PDB Short entry for 4C7N HEADER TRANSCRIPTION 23-SEP-13 4C7N TITLE CRYSTAL STRUCTURE OF THE SYNTHETIC PEPTIDE IM10 IN COMPLEX TITLE 2 WITH THE COILED-COIL REGION OF MITF COMPND MOL_ID: 1; COMPND 2 MOLECULE: MICROPHTHALMIA ASSOCIATED TRANSCRIPTION FACTOR; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: COILED-COIL REGION, RESIDUES 357-403; COMPND 5 MOL_ID: 2; COMPND 6 MOLECULE: SYNTHETIC ALPHA-HELIX, IM10; COMPND 7 CHAIN: B SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 4 ORGANISM_COMMON: HUMAN; SOURCE 5 ORGANISM_TAXID: 9606; SOURCE 6 MOL_ID: 2; SOURCE 7 SYNTHETIC: YES; SOURCE 8 ORGANISM_SCIENTIFIC: SYNTHETIC CONSTRUCT; SOURCE 9 ORGANISM_TAXID: 32630 KEYWDS TRANSCRIPTION, COILED-COIL, PROTEIN ENGINEERING EXPDTA X-RAY DIFFRACTION AUTHOR D.WOHLWEND,S.GERHARDT,T.KUEKENSHOENER,O.EINSLE REVDAT 2 11-JUN-14 4C7N 1 JRNL REVDAT 1 02-APR-14 4C7N 0 JRNL AUTH T.KUKENSHONER,D.WOHLWEND,J.NIEMOLLER,P.DONDAPATI,J.SPECK, JRNL AUTH 2 A.V.ADENIRAN,A.NIETH,S.GERHARDT,O.EINSLE,K.M.MULLER, JRNL AUTH 3 K.M.ARNDT JRNL TITL IMPROVING COILED COIL STABILITY WHILE MAINTAINING JRNL TITL 2 SPECIFICITY BY A BACTERIAL HITCHHIKER SELECTION SYSTEM. JRNL REF J.STRUCT.BIOL. V. 186 335 2014 JRNL REFN ISSN 1047-8477 JRNL PMID 24631970 JRNL DOI 10.1016/J.JSB.2014.03.002 REMARK 2 REMARK 2 RESOLUTION. 2.10 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.7.0032 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU, REMARK 3 STEINER,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) : 2.10 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 60.92 REMARK 3 DATA CUTOFF (SIGMA(F)) : NONE REMARK 3 COMPLETENESS FOR RANGE (%) : 99.89 REMARK 3 NUMBER OF REFLECTIONS : 5428 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) : 0.22872 REMARK 3 R VALUE (WORKING SET) : 0.22755 REMARK 3 FREE R VALUE : 0.25312 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.7 REMARK 3 FREE R VALUE TEST SET COUNT : 266 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) : 2.100 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.154 REMARK 3 REFLECTION IN BIN (WORKING SET) : 409 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 100.00 REMARK 3 BIN R VALUE (WORKING SET) : 0.251 REMARK 3 BIN FREE R VALUE SET COUNT : 29 REMARK 3 BIN FREE R VALUE : 0.267 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 833 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 6 REMARK 3 SOLVENT ATOMS : 49 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 38.940 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 1.82 REMARK 3 B22 (A**2) : 0.00 REMARK 3 B33 (A**2) : -1.75 REMARK 3 B12 (A**2) : 0.00 REMARK 3 B13 (A**2) : -0.68 REMARK 3 B23 (A**2) : 0.00 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.334 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.219 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.131 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 7.424 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.927 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.888 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 839 ; 0.010 ; 0.019 REMARK 3 BOND LENGTHS OTHERS (A): 853 ; 0.002 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 1116 ; 1.175 ; 1.945 REMARK 3 BOND ANGLES OTHERS (DEGREES): 1941 ; 0.734 ; 3.000 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 96 ; 2.934 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 54 ;32.762 ;23.704 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 181 ;21.166 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 13 ;17.382 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 119 ; 0.064 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 955 ; 0.003 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): 214 ; 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): 390 ; 1.214 ; 2.092 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): 389 ; 1.195 ; 2.087 REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 484 ; 1.809 ; 3.109 REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 449 ; 1.855 ; 2.466 REMARK 3 SIDE-CHAIN ANGLE REFINED 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 : 2 REMARK 3 REMARK 3 TLS GROUP : 1 REMARK 3 NUMBER OF COMPONENTS GROUP : 1 REMARK 3 COMPONENTS C SSSEQI TO C SSSEQI REMARK 3 RESIDUE RANGE : A 2 A 48 REMARK 3 ORIGIN FOR THE GROUP (A): 18.8218 14.1219 76.0408 REMARK 3 T TENSOR REMARK 3 T11: 0.0385 T22: 0.0366 REMARK 3 T33: 0.0841 T12: -0.0286 REMARK 3 T13: -0.0074 T23: 0.0069 REMARK 3 L TENSOR REMARK 3 L11: 1.1931 L22: 1.5050 REMARK 3 L33: 37.8600 L12: -0.9263 REMARK 3 L13: 5.0911 L23: -5.6165 REMARK 3 S TENSOR REMARK 3 S11: -0.1093 S12: 0.1648 S13: 0.0895 REMARK 3 S21: -0.0586 S22: -0.0390 S23: -0.1071 REMARK 3 S31: -0.2815 S32: 0.3129 S33: 0.1482 REMARK 3 REMARK 3 TLS GROUP : 2 REMARK 3 NUMBER OF