HEADER PROTEIN BINDING 29-JUL-21 7PAC TITLE THE CRYSTAL STRUCTURE OF PDE6D IN THE APO STATE COMPND MOL_ID: 1; COMPND 2 MOLECULE: RETINAL ROD RHODOPSIN-SENSITIVE CGMP 3',5'-CYCLIC COMPND 3 PHOSPHODIESTERASE SUBUNIT DELTA; COMPND 4 CHAIN: B; COMPND 5 SYNONYM: GMP-PDE DELTA,PROTEIN P17; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: PDE6D, PDED; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 8 EXPRESSION_SYSTEM_VARIANT: RIL KEYWDS INHIBITOR, COMPLEX, PROTEIN BINDING EXPDTA X-RAY DIFFRACTION AUTHOR E.BEAUMONT,D.WILLIAMS REVDAT 2 31-JAN-24 7PAC 1 REMARK REVDAT 1 08-JUN-22 7PAC 0 JRNL AUTH S.CANOVAS NUNES,S.DE VITA,A.ANIGHORO,F.AUTELITANO, JRNL AUTH 2 E.BEAUMONT,P.KLINGBEIL,M.MCGUINNESS,B.DUVERT,C.HARRIS, JRNL AUTH 3 L.YANG,S.P.POKHAREL,C.W.CHEN,M.ERMANN,D.A.WILLIAMS,H.XU JRNL TITL VALIDATION OF A SMALL MOLECULE INHIBITOR OF PDE6D-RAS JRNL TITL 2 INTERACTION WITH FAVORABLE ANTI-LEUKEMIC EFFECTS. JRNL REF BLOOD CANCER J V. 12 64 2022 JRNL REFN ISSN 2044-5385 JRNL PMID 35422065 JRNL DOI 10.1038/S41408-022-00663-Z REMARK 2 REMARK 2 RESOLUTION. 2.05 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.8.0238 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.05 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 42.97 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 98.6 REMARK 3 NUMBER OF REFLECTIONS : 8804 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING + TEST SET) : 0.188 REMARK 3 R VALUE (WORKING SET) : 0.186 REMARK 3 FREE R VALUE : 0.232 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 470 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.05 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.10 REMARK 3 REFLECTION IN BIN (WORKING SET) : 631 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 97.81 REMARK 3 BIN R VALUE (WORKING SET) : 0.2350 REMARK 3 BIN FREE R VALUE SET COUNT : 38 REMARK 3 BIN FREE R VALUE : 0.2690 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1218 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 16 REMARK 3 SOLVENT ATOMS : 102 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 24.83 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.14000 REMARK 3 B22 (A**2) : -0.04000 REMARK 3 B33 (A**2) : 0.93000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : -2.08000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.246 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.191 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.142 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 5.305 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.951 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.915 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1279 ; 0.009 ; 0.013 REMARK 3 BOND LENGTHS OTHERS (A): 1203 ; 0.001 ; 0.017 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 1728 ; 1.496 ; 1.659 REMARK 3 BOND ANGLES OTHERS (DEGREES): 2792 ; 1.242 ; 1.597 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 152 ; 7.053 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 72 ;37.681 ;21.944 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 235 ;14.640 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 10 ;12.866 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 162 ; 0.058 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1413 ; 0.007 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): 285 ; 0.001 ; 0.020 REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.20 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING REMARK 3 POSITIONS U VALUES : REFINED INDIVIDUALLY REMARK 4 REMARK 4 7PAC COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 29-JUL-21. REMARK 100 THE DEPOSITION ID IS D_1292117351. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 21-OCT-19 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.0-8.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : DIAMOND REMARK 200 BEAMLINE : I24 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9686 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS3 6M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XIA2 REMARK 200 DATA SCALING SOFTWARE : AIMLESS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 9410 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.050 REMARK 200 RESOLUTION RANGE LOW (A) : 42.970 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.8 REMARK 200 DATA REDUNDANCY : 3.000 REMARK 200 R MERGE (I) : 0.10800 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 5.7000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.05 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.11 REMARK 200 COMPLETENESS FOR SHELL (%) : 98.2 REMARK 200 DATA REDUNDANCY IN SHELL : 3.10 REMARK 200 R MERGE FOR SHELL (I) : 0.53300 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 2.000 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: DIMPLE REMARK 200 STARTING MODEL: 5NAL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 36.10 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.92 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1M HEPES PH7.4, 20 MM MGCL2, 20 MM REMARK 280 NICL2, 20% PEG3350, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE REMARK 280 295K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,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 19.59000 REMARK 290 SMTRY3 2 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: 420 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 8330 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: 0.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: B 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 B -15 REMARK 465 GLY B -14 REMARK 465 SER B -13 REMARK 465 HIS B -12 REMARK 465 HIS B -11 REMARK 465 HIS B -10 REMARK 465 HIS B -9 REMARK 465 HIS B -8 REMARK 465 HIS B -7 REMARK 465 GLY B -6 REMARK 465 SER B -5 REMARK 465 GLU B -4 REMARK 465 ASN B -3 REMARK 465 LEU B -2 REMARK 465 TYR B -1 REMARK 465 PHE B 0 REMARK 465 GLN B 1 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: TORSION ANGLES REMARK 500 REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS: REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2) REMARK 500 REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI- REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400 REMARK 500 REMARK 500 M RES CSSEQI PSI PHI REMARK 500 LYS B 73 79.66 -155.71 REMARK 500 ASP B 136 -107.81 53.97 REMARK 500 REMARK 500 REMARK: NULL REMARK 620 REMARK 620 METAL COORDINATION REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 NI B 201 NI REMARK 620 N RES CSSEQI ATOM REMARK 620 1 SER B 2 N REMARK 620 2 SER B 2 O 81.3 REMARK 620 3 GLU B 36 OE2 52.3 30.0 REMARK 620 4 HIS B 45 ND1 56.6 26.5 4.7 REMARK 620 5 HOH B 310 O 98.0 167.6 144.9 146.9 REMARK 620 6 HOH B 334 O 89.7 82.5 77.5 75.0 85.1 REMARK 