3MCT	Methyltransferase	date	Jan 05, 1999
title	Vaccinia Methyltransferase Vp39 Complexed With M3cyt And S- Adenosylhomocysteine
authors	G.Hu, P.D.Gershon, A.E.Hodel, F.A.Quiocho
compound		source
Molecule: Vp39 Chain: A Synonym: Poly(A) Polymerase Regulatory Subunit Ec: 2.7.7.19 Engineered: Yes Mutation: Yes		Organism_scientific: Vaccinia Virus Organism_taxid: 10245 Strain: Bl21 (De3) Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21 (De3)
symmetry	Space Group: C 1 2 1	R_factor 0.234 R_Free 0.285
crystal cell	length a length b length c angle alpha angle beta angle gamma 85.384 67.176 80.160 90.00 117.38 90.00
method	X-Ray Diffraction	resolution	2.00 Å
ligand	3MC, SAH	enzyme	Transferase E.C.2.7.7.19 BRENDA
related structures	by homologous chain: 1B42, 1JTE
Gene Ontology	Chain Function Process Component A
Primary reference	mRNA cap recognition: dominant role of enhanced stacking interactions between methylated bases and protein aromatic side chains., Hu G, Gershon PD, Hodel AE, Quiocho FA, Proc Natl Acad Sci U S A 1999 Jun 22;96(13):7149-54. PMID:10377383

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (69 Kb) [Save to disk] Biological Unit Coordinates (3mct.pdb1.gz) 129 Kb LPC: Ligand-Protein Contacts for 3MCT CSU: Contacts of Structural Units for 3MCT Likely Quarternary Molecular Structure file(s) for 3MCT Structure Factors (196 Kb) Retrieve 3MCT in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3MCT from S2C, [Save to disk] Re-refined 3mct structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3MCT 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 3MCT

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 3MCT, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d3mct__, region [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: [3mct_A] [3mct] SWISS-PROT database: [P07617] Domain organization of [PAP2_VACCW] by SWISSPFAM

Other resources with information on 3MCT

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

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