1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 Wang, Q.-Y. Huang, W. Dolmer, K. Gettins, P.G.W. Rong, L. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic C3 H7 N O2 89.093 y ALANINE L-peptide linking C6 H15 N4 O2 1 175.209 y ARGININE L-peptide linking C4 H7 N O4 133.103 y ASPARTIC ACID L-peptide linking Ca 2 40.078 CALCIUM ION non-polymer 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 LEUCINE 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 US J.Virol. JOVIAM 0825 0022-538X 76 2848 2856 10.1128/JVI.76.6.2848-2856.2002 11861852 Solution structure of the viral receptor domain of Tva and its implications in viral entry. 2002 10.2210/pdb1jrf/pdb pdb_00001jrf 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 5074.394 SUBGROUP A ROUS SARCOMA VIRUS RECEPTORS PG800 AND PG950 LDL-A domain 1 man polymer 40.078 CALCIUM ION 1 syn non-polymer Tva LDL-A module; LOW DENSITY LIPOPROTEIN RECEPTOR-RELATED PROTEIN no no GSSRCPPGQFRCSEPPGAHGECYPQDWLCDGHPDCDDGRDEWGCGTS GSSRCPPGQFRCSEPPGAHGECYPQDWLCDGHPDCDDGRDEWGCGTS 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 Japanese quail Coturnix Escherichia Escherichia coli sample 93934 Coturnix japonica 511693 Escherichia coli BL21 BL21 PLASMID pGEX-4T-1 database_2 pdbx_struct_assembly pdbx_struct_conn_angle pdbx_struct_oper_list struct_conn struct_ref_seq_dif struct_site repository Initial release Version format compliance Version format compliance Database references Derived calculations 1 0 2002-03-08 1 1 2008-04-27 1 2 2011-07-13 1 3 2022-02-23 _database_2.pdbx_DOI _database_2.pdbx_database_accession _pdbx_struct_conn_angle.ptnr1_auth_comp_id _pdbx_struct_conn_angle.ptnr1_auth_seq_id _pdbx_struct_conn_angle.ptnr1_label_atom_id _pdbx_struct_conn_angle.ptnr1_label_comp_id _pdbx_struct_conn_angle.ptnr1_label_seq_id _pdbx_struct_conn_angle.ptnr3_auth_comp_id _pdbx_struct_conn_angle.ptnr3_auth_seq_id _pdbx_struct_conn_angle.ptnr3_label_atom_id _pdbx_struct_conn_angle.ptnr3_label_comp_id _pdbx_struct_conn_angle.ptnr3_label_seq_id _pdbx_struct_conn_angle.value _struct_conn.pdbx_dist_value _struct_conn.ptnr1_auth_comp_id _struct_conn.ptnr1_auth_seq_id _struct_conn.ptnr1_label_asym_id _struct_conn.ptnr1_label_atom_id _struct_conn.ptnr1_label_comp_id _struct_conn.ptnr1_label_seq_id _struct_conn.ptnr2_auth_comp_id _struct_conn.ptnr2_auth_seq_id _struct_conn.ptnr2_label_asym_id _struct_conn.ptnr2_label_atom_id _struct_conn.ptnr2_label_comp_id _struct_conn.ptnr2_label_seq_id _struct_ref_seq_dif.details _struct_site.pdbx_auth_asym_id _struct_site.pdbx_auth_comp_id _struct_site.pdbx_auth_seq_id RCSB Y RCSB 2001-08-13 REL REL CA CALCIUM ION structures with the least restraint violations 200 20 HNCA, HNCACB 15N-TOCSY 1H-15N HSQC 2D NOESY HCCH-NOESY NOESY-HSQC 5.3 ambient 282 K simulated annealing 1 fewest violations 2mM Tva LDL-A module U-15N 13C; 20mM CH3COOH, 10mM CaCl2, and 10% D2O, pH 5.3 90% H2O/10% D2O 2mM Tva LDL-A module U-15N; 20mM CD3COOD, 10mM CaCl2, and 99% D2O, pH 5.3 99% D2O 2mM Tva LDL-A module 14N; 20mM CH3COOH, 10mM CaCl2, and 99% D2O, pH 5.3 99% D2O 2mM Tva LDL-A module U-15N, 13C; 20mM CD3COOD, 10mM CaCl2, and 99% D2O, pH 5.3 99% D2O 2mM Tva LDL-A module U-15N; 20mM CH3COOH, 10mM CaCl2, and 10% D2O, pH 5.3 90% H2O/10% D2O Guntert, P. structure solution DIANA 1.4 Guntert, P. refinement DIANA 1.4 600 Bruker DRX CA 48 2 CA CA 48 A GLY 1 n 1 GLY 1 A SER 2 n 2 SER 2 A SER 3 n 3 SER 3 A ARG 4 n 4 ARG 4 A CYS 5 n 5 CYS 5 A PRO 6 n 6 PRO 6 A PRO 7 n 7 PRO 7 A GLY 8 n 8 GLY 8 A GLN 9 n 9 GLN 9 A PHE 10 n 10 PHE 10 A ARG 11 n 11 ARG 11 A CYS 12 n 12 CYS 12 A SER 13 n 13 SER 13 A GLU 14 n 14 GLU 14 A PRO 15 n 15 PRO 15 A PRO 16 n 16 PRO 16 A GLY 17 n 17 GLY 17 A ALA 18 n 18 ALA 18 A HIS 19 n 19 HIS 19 A GLY 20 n 20 GLY 20 A GLU 21 n 21 GLU 21 A CYS 22 n 22 CYS 22 A TYR 23 n 23 TYR 23 A PRO 24 n 24 PRO 24 A GLN 25 n 25 GLN 25 A ASP 26 n 26 ASP 26 A TRP 27 n 27 TRP 27 A LEU 28 n 28 LEU 28 A CYS 29 n 29 CYS 29 A ASP 30 n 30 ASP 30 A GLY 31 n 31 GLY 31 A HIS 32 n 32 HIS 32 A PRO 33 n 33 PRO 33 A ASP 34 n 34 ASP 34 A CYS 35 n 35 CYS 35 A ASP 36 n 36 ASP 36 A ASP 37 n 37 ASP 37 A GLY 38 n 38 GLY 38 A ARG 39 n 39 ARG 39 A ASP 40 n 40 ASP 40 A GLU 41 n 41 GLU 41 A TRP 42 n 42 TRP 42 A GLY 43 n 43 GLY 43 A CYS 44 n 44 CYS 44 A GLY 45 n 45 GLY 45 A THR 46 n 46 THR 46 A SER 47 n 47 SER 47 A author_defined_assembly 1 monomeric A TRP 27 A O TRP 27 1_555 A CA 48 B CA CA 1_555 A ASP 30 A OD2 ASP 30 1_555 76.4 A TRP 27 A O TRP 27 1_555 A CA 48 B CA CA 1_555 A HIS 32 A O HIS 32 1_555 162.2 A ASP 30 A OD2 ASP 30 1_555 A CA 48 B CA CA 1_555 A HIS 32 A O HIS 32 1_555 85.9 A TRP 27 A O TRP 27 1_555 A CA 48 B CA CA 1_555 A ASP 34 A OD2 ASP 34 1_555 96.0 A ASP 30 A OD2 ASP 30 1_555 A CA 48 B CA CA 1_555 