1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 THE LIGAND BINDING SITE IS LINED BY A NUMBER OF CONSERVED AROMATIC AND ALIPHATIC RESIDUES. THESE ARE TYR 26, PHE 36, PHE 46, VAL 55, ILE 56, TRP 59, TYR 82 AND PHE 99. THE +3, +1, -3, +1 TOPOLOGY OF THE FKBP12 BETA-SHEET RESULTS IN A CROSSING OF TWO STRAND-CONNECTING LOOPS (PRO 9 TO GLN 20, AND MET 66 TO GLN 70). TO THE BEST OF OUR KNOWLEDGE, THIS WAS THE FIRST EXAMPLE OF SUCH A STRUCTURE. INTERESTINGLY, THE RECENTLY-REPORTED STRUCTURE OF ANOTHER IMMUNOPHILIN (IMMUNO-SUPPRESSANT-BINDING PROTEIN), CYCLOPHILIN, ALSO CONTAINS THIS TYPE OF TOPOLOGICAL CROSSING OF TWO STRAND-CONNECTING LOOPS. THE SIGNIFICANCE OF THIS SIMILARITY, IF ANY, REMAINS UNKNOWN. THE LOOPS FROM SER 39 TO LYS 44, AND ALA 83 TO HIS 94 ARE UNDERDETERMINED IN COMPARISON TO THE REMAINDER OF THE STRUCTURE. IN THE CRYSTAL STRUCTURES OF THE FKBP12-FK506 AND FKBP12-RAPAMYCIN COMPLEXES, THE LATTER LOOP IS WELL DEFINED, AND MAKES NUMEROUS CONTACTS TO THE BOUND LIGANDS. WE ARE CURRENTLY IN THE PROCESS OF PERFORMING HETERONUCLEAR NOE AND RELAXATION EXPERIMENTS TO ANALYZE THE CHANGES IN MOBILITY OF THIS REGION UPON LIGAND-BINDING. Michnick, S.W. Rosen, M.K. Wandless, T.J. Karplus, M. Schreiber, S.L. 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 Science SCIEAS 0038 0036-8075 252 836 839 1709301 Solution structure of FKBP, a rotamase enzyme and receptor for FK506 and rapamycin. 1991 US Biochemistry BICHAW 0033 0006-2960 30 4774 Proton and Nitrogen Sequential Assignments and Secondary Structure Determination of the Human Fk506 and Rapamycin Binding Protein 1991 UK Nature NATUAS 0006 0028-0836 346 671 Molecular Cloning and Overexpression of the Human Fk506-Binding Protein Fkbp 1990 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 11836.508 FK506 AND RAPAMYCIN-BINDING PROTEIN 1 man polymer no no GVQVETISPGDGRTFPKRGQTCVVHYTGMLEDGKKFDSSRDRNKPFKFMLGKQEVIRGWEEGVAQMSVGQRAKLTISPDY AYGATGHPGIIPPHATLVFDVELLKLE GVQVETISPGDGRTFPKRGQTCVVHYTGMLEDGKKFDSSRDRNKPFKFMLGKQEVIRGWEEGVAQMSVGQRAKLTISPDY AYGATGHPGIIPPHATLVFDVELLKLE 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 n n human Homo sample S2 9606 Homo sapiens pdbx_database_status pdbx_struct_assembly pdbx_struct_oper_list struct_conf struct_conf_type repository Initial release Version format compliance