1C26	Gene Regulation	date	Jul 22, 1999
title	Crystal Structure Of P53 Tetramerization Domain
authors	P.D.Jeffrey, S.Gorina, N.P.Pavletich
compound		source
Molecule: P53 Tumor Suppressor Chain: A Fragment: Tetramerization Domain Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet3
symmetry	Space Group: P 4 2 2	R_factor 0.192 R_Free NULL
crystal cell	length a length b length c angle alpha angle beta angle gamma 45.450 45.450 33.030 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.70 Å
related structures	by homologous chain: 1AIE, 1HS5
Primary reference	Crystal structure of the tetramerization domain of the p53 tumor suppressor at 1.7 angstroms., Jeffrey PD, Gorina S, Pavletich NP, Science 1995 Mar 10;267(5203):1498-502. PMID:7878469

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (10 Kb) [Save to disk] Biological Unit Coordinates (1c26.pdb1.gz) 15 Kb CSU: Contacts of Structural Units for 1C26 Likely Quarternary Molecular Structure file(s) for 1C26 Retrieve 1C26 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1C26 from S2C, [Save to disk]

View 1C26 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 1C26

Cartoon representation from PDB Cartoon Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute Crystal Contacts, from CryCo at Weizmann Institute 3D motif for 1C26, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1c26a_, region A [Jmol] [rasmolscript] [script source] Fold representative 1c26 from FSSP and Dali (Families of Structurally Similar Proteins)

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1c26_A] SWISS-PROT database: [P04637] Domain organization of [P53_HUMAN] by SWISSPFAM Alignments of the sequence of 1C26 with the sequences similar proteins can be viewed for 1C26's classification [P53_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 [P53_HUMAN] at ProtoMap. Click on the Cluster number.

Other resources with information on 1C26

Community annotation for 1C26 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

Movements, Movies and Images

Domain movements in 1C26 from the Database of Macromolecular Movements. Images from IMB Jena Image Library of Biological Macromolecules.

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