PDB Short entry for 2TN4 HEADER CONTRACTILE SYSTEM PROTEIN 18-SEP-97 2TN4 TITLE FOUR CALCIUM TNC COMPND MOL_ID: 1; COMPND 2 MOLECULE: TROPONIN C; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: TNC; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES; COMPND 7 OTHER_DETAILS: RABBIT SKELETAL TROPONIN C SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ORYCTOLAGUS CUNICULUS; SOURCE 3 ORGANISM_COMMON: RABBIT; SOURCE 4 ORGANISM_TAXID: 9986; SOURCE 5 TISSUE: MUSCLE; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS CONTRACTILE SYSTEM PROTEIN, CALCIUM REGULATION, CALMODULIN KEYWDS 2 SUPERFAMILY EXPDTA X-RAY DIFFRACTION AUTHOR M.L.LOVE,R.DOMINGUEZ,A.HOUDUSSE,C.COHEN REVDAT 4 09-AUG-23 2TN4 1 REMARK REVDAT 3 03-NOV-21 2TN4 1 REMARK SEQADV LINK REVDAT 2 24-FEB-09 2TN4 1 VERSN REVDAT 1 08-APR-98 2TN4 0 JRNL AUTH A.HOUDUSSE,M.L.LOVE,R.DOMINGUEZ,Z.GRABAREK,C.COHEN JRNL TITL STRUCTURES OF FOUR CA2+-BOUND TROPONIN C AT 2.0 A JRNL TITL 2 RESOLUTION: FURTHER INSIGHTS INTO THE CA2+-SWITCH IN THE JRNL TITL 3 CALMODULIN SUPERFAMILY. JRNL REF STRUCTURE V. 5 1695 1997 JRNL REFN ISSN 0969-2126 JRNL PMID 9438870 JRNL DOI 10.1016/S0969-2126(97)00315-8 REMARK 2 REMARK 2 RESOLUTION. 2.00 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : ARP/WARP REMARK 3 AUTHORS : LAMZIN,PERRAKIS,MORRIS REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 10.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 12305 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : A POSTERIORI REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM R VALUE (WORKING + REMARK 3 TEST SET) : NULL REMARK 3 R VALUE (WORKING SET) : 0.212 REMARK 3 FREE R VALUE : 0.265 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 615 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1225 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 7 REMARK 3 SOLVENT ATOMS : 97 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL 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) : NULL REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.012 REMARK 3 BOND ANGLES (DEGREES) : 1.300 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 22.30 REMARK 3 IMPROPER ANGLES (DEGREES) : 2.200 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; 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 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: X-PLOR (BRUNGER) ALSO WAS USED. REMARK 4 REMARK 4 2TN4 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_1000178689. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 02-MAR-97 REMARK 200 TEMPERATURE (KELVIN) : 160 REMARK 200 PH : 7.2 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : CHESS REMARK 200 BEAMLINE : A1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.910 REMARK 200 MONOCHROMATOR : 0.9 REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 12852 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.000 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 94.4 REMARK 200 DATA REDUNDANCY : 10.10 REMARK 200 R MERGE (I) : 0.10900 REMARK 200 R SYM (I) : 0.10900 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 25.