1T44	Structural Protein	date	Apr 28, 2004
title	Structural Basis Of Actin Sequestration By Thymosin-B4: Impl For Arp23 Activation
authors	E.Irobi, A.H.Aguda, M.Larsson, L.D.Burtnick, R.C.Robinson
compound		source
Molecule: Chimera Of Gelsolin Domain 1 And C-Terminal Domai Thymosin Beta-4; Chain: G Fragment: Chimera Of Gelsolin Domain 1 (Residues 28-152) Fr And C-Terminal Domain Of Thymosin Beta-4 From Mouse (Residu 171); Engineered: Yes		Organism_scientific: Homo Sapiens, Mus Musculus Organism_common: Human, House Mouse Organism_taxid: 9606, 10090 Strain: , Expression_system: Escherichia Coli Expression_system_taxid: 562
Molecule: Actin, Alpha Chain: A Synonym: Alpha-Actin 1		Organism_scientific: Oryctolagus Cuniculus Organism_common: Rabbit Organism_taxid: 9986 Tissue: Skeletal Muscle
symmetry	Space Group: P 1 21 1	R_factor 0.144 R_Free 0.195
crystal cell	length a length b length c angle alpha angle beta angle gamma 56.850 69.335 80.233 90.00 94.93 90.00
method	X-Ray Diffraction	resolution	2.00 Å
ligand	ATP, CA	enzyme
related structures	by homologous chain: 1C0G, 1HJ0, 1NMD
Gene Ontology	Chain Function Process Component A G
Primary reference	Structural basis of actin sequestration by thymosin-beta4: implications for WH2 proteins., Irobi E, Aguda AH, Larsson M, Guerin C, Yin HL, Burtnick LD, Blanchoin L, Robinson RC, EMBO J 2004 Aug 26;. PMID:15329672

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (178 Kb) [Save to disk] Biological Unit Coordinates (1t44.pdb1.gz) 171 Kb LPC: Ligand-Protein Contacts for 1T44 CSU: Contacts of Structural Units for 1T44 Likely Quarternary Molecular Structure file(s) for 1T44 Structure Factors (579 Kb) Retrieve 1T44 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1T44 from S2C, [Save to disk] Re-refined 1t44 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1T44 in 3D

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Visual 3D analysis of 1T44

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 3D motif for 1T44, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1t44a2, region A:147-375 [Jmol] [rasmolscript] [script source]     - Domain d1t44a1, region A:6-146 [Jmol] [rasmolscript] [script source]     - Domain d1t44g_, region G [Jmol] [rasmolscript] [script source] 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: [1t44_A] [1t44_G] [1t44] SWISS-PROT database: [P68135] [P06396] [P20065] Domain organization of [ACTS_RABIT] [GELS_HUMAN] [TYB4_MOUSE] by SWISSPFAM Domains found in 1T44: [ACTIN] [GEL] [THY ] by SMART

Other resources with information on 1T44

Community annotation for 1T44 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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