HEADER CELL CYCLE INHIBITOR 25-OCT-97 1IHB TITLE CRYSTAL STRUCTURE OF P18-INK4C(INK6) COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYCLIN-DEPENDENT KINASE 6 INHIBITOR; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: P18-INK4C(INK6); COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 CELL_LINE: BL21; SOURCE 6 GENE: P18-INK4C(INK6); SOURCE 7 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 8 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 9 EXPRESSION_SYSTEM_STRAIN: BL21 (DE3); SOURCE 10 EXPRESSION_SYSTEM_VECTOR: PRSETA; SOURCE 11 EXPRESSION_SYSTEM_PLASMID: BL21; SOURCE 12 EXPRESSION_SYSTEM_GENE: P18-INK4C(INK6) KEYWDS CELL CYCLE INHIBITOR, P18-INK4C(INK6), ANKYRIN REPEAT, CDK 4/6 KEYWDS 2 INHIBITOR EXPDTA X-RAY DIFFRACTION AUTHOR V.RAVICHANDRAN,K.SWAMINATHAN,R.MARMORSTEIN REVDAT 4 07-FEB-24 1IHB 1 REMARK REVDAT 3 24-FEB-09 1IHB 1 VERSN REVDAT 2 13-JAN-99 1IHB 1 COMPND REMARK SOURCE JRNL REVDAT 2 2 1 KEYWDS REVDAT 1 02-DEC-98 1IHB 0 JRNL AUTH R.VENKATARAMANI,K.SWAMINATHAN,R.MARMORSTEIN JRNL TITL CRYSTAL STRUCTURE OF THE CDK4/6 INHIBITORY PROTEIN P18INK4C JRNL TITL 2 PROVIDES INSIGHTS INTO ANKYRIN-LIKE REPEAT JRNL TITL 3 STRUCTURE/FUNCTION AND TUMOR-DERIVED P16INK4 MUTATIONS. JRNL REF NAT.STRUCT.BIOL. V. 5 74 1998 JRNL REFN ISSN 1072-8368 JRNL PMID 9437433 JRNL DOI 10.1038/NSB0198-74 REMARK 2 REMARK 2 RESOLUTION. 1.95 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.851 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.95 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 8.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 10000000.000 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0010 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 87.6 REMARK 3 NUMBER OF REFLECTIONS : 22215 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 SET) : 0.209 REMARK 3 FREE R VALUE : 0.289 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 9.900 REMARK 3 FREE R VALUE TEST SET COUNT : 2208 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.006 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 6 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.95 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.07 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 54.10 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 2048 REMARK 3 BIN R VALUE (WORKING SET) : 0.2650 REMARK 3 BIN FREE R VALUE : 0.3280 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 8.90 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 200 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.023 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2382 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 207 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 17.40 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 18.10 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 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.22 REMARK 3 ESD FROM SIGMAA (A) : 0.21 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.31 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.20 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.009 REMARK 3 BOND ANGLES (DEGREES) : 1.500 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 22.10 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.480 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 1.890 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 2.720 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 3.690 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 5.580 ; 2.500 REMARK 3 REMARK 3 NCS MODEL : NULL REMARK 3 REMARK 3 NCS RESTRAINTS. RMS SIGMA/WEIGHT REMARK 3 GROUP 1 POSITIONAL (A) : NULL ; NULL REMARK 3 GROUP 1 B-FACTOR (A**2) : NULL ; NULL REMARK 3 REMARK 3 PARAMETER FILE 1 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: BULK SOLVENT CORRECTION APPLIED REMARK 4 REMARK 4 1IHB COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000174159. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 18-AUG-96 REMARK 200 TEMPERATURE (KELVIN) : 93 REMARK 200 PH : 8.