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.00 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.70 REMARK 200 COMPLETENESS FOR SHELL (%) : 93.1 REMARK 200 DATA REDUNDANCY IN SHELL : 2.80 REMARK 200 R MERGE FOR SHELL (I) : 0.18500 REMARK 200 R SYM FOR SHELL (I) : 0.18500 REMARK 200 <I/SIGMA(I)> FOR SHELL : 27.00 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: PDB ENTRY 1TN4 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 53.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.60 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 54% MPD 50 MM HEPES, PH 7.2 10 MM REMARK 280 CACL2 1 MM NA-AZIDE 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 41.56000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 25.94000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 41.56000 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 25.94000 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 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 GLU A 156 REMARK 465 GLY A 157 REMARK 465 VAL A 158 REMARK 465 GLN A 159 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 O HOH A 168 O HOH A 189 2.02 REMARK 500 O HOH A 219 O HOH A 234 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 HOH A 256 O HOH A 256 2656 1.81 REMARK 500 O HOH A 248 O HOH A 255 4556 1.93 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 ASP A 2 -63.42 -17.33 REMARK 500 ASP A 27 71.42 -65.86 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY REMARK 500 REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY REMARK 500 TORSION ANGLE, C(I) - CA(I) - N(I+1) - O(I), GREATER REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 500 I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI ANGLE REMARK 500 ARG A 100 10.17 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 160 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 27 OD1 REMARK 620 2 ASP A 29 OD1 80.4 REMARK 620 3 ASP A 33 O 77.3 149.5 REMARK 620 4 GLU A 38 OE1 105.8 124.6 81.8 REMARK 620 5 GLU A 38 OE2 98.2 75.6 127.9 49.1 REMARK 620 6 HOH A 173 O 94.8 86.2 75.3 144.9 155.4 REMARK 620 7 HOH A 221 O 173.3 95.0 105.1 80.8 85.3 79.9 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 165 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR A 49 O REMARK 620 2 THR A 49 OG1 66.1 REMARK 620 3 GLU A 73 OE1 155.4 132.1 REMARK 620 4 HOH A 169 O 92.4 155.1 72.4 REMARK 620 5 HOH A 172 O 83.9 88.2 80.8 102.5 REMARK 620 6 HOH A 233 O 88.2 87.3 107.1 79.3 172.0 REMARK 620 7 HOH A 237 O 133.5 70.4 70.4 124.4 110.6 74.0 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 166 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 56 OD1 REMARK 620 2 ASP A 56 OD2 49.6 REMARK 620 3 GLU A 60 OE2 93.3 76.5 REMARK 620 4 GLU A 124 OE1 109.9 78.4 119.6 REMARK 620 5 GLU A 124 OE2 127.1 77.6 73.4 47.8 REMARK 620 6 HOH A 191 O 73.3 116.6 82.6 156.7 148.5 REMARK 620 7 HOH A 195 O 150.9 149.1 78.8 98.2 77.7 77.9 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 164 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 