PDB Short entry for 1QTX HEADER SIGNALING PROTEIN 29-JUN-99 1QTX TITLE THE 1.65 ANGSTROM STRUCTURE OF CALMODULIN RS20 PEPTIDE COMPLEX COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEIN (CALMODULIN); COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MOL_ID: 2; COMPND 6 MOLECULE: PROTEIN (RS20); COMPND 7 CHAIN: B; COMPND 8 FRAGMENT: CALMODULIN BINDING REGION FROM SMOOTH MUSCLE/NONMUSCLE COMPND 9 MYOSIN LIGHT CHAIN KINASE; COMPND 10 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 6 EXPRESSION_SYSTEM_STRAIN: UT481; SOURCE 7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PVUCH-1; SOURCE 9 OTHER_DETAILS: SYNTHETIC CONSTRUCT; SOURCE 10 MOL_ID: 2; SOURCE 11 SYNTHETIC: YES; SOURCE 12 OTHER_DETAILS: PEPTIDE ANALOG OF THE CALMODULIN RECOGNITION REGION SOURCE 13 OF CHICKEN SMOOTH MUSCLE/ NONMUSCLE MYOSIN LIGHT CHAIN KINASE KEYWDS CALMODULIN, CALCIUM BINDING, HELIX-LOOP-HELIX, SIGNALING, COMPLEX KEYWDS 2 (CALCIUM- BINDING PROTEIN-PEPTIDE), SIGNALING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR S.WEIGAND,W.F.ANDERSON REVDAT 3 16-AUG-23 1QTX 1 REMARK LINK REVDAT 2 24-FEB-09 1QTX 1 VERSN REVDAT 1 24-JUN-03 1QTX 0 JRNL AUTH S.WEIGAND,L.SHUVALOVA,T.J.LUKAS,S.MIRZOEVA,D.M.WATTERSON, JRNL AUTH 2 W.F.ANDERSON JRNL TITL HIGH RESOLUTION STRUCTURE OF A CALMODULIN RS20 PEPTIDE JRNL TITL 2 COMPLEX JRNL REF TO BE PUBLISHED JRNL REFN REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH S.MIRZOEVA,S.WEIGAND,T.J.LUKAS,L.SHUVALOVA,W.F.ANDERSON, REMARK 1 AUTH 2 D.M.WATTERSON REMARK 1 TITL ANALYSIS OF THE FUNCTIONAL COUPLING BETWEEN CALMODULIN S REMARK 1 TITL 2 CALCIUM BINDING AND PEPTIDE RECOGNITION PROPERTIES REMARK 1 REF BIOCHEMISTRY V. 38 3936 1999 REMARK 1 REFN ISSN 0006-2960 REMARK 1 DOI 10.1021/BI9821263 REMARK 1 REFERENCE 2 REMARK 1 AUTH W.E.MEADOR,A.R.MEANS,F.A.QUIOCHO REMARK 1 TITL TARGET ENZYME RECOGNITION BY CALMODULIN: 2.4 A STRUCTURE OF REMARK 1 TITL 2 A CALMODULIN- PEPTIDE COMPLEX REMARK 1 REF SCIENCE V. 257 1251 1992 REMARK 1 REFN ISSN 0036-8075 REMARK 2 REMARK 2 RESOLUTION. 1.65 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 0.3 REMARK 3 AUTHORS : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE- REMARK 3 : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU, REMARK 3 : READ,RICE,SIMONSON,WARREN REMARK 3 REMARK 3 REFINEMENT TARGET : ENGH, R.A. AND HUBER, R. (1991). ACTA CRYST. REMARK 3 A47, 392-400. REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.65 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 29.60 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1176942.780 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 87.3 REMARK 3 NUMBER OF REFLECTIONS : 17495 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) : 0.185 REMARK 3 FREE R VALUE : 0.214 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.300 REMARK 3 FREE R VALUE TEST SET COUNT : 1801 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.005 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 16 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.65 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.69 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 60.80 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 671 REMARK 3 BIN R VALUE (WORKING SET) : 0.2370 REMARK 3 BIN FREE R VALUE : 0.2490 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 10.90 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 