1L3B	Transferase, Lyase	date	Feb 26, 2002
title	Mt0146, The Precorrin-6y Methyltransferase (Cbit) Homolog Fr Thermoautotrophicum, C2 Spacegroup W Long Cell
authors	J.P.Keller, P.M.Smith, J.Benach, D.Christendat, G.Detitta, J.F.Hu
compound		source
Molecule: Precorrin-6y Methyltransferaseputative Decarboxy Chain: A, B, C, D, E, F, G, H Synonym: Mt0146, Cbit, Mth146 Engineered: Yes		Organism_scientific: Methanothermobacter Thermautotrophicus Organism_taxid: 145262 Gene: Mth146 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_plasmid: B834 Codon+
symmetry	Space Group: C 1 2 1	R_factor 0.246 R_Free 0.286
crystal cell	length a length b length c angle alpha angle beta angle gamma 141.300 59.200 192.200 90.00 108.60 90.00
method	X-Ray Diffraction	resolution	2.65 Å
ligand	MSE	enzyme
related structures	by homologous chain: 1F38, 1KXZ
Gene Ontology	Chain Function Process Component F, A, E, B, H, C, D, G protein methyltransferase ac...
Primary reference	The crystal structure of MT0146/CbiT suggests that the putative precorrin-8w decarboxylase is a methyltransferase., Keller JP, Smith PM, Benach J, Christendat D, deTitta GT, Hunt JF, Structure (Camb) 2002 Nov;10(11):1475-87. PMID:12429089

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (232 Kb) [Save to disk] Biological Unit Coordinates (1l3b.pdb1.gz) 114 Kb Biological Unit Coordinates (1l3b.pdb2.gz) 114 Kb LPC: Ligand-Protein Contacts for 1L3B CSU: Contacts of Structural Units for 1L3B Likely Quarternary Molecular Structure file(s) for 1L3B Structure Factors (386 Kb) Retrieve 1L3B in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1L3B from S2C, [Save to disk] Re-refined 1l3b structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1L3B 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 1L3B

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 1L3B, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1l3ba_, region A [Jmol] [rasmolscript] [script source]     - Domain d1l3bb_, region B [Jmol] [rasmolscript] [script source]     - Domain d1l3bc_, region C [Jmol] [rasmolscript] [script source]     - Domain d1l3bd_, region D [Jmol] [rasmolscript] [script source]     - Domain d1l3be_, region E [Jmol] [rasmolscript] [script source]     - Domain d1l3bf_, region F [Jmol] [rasmolscript] [script source]     - Domain d1l3bg_, region G [Jmol] [rasmolscript] [script source]     - Domain d1l3bh_, region H [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: [1l3b_A] [1l3b_G] [1l3b] [1l3b_D] [1l3b_E] [1l3b_H] [1l3b_F] [1l3b_B] [1l3b_C] SWISS-PROT database: [O26249] Domain organization of [CBIT_METTH] by SWISSPFAM

Other resources with information on 1L3B

Community annotation for 1L3B at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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