COMPONENTS GROUP : 1 REMARK 3 COMPONENTS C SSSEQI TO C SSSEQI REMARK 3 RESIDUE RANGE : B 1 B 51 REMARK 3 ORIGIN FOR THE GROUP (A): 12.3574 13.7981 76.4947 REMARK 3 T TENSOR REMARK 3 T11: 0.0151 T22: 0.0569 REMARK 3 T33: 0.0721 T12: -0.0249 REMARK 3 T13: 0.0016 T23: 0.0017 REMARK 3 L TENSOR REMARK 3 L11: 1.4652 L22: 1.6778 REMARK 3 L33: 29.2477 L12: 0.4628 REMARK 3 L13: 2.6463 L23: 4.5783 REMARK 3 S TENSOR REMARK 3 S11: -0.0423 S12: 0.1590 S13: -0.0879 REMARK 3 S21: -0.0377 S22: 0.0038 S23: 0.0889 REMARK 3 S31: 0.3090 S32: -0.5731 S33: 0.0385 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 REMARK 3 RIDING POSITIONS. U VALUES WITH TLS ADDED. DISORDERED REGIONS REMARK 3 WERE NOT MODELED REMARK 4 REMARK 4 4C7N COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 23-SEP-13. REMARK 100 THE PDBE ID CODE IS EBI-58459. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 08-MAY-13 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SLS REMARK 200 BEAMLINE : X06SA REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.00799 REMARK 200 MONOCHROMATOR : FIXED-EXIT LN2 COOLED REMARK 200 DOUBLE CRYSTAL REMARK 200 MONOCHROMATOR REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL (PILATUS 6M) REMARK 200 DETECTOR MANUFACTURER : DECTRIS REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : AIMLESS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 7041 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.95 REMARK 200 RESOLUTION RANGE LOW (A) : 60.92 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.0 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.8 REMARK 200 DATA REDUNDANCY : 12.6 REMARK 200 R MERGE (I) : 0.10 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 15.60 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.95 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.18 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.7 REMARK 200 DATA REDUNDANCY IN SHELL : 13.1 REMARK 200 R MERGE FOR SHELL (I) : 0.37 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 6.60 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: SAD REMARK 200 SOFTWARE USED: AUTOSHARP REMARK 200 STARTING MODEL: NONE REMARK 200 REMARK 200 REMARK: NONE REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 38.6 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 3.5 M NAFORMATE PH 7.0 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 16.63250 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 3110 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 7890 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -102.6 KCAL/MOL 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 ALA A 1 REMARK 465 GLY A 49 REMARK 465 ALA A 50 REMARK 465 PRO A 51 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 NE2 HIS A 48 HG HG A 1049 1.77 REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG B1055 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG B1052 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG B1053 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG B1054 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG B1056 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG A1049 REMARK 999 REMARK 999 SEQUENCE REMARK 999 CHAIN A CORRESPONDS TO ISOFORM 9 OF 075030. REMARK 999 ALA1, SER2, ALA50, PRO51 ARE THE CAP RESIDUES FROM REMARK 999 THE CHEMICAL SYNTHESIS. DBREF 4C7N A 3 49 UNP O75030 MITF_HUMAN 250 296 DBREF 4C7N B 1 51 PDB 4C7N 4C7N 1 51 SEQADV 4C7N ALA A 1 UNP O75030 SEE REMARK 999 SEQADV 4C7N SER A 2 UNP O75030 SEE REMARK 999 SEQADV 4C7N ALA A 50 UNP O75030 SEE REMARK 999 SEQADV 4C7N PRO A 51 UNP O75030 SEE REMARK 999 SEQRES 1 A 51 ALA SER SER VAL ASP TYR ILE ARG LYS LEU GLN ARG GLU SEQRES 2 A 51 GLN GLN ARG ALA LYS GLU LEU GLU ASN ARG GLN LYS LYS SEQRES 3 A 51 LEU GLU HIS ALA ASN ARG HIS LEU LEU LEU ARG ILE GLN SEQRES 4 A 51 GLU LEU GLU MET GLN ALA ARG ALA HIS GLY ALA PRO SEQRES 1 B 51 ALA SER ALA ILE VAL ASP TYR GLU ARG LYS ILE GLN ARG SEQRES 2 B 51 ILE GLN GLN ARG VAL ALA GLU LEU GLU ASN THR LEU LYS SEQRES 3 B 51 LYS LEU GLU HIS GLU ASN ARG HIS LEU GLU GLN ARG ALA SEQRES 4 B 51 GLN GLU LEU GLU GLN GLN ILE ARG ALA HIS ALA GLY HET HG B1055 1 HET HG B1052 1 HET HG B1053 1 HET HG B1054 1 HET HG B1056 1 HET HG A1049 1 HETNAM HG MERCURY (II) ION FORMUL 3 HG 6(HG 2+) FORMUL 4 HOH *49(H2 O) HELIX 1 1 SER A 2 HIS A 48 1 47 HELIX 2 2 SER B 2 ARG B 47 1 46 SITE 1 AC1 4 HIS A 29 HG B1053 HOH B2003 HOH B2022 SITE 1 AC2 4 HIS A 33 HOH A2019 HIS B 30 HG B1054 SITE 1 AC3 3 HIS B 30 HG B1055 HOH B2020 SITE 1 AC4 3 HIS B 34 HG B1052 HOH B2021 SITE 1 AC5 1 GLU B 20 SITE 1 AC6 1 HIS A 48 CRYST1 23.701 33.265 61.125 90.00 94.65 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 0.042192 0.000000 0.003432 0.00000 SCALE2 0.000000 0.030062 0.000000 0.00000 SCALE3 0.000000 0.000000 0.016414 0.00000