1ASB	Aminotransferase	date	Aug 27, 1993
title	The Structural Basis For The Reduced Activity Of The D223a(D Active Site Mutant Of E. Coli Aspartate Aminotransferase
authors	C.Schumacher, D.Ringe
compound		source
Molecule: Aspartate Aminotransferase Chain: A Ec: 2.6.1.1 Engineered: Yes Mutation: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: C 2 2 21	R_factor 0.212 R_Free NULL
crystal cell	length a length b length c angle alpha angle beta angle gamma 159.120 86.150 79.710 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.60 Å
ligand	MAE, PLP	enzyme	Transferase E.C.2.6.1.1 BRENDA
related structures	by homologous chain: 1ASL, 1CQ6
Gene Ontology	Chain Function Process Component A

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (62 Kb) [Save to disk] Biological Unit Coordinates (1asb.pdb1.gz) 115 Kb LPC: Ligand-Protein Contacts for 1ASB CSU: Contacts of Structural Units for 1ASB Likely Quarternary Molecular Structure file(s) for 1ASB Retrieve 1ASB in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1ASB from S2C, [Save to disk]

View 1ASB 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 1ASB

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1ASB, from MSDmotif at EBI Genome occurence of 1ASB's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1asb__, region [Jmol] [rasmolscript] [script source]     - Domain d11asb_, 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: [1asb] [1asb_A] SWISS-PROT database: [P00509] Domain organization of [AAT_ECOLI] by SWISSPFAM

Other resources with information on 1ASB

Community annotation for 1ASB 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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