82 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.028 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1320 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 4 REMARK 3 SOLVENT ATOMS : 328 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 19.60 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 22.20 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.00000 REMARK 3 B22 (A**2) : 0.00000 REMARK 3 B33 (A**2) : 0.00000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.17 REMARK 3 ESD FROM SIGMAA (A) : 0.13 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) : 0.20 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.14 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.006 REMARK 3 BOND ANGLES (DEGREES) : 1.200 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 20.10 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.800 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) : 1.060 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 1.790 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 1.650 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 2.550 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : NULL 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 : PROTEIN_REP.PA REMARK 3 PARAMETER FILE 2 : ION.PARAM REMARK 3 PARAMETER FILE 3 : WATER_REP.PARA REMARK 3 PARAMETER FILE 4 : MYCNSLIB:PATCHES.PARAM REMARK 3 PARAMETER FILE 5 : NULL REMARK 3 TOPOLOGY FILE 1 : MYCNSLIB:PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER.TOP REMARK 3 TOPOLOGY FILE 3 : ION.TOP REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 TOPOLOGY FILE 5 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1QTX COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 30-JUN-99. REMARK 100 THE DEPOSITION ID IS D_1000009262. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 08-JAN-96; 09-FEB-96; 28-FEB-96 REMARK 200 TEMPERATURE (KELVIN) : 95; 96; 92 REMARK 200 PH : 4.6 REMARK 200 NUMBER OF CRYSTALS USED : 3 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N; N; N REMARK 200 RADIATION SOURCE : ROTATING ANODE; NULL; NULL REMARK 200 BEAMLINE : NULL; NULL; NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU RU200; NULL; NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M; NULL; NULL REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418; NULL; NULL REMARK 200 MONOCHROMATOR : FILTER; NULL; NULL REMARK 200 OPTICS : COLLIMATOR; NULL; NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE; IMAGE PLATE; IMAGE REMARK 200 PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IIC; RIGAKU RAXIS REMARK 200 IIC; RIGAKU RAXIS IIC REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 19966 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.530 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 79.3 REMARK 200 DATA REDUNDANCY : 8.400 REMARK 200 R MERGE (I) : 0.10500 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 19.6000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.65 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.68 REMARK 200 COMPLETENESS FOR SHELL (%) : 59.4 REMARK 200 DATA REDUNDANCY IN SHELL : 5.50 REMARK 200 R MERGE FOR SHELL (I) : 0.22100 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 6.900 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH; NULL; NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: PDB