2ECP	Acarbose	date	Oct 27, 1998
title	The Crystal Structure Of The E. Coli Maltodextrin Phosphoryl Complex
authors	M.O'Reilly, K.A.Watson, L.N.Johnson
compound		source
Molecule: Maltodextrin Phosphorylase Chain: A, B Synonym: Ecp, Malp Ec: 2.4.1.1 Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Cell_line: Delta Mala518 Tissue: Muscle Cellular_location: Cytoplasm Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_cell_line: Delta Mala518 Expression_system_cellular_location: Cytoplasm Expression_system_plasmid: Pmap101
symmetry	Space Group: P 21 21 21	R_factor 0.241 R_Free 0.293
crystal cell	length a length b length c angle alpha angle beta angle gamma 76.490 105.840 217.720 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.95 Å
ligand	AC1, GLC, GOL, PLP	enzyme	Transferase E.C.2.4.1.1 BRENDA
related structures	by homologous chain: 1AHP, 1E4O
Gene Ontology	Chain Function Process Component A, B
Primary reference	The crystal structure of the Escherichia coli maltodextrin phosphorylase-acarbose complex., O'Reilly M, Watson KA, Johnson LN, Biochemistry 1999 Apr 27;38(17):5337-45. PMID:10220320

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (262 Kb) [Save to disk] Biological Unit Coordinates (2ecp.pdb1.gz) 255 Kb LPC: Ligand-Protein Contacts for 2ECP CSU: Contacts of Structural Units for 2ECP Likely Quarternary Molecular Structure file(s) for 2ECP Structure Factors (265 Kb) Retrieve 2ECP in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2ECP from S2C, [Save to disk] Re-refined 2ecp structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2ECP 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 2ECP

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 2ECP, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d2ecpa_, region A [Jmol] [rasmolscript] [script source]     - Domain d2ecpb_, 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: [2ecp] [2ecp_B] [2ecp_A] SWISS-PROT database: [P00490] Domain organization of [PHSM_ECOLI] by SWISSPFAM

Other resources with information on 2ECP

Community annotation for 2ECP at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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