HEADER RNA BINDING PROTEIN 14-OCT-17 5YKH TITLE CRYSTAL STRUCTURE OF THE ENGINEERED NINE-REPEAT PUF DOMAIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: PUMILIO HOMOLOG 1; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: PUMILIO-1; COMPND 5 ENGINEERED: YES; COMPND 6 OTHER_DETAILS: THIS IS AN ENGINEERED PROTEIN, WHICH IS MADE UP OF COMPND 7 FRAGMENTS OF THE RNA BINDING DOMAIN (PUF DOMAIN) OF HUMAN PUMILIO1 COMPND 8 (UNIPROT NO. Q14671). SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: PUM1, KIAA0099, PUMH1; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PET-DUET-1 KEYWDS PUF REPEATS, ENGINEERED PROTEIN, RNA RECOGNITION, RNA BINDING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR Y.Y.ZHAO,J.WANG,H.T.LI,Z.X.WANG,J.W.WU REVDAT 3 22-NOV-23 5YKH 1 REMARK REVDAT 2 06-JUN-18 5YKH 1 JRNL REVDAT 1 14-MAR-18 5YKH 0 JRNL AUTH Y.Y.ZHAO,M.W.MAO,W.J.ZHANG,J.WANG,H.T.LI,Y.YANG,Z.WANG, JRNL AUTH 2 J.W.WU JRNL TITL EXPANDING RNA BINDING SPECIFICITY AND AFFINITY OF ENGINEERED JRNL TITL 2 PUF DOMAINS. JRNL REF NUCLEIC ACIDS RES. V. 46 4771 2018 JRNL REFN ESSN 1362-4962 JRNL PMID 29490074 JRNL DOI 10.1093/NAR/GKY134 REMARK 2 REMARK 2 RESOLUTION. 2.46 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (1.10.1_2155: ???) REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.46 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 33.62 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.340 REMARK 3 COMPLETENESS FOR RANGE (%) : 98.2 REMARK 3 NUMBER OF REFLECTIONS : 14491 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.216 REMARK 3 R VALUE (WORKING SET) : 0.213 REMARK 3 FREE R VALUE : 0.258 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.930 REMARK 3 FREE R VALUE TEST SET COUNT : 715 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 33.6199 - 4.1991 0.97 2860 129 0.1853 0.2145 REMARK 3 2 4.1991 - 3.3339 0.96 2641 167 0.1978 0.2319 REMARK 3 3 3.3339 - 2.9127 1.00 2779 142 0.2477 0.2921 REMARK 3 4 2.9127 - 2.6465 0.98 2747 139 0.2673 0.3536 REMARK 3 5 2.6465 - 2.4569 1.00 2749 138 0.2537 0.3439 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : NULL REMARK 3 SOLVENT RADIUS : 1.11 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : NULL REMARK 3 B_SOL : NULL REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.360 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 28.610 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 41.75 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 46.50 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : NULL REMARK 3 B22 (A**2) : NULL REMARK 3 B33 (A**2) : NULL REMARK 3 B12 (A**2) : NULL REMARK 3 B13 (A**2) : NULL REMARK 3 B23 (A**2) : NULL REMARK 3 REMARK 3 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.003 3166 REMARK 3 ANGLE : 0.435 4266 REMARK 3 CHIRALITY : 0.035 469 REMARK 3 PLANARITY : 0.003 551 REMARK 3 DIHEDRAL : 16.848 1931 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 5YKH COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 20-OCT-17. REMARK 100 THE DEPOSITION ID IS D_1300005443. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 05-OCT-12 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 4.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRF REMARK 200 BEAMLINE : BL17U1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.97915 REMARK 200 MONOCHROMATOR : DOUBLE CRYSTAL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315R REMARK 200 INTENSITY-INTEGRATION SOFTWARE : NULL REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 14533 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.450 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.5 REMARK 200 DATA REDUNDANCY : 6.900 REMARK 200 R MERGE (I) : 0.10600 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 