ENTRY 1VRM CHAIN A AND CHAIN B REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 41.80 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.11 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 20% (W/V) PEG 8000, 100 MM SODIUM REMARK 280 ACETATE 5 MM CALCIUM CHLORIDE 0.01% (W/V) SODIUM AZIDE PH = 4.6, REMARK 280 VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 277K, PH 4.6 REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 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 35.02300 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 20.76400 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 27.67200 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 20.76400 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 35.02300 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 27.67200 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 3520 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 9090 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -70.0 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 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 LYS A 77 CG CD CE NZ 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 SER B 19 -152.29 56.83 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 CA A 151 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 20 OD1 REMARK 620 2 ASP A 22 OD1 74.0 REMARK 620 3 ASP A 24 OD1 81.5 81.2 REMARK 620 4 THR A 26 O 81.7 152.6 82.9 REMARK 620 5 GLU A 31 OE1 118.4 130.6 144.6 72.5 REMARK 620 6 GLU A 31 OE2 98.9 79.3 159.6 117.5 52.3 REMARK 620 7 HOH A 585 O 155.1 83.2 85.5 117.6 84.0 86.1 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 152 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 56 OD1 REMARK 620 2 ASP A 58 OD1 74.3 REMARK 620 3 ASN A 60 OD1 83.8 74.9 REMARK 620 4 THR A 62 O 86.5 150.1 80.6 REMARK 620 5 GLU A 67 OE1 107.5 128.5 155.6 78.7 REMARK 620 6 GLU A 67 OE2 88.3 76.7 151.6 126.2 52.3 REMARK 620 7 HOH A 586 O 158.2 84.0 93.1 114.4 83.9 84.1 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 153 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 93 OD1 REMARK 620 2 ASP A 95 OD1 87.0 REMARK 620 3 ASN A 97 OD1 84.0 75.4 REMARK 620 4 PHE A 99 O 85.3 156.9 82.2 REMARK 620 5 GLU A 104 OE1 97.1 127.1 157.5 75.5 REMARK 620 6 GLU A 104 OE2 98.7 75.3 150.3 127.4 51.9 REMARK 620 7 HOH A 587 O 162.3 106.1 87.9 78.1 84.5 96.1 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 154 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 129 OD1 REMARK 620 2 ASP A 131 OD1 79.7 REMARK 620 3 ASP A 133 OD1 84.5 78.2 REMARK 620 4 GLN A 135 O 84.2 151.4 76.9 REMARK 620 5 GLU A 140 OE1 108.9 126.4 153.0 81.2 REMARK 620 6 GLU A 140 OE2 87.9 76.9 154.9 126.2 51.6 REMARK 620 7 HOH A 588 O 162.4 86.5 82.0 103.5 88.1 99.6 REMARK 620 N 1 2 3 4 5 6 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 151 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 152 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 153 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 154 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1VRK RELATED DB: PDB REMARK 900 1.9 A E84K-CAM:RS20 REMARK 900 RELATED ID: 1QS3 RELATED DB: PDB REMARK 900 1.8 A CAM:RS20 DBREF 1QTX A 1 148 GB 208092 AAA72492 2 149 DBREF 1QTX B 1 20 UNP P11799 MYLK_CHICK 1731 1750 SEQRES 1 A 148 ALA ASP GLN LEU THR ASP GLU GLN ILE ALA GLU PHE LYS SEQRES 2 A 148 