60 OE1 REMARK 620 2 GLU A 60 OE2 49.1 REMARK 620 3 GLU A 124 OE2 116.9 74.1 REMARK 620 4 HIS A 125 O 86.7 108.0 87.1 REMARK 620 5 HOH A 216 O 172.7 134.9 69.9 96.5 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 161 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 63 OD1 REMARK 620 2 ASP A 65 OD1 79.8 REMARK 620 3 SER A 67 OG 90.0 80.1 REMARK 620 4 THR A 69 O 82.9 153.0 79.4 REMARK 620 5 GLU A 74 OE2 89.8 80.4 160.2 120.2 REMARK 620 6 GLU A 74 OE1 107.2 129.1 147.6 75.9 50.0 REMARK 620 7 HOH A 188 O 162.3 83.0 83.3 111.7 91.0 86.6 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 162 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 103 OD1 REMARK 620 2 ASN A 105 OD1 84.2 REMARK 620 3 ASP A 107 OD1 79.3 77.2 REMARK 620 4 TYR A 109 O 81.4 155.8 81.1 REMARK 620 5 GLU A 114 OE1 113.9 125.5 153.3 78.4 REMARK 620 6 GLU A 114 OE2 97.2 74.4 151.6 126.6 53.3 REMARK 620 7 HOH A 232 O 162.7 88.2 83.9 100.0 83.1 95.7 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 163 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 139 OD1 REMARK 620 2 ASN A 141 OD1 80.4 REMARK 620 3 ASP A 143 OD1 83.5 85.3 REMARK 620 4 ARG A 145 O 81.1 157.7 80.2 REMARK 620 5 GLU A 150 OE2 88.1 74.5 159.2 117.2 REMARK 620 6 GLU A 150 OE1 112.0 121.2 150.3 77.6 50.3 REMARK 620 7 HOH A 175 O 160.8 89.5 79.4 104.4 105.1 87.2 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 160 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 161 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 162 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 163 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 164 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 165 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC7 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 166 DBREF 2TN4 A 1 159 UNP P02586 TNNC2_RABIT 1 159 SEQADV 2TN4 LEU A 98 UNP P02586 CYS 98 ENGINEERED MUTATION SEQRES 1 A 159 THR ASP GLN GLN ALA GLU ALA ARG SER TYR LEU SER GLU SEQRES 2 A 159 GLU MET ILE ALA GLU PHE LYS ALA ALA PHE ASP MET PHE SEQRES 3 A 159 ASP ALA ASP GLY GLY GLY ASP ILE SER VAL LYS GLU LEU SEQRES 4 A 159 GLY THR VAL MET ARG MET LEU GLY GLN THR PRO THR LYS SEQRES 5 A 159 GLU GLU LEU ASP ALA ILE ILE GLU GLU VAL ASP GLU ASP SEQRES 6 A 159 GLY SER GLY THR ILE ASP PHE GLU GLU PHE LEU VAL MET SEQRES 7 A 159 MET VAL ARG GLN MET LYS GLU ASP ALA LYS GLY LYS SER SEQRES 8 A 159 GLU GLU GLU LEU ALA GLU LEU PHE ARG ILE PHE ASP ARG SEQRES 9 A 159 ASN ALA ASP GLY TYR ILE ASP ALA GLU GLU LEU ALA GLU SEQRES 10 A 159 ILE PHE ARG ALA SER GLY GLU HIS VAL THR ASP GLU GLU SEQRES 11 A 159 ILE GLU SER LEU MET LYS ASP GLY ASP LYS ASN ASN ASP SEQRES 12 A 159 GLY ARG ILE ASP PHE ASP GLU PHE LEU LYS MET MET GLU SEQRES 13 A 159 GLY VAL GLN HET CA A 160 1 HET CA A 161 1 HET CA A 162 1 HET CA A 163 1 HET CA A 164 1 HET CA A 165 1 HET CA A 166 1 HETNAM CA CALCIUM ION FORMUL 2 CA 7(CA 2+) FORMUL 9 HOH *97(H2 O) HELIX 1 1 ASP A 2 TYR A 10 1 9 HELIX 2 2 GLU A 13 PHE A 26 1 14 HELIX 3 3 VAL A 36 LEU A 46 1 11 HELIX 4 4 LYS A 52 VAL A 62 1 11 HELIX 5 5 PHE A 72 PHE A 102 