3K8L Membrane Protein date Oct 14, 2009
title Crystal Structure Of Susg-D498n Mutant With Maltoheptaose
authors N.M.Koropatkin, T.J.Smith
compound source
Molecule: Alpha-Amylase, Susg
Chain: A, B
Engineered: Yes
Mutation: Yes
Organism_scientific: Bacteroides Thetaiotaomicron
Organism_taxid: 818
Strain: Vpi-5482
Gene: Bt_3698, Susg
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Rosetta(De3)Plyss
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pet-28rtev
symmetry Space Group: P 41
R_factor 0.184 R_Free 0.216
crystal
cell
length a length b length c angle alpha angle beta angle gamma
128.041 128.041 130.483 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.30 Å
ligand BGC, CA, EDO, GLC enzyme
Gene BT
Gene
Ontology
ChainFunctionProcessComponent
A, B


Primary referenceSusG: a unique cell-membrane-associated alpha-amylase from a prominent human gut symbiont targets complex starch molecules., Koropatkin NM, Smith TJ, Structure. 2010 Feb 10;18(2):200-15. PMID:20159465
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (229 Kb) [Save to disk]
  • Biological Unit Coordinates (3k8l.pdb1.gz) 114 Kb
  • Biological Unit Coordinates (3k8l.pdb2.gz) 111 Kb
  • LPC: Ligand-Protein Contacts for 3K8L
  • CSU: Contacts of Structural Units for 3K8L
  • Structure Factors (838 Kb)
  • Retrieve 3K8L in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 3K8L from S2C, [Save to disk]
  • Re-refined 3k8l structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 3K8L 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 3K8L
  • 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 3K8L, from MSDmotif at EBI
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [3k8l_A] [3k8l_B] [3k8l]
  • SWISS-PROT database:
  • Domain organization of by SWISSPFAM
  • Domain found in 3K8L: [Aamy ] by SMART
  • Other resources with information on 3K8L
  • Community annotation for 3K8L 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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