1MDU	Structural Protein	date	Aug 07, 2002
title	Crystal Structure Of The Chicken Actin Trimer Complexed With Human Gelsolin Segment 1 (Gs-1)
authors	J.F.Dawson, E.P.Sablin, J.A.Spudich, R.J.Fletterick
compound		source
Molecule: Gelsolin Precursor Chain: A, D Fragment: Actin-Severing Synonym: Actin-Depolymerizing Factor, Adf, Brevin, Agel Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Escherichia Coli Expression_system_taxid: 562
Molecule: A-Actin Chain: B, E		Organism_scientific: Gallus Gallus Organism_common: Chicken Organism_taxid: 9031
symmetry	Space Group: P 1 21 1	R_factor 0.193 R_Free 0.233
crystal cell	length a length b length c angle alpha angle beta angle gamma 67.187 75.942 96.747 90.00 91.87 90.00
method	X-Ray Diffraction	resolution	2.20 Å
ligand	ATP, CA, HIC, TRS	enzyme
related structures	by homologous chain: 1EQY, 1KXP, 1RDW, 1YVN
Gene Ontology	Chain Function Process Component A, D actin binding E, B nucleotide binding ATP binding skeletal muscle thin filamen... skeletal muscle fiber develo... stress fiber cytoplasm cytoskeleton striated muscle thin filamen... actin filament actin cytoskeleton sarcomere extracellular vesicular exos...
Primary reference	Structure of an F-actin trimer disrupted by gelsolin and implications for the mechanism of severing., Dawson JF, Sablin EP, Spudich JA, Fletterick RJ, J Biol Chem 2003 Jan 10;278(2):1229-38. Epub 2002 Sep 27. PMID:12356759

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (172 Kb) [Save to disk] Biological Unit Coordinates (1mdu.pdb1.gz) 247 Kb Biological Unit Coordinates (1mdu.pdb2.gz) 245 Kb LPC: Ligand-Protein Contacts for 1MDU CSU: Contacts of Structural Units for 1MDU Likely Quarternary Molecular Structure file(s) for 1MDU Structure Factors (339 Kb) Retrieve 1MDU in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1MDU from S2C, [Save to disk] Re-refined 1mdu structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1MDU 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. On AstexViewer, from MSD-EBI (viewer documentation). On RasMol (Install RasMol freeware) Here's help on how to use RasMol.

Visual 3D analysis of 1MDU

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 1MDU, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1mdua_, region A [Jmol] [rasmolscript] [script source]     - Domain d1mdub2, region B:147-375 [Jmol] [rasmolscript] [script source]     - Domain d1mdub1, region B:7-146 [Jmol] [rasmolscript] [script source]     - Domain d1mdud_, region D [Jmol] [rasmolscript] [script source]     - Domain d1mdue2, region E:147-374 [Jmol] [rasmolscript] [script source]     - Domain d1mdue1, region E:7-146 [Jmol] [rasmolscript] [script source] Fold representative 1mdu 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: [1mdu_A] [1mdu_B] [1mdu_D] [1mdu_E] SWISS-PROT database: [P68139] [P06396] Domain organization of [ACTS_CHICK] [GELS_HUMAN] by SWISSPFAM Domains found in 1MDU: [ACTIN] [GEL ] by SMART Alignments of the sequence of 1MDU with the sequences similar proteins can be viewed for 1MDU's classification [ACTS_CHICK] [GELS_HUMAN] at ProtoMap. Click on "Neighbors List", then on the "See Alignments" button below the list. A sequence distance tree ("phylogenetic tree") can be viewed for 1ACL's classification [ACTS_CHICK] [GELS_HUMAN] at ProtoMap. Click on the Cluster number.

Other resources with information on 1MDU

Community annotation for 1MDU at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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