PDB Short entry for 1MXL HEADER CALCIUM-BINDING PROTEIN 22-APR-99 1MXL TITLE STRUCTURE OF CARDIAC TROPONIN C-TROPONIN I COMPLEX COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEIN (TROPONIN C); COMPND 3 CHAIN: C; COMPND 4 FRAGMENT: REGULATORY N-DOMAIN RESIDUES 1-89; COMPND 5 SYNONYM: CNTNC; COMPND 6 ENGINEERED: YES; COMPND 7 OTHER_DETAILS: CALCIUM SATURATED N-DOMAIN OF CARDIAC TROPONIN C IN COMPND 8 COMPLEX WITH CARDIAC TROPONIN I 147-163; COMPND 9 MOL_ID: 2; COMPND 10 MOLECULE: PROTEIN (TROPONIN I); COMPND 11 CHAIN: I; COMPND 12 FRAGMENT: CARDIAC TROPONIN I RESIDUES 147-163; COMPND 13 SYNONYM: CNTNI PEPTIDE; COMPND 14 ENGINEERED: YES; COMPND 15 OTHER_DETAILS: CARDIAC TROPONIN I 147-163 IN COMPLEX WITH THE N- COMPND 16 DOMAIN OF CARDIAC TROPONIN C SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 STRAIN: BL21(DE3) PLYSS; SOURCE 6 ORGAN: HEART; SOURCE 7 TISSUE: MUSCLE; SOURCE 8 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 9 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 10 EXPRESSION_SYSTEM_STRAIN: BL21(DE3) PLYSS; SOURCE 11 EXPRESSION_SYSTEM_TISSUE: MUSCLE; SOURCE 12 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 13 EXPRESSION_SYSTEM_VECTOR: PET3D; SOURCE 14 OTHER_DETAILS: HOMO SAPIENS; SOURCE 15 MOL_ID: 2; SOURCE 16 SYNTHETIC: YES; SOURCE 17 OTHER_DETAILS: THIS PEPTIDE WAS CHEMICALLY SYNTHESIZED. ITS PARENT SOURCE 18 PROTEIN IS NATURALLY FOUND IN HEART TISSUE OF HOMO SAPIENS (HUMAN). KEYWDS TROPONIN, MUSCLE CONTRACTION, REGULATORY PROTEIN, CALCIUM-BINDING KEYWDS 2 PROTEIN EXPDTA SOLUTION NMR NUMMDL 40 AUTHOR M.X.LI,L.SPYRACOPOULOS,B.D.SYKES REVDAT 5 27-DEC-23 1MXL 1 REMARK REVDAT 4 23-FEB-22 1MXL 1 REMARK LINK REVDAT 3 24-FEB-09 1MXL 1 VERSN REVDAT 2 01-APR-03 1MXL 1 JRNL REVDAT 1 06-JUL-99 1MXL 0 JRNL AUTH M.X.LI,L.SPYRACOPOULOS,B.D.SYKES JRNL TITL BINDING OF CARDIAC TROPONIN-I147-163 INDUCES A STRUCTURAL JRNL TITL 2 OPENING IN HUMAN CARDIAC TROPONIN-C. JRNL REF BIOCHEMISTRY V. 38 8289 1999 JRNL REFN ISSN 0006-2960 JRNL PMID 10387074 JRNL DOI 10.1021/BI9901679 REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.1 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: REFINEMENT DETAILS CAN BE FOUND IN THE REMARK 3 JRNL CITATION ABOVE. REMARK 4 REMARK 4 1MXL COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 26-APR-99. REMARK 100 THE DEPOSITION ID IS D_1000000925. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 303 REMARK 210 PH : 6.7 REMARK 210 IONIC STRENGTH : NULL REMARK 210 PRESSURE : 1 ATM REMARK 210 SAMPLE CONTENTS : 10% WATER/90% D2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 2D-NOESY; 2D-TOCSY; 15N-NOESY; REMARK 210 15N13C-NOESY; HCCHTOCSY; 15N- REMARK 210 HSQC; 13C-HSQC; HNHA; CBCA(CO) REMARK 210 NNH; HNCACB REMARK 210 SPECTROMETER FIELD STRENGTH : 500 MHZ; 600 MHZ REMARK 210 SPECTROMETER MODEL : INOVA; UNITYPLUS REMARK 210 SPECTROMETER MANUFACTURER : VARIAN REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : XPLOR REMARK 210 METHOD USED : SIMULATED ANNEALING REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 100 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 40 REMARK 