A ASP 34 A OD2 ASP 34 1_555 106.8 A HIS 32 A O HIS 32 1_555 A CA 48 B CA CA 1_555 A ASP 34 A OD2 ASP 34 1_555 87.2 A TRP 27 A O TRP 27 1_555 A CA 48 B CA CA 1_555 A ASP 40 A OD2 ASP 40 1_555 94.3 A ASP 30 A OD2 ASP 30 1_555 A CA 48 B CA CA 1_555 A ASP 40 A OD2 ASP 40 1_555 170.0 A HIS 32 A O HIS 32 1_555 A CA 48 B CA CA 1_555 A ASP 40 A OD2 ASP 40 1_555 103.4 A ASP 34 A OD2 ASP 34 1_555 A CA 48 B CA CA 1_555 A ASP 40 A OD2 ASP 40 1_555 77.6 A TRP 27 A O TRP 27 1_555 A CA 48 B CA CA 1_555 A GLU 41 A OE1 GLU 41 1_555 100.8 A ASP 30 A OD2 ASP 30 1_555 A CA 48 B CA CA 1_555 A GLU 41 A OE1 GLU 41 1_555 74.9 A HIS 32 A O HIS 32 1_555 A CA 48 B CA CA 1_555 A GLU 41 A OE1 GLU 41 1_555 76.1 A ASP 34 A OD2 ASP 34 1_555 A CA 48 B CA CA 1_555 A GLU 41 A OE1 GLU 41 1_555 163.0 A ASP 40 A OD2 ASP 40 1_555 A CA 48 B CA CA 1_555 A GLU 41 A OE1 GLU 41 1_555 103.6 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 1 A A OE2 CA GLU CA 41 48 0.63 1 A A H OE1 GLY GLU 31 41 1.53 6 A A O HE SER ARG 13 39 1.60 13 A A OE2 CA GLU CA 41 48 0.54 13 A A H OE1 ASP GLU 30 41 1.53 17 A A OE2 CA GLU CA 41 48 1.53 20 A A O H ARG TRP 39 42 1.53 1 A SER 2 -41.21 154.61 1 A CYS 5 179.49 73.16 1 A PHE 10 -65.11 -158.21 1 A CYS 12 74.85 56.62 1 A SER 13 -146.35 10.27 1 A GLU 14 174.10 109.55 1 A HIS 19 179.07 85.33 1 A CYS 22 -129.57 -78.19 1 A CYS 29 39.38 80.59 1 A ASP 30 -137.88 -51.67 1 A ASP 34 -146.16 38.24 1 A TRP 42 -51.42 -77.08 1 A CYS 44 -147.48 -47.99 2 A SER 3 44.36 90.87 2 A CYS 5 178.84 74.86 2 A PHE 10 -71.56 -158.86 2 A CYS 12 75.82 56.83 2 A GLU 14 175.06 108.41 2 A HIS 19 179.26 84.42 2 A CYS 22 -136.75 -74.43 2 A CYS 29 49.22 78.51 2 A ASP 30 -139.64 -62.00 2 A ASP 34 -142.49 35.24 2 A ASP 37 -122.16 -55.04 2 A GLU 41 -147.79 31.39 2 A TRP 42 -51.17 -86.34 3 A SER 2 -178.08 126.42 3 A SER 3 59.24 74.81 3 A CYS 5 179.18 73.83 3 A PHE 10 -61.00 -156.16 3 A CYS 12 76.25 49.88 3 A GLU 14 176.43 113.81 3 A HIS 19 178.85 84.69 3 A CYS 22 -142.74 -73.28 3 A CYS 29 47.04 78.60 3 A ASP 30 -139.91 -62.52 3 A CYS 35 -122.29 -161.49 3 A ASP 37 -132.33 -56.20 3 A TRP 42 -52.30 -89.15 4 A SER 2 -147.95 -46.30 4 A SER 3 -131.87 -67.85 4 A CYS 5 178.93 75.26 4 A PHE 10 -63.53 -156.47 4 A CYS 12 75.38 51.28 4 A GLU 14 176.24 113.43 4 A HIS 19 178.68 86.38 4 A CYS 22 -144.01 -74.34 4 A CYS 29 49.50 75.76 4 A ASP 30 -137.49 -62.42 4 A CYS 35 -116.48 -168.25 4 A ASP 37 -124.75 -56.96 4 A GLU 41 -147.37 24.42 4 A TRP 42 -51.98 -77.46 5 A SER 2 174.93 -53.13 5 A CYS 5 179.18 75.87 5 A PHE 10 -64.03 -156.71 5 A CYS 12 76.62 51.39 5 A GLU 14 176.15 113.39 5 A HIS 19 178.37 85.00 5 A CYS 22 -136.62 -79.44 5 A CYS 29 46.85 73.37 5 A ASP 30 -133.11 -53.02 5 A CYS 35 -119.94 -165.12 5 A ASP 37 -126.28 -57.71 5 A TRP 42 -50.75 -86.65 6 A SER 2 -41.74 162.19 6 A SER 3 56.59 107.70 6 A CYS 5 179.61 74.65 6 A PHE 10 -66.84 -158.21 6 A CYS 12 76.87 51.48 6 A GLU 14 175.92 113.77 6 A HIS 19 179.01 84.78 6 A CYS 22 -136.24 -74.19 6 A CYS 29 45.31 75.05 6 A ASP 30 -135.60 -52.25 6 A CYS 35 -116.68 -164.09 6 A ASP 37 -129.87 -53.83 6 A ARG 39 -143.13 15.09 6 A GLU 41 -155.72 25.60 6 A THR 46 38.95 79.19 7 A SER 3 172.91 134.32 7 A ARG 4 -84.04 48.41 7 A CYS 5 178.51 74.76 7 A PHE 10 -64.60 -154.90 7 A CYS 12 75.38 53.77 7 A GLU 14 176.14 113.26 7 A ALA 18 -38.69 118.47 7 A HIS 19 179.49 86.07 7 A GLU 21 -39.71 -28.58 7 A CYS 22 -137.75 -68.68 7 A CYS 29 48.76 79.47 7 A ASP 30 -142.70 -63.06 7 A ASP 34 -149.80 39.78 7 A CYS 35 -108.22 -166.37 7 A TRP 42 -54.99 -93.23 8 A ARG 4 -148.12 51.79 8 A CYS 5 179.64 72.80 8 A PHE 10 -65.05 -155.47 8 A CYS 12 70.15 57.78 8 A SER 13 -147.03 10.69 8 A GLU 14 175.20 111.34 8 A HIS 19 179.33 90.09 8 A GLU 21 -39.49 -29.26 8 A CYS 22 -136.36 -72.43 8 A CYS 29 46.66 75.04 8 A ASP 30 -137.06 -60.96 8 A ASP 34 -157.67 45.44 8 A CYS 35 -119.84 -169.45 8 A TRP 42 -51.37 -87.24 9 A SER 3 -85.73 -71.68 9 A ARG 4 -176.44 67.30 9 A CYS 5 178.49 76.58 9 A PHE 10 -64.36 -158.20 9 A CYS 12 74.52 52.32 9 A GLU 14 176.30 113.68 9 A HIS 19 179.25 85.23 9 A CYS 22 -128.41 -81.10 9 A PRO 24 -74.92 32.47 9 A CYS 29 42.45 78.62 9 A ASP 30 -137.39 -65.19 9 A GLU 41 -144.68 16.96 9 A TRP 42 -50.80 -79.34 9 A CYS 44 -137.35 -47.55 10 A SER 2 173.69 -59.93 10 A SER 3 -176.09 93.77 10 A CYS 5 179.97 69.93 10 A PHE 10 -65.55 -156.07 10 A CYS 12 72.06 54.49 10 A GLU 14 175.68 112.33 10 A HIS 19 179.09 89.52 10 A GLU 21 -39.74 -28.98 10 A CYS 22 -140.37 -62.05 10 A CYS 29 41.81 76.23 10 A ASP 30 -137.48 -50.83 10 A ASP 34 -164.93 54.56 10 A CYS 35 -122.47 -166.49 10 A GLU 41 -140.74 42.64 10 A TRP 42 -55.88 -76.67 10 A THR 46 -141.25 -53.22 11 A SER 2 64.52 176.59 11 A ARG 4 176.77 43.25 11 A CYS 5 -179.71 74.24 11 A PHE 10 -165.75 -157.61 11 A CYS 12 90.10 55.76 11 A GLU 14 