1G99	Transferase	date	Nov 22, 2000
title	An Ancient Enzyme: Acetate Kinase From Methanosarcina Thermo
authors	K.A.Buss, D.R.Cooper, C.Ingram-Smith, J.G.Ferry, D.A.Sanders, M.S
compound		source
Molecule: Acetate Kinase Chain: A, B Ec: 2.7.2.1 Engineered: Yes		Organism_scientific: Methanosarcina Thermophila Organism_taxid: 2210 Gene: Ack Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21 (De3) Expression_system_vector_type: Pt7-7 Expression_system_plasmid: Pml703
symmetry	Space Group: C 1 2 1	R_factor 0.147 R_Free 0.188
crystal cell	length a length b length c angle alpha angle beta angle gamma 181.300 67.400 82.600 90.00 102.90 90.00
method	X-Ray Diffraction	resolution	2.50 Å
ligand	ADP, SO4	enzyme	Transferase E.C.2.7.2.1 BRENDA
related structures	by homologous chain: 1TUU
Gene Ontology	Chain Function Process Component A, B
Primary reference	Urkinase: structure of acetate kinase, a member of the ASKHA superfamily of phosphotransferases., Buss KA, Cooper DR, Ingram-Smith C, Ferry JG, Sanders DA, Hasson MS, J Bacteriol 2001 Jan;183(2):680-6. PMID:11133963

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (129 Kb) [Save to disk] Biological Unit Coordinates (1g99.pdb1.gz) 124 Kb LPC: Ligand-Protein Contacts for 1G99 CSU: Contacts of Structural Units for 1G99 Likely Quarternary Molecular Structure file(s) for 1G99 Structure Factors (417 Kb) Retrieve 1G99 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1G99 from S2C, [Save to disk] Re-refined 1g99 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1G99 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 1G99

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 1G99, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1g99a1, region A:1-197 [Jmol] [rasmolscript] [script source]     - Domain d1g99a2, region A:198-398 [Jmol] [rasmolscript] [script source]     - Domain d1g99b1, region B:1-197 [Jmol] [rasmolscript] [script source]     - Domain d1g99b2, region B:198-398 [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: [1g99_B] [1g99] [1g99_A] SWISS-PROT database: [P38502] Domain organization of [ACKA_METTE] by SWISSPFAM

Other resources with information on 1G99

Community annotation for 1G99 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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