2GSA Chlorophyll Biosynthesis date Feb 26, 1997
title Crystal Structure Of Glutamate-1-Semialdehyde Aminomutase (Aminotransferase, Wild-Type Form)
authors M.Hennig, J.N.Jansonius
compound source
Molecule: Glutamate Semialdehyde Aminotransferase
Chain: A, B
Synonym: Glutamate Semialdehyde Aminomutase
Engineered: Yes
Organism_scientific: Synechococcus Sp.
Organism_taxid: 1131
Strain: Gr6
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Sg13009
symmetry Space Group: P 21 21 21
R_factor 0.183 R_Free 0.250
length a length b length c angle alpha angle beta angle gamma
68.620 108.600 122.430 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.40 Å
ligand PLP, PMP enzyme Isomerase E.C. BRENDA
related structures by homologous chain: 12GS, 1MD4, 22GS, 2GSR, 3GSS, 4GSA
A, B

Primary referenceCrystal structure of glutamate-1-semialdehyde aminomutase: an alpha2-dimeric vitamin B6-dependent enzyme with asymmetry in structure and active site reactivity., Hennig M, Grimm B, Contestabile R, John RA, Jansonius JN, Proc Natl Acad Sci U S A 1997 May 13;94(10):4866-71. PMID:9144156
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (143 Kb) [Save to disk]
  • Biological Unit Coordinates (2gsa.pdb1.gz) 137 Kb
  • LPC: Ligand-Protein Contacts for 2GSA
  • CSU: Contacts of Structural Units for 2GSA
  • Likely Quarternary Molecular Structure file(s) for 2GSA
  • Retrieve 2GSA in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 2GSA from S2C, [Save to disk]
  • View 2GSA 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 2GSA
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • 3D motif for 2GSA, from MSDmotif at EBI
  • Genome occurence of 2GSA's fold from GeneCensus
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d2gsaa_, region A [Jmol] [rasmolscript] [script source]
        - Domain d12gsa2, region A:2-76 [Jmol] [rasmolscript] [script source]
        - Domain d12gsa1, region A:77-209 [Jmol] [rasmolscript] [script source]
        - Domain d2gsab_, region B [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: [2gsa] [2gsa_B] [2gsa_A]
  • SWISS-PROT database: [P24630]
  • Domain organization of [GSA_SYNP6] by SWISSPFAM
  • Other resources with information on 2GSA
  • Community annotation for 2GSA at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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