GLU ALA PHE SER LEU PHE ASP LYS ASP GLY ASP GLY THR SEQRES 3 A 148 ILE THR THR LYS GLU LEU GLY THR VAL MET ARG SER LEU SEQRES 4 A 148 GLY GLN ASN PRO THR GLU ALA GLU LEU GLN ASP MET ILE SEQRES 5 A 148 ASN GLU VAL ASP ALA ASP GLY ASN GLY THR ILE ASP PHE SEQRES 6 A 148 PRO GLU PHE LEU ASN LEU MET ALA ARG LYS MET LYS ASP SEQRES 7 A 148 THR ASP SER GLU GLU GLU LEU LYS GLU ALA PHE ARG VAL SEQRES 8 A 148 PHE ASP LYS ASP GLY ASN GLY PHE ILE SER ALA ALA GLU SEQRES 9 A 148 LEU ARG HIS VAL MET THR ASN LEU GLY GLU LYS LEU THR SEQRES 10 A 148 ASP GLU GLU VAL ASP GLU MET ILE ARG GLU ALA ASP VAL SEQRES 11 A 148 ASP GLY ASP GLY GLN VAL ASN TYR GLU GLU PHE VAL GLN SEQRES 12 A 148 VAL MET MET ALA LYS SEQRES 1 B 21 ARG ARG LYS TRP GLN LYS THR GLY HIS ALA VAL ARG ALA SEQRES 2 B 21 ILE GLY ARG LEU SER SER SER NH2 HET NH2 B 21 2 HET CA A 151 1 HET CA A 152 1 HET CA A 153 1 HET CA A 154 1 HETNAM NH2 AMINO GROUP HETNAM CA CALCIUM ION FORMUL 2 NH2 H2 N FORMUL 3 CA 4(CA 2+) FORMUL 7 HOH *328(H2 O) HELIX 1 1 THR A 5 ASP A 20 1 16 HELIX 2 2 THR A 28 LEU A 39 1 12 HELIX 3 3 THR A 44 ASP A 56 1 13 HELIX 4 4 PHE A 65 ARG A 74 1 10 HELIX 5 5 GLU A 82 ASP A 93 1 12 HELIX 6 6 SER A 101 GLY A 113 1 13 HELIX 7 7 THR A 117 ASP A 129 1 13 HELIX 8 8 TYR A 138 MET A 146 1 9 HELIX 9 9 ARG B 1 SER B 18 1 18 SHEET 1 A 2 THR A 26 ILE A 27 0 SHEET 2 A 2 ILE A 63 ASP A 64 -1 N ILE A 63 O ILE A 27 SHEET 1 B 2 PHE A 99 ILE A 100 0 SHEET 2 B 2 VAL A 136 ASN A 137 -1 O VAL A 136 N ILE A 100 LINK C BSER B 20 N BNH2 B 21 1555 1555 1.33 LINK C ASER B 20 N ANH2 B 21 1555 1555 1.33 LINK OD1 ASP A 20 CA CA A 151 1555 1555 2.29 LINK OD1 ASP A 22 CA CA A 151 1555 1555 2.42 LINK OD1 ASP A 24 CA CA A 151 1555 1555 2.29 LINK O THR A 26 CA CA A 151 1555 1555 2.38 LINK OE1 GLU A 31 CA CA A 151 1555 1555 2.46 LINK OE2 GLU A 31 CA CA A 151 1555 1555 2.52 LINK OD1 ASP A 56 CA CA A 152 1555 1555 2.28 LINK OD1 ASP A 58 CA CA A 152 1555 1555 2.44 LINK OD1 ASN A 60 CA CA A 152 1555 1555 2.33 LINK O THR A 62 CA CA A 152 1555 1555 2.36 LINK OE1 GLU A 67 CA CA A 152 1555 1555 2.40 LINK OE2 GLU A 67 CA CA A 152 1555 1555 2.57 LINK OD1 ASP A 93 CA CA A 153 1555 1555 2.25 LINK OD1 ASP A 95 CA CA A 153 1555 1555 2.39 LINK OD1 ASN A 97 CA CA A 153 1555 1555 2.43 LINK O PHE A 99 CA CA A 153 1555 1555 2.30 LINK OE1 GLU A 104 CA CA A 153 1555 1555 2.48 LINK OE2 GLU A 104 CA CA A 153 1555 1555 2.56 LINK OD1 ASP A 129 CA CA A 154 1555 1555 2.34 LINK OD1 ASP A 131 CA CA A 154 1555 1555 2.34 LINK OD1 ASP A 133 CA CA A 154 1555 1555 2.36 LINK O GLN A 135 CA CA A 154 1555 1555 2.40 LINK OE1 GLU A 140 CA CA A 154 1555 1555 2.40 LINK OE2 GLU A 140 CA CA A 154 1555 1555 2.62 LINK CA CA A 151 O HOH A 585 1555 1555 2.47 LINK CA CA A 152 O HOH A 586 1555 1555 2.35 LINK CA CA A 153 O HOH A 587 1555 1555 2.47 LINK CA CA A 154 O HOH A 588 1555 1555 2.37 SITE 1 AC1 6 ASP A 20 ASP A 22 ASP A 24 THR A 26 SITE 2 AC1 6 GLU A 31 HOH A 585 SITE 1 AC2 6 ASP A 56 ASP A 58 ASN A 60 THR A 62 SITE 2 AC2 6 GLU A 67 HOH A 586 SITE 1 AC3 6 ASP A 93 ASP A 95 ASN A 97 PHE A 99 SITE 2 AC3 6 GLU A 104 HOH A 587 SITE 1 AC4 6 ASP A 129 ASP A 131 ASP A 133 GLN A 135 SITE 2 AC4 6 GLU A 140 HOH A 588 CRYST1 70.046 55.344 41.528 90.00 90.00 90.00 P 21 21 21 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 0.014276 0.000000 0.000000 0.00000 SCALE2 0.000000 0.018069 0.000000 0.00000 SCALE3 0.000000 0.000000 0.024080 0.00000