2NTI	Dna Binding Protein	date	Nov 07, 2006
title	Crystal Structure Of Pcna123 Heterotrimer.
authors	V.Hlinkova, H.Ling
compound		source
Molecule: Dna Polymerase Sliding Clamp B Chain: D, A, G Synonym: Proliferating Cell Nuclear Antigen Homolog B, Pcna Engineered: Yes Mutation: Yes		Organism_scientific: Sulfolobus Solfataricus Organism_taxid: 273057 Strain: P2 Gene: Pcnb, Pcna-2 Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl 21 (De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet33b
Molecule: Dna Polymerase Sliding Clamp C Chain: E, B, H Synonym: Proliferating Cell Nuclear Antigen Homolog C, Pcna Engineered: Yes		Organism_scientific: Sulfolobus Solfataricus Organism_taxid: 273057 Strain: P2 Gene: Pcnc, Pcna-2 Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl 21 (De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet11a
Molecule: Dna Polymerase Sliding Clamp A Chain: F, C, I Synonym: Proliferating Cell Nuclear Antigen Homolog A, Pcna Engineered: Yes		Organism_scientific: Sulfolobus Solfataricus Organism_taxid: 273057 Strain: P2 Gene: Pcna, Pcna-1 Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl 21 (De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet30a
symmetry	Space Group: P 21 21 2	R_factor 0.214 R_Free 0.251
crystal cell	length a length b length c angle alpha angle beta angle gamma 148.140 222.330 80.230 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.50 Å
ligand	7PG, BR, K	enzyme
Gene Ontology	Chain Function Process Component A, D, G F, E, B, H, C, I
Primary reference	Structures of monomeric, dimeric and trimeric PCNA: PCNA-ring assembly and opening., Hlinkova V, Xing G, Bauer J, Shin YJ, Dionne I, Rajashankar KR, Bell SD, Ling H, Acta Crystallogr D Biol Crystallogr. 2008 Sep;64(Pt 9):941-9. Epub 2008, Aug 13. PMID:18703842

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (372 Kb) [Save to disk] Biological Unit Coordinates (2nti.pdb1.gz) 127 Kb Biological Unit Coordinates (2nti.pdb2.gz) 126 Kb Biological Unit Coordinates (2nti.pdb3.gz) 126 Kb LPC: Ligand-Protein Contacts for 2NTI CSU: Contacts of Structural Units for 2NTI Likely Quarternary Molecular Structure file(s) for 2NTI Structure Factors (1362 Kb) Retrieve 2NTI in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2NTI from S2C, [Save to disk] Re-refined 2nti structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2NTI 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 2NTI

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 2NTI, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2nti_G] [2nti_I] [2nti_C] [2nti_A] [2nti_D] [2nti_H] [2nti] [2nti_B] [2nti_E] [2nti_F] SWISS-PROT database: [P57765] [P57766] [Q97Z84] Domain organization of [PCNA1_SULSO] [PCNA2_SULSO] [PCNA3_SULSO] by SWISSPFAM

Other resources with information on 2NTI

Community annotation for 2NTI at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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