1IWQ Metal Binding Protein Protein Binding date May 31, 2002
title Crystal Structure Of Marcks Calmodulin Binding Domain Peptide Complexed With Ca2+Calmodulin
authors E.Yamauchi, T.Nakatsu, M.Matsubara, H.Kato, H.Taniguchi, Riken Structural Genomicsproteomics Initiative (Rsgi)
compound source
Molecule: Calmodulin
Chain: A
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Expression_system: Escherichia Coli Bl21(De3)
Expression_system_taxid: 469008
Expression_system_strain: Bl21(De3)
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pacychcam

Molecule: Marcks
Chain: B
Fragment: Calmodulin Binding Domain
Synonym: Myristoylated Alanine-Rich C-Kinase Substrate
Engineered: Yes

Synthetic: Yes
Other_details: This Sequence Occurs Naturally In Humans, Mouse, Rat And Bovine.
symmetry Space Group: P 61 2 2
R_factor 0.223 R_Free 0.267
length a length b length c angle alpha angle beta angle gamma
40.229 40.229 343.468 90.00 90.00 120.00
method X-Ray Diffractionresolution 2.00 Å
ligand CA enzyme
related structures by homologous chain: 1LIN, 1RFJ

Primary referenceCrystal structure of a MARCKS peptide containing the calmodulin-binding domain in complex with Ca2+-calmodulin., Yamauchi E, Nakatsu T, Matsubara M, Kato H, Taniguchi H, Nat Struct Biol 2003 Mar;10(3):226-31. PMID:12577052
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (34 Kb) [Save to disk]
  • Biological Unit Coordinates (1iwq.pdb1.gz) 28 Kb
  • Biological Unit Coordinates (1iwq.pdb2.gz) 54 Kb
  • LPC: Ligand-Protein Contacts for 1IWQ
  • CSU: Contacts of Structural Units for 1IWQ
  • Likely Quarternary Molecular Structure file(s) for 1IWQ
  • Structure Factors (94 Kb)
  • Retrieve 1IWQ in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1IWQ from S2C, [Save to disk]
  • Re-refined 1iwq structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1IWQ 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 1IWQ
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Electron Density related parameters from EDS Electron Density Server, at Upsala
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 1IWQ, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1iwqa_, region A [Jmol] [rasmolscript] [script source]
  • Fold representative 1iwq 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: [1iwq_A] [1iwq_B] [1iwq]
  • SWISS-PROT database: [P62158] [P26645]
  • Belongs to the calmodulin calcium binding protein (calmodulin) family according to TCDB.
  • Domain organization of [CALM_HUMAN] [MARCS_MOUSE] by SWISSPFAM
  • Domain found in 1IWQ: [EFh ] by SMART
  • Other resources with information on 1IWQ
  • Community annotation for 1IWQ at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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