1KHX	Transcription	date	Dec 01, 2001
title	Crystal Structure Of A Phosphorylated Smad2
authors	J.W.Wu, M.Hu, J.Chai, J.Seoane, M.Huse, S.Kyin, T.W.Muir, R.Fairma J.Massague, Y.Shi
compound		source
Molecule: Smad2 Chain: A Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: I 21 3	R_factor 0.215 R_Free 0.241
crystal cell	length a length b length c angle alpha angle beta angle gamma 113.700 113.700 113.700 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.80 Å
ligand	SEP	enzyme
note	1KHX is a representative structure
related structures	by homologous chain: 1MJS
Gene Ontology	Chain Function Process Component A
Primary reference	Crystal structure of a phosphorylated Smad2. Recognition of phosphoserine by the MH2 domain and insights on Smad function in TGF-beta signaling., Wu JW, Hu M, Chai J, Seoane J, Huse M, Li C, Rigotti DJ, Kyin S, Muir TW, Fairman R, Massague J, Shi Y, Mol Cell 2001 Dec;8(6):1277-89. PMID:11779503

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (41 Kb) [Save to disk] Biological Unit Coordinates (1khx.pdb1.gz) 107 Kb LPC: Ligand-Protein Contacts for 1KHX CSU: Contacts of Structural Units for 1KHX Likely Quarternary Molecular Structure file(s) for 1KHX Retrieve 1KHX in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1KHX from S2C, [Save to disk]

View 1KHX 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 1KHX

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1KHX, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1khxa_, region A [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: [1khx_A] [1khx] SWISS-PROT database: [Q15796] Domain organization of [SMAD2_HUMAN] by SWISSPFAM Domain found in 1KHX: [DWB ] by SMART

Other resources with information on 1KHX

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

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