HEADER CONTRACTILE PROTEIN, STRUCTURAL PROTEIN 10-FEB-04 1SBJ TITLE NMR STRUCTURE OF THE MG2+-LOADED C TERMINAL DOMAIN OF CARDIAC TROPONIN TITLE 2 C BOUND TO THE N TERMINAL DOMAIN OF CARDIAC TROPONIN I COMPND MOL_ID: 1; COMPND 2 MOLECULE: TROPONIN C, SLOW SKELETAL AND CARDIAC MUSCLES; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: C-TERMINAL DOMAIN (RESIDUES 81 - 161); COMPND 5 SYNONYM: TN-C; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: GALLUS GALLUS; SOURCE 3 ORGANISM_COMMON: CHICKEN; SOURCE 4 ORGANISM_TAXID: 9031; SOURCE 5 GENE: CTNC; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PET-23D+ KEYWDS TROPONIN C-TROPONIN I INTERACTION, CARDIAC, MUSCLE PROTEIN, 2 KEYWDS 2 MAGNESIUM BINDING PROTEIN, CONTRACTILE PROTEIN, STRUCTURAL PROTEIN EXPDTA SOLUTION NMR NUMMDL 20 AUTHOR N.L.FINLEY,J.W.HOWARTH,P.R.ROSEVEAR REVDAT 5 02-MAR-22 1SBJ 1 REMARK LINK REVDAT 4 24-FEB-09 1SBJ 1 VERSN REVDAT 3 14-DEC-04 1SBJ 1 JRNL REVDAT 2 30-NOV-04 1SBJ 1 HELIX SHEET REMARK REVDAT 1 23-NOV-04 1SBJ 0 JRNL AUTH N.L.FINLEY,J.W.HOWARTH,P.R.ROSEVEAR JRNL TITL STRUCTURE OF THE MG2+-LOADED C-LOBE OF CARDIAC TROPONIN C JRNL TITL 2 BOUND TO THE N-DOMAIN OF CARDIAC TROPONIN I: COMPARISON WITH JRNL TITL 3 THE CA2+-LOADED STRUCTURE. JRNL REF BIOCHEMISTRY V. 43 11371 2004 JRNL REFN ISSN 0006-2960 JRNL PMID 15350124 JRNL DOI 10.1021/BI049672I REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : FELIX 2000, CNX 1.0 REMARK 3 AUTHORS : ACCELRYS (FELIX), ACCELRYS (CNX) REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: THE STRUCTURES ARE BASED ON A TOTAL OF REMARK 3 958 RESTRAINTS, 818 ARE NOE-DERIVED DISTANCE RESTRAINTS, 78 REMARK 3 DIHEDRAL ANGLE RESTRAINTS, 4 DISTANCE RESTRAINTS FROM HYDROGEN REMARK 3 BONDS AND 58 DIPOLAR COUPLING RESTRAINTS REMARK 4 REMARK 4 1SBJ COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 12-FEB-04. REMARK 100 THE DEPOSITION ID IS D_1000021578. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 318.00 REMARK 210 PH : 6.8 REMARK 210 IONIC STRENGTH : 100 MM CACL2, 20 MM MGCL2 REMARK 210 PRESSURE : AMBIENT REMARK 210 SAMPLE CONTENTS : 1MM [13C,15]CTNC(81-161)/CTNI(33 REMARK 210 -80), 20MM TRIS(D11), 10MM DTT, REMARK 210 20MM BETA-MERCAPTOETHANOL, 2MM REMARK 210 EGTA, 100MM KCL, 20MM MGCL2, 90% REMARK 210 H20, 10% D2O; 1MM [15N]CTNC(81- REMARK 210 161)/CTNI(33-80), 20MM TRIS(D11), REMARK 210 10MM DTT, 20MM BETA- REMARK 210 MERCAPTOETHANOL, 2MM EGTA, 100MM REMARK 210 KCL, 20MM MGCL2, 90% H20, 10% D2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : HSQC; HNHA, HNHB, CN-NOESY-HSQC; REMARK 210 (HB)CBCA(CO)NH, HNCACB; H(CCO)NH, REMARK 210 C(CO)NH; (HB)CB(CGCD)HD, (HB) REMARK 210 CB(CGCDCE)HE; NOESY-HSQC, AB- REMARK 210 TROSY REMARK 210 SPECTROMETER FIELD STRENGTH : 600 MHZ; 500 MHZ REMARK 210 SPECTROMETER MODEL : INOVA REMARK 210 SPECTROMETER MANUFACTURER : VARIAN REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : CNS 1.0, CNX 1.0 REMARK 210 METHOD USED : DGSA REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 20 