173.79 116.86 11 A HIS 19 177.92 84.55 11 A CYS 22 -127.83 -76.45 11 A PRO 24 -74.92 37.70 11 A CYS 29 39.95 81.32 11 A ASP 30 -137.51 -57.41 11 A GLU 41 -151.64 34.72 11 A TRP 42 -50.39 -83.98 11 A THR 46 42.75 72.74 12 A SER 2 63.48 156.62 12 A SER 3 61.70 87.13 12 A CYS 5 179.33 74.84 12 A PHE 10 -67.27 -154.50 12 A CYS 12 72.59 54.66 12 A GLU 14 175.79 113.11 12 A HIS 19 179.34 87.22 12 A GLU 21 -39.78 -32.52 12 A CYS 22 -132.77 -74.34 12 A CYS 29 44.65 77.42 12 A ASP 30 -136.37 -51.55 12 A ASP 34 -157.02 70.37 12 A ASP 37 -128.09 -63.39 12 A GLU 41 -143.55 44.50 12 A TRP 42 -53.65 -81.88 13 A SER 2 -142.59 15.04 13 A SER 3 64.33 88.99 13 A CYS 5 178.83 74.19 13 A PHE 10 -166.03 -158.16 13 A CYS 12 85.58 56.68 13 A GLU 14 174.15 116.99 13 A PRO 16 -75.00 -70.32 13 A HIS 19 178.06 85.26 13 A CYS 22 -141.70 -78.90 13 A CYS 29 40.71 81.20 13 A ASP 30 -136.57 -48.07 13 A ASP 34 -167.33 32.31 13 A TRP 42 -51.60 -88.08 13 A CYS 44 -150.02 -47.68 14 A SER 3 -133.30 -93.70 14 A ARG 4 -150.59 55.36 14 A CYS 5 178.46 77.85 14 A PHE 10 -66.17 -158.34 14 A CYS 12 76.71 52.62 14 A GLU 14 176.20 113.41 14 A HIS 19 178.43 85.87 14 A CYS 22 -123.02 -79.99 14 A PRO 24 -75.04 34.06 14 A CYS 29 43.32 73.83 14 A ASP 30 -132.33 -53.04 14 A CYS 35 -114.73 -167.80 14 A GLU 41 -154.67 26.14 14 A TRP 42 -50.28 -80.64 14 A THR 46 40.54 74.71 15 A SER 2 -42.87 164.47 15 A ARG 4 -116.38 68.97 15 A CYS 5 178.41 75.96 15 A PHE 10 -65.85 -158.02 15 A CYS 12 75.97 52.56 15 A GLU 14 175.92 113.79 15 A HIS 19 178.81 86.71 15 A CYS 22 -130.02 -82.30 15 A CYS 29 43.86 75.50 15 A ASP 30 -134.56 -52.33 15 A ASP 34 -144.74 26.76 15 A ASP 37 -121.90 -51.90 15 A GLU 41 -151.70 25.05 15 A TRP 42 -50.33 -83.14 16 A SER 3 70.75 -59.81 16 A CYS 5 178.79 76.60 16 A PHE 10 -67.44 -156.43 16 A CYS 12 73.52 55.82 16 A GLU 14 174.39 108.94 16 A HIS 19 179.16 86.85 16 A CYS 22 -137.17 -76.46 16 A CYS 29 52.32 71.32 16 A ASP 30 -134.15 -52.16 16 A ASP 34 -159.12 47.71 16 A CYS 35 -120.13 -169.15 16 A GLU 41 -140.33 38.26 16 A TRP 42 -50.89 -84.09 17 A SER 2 -90.52 -73.68 17 A CYS 5 179.20 76.25 17 A PHE 10 -68.71 -158.75 17 A CYS 12 77.45 53.19 17 A GLU 14 175.30 112.32 17 A HIS 19 179.06 87.21 17 A CYS 22 -125.52 -77.40 17 A CYS 29 45.72 72.25 17 A ASP 30 -131.93 -49.30 17 A ASP 34 -168.96 33.24 17 A GLU 41 -163.73 38.72 17 A TRP 42 -51.53 -90.82 18 A ARG 4 39.59 