3BAK Hydrolase date Nov 08, 2007
title N298s Mutant Of Human Pancreatic Alpha-Amylase In Complex Wi
authors J.R.Fredriksen, R.Maurus, G.D.Brayer
compound source
Molecule: Pancreatic Alpha-Amylase
Chain: A
Synonym: Pa, 1,4-Alpha-D- Glucan Glucanohydrolase
Engineered: Yes
Mutation: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Amy2a
Expression_system: Pichia Pastoris
Expression_system_taxid: 4922
symmetry Space Group: P 21 21 21
R_factor 0.174 R_Free 0.206
length a length b length c angle alpha angle beta angle gamma
52.439 68.977 131.318 90.00 90.00 90.00
method X-Ray Diffractionresolution 1.90 Å
ligand CA, NAG, NO3, PCA enzyme Hydrolase E.C. BRENDA

Primary referenceAlternative catalytic anions differentially modulate human alpha-amylase activity and specificity(,)., Maurus R, Begum A, Williams LK, Fredriksen JR, Zhang R, Withers SG, Brayer GD, Biochemistry. 2008 Mar 18;47(11):3332-44. Epub 2008 Feb 20. PMID:18284212
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (90 Kb) [Save to disk]
  • Biological Unit Coordinates (3bak.pdb1.gz) 86 Kb
  • LPC: Ligand-Protein Contacts for 3BAK
  • CSU: Contacts of Structural Units for 3BAK
  • Likely Quarternary Molecular Structure file(s) for 3BAK
  • Structure Factors (304 Kb)
  • Retrieve 3BAK in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 3BAK from S2C, [Save to disk]
  • Re-refined 3bak structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 3BAK 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 3BAK
  • Cartoon representation from PDB Cartoon
  • 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
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 3BAK, from MSDmotif at EBI
  • Fold representative 3bak from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [3bak_A] [3bak]
  • SWISS-PROT database: [P04746]
  • Domain organization of [AMYP_HUMAN] by SWISSPFAM
  • Domains found in 3BAK: [Aamy] [Aamy_C ] by SMART
  • Other resources with information on 3BAK
  • Community annotation for 3BAK 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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