210 CONFORMERS, SELECTION CRITERIA : LEAST RESTRAINT VIOLATION REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 18 REMARK 210 REMARK 210 REMARK: THE STRUCTURE WAS DETERMINED USING TRIPLE-RESONANCE NMR REMARK 210 SPECTROSCOPY ON 13C, 15N-LABELED TROPONIN C AND A SYNTHETIC REMARK 210 TROPONIN I PEPTIDE 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: DIMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: C, I 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 O SER C 37 HG1 THR C 38 1.48 REMARK 500 O GLN C 58 H ASP C 62 1.59 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 ASP C 2 -159.69 -143.07 REMARK 500 1 GLN C 11 36.88 -94.01 REMARK 500 1 LEU C 29 87.03 -57.40 REMARK 500 1 SER C 37 32.70 -158.35 REMARK 500 1 THR C 38 -51.14 74.83 REMARK 500 1 ASN C 51 84.98 -178.38 REMARK 500 1 VAL C 64 36.42 -141.45 REMARK 500 1 MET C 85 -83.22 -44.81 REMARK 500 1 ASP C 88 27.59 -154.23 REMARK 500 1 LEU I 11 -165.17 -126.14 REMARK 500 1 ALA I 14 25.36 -148.00 REMARK 500 1 ALA I 16 43.15 -144.46 REMARK 500 2 ASP C 3 54.48 -106.88 REMARK 500 2 LEU C 12 -169.46 -59.14 REMARK 500 2 LEU C 29 100.25 -59.34 REMARK 500 2 CYS C 35 -166.29 -106.32 REMARK 500 2 SER C 37 37.99 -158.05 REMARK 500 2 THR C 38 -54.68 71.38 REMARK 500 2 ASN C 51 98.76 -164.31 REMARK 500 2 THR C 53 173.62 -53.69 REMARK 500 2 LEU C 57 -72.30 -56.41 REMARK 500 2 LYS C 86 54.52 -159.38 REMARK 500 2 ASP C 87 76.90 -152.59 REMARK 500 2 SER I 3 -179.67 -65.18 REMARK 500 2 LEU I 12 66.77 65.83 REMARK 500 2 ALA I 14 -172.89 55.52 REMARK 500 2 ALA I 16 -38.54 -177.71 REMARK 500 3 ASP C 2 48.05 -170.26 REMARK 500 3 ASP C 3 78.00 51.58 REMARK 500 3 LEU C 29 101.62 -43.42 REMARK 500 3 GLU C 32 -64.84 -102.56 REMARK 500 3 SER C 37 32.61 -157.82 REMARK 500 3 THR C 38 -44.33 78.38 REMARK 500 3 ASP C 67 19.86 -152.66 REMARK 500 3 CYS C 84 46.24 -95.97 REMARK 500 3 SER I 3 69.26 62.18 REMARK 500 4 ASP C 3 108.05 -43.71 REMARK 500 4 ILE C 4 -36.24 -141.86 REMARK 500 4 SER C 37 41.13 -154.98 REMARK 500 4 THR C 38 -57.54 72.05 REMARK 500 4 ASN C 51 96.85 -168.43 REMARK 500 4 THR C 53 176.55 -54.42 REMARK 500 4 GLU C 66 57.40 -119.17 REMARK 500 4 ASP C 67 -36.65 -146.56 REMARK 500 4 SER C 69 -70.58 -101.65 REMARK 500 4 MET C 85 -159.39 -66.65 REMARK 500 4 LYS C 86 108.83 -176.30 REMARK 500 4 ASP C 88 156.65 180.00 REMARK 500 4 LEU I 11 20.32 -149.13 REMARK 500 4 ARG I 15 29.30 -154.45 REMARK 500 REMARK 500 THIS ENTRY HAS 495 RAMACHANDRAN OUTLIERS. REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 1 ARG C 46 0.27 SIDE CHAIN REMARK 500 1 ARG C 83 0.30 SIDE CHAIN REMARK 500 1 ARG I 1 0.32 SIDE CHAIN REMARK 500 1 ARG I 15 0.23 SIDE CHAIN REMARK 500 2 ARG C 46 0.32 SIDE CHAIN REMARK 500 2 ARG C 83 0.26 SIDE CHAIN REMARK 500 2 ARG I 1 0.30 SIDE CHAIN REMARK 500 2 ARG I 15 0.14 SIDE CHAIN REMARK 500 3 ARG C 46 0.21 SIDE CHAIN REMARK 500 3 ARG C 83 0.30 SIDE CHAIN REMARK 500 3 ARG I 1 0.09 SIDE CHAIN REMARK 500 3 ARG I 15 0.18 SIDE CHAIN REMARK 500 4 ARG C 46 0.10 SIDE CHAIN REMARK 500 4 ARG C 83 0.20 SIDE CHAIN REMARK 500 4 ARG I 1 0.26 SIDE CHAIN REMARK 500 4 ARG I 15 0.32 SIDE CHAIN REMARK 500 5 ARG