1TW3	Transferase	date	Jun 30, 2004
title	Crystal Structure Of Carminomycin-4-O-Methyltransferase (Dnr Complex With S-Adenosyl-L-Homocystein (Sah) And 4-Methoxy-E Rhodomycin T (M-Et)
authors	A.Jansson, H.Koskiniemi, P.Mantsala, J.Niemi, G.Schneider
compound		source
Molecule: Carminomycin 4-O-Methyltransferase Chain: A, B Synonym: Comt Ec: 2.1.1.- Engineered: Yes		Organism_scientific: Streptomyces Peucetius Organism_taxid: 1950 Gene: Dnrk Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pgex4t-3
symmetry	Space Group: C 1 2 1	R_factor 0.193 R_Free 0.244
crystal cell	length a length b length c angle alpha angle beta angle gamma 210.690 53.134 83.070 90.00 105.03 90.00
method	X-Ray Diffraction	resolution	2.35 Å
ligand	ERT, SAH	enzyme	Transferase E.C.2.1.1 BRENDA
related structures	by homologous chain: 1TW2
Gene Ontology	Chain Function Process Component A, B
Primary reference	Crystal structure of a ternary complex of DnrK, a methyltransferase in daunorubicin biosynthesis, with bound products., Jansson A, Koskiniemi H, Mantsala P, Niemi J, Schneider G, J Biol Chem 2004 Jul 24;. PMID:15273252

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (120 Kb) [Save to disk] Biological Unit Coordinates (1tw3.pdb1.gz) 114 Kb LPC: Ligand-Protein Contacts for 1TW3 CSU: Contacts of Structural Units for 1TW3 Likely Quarternary Molecular Structure file(s) for 1TW3 Structure Factors (280 Kb) Retrieve 1TW3 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1TW3 from S2C, [Save to disk] Re-refined 1tw3 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1TW3 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 1TW3

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 1TW3, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1tw3a1, region A:14-99 [Jmol] [rasmolscript] [script source]     - Domain d1tw3a2, region A:99-351 [Jmol] [rasmolscript] [script source]     - Domain d1tw3b1, region B:14-99 [Jmol] [rasmolscript] [script source]     - Domain d1tw3b2, region B:99-351 [Jmol] [rasmolscript] [script source]

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1tw3_B] [1tw3] [1tw3_A] SWISS-PROT database: [Q06528] Domain organization of [CM4T_STRPE] by SWISSPFAM

Other resources with information on 1TW3

Community annotation for 1TW3 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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