1ASM	Aminotransferase	date	Sep 16, 1993
title	Crystal Structures Of Escherichia Coli Aspartate Aminotransf Two Conformations: Comparison Of An Unliganded Open And Two Closed Forms
authors	J.Jaeger, J.N.Jansonius
compound		source
Molecule: Aspartate Aminotransferase Chain: A, B Ec: 2.6.1.1 Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: P 1 21 1	R_factor 0.188 R_Free NULL
crystal cell	length a length b length c angle alpha angle beta angle gamma 85.400 78.800 89.600 90.00 118.60 90.00
method	X-Ray Diffraction	resolution	2.35 Å
ligand	MAE, PLP	enzyme	Transferase E.C.2.6.1.1 BRENDA
related structures	by homologous chain: 1TOG, 1YOO
Gene Ontology	Chain Function Process Component A, B
Primary reference	Crystal structures of Escherichia coli aspartate aminotransferase in two conformations. Comparison of an unliganded open and two liganded closed forms., Jager J, Moser M, Sauder U, Jansonius JN, J Mol Biol 1994 Jun 3;239(2):285-305. PMID:8196059

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (134 Kb) [Save to disk] Biological Unit Coordinates (1asm.pdb1.gz) 130 Kb LPC: Ligand-Protein Contacts for 1ASM CSU: Contacts of Structural Units for 1ASM Likely Quarternary Molecular Structure file(s) for 1ASM Structure Factors (329 Kb) Retrieve 1ASM in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1ASM from S2C, [Save to disk] Re-refined 1asm structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1ASM 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 1ASM

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 1ASM, from MSDmotif at EBI Genome occurence of 1ASM's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1asma_, region A [Jmol] [rasmolscript] [script source]     - Domain d1asmb_, 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: [1asm_A] [1asm] [1asm_B] SWISS-PROT database: [P00509] Domain organization of [AAT_ECOLI] by SWISSPFAM

Other resources with information on 1ASM

Community annotation for 1ASM 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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