C 83 0.30 SIDE CHAIN REMARK 500 5 ARG I 1 0.22 SIDE CHAIN REMARK 500 5 ARG I 15 0.27 SIDE CHAIN REMARK 500 6 ARG C 46 0.30 SIDE CHAIN REMARK 500 6 ARG C 83 0.21 SIDE CHAIN REMARK 500 6 ARG I 1 0.15 SIDE CHAIN REMARK 500 6 ARG I 15 0.24 SIDE CHAIN REMARK 500 7 ARG C 46 0.30 SIDE CHAIN REMARK 500 7 ARG C 83 0.28 SIDE CHAIN REMARK 500 7 ARG I 1 0.22 SIDE CHAIN REMARK 500 7 ARG I 15 0.30 SIDE CHAIN REMARK 500 8 ARG C 46 0.23 SIDE CHAIN REMARK 500 8 ARG C 83 0.21 SIDE CHAIN REMARK 500 8 ARG I 1 0.17 SIDE CHAIN REMARK 500 8 ARG I 15 0.28 SIDE CHAIN REMARK 500 9 ARG C 46 0.30 SIDE CHAIN REMARK 500 9 ARG C 83 0.25 SIDE CHAIN REMARK 500 9 ARG I 1 0.32 SIDE CHAIN REMARK 500 9 ARG I 15 0.28 SIDE CHAIN REMARK 500 10 ARG C 46 0.25 SIDE CHAIN REMARK 500 10 ARG C 83 0.30 SIDE CHAIN REMARK 500 10 ARG I 1 0.25 SIDE CHAIN REMARK 500 10 ARG I 15 0.31 SIDE CHAIN REMARK 500 11 ARG C 46 0.20 SIDE CHAIN REMARK 500 11 ARG C 83 0.25 SIDE CHAIN REMARK 500 11 ARG I 15 0.18 SIDE CHAIN REMARK 500 12 ARG C 83 0.30 SIDE CHAIN REMARK 500 12 ARG I 1 0.29 SIDE CHAIN REMARK 500 12 ARG I 15 0.14 SIDE CHAIN REMARK 500 13 ARG C 83 0.31 SIDE CHAIN REMARK 500 13 ARG I 1 0.31 SIDE CHAIN REMARK 500 13 ARG I 15 0.28 SIDE CHAIN REMARK 500 14 ARG C 46 0.19 SIDE CHAIN REMARK 500 14 ARG C 83 0.21 SIDE CHAIN REMARK 500 REMARK 500 THIS ENTRY HAS 150 PLANE DEVIATIONS. 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 C 90 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP C 65 OD2 REMARK 620 2 ASP C 67 OD1 81.2 REMARK 620 3 ASP C 67 OD2 120.2 55.8 REMARK 620 4 SER C 69 OG 84.8 92.7 61.1 REMARK 620 5 THR C 71 O 92.4 158.8 112.7 66.4 REMARK 620 6 GLU C 76 OE2 152.2 93.3 76.5 122.8 101.3 REMARK 620 7 GLU C 76 OE1 99.7 119.3 135.7 148.0 81.7 59.3 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 C 90 DBREF 1MXL C 1 89 UNP P63316 TNNC1_HUMAN 1 89 DBREF 1MXL I 1 17 UNP P19429 TNNI3_HUMAN 147 163 SEQRES 1 C 89 MET ASP ASP ILE TYR LYS ALA ALA VAL GLU GLN LEU THR SEQRES 2 C 89 GLU GLU GLN LYS ASN GLU PHE LYS ALA ALA PHE ASP ILE SEQRES 3 C 89 PHE VAL LEU GLY ALA GLU ASP GLY CYS ILE SER THR LYS SEQRES 4 C 89 GLU LEU GLY LYS VAL MET ARG MET LEU GLY GLN ASN PRO SEQRES 5 C 89 THR PRO GLU GLU LEU GLN GLU MET ILE ASP GLU VAL ASP SEQRES 6 C 89 GLU ASP GLY SER GLY THR VAL ASP PHE ASP GLU PHE LEU SEQRES 7 C 89 VAL MET MET VAL ARG CYS MET LYS ASP ASP SER SEQRES 1 I 17 ARG ILE SER ALA ASP ALA MET MET GLN ALA LEU LEU GLY SEQRES 2 I 17 ALA ARG ALA LYS HET CA C 90 1 HETNAM CA CALCIUM ION FORMUL 3 CA CA 2+ HELIX 1 1 ILE C 4 GLU C 10 1 7 HELIX 2 2 GLU C 14 VAL C 28 1 15 HELIX 3 3 LEU C 41 LEU C 48 1 8 HELIX 4 4 PRO C 54 VAL C 64 1 11 HELIX 5 5 PHE C 74 VAL C 82 1 9 HELIX 6 6 ALA I 4 ALA I 10 1 7 LINK OD2 ASP C 65 CA CA C 90 1555 1555 2.80 LINK OD1 ASP C 67 CA CA C 90 1555 1555 2.13 LINK OD2 ASP C 67 CA CA C 90 1555 1555 2.44 LINK OG SER C 69 CA CA C 90 1555 1555 2.71 LINK O THR C 71 CA CA C 90 1555 1555 2.70 LINK OE2 GLU C 76 CA CA C 90 1555 1555 2.28 LINK OE1 GLU C 76 CA CA C 90 1555 1555 2.05 SITE 1 AC1 5 ASP C 65 ASP C 67 SER C 69 THR C 71 SITE 2 AC1 5 GLU C 76 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