14.9000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.45 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.49 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 REMARK 200 DATA REDUNDANCY IN SHELL : 7.30 REMARK 200 R MERGE FOR SHELL (I) : 0.46100 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 8.200 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: 1M8Z REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 40.26 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.06 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 20% PEG 3350, 0.25M NAH2PO4, PH 4.5, REMARK 280 VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,Y,-Z REMARK 290 3555 X+1/2,Y+1/2,Z REMARK 290 4555 -X+1/2,Y+1/2,-Z 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 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 3 1.000000 0.000000 0.000000 101.52600 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 16.46750 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 101.52600 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 16.46750 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 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 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: MONOMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 210 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 18900 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -5.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A 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 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 MET A -22 REMARK 465 GLY A -21 REMARK 465 SER A -20 REMARK 465 SER A -19 REMARK 465 HIS A -18 REMARK 465 HIS A -17 REMARK 465 HIS A -16 REMARK 465 HIS A -15 REMARK 465 HIS A -14 REMARK 465 HIS A -13 REMARK 465 SER A -12 REMARK 465 GLN A -11 REMARK 465 ASP A -10 REMARK 465 LEU A -9 REMARK 465 GLU A -8 REMARK 465 VAL A -7 REMARK 465 LEU A -6 REMARK 465 PHE A -5 REMARK 465 GLN A -4 REMARK 465 GLY A -3 REMARK 465 PRO A -2 REMARK 465 HIS A -1 REMARK 465 MET A 0 REMARK 465 MET A 320 REMARK 465 ASN A 321 REMARK 465 ASP A 322 REMARK 465 GLY A 323 REMARK 465 PRO A 324 REMARK 465 HIS A 325 REMARK 465 ASN A 387 REMARK 465 GLY A 388 REMARK 465 VAL A 389 REMARK 465 ASP A 390 REMARK 465 LEU A 391 REMARK 465 GLY A 392 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue PO4 A 401 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue PO4 A 402 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue PO4 A 403 DBREF 5YKH A 1 128 UNP Q14671 PUM1_HUMAN 828 955 DBREF 5YKH A 129 243 UNP Q14671 PUM1_HUMAN 1028 1142 DBREF 5YKH A 244 392 UNP Q14671 PUM1_HUMAN 1028 1176 SEQADV 5YKH MET A -22 UNP Q14671 EXPRESSION TAG SEQADV 5YKH GLY A -21 UNP Q14671 EXPRESSION TAG SEQADV 5YKH SER A -20 UNP Q14671 EXPRESSION TAG SEQADV 5YKH SER A -19 UNP Q14671 EXPRESSION TAG SEQADV 5YKH HIS A -18 UNP Q14671 EXPRESSION TAG SEQADV 5YKH HIS A -17 UNP Q14671 EXPRESSION TAG SEQADV 5YKH HIS A -16 UNP Q14671 EXPRESSION TAG SEQADV 5YKH HIS A -15 UNP Q14671 EXPRESSION TAG SEQADV 5YKH HIS A -14 UNP Q14671 EXPRESSION TAG SEQADV 5YKH HIS A -13 UNP Q14671 EXPRESSION TAG SEQADV 5YKH SER A -12 UNP Q14671 EXPRESSION TAG SEQADV 5YKH GLN A -11 UNP Q14671 EXPRESSION TAG SEQADV 5YKH ASP A -10 UNP Q14671 EXPRESSION TAG SEQADV 5YKH LEU A -9 UNP Q14671 EXPRESSION TAG SEQADV 5YKH GLU A -8 UNP Q14671 EXPRESSION TAG SEQADV 5YKH VAL A -7 UNP Q14671 EXPRESSION TAG SEQADV 5YKH LEU A -6 UNP Q14671 EXPRESSION TAG SEQADV 5YKH PHE A -5 UNP Q14671 EXPRESSION TAG SEQADV 5YKH GLN A -4 UNP Q14671 EXPRESSION TAG SEQADV 5YKH GLY A -3 UNP Q14671 EXPRESSION TAG SEQADV 5YKH PRO A -2 UNP Q14671 EXPRESSION TAG SEQADV 5YKH HIS A -1 UNP Q14671 EXPRESSION TAG SEQADV 5YKH MET A 0 UNP Q14671 EXPRESSION TAG SEQRES 1 A 415 MET GLY SER SER HIS HIS HIS HIS HIS HIS SER GLN ASP