -159.10 11 A THR 36 46.98 139.35 11 A THR 39 92.23 -167.84 11 A ILE 40 -130.67 -141.47 11 A GLN 49 161.08 104.33 11 A VAL 50 -85.39 44.63 11 A ASP 52 -66.02 69.51 11 A VAL 53 -132.73 -101.41 11 A ASP 83 87.22 -158.10 11 A ARG 84 100.63 168.74 11 A SER 100 -171.54 -136.69 11 A SER 104 27.38 35.99 12 A ARG 2 -165.45 82.28 12 A PHE 4 62.76 168.66 12 A ASP 17 -39.90 158.73 12 A PRO 24 -74.95 -91.81 12 A THR 25 -140.37 -158.87 12 A THR 36 45.32 142.71 12 A THR 39 164.34 173.97 12 A ILE 40 -121.55 -141.95 12 A GLN 49 30.09 68.19 12 A ASP 52 -59.97 -151.44 12 A VAL 53 -116.43 72.60 12 A THR 69 -170.90 122.48 12 A ASP 83 84.07 148.17 12 A ARG 84 179.66 170.67 12 A SER 100 -168.60 -147.88 12 A LYS 102 -168.31 108.74 12 A SER 104 49.28 19.37 13 A ARG 2 178.30 47.46 13 A ASP 3 -65.82 87.81 13 A PHE 4 45.79 -171.11 13 A ASP 17 -37.98 156.27 13 A HIS 21 74.65 -64.93 13 A THR 36 48.87 138.63 13 A THR 39 92.82 -164.59 13 A ILE 40 -133.83 -141.21 13 A GLN 49 58.82 89.12 13 A VAL 50 -85.36 44.19 13 A ASP 52 -64.02 -146.93 13 A ASP 83 65.73 152.83 13 A ARG 84 -179.64 -172.25 13 A SER 100 -172.38 -150.02 13 A LYS 102 -170.73 139.19 13 A SER 104 -148.53 15.64 14 A ARG 2 173.98 64.35 14 A PHE 4 86.22 -173.26 14 A ASP 17 -40.37 159.26 14 A PHE 22 69.36 127.39 14 A THR 36 48.80 142.19 14 A THR 39 164.11 174.39 14 A ILE 40 -120.35 -138.65 14 A GLN 49 93.24 110.49 14 A VAL 50 -71.91 41.16 14 A ASP 52 -65.47 65.89 14 A ASP 83 68.42 148.67 14 A HIS 95 -175.15 -158.10 14 A SER 100 -170.65 -149.21 14 A LYS 103 57.60 -176.90 14 A SER 104 -88.21 31.02 15 A ARG 2 -179.46 53.27 15 A ASP 3 -173.43 59.63 15 A PHE 4 43.62 -171.10 15 A SER 16 69.31 -59.34 15 A ASP 17 54.64 169.26 15 A HIS 21 63.88 -175.65 15 A THR 36 48.98 140.39 15 A THR 39 94.32 -169.95 15 A ILE 40 -131.51 -139.88 15 A GLN 49 66.64 77.01 15 A VAL 50 -86.36 43.98 15 A ASP 52 -64.12 -153.05 15 A THR 69 -171.38 119.54 15 A SER 82 -79.78 23.01 15 A ASP 83 63.22 148.07 15 A HIS 95 -167.83 -151.50 15 A SER 100 -170.74 -151.36 THE SOLUTION STRUCTURE OF THE C EPSILON2 DOMAIN FROM IGE 1 N N A GLN 77 A GLN 77 HELX_P A SER 82 A SER 82 1 1 6 disulf 1.881 A CYS 30 A SG CYS 30 1_555 A CYS 88 A SG CYS 88 1_555 IMMUNE SYSTEM allergy, IgE, immunoglobulin domain, Ce2, antibody, Fc., IMMUNE SYSTEM IGHE_HUMAN UNP 1 106 P01854 SRDFTPPTVKILQSSCDGGGHFPPTIQLLCLVSGYTPGTINITWLEDGQVMDVDLSTASTTQEGELASTQSELTLSQKHW LSDRTYTCQVTYQGHTFEDSTKKCA 106 210 1G84 1 105 P01854 A 1 1 105 1 CYS engineered mutation SER 16 1G84 A P01854 UNP 121 16 1 CYS engineered mutation SER 104 1G84 A P01854 UNP 209 104 4 3 anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel A THR 8 A THR 8 A SER 14 A SER 14 A THR 25 A THR 25 A SER 33 A SER 33 A LEU 66 A LEU 66 A SER 76 A SER 76 A LEU 55 A LEU 55 A GLU 63 A GLU 63 A ASN 41 A ASN 41 A ASP 47 A ASP 47 A ARG 84 A ARG 84 A TYR 92 A TYR 92 A HIS 95 A HIS 95 A LYS 103 A LYS 103 1 P 1