1MK2 Transcription date Aug 28, 2002
title Smad3 Sbd Complex
authors B.Y.Qin, S.S.Lam, J.J.Correia, K.Lin
compound source
Molecule: Smad 3
Chain: A
Fragment: Mh2 Domain, Residues 220-425
Synonym: Mad3, Hmad-3, Mmad3, Jv15-2, Hsmad3
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Expression_system: Escherichia Coli
Expression_system_taxid: 562

Molecule: Madh-Interacting Protein
Chain: B
Fragment: Sara Sbd Domain, Residues 773-810
Synonym: Smad Anchor For Receptor Activation, Receptor Acti Anchor, Hsara, Novel Serine Protease, Nsp;
Engineered: Yes

Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Expression_system: Escherichia Coli
Expression_system_taxid: 562
symmetry Space Group: P 21 21 2
R_factor 0.227 R_Free 0.271
length a length b length c angle alpha angle beta angle gamma
49.995 71.716 86.886 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.74 Å
ligand ACY enzyme
note 1MK2 is a representative structure
related structures by homologous chain: 1DEV, 1U7V

Primary referenceSmad3 allostery links TGF-beta receptor kinase activation to transcriptional control., Qin BY, Lam SS, Correia JJ, Lin K, Genes Dev 2002 Aug 1;16(15):1950-63. PMID:12154125
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (43 Kb) [Save to disk]
  • Biological Unit Coordinates (1mk2.pdb1.gz) 75 Kb
  • Biological Unit Coordinates (1mk2.pdb2.gz) 38 Kb
  • LPC: Ligand-Protein Contacts for 1MK2
  • CSU: Contacts of Structural Units for 1MK2
  • Likely Quarternary Molecular Structure file(s) for 1MK2
  • Structure Factors (131 Kb)
  • Retrieve 1MK2 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1MK2 from S2C, [Save to disk]
  • Re-refined 1mk2 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1MK2 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 1MK2
  • 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 1MK2, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1mk2a_, region A [Jmol] [rasmolscript] [script source]
        - Domain d1mk2b_, region B [Jmol] [rasmolscript] [script source]
  • Fold representative 1mk2 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: [1mk2_B] [1mk2] [1mk2_A]
  • SWISS-PROT database: [P84022] [O95405]
  • Domain organization of [SMAD3_HUMAN] [ZFYV9_HUMAN] by SWISSPFAM
  • Domains found in 1MK2: [DWB] [SARA ] by SMART
  • Other resources with information on 1MK2
  • Community annotation for 1MK2 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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