SEQRES 2 A 415 LEU GLU VAL LEU PHE GLN GLY PRO HIS MET GLY ARG SER SEQRES 3 A 415 ARG LEU LEU GLU ASP PHE ARG ASN ASN ARG TYR PRO ASN SEQRES 4 A 415 LEU GLN LEU ARG GLU ILE ALA GLY HIS ILE MET GLU PHE SEQRES 5 A 415 SER GLN ASP GLN HIS GLY SER ARG PHE ILE GLN LEU LYS SEQRES 6 A 415 LEU GLU ARG ALA THR PRO ALA GLU ARG GLN LEU VAL PHE SEQRES 7 A 415 ASN GLU ILE LEU GLN ALA ALA TYR GLN LEU MET VAL ASP SEQRES 8 A 415 VAL PHE GLY ASN TYR VAL ILE GLN LYS PHE PHE GLU PHE SEQRES 9 A 415 GLY SER LEU GLU GLN LYS LEU ALA LEU ALA GLU ARG ILE SEQRES 10 A 415 ARG GLY HIS VAL LEU SER LEU ALA LEU GLN MET TYR GLY SEQRES 11 A 415 CYS ARG VAL ILE GLN LYS ALA LEU GLU PHE ILE PRO SER SEQRES 12 A 415 ASP GLN GLN ASN GLU MET VAL ARG GLU LEU HIS GLN HIS SEQRES 13 A 415 THR GLU GLN LEU VAL GLN ASP GLN TYR GLY ASN TYR VAL SEQRES 14 A 415 ILE GLN HIS VAL LEU GLU HIS GLY ARG PRO GLU ASP LYS SEQRES 15 A 415 SER LYS ILE VAL ALA GLU ILE ARG GLY ASN VAL LEU VAL SEQRES 16 A 415 LEU SER GLN HIS LYS PHE ALA SER ASN VAL VAL GLU LYS SEQRES 17 A 415 CYS VAL THR HIS ALA SER ARG THR GLU ARG ALA VAL LEU SEQRES 18 A 415 ILE ASP GLU VAL CYS THR MET ASN ASP GLY PRO HIS SER SEQRES 19 A 415 ALA LEU TYR THR MET MET LYS ASP GLN TYR ALA ASN TYR SEQRES 20 A 415 VAL VAL GLN LYS MET ILE ASP VAL ALA GLU PRO GLY GLN SEQRES 21 A 415 ARG LYS ILE VAL MET HIS GLU LEU HIS GLN HIS THR GLU SEQRES 22 A 415 GLN LEU VAL GLN ASP GLN TYR GLY ASN TYR VAL ILE GLN SEQRES 23 A 415 HIS VAL LEU GLU HIS GLY ARG PRO GLU ASP LYS SER LYS SEQRES 24 A 415 ILE VAL ALA GLU ILE ARG GLY ASN VAL LEU VAL LEU SER SEQRES 25 A 415 GLN HIS LYS PHE ALA SER ASN VAL VAL GLU LYS CYS VAL SEQRES 26 A 415 THR HIS ALA SER ARG THR GLU ARG ALA VAL LEU ILE ASP SEQRES 27 A 415 GLU VAL CYS THR MET ASN ASP GLY PRO HIS SER ALA LEU SEQRES 28 A 415 TYR THR MET MET LYS ASP GLN TYR ALA ASN TYR VAL VAL SEQRES 29 A 415 GLN LYS MET ILE ASP VAL ALA GLU PRO GLY GLN ARG LYS SEQRES 30 A 415 ILE VAL MET HIS LYS ILE ARG PRO HIS ILE ALA THR LEU SEQRES 31 A 415 ARG LYS TYR THR TYR GLY LYS HIS ILE LEU ALA LYS LEU SEQRES 32 A 415 GLU LYS TYR TYR MET LYS ASN GLY VAL ASP LEU GLY HET PO4 A 401 5 HET PO4 A 402 5 HET PO4 A 403 5 HETNAM PO4 PHOSPHATE ION FORMUL 2 PO4 3(O4 P 3-) FORMUL 5 HOH *71(H2 O) HELIX 1 AA1 SER A 3 ASN A 11 1 9 HELIX 2 AA2 GLN A 18 ALA A 23 5 6 HELIX 3 AA3 HIS A 25 GLN A 31 1 7 HELIX 4 AA4 ASP A 32 GLU A 44 1 13 HELIX 5 AA5 THR A 47 LEU A 59 1 13 HELIX 6 AA6 ALA A 61 VAL A 67 1 7 HELIX 7 AA7 PHE A 70 GLY A 82 1 13 HELIX 8 AA8 SER A 83 ARG A 95 1 13 HELIX 9 AA9 HIS A 97 LEU A 103 1 7 HELIX 10 AB1 TYR A 106 ILE A 118 1 13 HELIX 11 AB2 PRO A 119 HIS A 131 1 13 HELIX 12 AB3 HIS A 133 GLN A 139 1 7 HELIX 13 AB4 TYR A 142 GLY A 154 1 13 HELIX 14 AB5 ARG A 155 ARG A 167 1 13 HELIX 15 AB6 ASN A 169 HIS A 176 1 8 HELIX 16 AB7 PHE A 178 ALA A 190 1 13 HELIX 17 AB8 SER A 191 CYS A 203 1 13 HELIX 18 AB9 SER A 211 LYS A 218 1 8 HELIX 19 AC1 ALA A 222 ALA A 233 1 12 HELIX 20 AC2 GLU A 234 HIS A 248 1 15 HELIX 21 AC3 HIS A 248 VAL A 253 1 6 HELIX 22 AC4 TYR A 257 GLY A 269 1 13 HELIX 23 AC5 ARG A 270 ARG A 282 1 13 HELIX 24 AC6 ASN A 284 GLN A 290 1 7 HELIX 25 AC7 ALA A 294 ALA A 305 1 12 HELIX 26 AC8 SER A 306 THR A 319 1 14 HELIX 27 AC9 ALA A 327 ASP A 334 1 8 HELIX 28 AD1 TYR A 336 ALA A 348 1 13 HELIX 29 AD2 GLU A 349 ARG A 361 1 13 HELIX 30 AD3 HIS A 363 ARG A 368 1 6 HELIX 31 AD4 LYS A 369 THR A 371 5 3 HELIX 32 AD5 TYR A 372 GLU A 381 1 10 SITE 1 AC1 4 ARG A 192 HIS A 210 HIS A 248 HOH A 517 SITE 1 AC2 5 SER A 3 ARG A 4 LEU A 5 HIS A 25 SITE 2 AC2 5 HOH A 502 SITE 1 AC3 2 ARG A 37 LYS A 77 CRYST1 203.052 32.935 61.364 90.00 105.31 90.00 C 1 2 1 4 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 0.004925 0.000000 0.001348 0.00000 SCALE2 0.000000 0.030363 0.000000 0.00000 SCALE3 0.000000 0.000000 0.016896 0.00000