1CKN	Capping Enzyme	date	Apr 20, 1997
title	Structure Of Guanylylated Mrna Capping Enzyme Complexed With
authors	K.Hakansson, A.J.Doherty, D.B.Wigley
compound		source
Molecule: Mrna Capping Enzyme Chain: A Synonym: Rna Guanylyltransferase Ec: 2.7.7.50 Engineered: Yes		Organism_scientific: Paramecium Bursaria Chlorella Virus 1 Organism_taxid: 10506 Expression_system: Escherichia Coli Expression_system_taxid: 562
Molecule: Mrna Capping Enzyme Chain: B Synonym: Rna Guanylyltransferase Ec: 2.7.7.50 Engineered: Yes		Organism_scientific: Paramecium Bursaria Chlorella Virus 1 Organism_taxid: 10506 Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: C 2 2 21	R_factor 0.224 R_Free 0.299
crystal cell	length a length b length c angle alpha angle beta angle gamma 94.906 212.953 105.016 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.50 Å
ligand	GPL, GTP, MN, SO4	enzyme	Transferase E.C.2.7.7.50 BRENDA
note	1CKN (Molecule of the Month:pdb145)is a representative structure
related structures	by homologous chain: 1CKM
Gene Ontology	Chain Function Process Component A, B
Primary reference	X-ray crystallography reveals a large conformational change during guanyl transfer by mRNA capping enzymes., Hakansson K, Doherty AJ, Shuman S, Wigley DB, Cell 1997 May 16;89(4):545-53. PMID:9160746

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (116 Kb) [Save to disk] Biological Unit Coordinates (1ckn.pdb1.gz) 57 Kb Biological Unit Coordinates (1ckn.pdb2.gz) 57 Kb Biological Unit Coordinates (1ckn.pdb3.gz) 110 Kb Biological Unit Coordinates (1ckn.pdb4.gz) 110 Kb LPC: Ligand-Protein Contacts for 1CKN CSU: Contacts of Structural Units for 1CKN Likely Quarternary Molecular Structure file(s) for 1CKN Structure Factors (323 Kb) Retrieve 1CKN in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1CKN from S2C, [Save to disk] Re-refined 1ckn structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1CKN 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 1CKN

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 1CKN, from MSDmotif at EBI Genome occurence of 1CKN's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1ckna2, region A:11-238 [Jmol] [rasmolscript] [script source]     - Domain d1ckna1, region A:239-327 [Jmol] [rasmolscript] [script source]     - Domain d1cknb2, region B:11-238 [Jmol] [rasmolscript] [script source]     - Domain d1cknb1, region B:239-327 [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: [1ckn_A] [1ckn_B] [1ckn] SWISS-PROT database: [Q84424] Domain organization of [MCE_PBCV1] by SWISSPFAM

Other resources with information on 1CKN

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

Movements, Movies and Images

Images from IMB Jena Image Library of Biological Macromolecules.

You may enter another PDB ID code

Go [Back], to the [PDB Lite page], to the [OCA Search page] or to the [PDB Home page]

---

OCA© by Jaime Prilusky, 1996-2014,2022 Bioinformatics Unit Weizmann Institute of Science

---