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 20 REMARK 210 CONFORMERS, SELECTION CRITERIA : STRUCTURES WITH THE LOWEST REMARK 210 ENERGY REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 11 REMARK 210 REMARK 210 REMARK: REMARK 210 BEST 20 STRUCTURES. THESE STRUCTURES WERE DETERMINED USING TRIPLE- REMARK 210 RESONANCE REMARK 210 NMR SPECTROSCOPY ON MG2+-SATURATED 15N,13C-CTNC(81-161) BOUND TO REMARK 210 CTNI(33-80). REMARK 215 REMARK 215 NMR STUDY REMARK 215 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM SOLUTION REMARK 215 NMR DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE THAT REMARK 215 CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES ON REMARK 215 THESE RECORDS ARE MEANINGLESS. 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 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS 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 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 1 ARG A 83 -48.68 -141.26 REMARK 500 1 LYS A 86 -174.38 60.76 REMARK 500 1 LYS A 90 -178.32 -63.92 REMARK 500 1 THR A 93 -168.31 -111.65 REMARK 500 1 THR A 124 172.26 -59.63 REMARK 500 1 LYS A 158 41.65 -98.75 REMARK 500 2 LYS A 86 -62.25 -146.69 REMARK 500 2 SER A 89 -71.02 -106.98 REMARK 500 2 THR A 93 -92.56 -85.25 REMARK 500 2 ALA A 108 70.15 46.96 REMARK 500 2 THR A 124 174.32 -58.33 REMARK 500 2 LYS A 158 35.21 -99.31 REMARK 500 3 VAL A 82 -67.57 68.96 REMARK 500 3 MET A 85 108.27 -169.73 REMARK 500 3 ASP A 88 -77.42 -70.21 REMARK 500 3 LYS A 90 -171.23 -60.82 REMARK 500 3 THR A 93 -156.53 -113.94 REMARK 500 3 ALA A 108 71.19 47.16 REMARK 500 4 ARG A 83 101.57 60.19 REMARK 500 4 CYS A 84 -46.32 -152.07 REMARK 500 4 LYS A 86 -47.03 -152.89 REMARK 500 4 ASP A 88 -79.14 -132.37 REMARK 500 4 ALA A 108 75.36 44.80 REMARK 500 4 MET A 157 -72.71 -78.54 REMARK 500 4 LYS A 158 69.36 -61.81 REMARK 500 4 VAL A 160 41.00 -95.99 REMARK 500 5 VAL A 82 -65.63 69.17 REMARK 500 5 CYS A 84 114.43 59.83 REMARK 500 5 LYS A 86 -66.89 -127.32 REMARK 500 6 VAL A 82 -64.65 69.80 REMARK 500 6 ARG A 83 101.07 66.45 REMARK 500 6 LYS A 86 -167.80 58.72 REMARK 500 6 ASP A 88 177.22 -50.96 REMARK 500 6 THR A 93 -148.95 -113.41 REMARK 500 6 ALA A 108 75.30 46.34 REMARK 500 6 LYS A 158 39.94 -99.55 REMARK 500 7 VAL A 82 -46.37 -133.36 REMARK 500 7 ARG A 83 -66.21 -144.64 REMARK 500 7 CYS A 84 -55.41 -147.46 REMARK 500 7 SER A 89 -150.39 -105.96 REMARK 500 7 THR A 93 -158.21 -113.06 REMARK 500 7 THR A 124 -169.28 -63.81 REMARK 500 7 ASP A 141 83.21 -69.01 REMARK 500 8 CYS A 84 -64.65 -105.11 REMARK 500 8 ASP A 88 44.29 -103.45 REMARK 500 8 SER A 89 -88.20 -125.25 REMARK 500 8 LYS A 92 61.31 -119.32 REMARK 500 8 ALA A 108 96.01 40.65 REMARK 500 8 ASP A 109 -40.90 -141.11 REMARK 500 8 LYS A 158 66.34 -62.74 REMARK 500 REMARK 500 THIS ENTRY HAS 134 RAMACHANDRAN OUTLIERS. 