1MXL Calcium-Binding Protein date Apr 22, 1999
title Structure Of Cardiac Troponin C-Troponin I Complex
authors M.X.Li, L.Spyracopoulos, B.D.Sykes
compound source
Molecule: Protein (Troponin C)
Chain: C
Fragment: Regulatory N-Domain Residues 1-89
Synonym: Cntnc
Engineered: Yes
Other_details: Calcium Saturated N-Domain Of Cardiac Troponin C In Complex With Cardiac Troponin I 147-163;
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Strain: Bl21(De3) Plyss
Organ: Heart
Tissue: Muscle
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Bl21(De3) Plyss
Expression_system_tissue: Muscle
Expression_system_vector_type: Plasmid
Expression_system_vector: Pet3d
Other_details: Homo Sapiens

Molecule: Protein (Troponin I)
Chain: I
Fragment: Cardiac Troponin I Residues 147-163
Synonym: Cntni Peptide
Engineered: Yes
Other_details: Cardiac Troponin I 147-163 In Complex With The N-Domain Of Cardiac Troponin C

Synthetic: Yes
Other_details: This Peptide Was Chemically Synthesized. Its Parent Protein Is Naturally Found In Heart Tissue Of Homo Sapiens (Human).
methodSolution NMR
ligand CA enzyme
related structures by homologous chain: 1BLQ, 2BBN

Primary referenceBinding of cardiac troponin-I147-163 induces a structural opening in human cardiac troponin-C., Li MX, Spyracopoulos L, Sykes BD, Biochemistry 1999 Jun 29;38(26):8289-98. PMID:10387074
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (1098 Kb) [Save to disk]
  • LPC: Ligand-Protein Contacts for 1MXL
  • CSU: Contacts of Structural Units for 1MXL
  • Original NMR restraints for 1MXL from PDB
  • Retrieve 1MXL in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1MXL from S2C, [Save to disk]
  • View 1MXL in 3D
  • Proteopedia, because life has more than 2D.
  • On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure.
  • On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.
  • Visual 3D analysis of 1MXL
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 1MXL, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1mxlc_, region C [Jmol] [rasmolscript] [script source]
        - Domain d1mxli_, region I [Jmol] [rasmolscript] [script source]
  • Fold representative 1mxl from FSSP and Dali (Families of Structurally Similar Proteins)
  • Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH
  • Summaries and structural analyses of PDB data files from PDBSum
  • Identification of Protein Pockets & Cavities at CASTp
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1mxl] [1mxl_C] [1mxl_I]
  • SWISS-PROT database: [P63316] [P19429]
  • Domain organization of [TNNC1_HUMAN] [TNNI3_HUMAN] by SWISSPFAM
  • Domain found in 1MXL: [EFh ] by SMART
  • Other resources with information on 1MXL
  • Community annotation for 1MXL at PDBWiki (http://pdbwiki.org)
  • NMR Ensemble (OLDERADO: core, domain and representative structure database)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Domain movements in 1MXL from the Database of Macromolecular Movements.
  • Images from IMB Jena Image Library of Biological Macromolecules.

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