620 N 1 2 3 4 5 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue NI B 201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue EPE B 202 DBREF 7PAC B 2 150 UNP O43924 PDE6D_HUMAN 2 150 SEQADV 7PAC MET B -15 UNP O43924 INITIATING METHIONINE SEQADV 7PAC GLY B -14 UNP O43924 EXPRESSION TAG SEQADV 7PAC SER B -13 UNP O43924 EXPRESSION TAG SEQADV 7PAC HIS B -12 UNP O43924 EXPRESSION TAG SEQADV 7PAC HIS B -11 UNP O43924 EXPRESSION TAG SEQADV 7PAC HIS B -10 UNP O43924 EXPRESSION TAG SEQADV 7PAC HIS B -9 UNP O43924 EXPRESSION TAG SEQADV 7PAC HIS B -8 UNP O43924 EXPRESSION TAG SEQADV 7PAC HIS B -7 UNP O43924 EXPRESSION TAG SEQADV 7PAC GLY B -6 UNP O43924 EXPRESSION TAG SEQADV 7PAC SER B -5 UNP O43924 EXPRESSION TAG SEQADV 7PAC GLU B -4 UNP O43924 EXPRESSION TAG SEQADV 7PAC ASN B -3 UNP O43924 EXPRESSION TAG SEQADV 7PAC LEU B -2 UNP O43924 EXPRESSION TAG SEQADV 7PAC TYR B -1 UNP O43924 EXPRESSION TAG SEQADV 7PAC PHE B 0 UNP O43924 EXPRESSION TAG SEQADV 7PAC GLN B 1 UNP O43924 EXPRESSION TAG SEQRES 1 B 166 MET GLY SER HIS HIS HIS HIS HIS HIS GLY SER GLU ASN SEQRES 2 B 166 LEU TYR PHE GLN SER ALA LYS ASP GLU ARG ALA ARG GLU SEQRES 3 B 166 ILE LEU ARG GLY PHE LYS LEU ASN TRP MET ASN LEU ARG SEQRES 4 B 166 ASP ALA GLU THR GLY LYS ILE LEU TRP GLN GLY THR GLU SEQRES 5 B 166 ASP LEU SER VAL PRO GLY VAL GLU HIS GLU ALA ARG VAL SEQRES 6 B 166 PRO LYS LYS ILE LEU LYS CYS LYS ALA VAL SER ARG GLU SEQRES 7 B 166 LEU ASN PHE SER SER THR GLU GLN MET GLU LYS PHE ARG SEQRES 8 B 166 LEU GLU GLN LYS VAL TYR PHE LYS GLY GLN CYS LEU GLU SEQRES 9 B 166 GLU TRP PHE PHE GLU PHE GLY PHE VAL ILE PRO ASN SER SEQRES 10 B 166 THR ASN THR TRP GLN SER LEU ILE GLU ALA ALA PRO GLU SEQRES 11 B 166 SER GLN MET MET PRO ALA SER VAL LEU THR GLY ASN VAL SEQRES 12 B 166 ILE ILE GLU THR LYS PHE PHE ASP ASP ASP LEU LEU VAL SEQRES 13 B 166 SER THR SER ARG VAL ARG LEU PHE TYR VAL HET NI B 201 1 HET EPE B 202 15 HETNAM NI NICKEL (II) ION HETNAM EPE 4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID HETSYN EPE HEPES FORMUL 2 NI NI 2+ FORMUL 3 EPE C8 H18 N2 O4 S FORMUL 4 HOH *102(H2 O) HELIX 1 AA1 ALA B 3 GLY B 14 1 12 HELIX 2 AA2 LYS B 52 CYS B 56 5 5 HELIX 3 AA3 GLU B 114 MET B 118 5 5 HELIX 4 AA4 PRO B 119 THR B 124 1 6 SHEET 1 AA1 4 ILE B 30 GLY B 34 0 SHEET 2 AA1 4 PHE B 15 ASP B 24 -1 N LEU B 22 O LEU B 31 SHEET 3 AA1 4 VAL B 59 SER B 67 -1 O ASN B 64 N TRP B 19 SHEET 4 AA1 4 SER B 101 ILE B 109 -1 O ILE B 109 N VAL B 59 SHEET 1 AA2 5 GLU B 44 PRO B 50 0 SHEET 2 AA2 5 LEU B 138 VAL B 150 1 O PHE B 148 N VAL B 49 SHEET 3 AA2 5 VAL B 127 ASP B 135 -1 N PHE B 133 O VAL B 140 SHEET 4 AA2 5 MET B 71 PHE B 82 -1 N TYR B 81 O ILE B 128 SHEET 5 AA2 5 GLN B 85 VAL B 97 -1 O TRP B 90 N GLN B 78 LINK N SER B 2 NI NI B 201 1555 1555 2.21 LINK O SER B 2 NI NI B 201 1555 1555 1.89 LINK OE2 GLU B 36 NI NI B 201 1555 2555 2.00 LINK ND1 HIS B 45 NI NI B 201 1555 2555 2.26 LINK NI NI B 201 O HOH B 310 1555 2545 2.24 LINK NI NI B 201 O HOH B 334 1555 1555 2.13 SITE 1 AC1 2 SER B 2 HOH B 334 SITE 1 AC2 11 PHE B 92 GLU B 93 PHE B 94 TRP B 105 SITE 2 AC2 11 GLN B 106 SER B 107 HOH B 305 HOH B 320 SITE 3 AC2 11 HOH B 345 HOH B 346 HOH B 371 CRYST1 44.250 39.180 44.680 90.00 105.89 90.00 P 1 21 1 2 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 0.022599 0.000000 0.006433 0.00000 SCALE2 0.000000 0.025523 0.000000 0.00000 SCALE3 0.000000 0.000000 0.023271 0.00000