1 31 HELIX 6 6 ALA A 112 ALA A 121 1 10 HELIX 7 7 ASP A 128 GLY A 138 1 11 HELIX 8 8 PHE A 148 LYS A 153 1 6 SHEET 1 A 2 ASP A 33 ILE A 34 0 SHEET 2 A 2 ILE A 70 ASP A 71 -1 O ILE A 70 N ILE A 34 LINK OD1 ASP A 27 CA CA A 160 1555 1555 2.36 LINK OD1 ASP A 29 CA CA A 160 1555 1555 2.52 LINK O ASP A 33 CA CA A 160 1555 1555 2.33 LINK OE1 GLU A 38 CA CA A 160 1555 1555 2.61 LINK OE2 GLU A 38 CA CA A 160 1555 1555 2.62 LINK O THR A 49 CA CA A 165 1555 1555 2.39 LINK OG1 THR A 49 CA CA A 165 1555 1555 2.63 LINK OD1 ASP A 56 CA CA A 166 1555 1555 2.47 LINK OD2 ASP A 56 CA CA A 166 1555 1555 2.66 LINK OE1 GLU A 60 CA CA A 164 1555 1555 2.58 LINK OE2 GLU A 60 CA CA A 164 1555 1555 2.56 LINK OE2 GLU A 60 CA CA A 166 1555 1555 2.37 LINK OD1 ASP A 63 CA CA A 161 1555 1555 2.39 LINK OD1 ASP A 65 CA CA A 161 1555 1555 2.48 LINK OG SER A 67 CA CA A 161 1555 1555 2.64 LINK O THR A 69 CA CA A 161 1555 1555 2.48 LINK OE1 GLU A 73 CA CA A 165 4545 1555 2.48 LINK OE2 GLU A 74 CA CA A 161 1555 1555 2.60 LINK OE1 GLU A 74 CA CA A 161 1555 1555 2.58 LINK OD1 ASP A 103 CA CA A 162 1555 1555 2.34 LINK OD1 ASN A 105 CA CA A 162 1555 1555 2.49 LINK OD1 ASP A 107 CA CA A 162 1555 1555 2.46 LINK O TYR A 109 CA CA A 162 1555 1555 2.42 LINK OE1 GLU A 114 CA CA A 162 1555 1555 2.37 LINK OE2 GLU A 114 CA CA A 162 1555 1555 2.46 LINK OE2 GLU A 124 CA CA A 164 3454 1555 2.58 LINK OE1 GLU A 124 CA CA A 166 3454 1555 2.60 LINK OE2 GLU A 124 CA CA A 166 3454 1555 2.78 LINK O HIS A 125 CA CA A 164 3454 1555 2.36 LINK OD1 ASP A 139 CA CA A 163 1555 1555 2.42 LINK OD1 ASN A 141 CA CA A 163 1555 1555 2.28 LINK OD1 ASP A 143 CA CA A 163 1555 1555 2.47 LINK O ARG A 145 CA CA A 163 1555 1555 2.41 LINK OE2 GLU A 150 CA CA A 163 1555 1555 2.68 LINK OE1 GLU A 150 CA CA A 163 1555 1555 2.43 LINK CA CA A 160 O HOH A 173 1555 1555 2.47 LINK CA CA A 160 O HOH A 221 1555 1555 2.56 LINK CA CA A 161 O HOH A 188 1555 1555 2.48 LINK CA CA A 162 O HOH A 232 1555 1555 2.54 LINK CA CA A 163 O HOH A 175 1555 1555 2.37 LINK CA CA A 164 O HOH A 216 1555 1555 2.34 LINK CA CA A 165 O HOH A 169 1555 1555 2.50 LINK CA CA A 165 O HOH A 172 1555 1555 2.48 LINK CA CA A 165 O HOH A 233 1555 1555 2.47 LINK CA CA A 165 O HOH A 237 1555 4545 2.78 LINK CA CA A 166 O HOH A 191 1555 1555 2.68 LINK CA CA A 166 O HOH A 195 1555 1555 2.78 SITE 1 AC1 6 ASP A 27 ASP A 29 ASP A 33 GLU A 38 SITE 2 AC1 6 HOH A 173 HOH A 221 SITE 1 AC2 6 ASP A 63 ASP A 65 SER A 67 THR A 69 SITE 2 AC2 6 GLU A 74 HOH A 188 SITE 1 AC3 6 ASP A 103 ASN A 105 ASP A 107 TYR A 109 SITE 2 AC3 6 GLU A 114 HOH A 232 SITE 1 AC4 6 ASP A 139 ASN A 141 ASP A 143 ARG A 145 SITE 2 AC4 6 GLU A 150 HOH A 175 SITE 1 AC5 4 GLU A 60 GLU A 124 HIS A 125 HOH A 216 SITE 1 AC6 6 THR A 49 GLU A 73 HOH A 169 HOH A 172 SITE 2 AC6 6 HOH A 233 HOH A 237 SITE 1 AC7 5 ASP A 56 GLU A 60 GLU A 124 HOH A 191 SITE 2 AC7 5 HOH A 195 CRYST1 83.120 51.880 52.120 90.00 121.90 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 0.012031 0.000000 0.007489 0.00000 SCALE2 0.000000 0.019275 0.000000 0.00000 SCALE3 0.000000 0.000000 0.022600 0.00000