1C23	Hydrolase	date	Jul 22, 1999
title	E. Coli Methionine Aminopeptidase: Methionine Phosphonate Co
authors	W.T.Lowther, Y.Zhang, P.B.Sampson, J.F.Honek, B.W.Matthews
compound		source
Molecule: Methionine Aminopeptidase Chain: A Ec: 3.4.11.18 Engineered: Yes Mutation: Yes Other_details: Methionine Phosphonate Complex		Organism_scientific: Escherichia Coli Organism_taxid: 562 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_plasmid: Pet28b
symmetry	Space Group: P 1 21 1	R_factor R_Free NULL
crystal cell	length a length b length c angle alpha angle beta angle gamma 39.221 67.518 48.823 90.00 111.20 90.00
method	X-Ray Diffraction	resolution	2.00 Å
ligand	CO, MPH, NA	enzyme	Hydrolase E.C.3.4.11.18 BRENDA
related structures	by homologous chain: 1C27, 3MAT
Gene Ontology	Chain Function Process Component A
Primary reference	Insights into the mechanism of Escherichia coli methionine aminopeptidase from the structural analysis of reaction products and phosphorus-based transition-state analogues., Lowther WT, Zhang Y, Sampson PB, Honek JF, Matthews BW, Biochemistry 1999 Nov 9;38(45):14810-9. PMID:10555963

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (48 Kb) [Save to disk] Biological Unit Coordinates (1c23.pdb1.gz) 42 Kb LPC: Ligand-Protein Contacts for 1C23 CSU: Contacts of Structural Units for 1C23 Likely Quarternary Molecular Structure file(s) for 1C23 Structure Factors (122 Kb) Retrieve 1C23 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1C23 from S2C, [Save to disk] Re-refined 1c23 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1C23 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 1C23

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 1C23, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1c23a_, 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: [1c23] [1c23_A] SWISS-PROT database: [P0AE18] Domain organization of [AMPM_ECOLI] by SWISSPFAM

Other resources with information on 1C23

Community annotation for 1C23 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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