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : NULL REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : MSC/YALE MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 24019 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.950 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 90.3 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.04900 REMARK 200 FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : NULL REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MIR REMARK 200 SOFTWARE USED: PHASES REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 44.40 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.30 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: VAPOR DIFFUSION, 4 DEG. C, 2 REMARK 280 MICROLITER HANGING DROP CONTAINING 5 MG/ML PROTEIN, 20 MM TRIS REMARK 280 (PH 8.5), 25 MM (NH4)2 HPO4, 0.5 MM DDT, 7% PEG 6K, 1 MM NACL REMARK 280 EQUILIBRATED OVER A RESERVOIR CONTAINING 14% PEG 6K AND 2 M REMARK 280 NACL. WITHIN 8 DAYS, 0.2 X 0.2 X 0.4 MM CRYSTALS., VAPOR REMARK 280 DIFFUSION - HANGING DROP, VAPOR DIFFUSION, HANGING DROP REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 2 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 27.75500 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 75.85000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 27.75500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 75.85000 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: DIMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, 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 A 1 REMARK 465 ALA A 2 REMARK 465 GLU A 3 REMARK 465 PRO A 4 REMARK 465 ALA A 161 REMARK 465 GLY A 162 REMARK 465 MET B 1 REMARK 465 ALA B 2 REMARK 465 GLU B 3 REMARK 465 PRO B 4 REMARK 465 TRP B 5 REMARK 465 GLY B 6 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 N TRP A 5 O HOH A 187 2.18 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 O ARG A 145 NH2 ARG B 54 3546 2.17 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 THR A 69 CB - CA - C ANGL. DEV. = -23.6 DEGREES REMARK 500 ARG B 54 NE - CZ - NH1 ANGL. DEV. = 4.4 DEGREES REMARK 500 ARG B 54 NE - CZ - NH2 ANGL. DEV. = -3.0 DEGREES REMARK 500 REMARK 500 REMARK: NULL 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 ASN A 35 -165.88 -74.45 REMARK 500 ASN A 159 59.48 -150.39 REMARK 500 ARG B 149 72.47 -101.12 REMARK 500 REMARK 500 REMARK: NULL DBREF 1IHB A 1 162 UNP P42773 CDN2C_HUMAN 1 162 DBREF 1IHB B 1 162 UNP P42773 CDN2C_HUMAN 1 162 SEQRES 1 A 162 MET ALA GLU PRO TRP GLY ASN GLU LEU ALA SER ALA ALA SEQRES 2 A 162 ALA ARG GLY ASP LEU GLU GLN LEU THR SER LEU LEU GLN SEQRES 3 A 162 ASN ASN VAL ASN VAL ASN ALA GLN ASN GLY PHE GLY ARG SEQRES 4 A 162 THR ALA LEU GLN VAL MET LYS LEU GLY ASN PRO GLU ILE SEQRES 5 A 162 ALA ARG ARG LEU LEU LEU ARG GLY ALA ASN PRO ASP LEU SEQRES 6 A 162 LYS ASP ARG THR GLY PHE ALA VAL ILE HIS ASP ALA ALA SEQRES 7 A 162 ARG ALA GLY PHE LEU ASP THR LEU GLN THR LEU LEU GLU SEQRES 8 A 162 PHE GLN ALA ASP VAL ASN ILE GLU ASP ASN GLU GLY ASN SEQRES 9 A 162 LEU PRO LEU HIS LEU ALA ALA LYS GLU GLY HIS LEU ARG SEQRES 10 A 162 VAL VAL GLU PHE LEU VAL LYS HIS THR ALA SER ASN VAL SEQRES 11 A 162 GLY HIS ARG ASN HIS LYS GLY ASP THR ALA CYS ASP LEU SEQRES 12 A 162 ALA ARG LEU TYR GLY ARG ASN GLU VAL VAL SER LEU MET SEQRES 13 A 162 GLN ALA ASN GLY ALA GLY SEQRES 1 B 162 MET ALA GLU PRO TRP GLY ASN GLU LEU ALA SER ALA ALA SEQRES 2 B 162 ALA ARG GLY ASP LEU GLU GLN LEU THR SER LEU LEU GLN SEQRES 3 B 162 ASN ASN VAL ASN VAL ASN ALA GLN ASN GLY PHE GLY ARG SEQRES 4 B 162 THR ALA LEU GLN VAL MET LYS LEU GLY ASN PRO GLU ILE SEQRES 5 B 162 ALA ARG ARG LEU LEU LEU ARG GLY ALA ASN PRO ASP LEU SEQRES 6 B 162 LYS ASP ARG THR GLY PHE ALA VAL ILE HIS ASP ALA ALA SEQRES 7 B 162 ARG ALA GLY PHE LEU ASP THR LEU GLN THR LEU LEU GLU SEQRES 8 B 162 PHE GLN ALA ASP VAL ASN ILE GLU ASP ASN GLU GLY ASN SEQRES 9 B 162 LEU PRO LEU HIS LEU ALA ALA LYS GLU GLY HIS LEU ARG SEQRES 10 B 162 VAL VAL GLU PHE LEU VAL LYS HIS THR ALA SER ASN VAL SEQRES 11 B 162 GLY HIS ARG ASN HIS LYS GLY ASP THR ALA CYS ASP LEU SEQRES 12 B 162 ALA ARG LEU TYR GLY ARG ASN GLU VAL VAL SER LEU MET SEQRES 13 B 162 GLN ALA ASN GLY ALA GLY FORMUL 3 HOH *207(H2 O) HELIX 1 1 GLY A 6 ARG A 15 1 10 HELIX 2 2 LEU A 18 GLN A 26 1 9 HELIX 3 3 ALA A 41 VAL A 44 1 4 HELIX 4 4 PRO A 50 LEU A 58 1 9 HELIX 5 5 VAL A 73 ALA A 80 1 8 HELIX 6 6 LEU A 83 GLU A 91 1 9 HELIX 7 7 PRO A 106 LYS A 112 1 7 HELIX 8 8 LEU A 116 HIS A 125 1 10 HELIX 9 9 ALA A 140 LEU A 146 1 7 HELIX 10 10 ASN A 150 ALA A 158 1 9 HELIX 11 11 GLU B 8 ALA B 14 1 7 HELIX 12 12 LEU B 18 ASN B 27 1 10 HELIX 13 13 ALA B 41 VAL B 44 1 4 HELIX 14 14 PRO B 50 LEU B 58 1 9 HELIX 15 15 VAL B 73 ALA B 80 1 8 HELIX 16 16 LEU B 83 PHE B 92 1 10 HELIX 17 17 PRO B 106 LYS B 112 1 7 HELIX 18 18 LEU B 116 HIS B 125 1 10 HELIX 19 19 ALA B 140 LEU B 146 1 7 HELIX 20 20 ASN B 150 ASN B 159 1 10 CRYST1 55.510 151.700 40.460 90.00 90.00 90.00 P 21 21 2 8 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 0.018015 0.000000 0.000000 0.00000 SCALE2 0.000000 0.006592 0.000000 0.00000 SCALE3 0.000000 0.000000 0.024716 0.00000