Version format compliance Derived calculations Other 1 0 1994-01-31 1 1 2008-03-03 1 2 2011-07-13 1 3 2017-11-29 _pdbx_database_status.process_site Y BNL 1992-03-05 REL 1 BRUNGER refinement X-PLOR GLY 1 n 1 GLY 1 A VAL 2 n 2 VAL 2 A GLN 3 n 3 GLN 3 A VAL 4 n 4 VAL 4 A GLU 5 n 5 GLU 5 A THR 6 n 6 THR 6 A ILE 7 n 7 ILE 7 A SER 8 n 8 SER 8 A PRO 9 n 9 PRO 9 A GLY 10 n 10 GLY 10 A ASP 11 n 11 ASP 11 A GLY 12 n 12 GLY 12 A ARG 13 n 13 ARG 13 A THR 14 n 14 THR 14 A PHE 15 n 15 PHE 15 A PRO 16 n 16 PRO 16 A LYS 17 n 17 LYS 17 A ARG 18 n 18 ARG 18 A GLY 19 n 19 GLY 19 A GLN 20 n 20 GLN 20 A THR 21 n 21 THR 21 A CYS 22 n 22 CYS 22 A VAL 23 n 23 VAL 23 A VAL 24 n 24 VAL 24 A HIS 25 n 25 HIS 25 A TYR 26 n 26 TYR 26 A THR 27 n 27 THR 27 A GLY 28 n 28 GLY 28 A MET 29 n 29 MET 29 A LEU 30 n 30 LEU 30 A GLU 31 n 31 GLU 31 A ASP 32 n 32 ASP 32 A GLY 33 n 33 GLY 33 A LYS 34 n 34 LYS 34 A LYS 35 n 35 LYS 35 A PHE 36 n 36 PHE 36 A ASP 37 n 37 ASP 37 A SER 38 n 38 SER 38 A SER 39 n 39 SER 39 A ARG 40 n 40 ARG 40 A ASP 41 n 41 ASP 41 A ARG 42 n 42 ARG 42 A ASN 43 n 43 ASN 43 A LYS 44 n 44 LYS 44 A PRO 45 n 45 PRO 45 A PHE 46 n 46 PHE 46 A LYS 47 n 47 LYS 47 A PHE 48 n 48 PHE 48 A MET 49 n 49 MET 49 A LEU 50 n 50 LEU 50 A GLY 51 n 51 GLY 51 A LYS 52 n 52 LYS 52 A GLN 53 n 53 GLN 53 A GLU 54 n 54 GLU 54 A VAL 55 n 55 VAL 55 A ILE 56 n 56 ILE 56 A ARG 57 n 57 ARG 57 A GLY 58 n 58 GLY 58 A TRP 59 n 59 TRP 59 A GLU 60 n 60 GLU 60 A GLU 61 n 61 GLU 61 A GLY 62 n 62 GLY 62 A VAL 63 n 63 VAL 63 A ALA 64 n 64 ALA 64 A GLN 65 n 65 GLN 65 A MET 66 n 66 MET 66 A SER 67 n 67 SER 67 A VAL 68 n 68 VAL 68 A GLY 69 n 69 GLY 69 A GLN 70 n 70 GLN 70 A ARG 71 n 71 ARG 71 A ALA 72 n 72 ALA 72 A LYS 73 n 73 LYS 73 A LEU 74 n 74 LEU 74 A THR 75 n 75 THR 75 A ILE 76 n 76 ILE 76 A SER 77 n 77 SER 77 A PRO 78 n 78 PRO 78 A ASP 79 n 79 ASP 79 A TYR 80 n 80 TYR 80 A ALA 81 n 81 ALA 81 A TYR 82 n 82 TYR 82 A GLY 83 n 83 GLY 83 A ALA 84 n 84 ALA 84 A THR 85 n 85 THR 85 A GLY 86 n 86 GLY 86 A HIS 87 n 87 HIS 87 A PRO 88 n 88 PRO 88 A GLY 89 n 89 GLY 89 A ILE 90 n 90 ILE 90 A ILE 91 n 91 ILE 91 A PRO 92 n 92 PRO 92 A PRO 93 n 93 PRO 93 A HIS 94 n 94 HIS 94 A ALA 95 n 95 ALA 95 A THR 96 n 96 THR 96 A LEU 97 n 97 LEU 97 A VAL 98 n 98 VAL 98 A PHE 99 n 99 PHE 99 A ASP 100 n 100 ASP 100 A VAL 101 n 101 VAL 101 A GLU 102 