1CR2	CRYSTAL STRUCTURE OF THE HELICASE DOMAIN OF THE GENE 4 PROTEIN OF BACTERIOPHAGE T7: COMPLEX WITH DATP	date
authors	Sawaya, M.R., Guo, S., Tabor, S., Richardson, C.C., Ellenberger, T.
compound		source
symmetry		R_factor R_Free 0.2960000
crystal cell	length a length b length c angle alpha angle beta angle gamma
method	X-Ray Diffraction	resolution	2.30
ligand	DTP, SO4	enzyme
related structures	by homologous chain: 1CR0, 1CR1
Gene Ontology	Chain Function Process Component A
Primary reference	Crystal structure of the helicase domain from the replicative helicase-primase of bacteriophage T7., Sawaya MR, Guo S, Tabor S, Richardson CC, Ellenberger T, Cell 1999 Oct 15;99(2):167-77. PMID:10535735

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (44 Kb) [Save to disk] Biological Unit Coordinates (1cr2.pdb1.gz) 229 Kb LPC: Ligand-Protein Contacts for 1CR2 CSU: Contacts of Structural Units for 1CR2 Likely Quarternary Molecular Structure file(s) for 1CR2 Structure Factors (100 Kb) Retrieve 1CR2 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1CR2 from S2C, [Save to disk] Re-refined 1cr2 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1CR2 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 1CR2

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 1CR2, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1cr2a_, 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: [1cr2_A] [1cr2] SWISS-PROT database: [P03692] Domain organization of [PRIM_BPT7] by SWISSPFAM

Other resources with information on 1CR2

Community annotation for 1CR2 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

Movements, Movies and Images

Images from IMB Jena Image Library of Biological Macromolecules.

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