1J20	Ligase	date	Dec 24, 2002
title	Crystal Structure Of Thermus Thermophilus Hb8 Argininosuccin Synthetase In Complex With Product
authors	M.Goto, K.Hirotsu, Riken Structural Genomicsproteomics Initia (Rsgi)
compound		source
Molecule: Argininosuccinate Synthetase Chain: A, B, C, D Ec: 6.3.4.5 Engineered: Yes		Organism_scientific: Thermus Thermophilus Organism_taxid: 274 Gene: Hb8 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet11a
symmetry	Space Group: H 3	R_factor 0.212 R_Free 0.239
crystal cell	length a length b length c angle alpha angle beta angle gamma 228.780 228.780 159.410 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.00 Å
ligand	AMP, AS1, SO4	enzyme	Ligase E.C.6.3.4.5 BRENDA
related structures	by homologous chain: 1J1Z, 1KOR
Gene Ontology	Chain Function Process Component A, D, C, B
Primary reference	Structures of argininosuccinate synthetase in enzyme-ATP substrates and enzyme-AMP product forms: stereochemistry of the catalytic reaction., Goto M, Omi R, Miyahara I, Sugahara M, Hirotsu K, J Biol Chem 2003 Jun 20;278(25):22964-71. PMID:12684518

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (267 Kb) [Save to disk] Biological Unit Coordinates (1j20.pdb1.gz) 261 Kb LPC: Ligand-Protein Contacts for 1J20 CSU: Contacts of Structural Units for 1J20 Likely Quarternary Molecular Structure file(s) for 1J20 Structure Factors (1823 Kb) Retrieve 1J20 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1J20 from S2C, [Save to disk] Re-refined 1j20 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1J20 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 1J20

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 1J20, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1j20a1, region A:1-165 [Jmol] [rasmolscript] [script source]     - Domain d1j20a2, region A:171-395 [Jmol] [rasmolscript] [script source]     - Domain d1j20b1, region B:1-165 [Jmol] [rasmolscript] [script source]     - Domain d1j20b2, region B:171-395 [Jmol] [rasmolscript] [script source]     - Domain d1j20c1, region C:1-165 [Jmol] [rasmolscript] [script source]     - Domain d1j20c2, region C:171-395 [Jmol] [rasmolscript] [script source]     - Domain d1j20d1, region D:1-165 [Jmol] [rasmolscript] [script source]     - Domain d1j20d2, region D:171-395 [Jmol] [rasmolscript] [script source]

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1j20_C] [1j20] [1j20_B] [1j20_D] [1j20_A] SWISS-PROT database: [P59846] Domain organization of [ASSY_THET8] by SWISSPFAM

Other resources with information on 1J20

Community annotation for 1J20 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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