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 MG A 162 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 105 OD2 REMARK 620 2 ASP A 105 OD1 19.8 REMARK 620 3 ASN A 107 OD1 95.3 103.4 REMARK 620 4 ASP A 109 OD1 54.9 74.2 62.6 REMARK 620 5 TYR A 111 O 62.3 73.7 121.6 60.7 REMARK 620 6 GLU A 116 OE2 169.4 170.5 78.5 114.5 113.4 REMARK 620 7 GLU A 116 OE1 136.4 128.8 127.3 132.5 84.6 48.7 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 163 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 141 OD1 REMARK 620 2 ASP A 141 OD2 43.1 REMARK 620 3 ASN A 143 OD1 64.7 107.8 REMARK 620 4 ASN A 143 ND2 107.1 141.5 50.6 REMARK 620 5 ASP A 145 OD2 97.0 86.2 103.8 72.4 REMARK 620 6 ASP A 145 OD1 70.3 77.2 78.8 68.1 30.6 REMARK 620 7 ARG A 147 O 100.5 58.6 159.7 129.3 62.6 83.1 REMARK 620 8 GLU A 152 OE1 96.6 104.1 81.6 103.0 166.5 159.8 115.2 REMARK 620 9 GLU A 152 OE2 145.1 123.2 115.4 95.1 115.6 144.3 84.8 51.4 REMARK 620 N 1 2 3 4 5 6 7 8 REMARK 650 REMARK 650 HELIX REMARK 650 DETERMINATION METHOR: AUTHOR REMARK 700 REMARK 700 SHEET REMARK 700 DETERMINATION METHOR: AUTHOR REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 162 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 163 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1FI5 RELATED DB: PDB REMARK 900 SAME COMPLEX WITH CA2+ BOUND DBREF 1SBJ A 81 161 UNP P09860 TNNC1_CHICK 81 161 SEQRES 1 A 81 MET VAL ARG CYS MET LYS ASP ASP SER LYS GLY LYS THR SEQRES 2 A 81 GLU GLU GLU LEU SER ASP LEU PHE ARG MET PHE ASP LYS SEQRES 3 A 81 ASN ALA ASP GLY TYR ILE ASP LEU GLU GLU LEU LYS ILE SEQRES 4 A 81 MET LEU GLN ALA THR GLY GLU THR ILE THR GLU ASP ASP SEQRES 5 A 81 ILE GLU GLU LEU MET LYS ASP GLY ASP LYS ASN ASN ASP SEQRES 6 A 81 GLY ARG ILE ASP TYR ASP GLU PHE LEU GLU PHE MET LYS SEQRES 7 A 81 GLY VAL GLU HET MG A 162 1 HET MG A 163 1 HETNAM MG MAGNESIUM ION FORMUL 2 MG 2(MG 2+) HELIX 1 1 THR A 93 MET A 103 5 11 HELIX 2 2 LEU A 114 ALA A 123 1 10 HELIX 3 3 GLU A 130 ASP A 139 1 10 HELIX 4 4 TYR A 150 PHE A 156 1 7 SHEET 1 A 2 TYR A 111 ASP A 113 0 SHEET 2 A 2 ARG A 147 ASP A 149 -1 O ILE A 148 N ILE A 112 LINK OD2 ASP A 105 MG MG A 162 1555 1555 4.15 LINK OD1 ASP A 105 MG MG A 162 1555 1555 2.21 LINK OD1 ASN A 107 MG MG A 162 1555 1555 2.62 LINK OD1 ASP A 109 MG MG A 162 1555 1555 2.64 LINK O TYR A 111 MG MG A 162 1555 1555 2.70 LINK OE2 GLU A 116 MG MG A 162 1555 1555 2.89 LINK OE1 GLU A 116 MG MG A 162 1555 1555 2.23 LINK OD1 ASP A 141 MG MG A 163 1555 1555 2.85 LINK OD2 ASP A 141 MG MG A 163 1555 1555 3.11 LINK OD1 ASN A 143 MG MG A 163 1555 1555 1.91 LINK ND2 ASN A 143 MG MG A 163 1555 1555 2.91 LINK OD2 ASP A 145 MG MG A 163 1555 1555 3.67 LINK OD1 ASP A 145 MG MG A 163 1555 1555 2.00 LINK O ARG A 147 MG MG A 163 1555 1555 2.23 LINK OE1 GLU A 152 MG MG A 163 1555 1555 2.78 LINK OE2 GLU A 152 MG MG A 163 1555 1555 2.06 SITE 1 AC1 5 ASP A 105 ASN A 107 ASP A 109 TYR A 111 SITE 2 AC1 5 GLU A 116 SITE 1 AC2 5 ASP A 141 ASN A 143 ASP A 145 ARG A 147 SITE 2 AC2 5 GLU A 152 CRYST1 1.000 1.000 1.000 90.00 90.00 90.00 P 1 1 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 1.000000 0.000000 0.000000 0.00000 SCALE2 0.000000 1.000000 0.000000 0.00000 SCALE3 0.000000 0.000000 1.000000 0.00000 MODEL 1