n 102 GLU 102 A LEU 103 n 103 LEU 103 A LEU 104 n 104 LEU 104 A LYS 105 n 105 LYS 105 A LEU 106 n 106 LEU 106 A GLU 107 n 107 GLU 107 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 1 A ARG 13 0.111 SIDE CHAIN 1 A ARG 18 0.152 SIDE CHAIN 1 A ARG 40 0.084 SIDE CHAIN 1 A ARG 42 0.243 SIDE CHAIN 1 A ARG 57 0.191 SIDE CHAIN 1 -6.13 1.00 110.10 103.97 A A A CG CD1 NE1 TRP TRP TRP 59 59 59 N 1 7.44 0.90 109.00 116.44 A A A CD1 NE1 CE2 TRP TRP TRP 59 59 59 N 1 9.60 1.10 130.40 140.00 A A A NE1 CE2 CZ2 TRP TRP TRP 59 59 59 N 1 -6.25 1.00 107.30 101.05 A A A NE1 CE2 CD2 TRP TRP TRP 59 59 59 N 1 A ILE 7 -123.23 -51.39 1 A PRO 9 -37.33 164.94 1 A GLU 31 -27.79 -56.08 1 A ASP 32 -159.33 43.91 1 A LYS 34 -161.06 -166.45 1 A SER 39 -119.30 61.77 1 A ARG 40 -106.02 59.25 1 A ARG 42 -17.37 -76.77 1 A PRO 45 -44.53 -156.66 1 A GLN 53 55.31 71.67 1 A ILE 56 -56.10 176.37 1 A TRP 59 -78.27 -75.95 1 A GLU 60 -28.13 -55.69 1 A GLN 65 -48.61 -11.43 1 A VAL 68 -45.38 99.40 1 A ALA 81 -84.95 -114.31 1 A TYR 82 -113.73 69.25 1 A PRO 93 -50.64 175.93 1 A HIS 94 9.54 64.47 1 A ALA 95 -116.32 77.49 1 A THR 96 -33.20 126.83 model building X-PLOR refinement X-PLOR phasing X-PLOR FK506 AND RAPAMYCIN-BINDING PROTEIN (FKBP12) (NMR, MINIMIZED AVERAGE STRUCTURE EXCLUDING ELECTROSTATIC INTERACTIONS) SOLUTION STRUCTURE OF FKBP, A ROTAMASE ENZYME AND RECEPTOR FOR FK506 AND RAPAMYCIN 1 Y N A ARG 57 A ARG 57 HELX_P LAST RESIDUE MAY BE 3/10 A GLN 65 A GLN 65 1 H1 9 CIS-TRANS ISOMERASE CIS-TRANS ISOMERASE FKB1A_HUMAN UNP 1 1 P62942 GVQVETISPGDGRTFPKRGQTCVVHYTGMLEDGKKFDSSRDRNKPFKFMLGKQEVIRGWEEGVAQMSVGQRAKLTISPDY AYGATGHPGIIPPHATLVFDVELLKLE 1 107 1FKS 1 107 P62942 A 1 1 107 5 5 anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel A VAL 2 A VAL 2 A SER 8 A SER 8 A ARG 71 A ARG 71 A SER 77 A SER 77 A LEU 97 A LEU 97 A LEU 106 A LEU 106 A THR 21 A THR 21 A GLU 31 A GLU 31 A LYS 35 A LYS 35 A SER 38 A SER 38 A VAL 2 A VAL 2 A SER 8 A SER 8 A ARG 71 A ARG 71 A SER 77 A SER 77 A LEU 97 A LEU 97 A LEU 106 A LEU 106 A THR 21 A THR 21 A GLU 31 A GLU 31 A PHE 46 A PHE 46 A MET 49 A MET 49 Unknown 8 A TYR 26 A TYR 26 8 1_555 A PHE 36 A PHE 36 8 1_555 A PHE 46 A PHE 46 8 1_555 A VAL 55 A VAL 55 8 1_555 A ILE 56 A ILE 56 8 1_555 A TRP 59 A TRP 59 8 1_555 A TYR 82 A TYR 82 8 1_555 A PHE 99 A PHE 99 8 1_555 1 P 1