1GKM	Lyase	date	Aug 16, 2001
title	Histidine Ammonia-Lyase (Hal) From Pseudomonas Putida Inhibi L-Cysteine
authors	M.Baedeker, G.E.Schulz
compound		source
Molecule: Histidine Ammonia-Lyase Chain: A Synonym: Histidase, Hal Ec: 4.3.1.3 Engineered: Yes Mutation: Yes Other_details: Ala 142, Ser 143 And Gly 144 Are Forming An Methylidene-Imidazole-5-One Group(Mdo). The Carbonyl Carbon 142 Is Bonded To The Nitrogen Of Gly 144. The Carbonyl Oxyg 142 Is Deleted. The Side Chain Of Ser 143 Is Dehydrated.		Organism_scientific: Pseudomonas Putida Organism_taxid: 303 Expression_system: Escherichia Coli Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_plasmid: Pt7-7h
symmetry	Space Group: I 2 2 2	R_factor R_Free
crystal cell	length a length b length c angle alpha angle beta angle gamma 79.267 116.788 129.532 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.00 Å
ligand	CYS, GOL, MDO, O, SO4	enzyme	Lyase E.C.4.3.1.3 BRENDA
note	1GKM is a representative structure
related structures	by homologous chain: 1GKJ
Gene Ontology	Chain Function Process Component A
Primary reference	Structures of two histidine ammonia-lyase modifications and implications for the catalytic mechanism., Baedeker M, Schulz GE, Eur J Biochem 2002 Mar;269(6):1790-7. PMID:11895450

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (176 Kb) [Save to disk] Biological Unit Coordinates (1gkm.pdb1.gz) 676 Kb LPC: Ligand-Protein Contacts for 1GKM CSU: Contacts of Structural Units for 1GKM Likely Quarternary Molecular Structure file(s) for 1GKM Structure Factors (2239 Kb) Retrieve 1GKM in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1GKM from S2C, [Save to disk] Re-refined 1gkm structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1GKM 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 1GKM

Ramachandran plot from PDBSum

Structure-derived information

Conformational Epitope Prediction for 1GKM from the CEP Server. Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1GKM, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1gkma_, 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: [1gkm] [1gkm_A] SWISS-PROT database: [P21310] Domain organization of [HUTH_PSEPU] by SWISSPFAM

Other resources with information on 1GKM

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

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