48.76 18 A CYS 5 179.31 74.14 18 A PHE 10 -62.98 -154.73 18 A CYS 12 73.88 53.54 18 A GLU 14 176.33 113.53 18 A ALA 18 -38.52 118.73 18 A HIS 19 179.48 86.18 18 A GLU 21 -39.48 -28.72 18 A CYS 22 -138.35 -71.48 18 A CYS 29 43.76 74.65 18 A ASP 30 -135.70 -52.60 18 A ASP 34 -155.82 69.83 18 A ASP 37 -126.58 -59.45 18 A TRP 42 -51.61 -83.52 19 A SER 3 -143.94 58.78 19 A CYS 5 178.72 76.10 19 A GLN 9 -141.82 22.36 19 A PHE 10 -67.58 -159.02 19 A CYS 12 93.87 55.94 19 A SER 13 -147.03 10.44 19 A GLU 14 175.20 108.38 19 A HIS 19 179.38 83.99 19 A CYS 22 -133.50 -78.58 19 A CYS 29 41.20 80.28 19 A ASP 30 -139.95 -59.20 19 A ASP 34 -149.30 31.24 19 A GLU 41 -157.26 25.35 19 A TRP 42 -50.37 -79.40 20 A SER 2 -169.53 -50.10 20 A CYS 5 178.62 75.55 20 A PHE 10 -67.28 -154.28 20 A CYS 12 74.64 55.70 20 A SER 13 -142.74 11.82 20 A GLU 14 176.39 114.97 20 A HIS 19 178.80 89.93 20 A GLU 21 -39.23 -38.35 20 A CYS 22 -124.28 -77.22 20 A PRO 24 -75.04 27.54 20 A CYS 29 47.82 76.46 20 A ASP 30 -136.79 -66.82 20 A ASP 34 -145.20 31.35 20 A CYS 35 -100.21 -166.63 20 A TRP 42 -51.08 -91.37 NMR Solution Structure of the Viral Receptor Domain of Tva 1 N N 2 N N A TYR 23 A TYR 23 HELX_P A LEU 28 A LEU 28 5 1 6 A GLU 41 A GLU 41 HELX_P A THR 46 A THR 46 1 2 6 disulf 2.074 A CYS 5 A SG CYS 5 1_555 A CYS 22 A SG CYS 22 1_555 disulf 1.983 A CYS 12 A SG CYS 12 1_555 A CYS 35 A SG CYS 35 1_555 disulf 1.992 A CYS 29 A SG CYS 29 1_555 A CYS 44 A SG CYS 44 1_555 metalc 2.500 A TRP 27 A O TRP 27 1_555 A CA 48 B CA CA 1_555 metalc 2.306 A ASP 30 A OD2 ASP 30 1_555 A CA 48 B CA CA 1_555 metalc 2.175 A HIS 32 A O HIS 32 1_555 A CA 48 B CA CA 1_555 metalc 2.638 A ASP 34 A OD2 ASP 34 1_555 A CA 48 B CA CA 1_555 metalc 3.019 A ASP 40 A OD2 ASP 40 1_555 A CA 48 B CA CA 1_555 metalc 2.603 A GLU 41 A OE1 GLU 41 1_555 A CA 48 B CA CA 1_555 SIGNALING PROTEIN, MEMBRANE PROTEIN DISULFIDE BOND, ALPHA HELIX, CALCIUM CAGE, SIGNALING PROTEIN, MEMBRANE PROTEIN RSVR_COTJA UNP 1 26 P98162 SLSRCPPGQFRCSEPPGAHGECYPQDWLCDGHPDCDDGRDEWGCGTS 26 72 1JRF 1 47 P98162 A 1 1 47 1 SER cloning artifact GLY 1 1JRF A P98162 UNP 26 1 1 LEU cloning artifact SER 2 1JRF A P98162 UNP 27 2 BINDING SITE FOR RESIDUE CA A 48 A CA 48 Software 6 A TRP 27 A TRP 27 6 1_555 A ASP 30 A ASP 30 6 1_555 A HIS 32 A HIS 32 6 1_555 A ASP 34 A ASP 34 6 1_555 A ASP 40 A ASP 40 6 1_555 A GLU 41 A GLU 41 6 1_555