3K16	Isomerase	date	Sep 25, 2009
title	Crystal Structure Of Brca1 Brct D1840t In Complex With A Min Recognition Tetrapeptide With A Free Carboxy C-Terminus
authors	S.J.Campbell, R.A.Edwards, J.N.Glover
compound		source
Molecule: Breast Cancer Type 1 Susceptibility Protein Chain: A Fragment: Brct Domain Synonym: Ring Finger Protein 53 Ec: 6.3.2.- Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Brca1, Rnf53 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21 Gold Expression_system_vector_type: Plasmid Expression_system_plasmid: Plm1-Cd6
Molecule: Phospho Peptide Chain: B Engineered: Yes		Synthetic: Yes Other_details: Sequence Occurs Naturally In Humans In The Abraxasccdc98 Protein. Synthesized By The Alberta Peptide Institute.
symmetry	Space Group: P 61 2 2	R_factor 0.224 R_Free 0.288
crystal cell	length a length b length c angle alpha angle beta angle gamma 114.337 114.337 123.867 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	3.00 Å
ligand	CL, NI, SEP	enzyme	Ligase E.C.6.3.2 BRENDA
Primary reference	Comparison of the structures and peptide binding specificities of the BRCT domains of MDC1 and BRCA1., Campbell SJ, Edwards RA, Glover JN, Structure. 2010 Feb 10;18(2):167-76. PMID:20159462

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (42 Kb) [Save to disk] Biological Unit Coordinates (3k16.pdb1.gz) 36 Kb LPC: Ligand-Protein Contacts for 3K16 CSU: Contacts of Structural Units for 3K16 Structure Factors (153 Kb) Retrieve 3K16 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3K16 from S2C, [Save to disk] Re-refined 3k16 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3K16 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 3K16

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 3K16, from MSDmotif at EBI Fold representative 3k16 from FSSP and Dali (Families of Structurally Similar Proteins)

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3k16_A] [3k16_B] SWISS-PROT database: Domain organization of by SWISSPFAM Alignments of the sequence of 3K16 with the sequences similar proteins can be viewed for 3K16's classification 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 at ProtoMap. Click on the Cluster number.

Other resources with information on 3K16

Community annotation for 3K16 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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