1KB3 Hydrolase date Nov 05, 2001
title Three Dimensional Structure Analysis Of The R195a Variant Of Pancreatic Alpha Amylase
authors S.Numao, R.Maurus, G.Sidhu, Y.Wang, C.M.Overall, G.D.Brayer, S.G.W
compound source
Molecule: Alpha-Amylase, Pancreatic
Chain: A
Synonym: 1,4-Alpha-D-Glucan Glucanohydrolase, Pancreatic Al Amylase, Pa;
Engineered: Yes
Mutation: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Expression_system: Pichia Pastoris
Expression_system_taxid: 4922
symmetry Space Group: P 21 21 21
R_factor 0.193 R_Free NULL
length a length b length c angle alpha angle beta angle gamma
53.023 68.879 131.732 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.10 Å
ligand CA, NAG, PCA enzyme Hydrolase E.C. BRENDA
related structures by homologous chain: 1KGW, 1PPI

Primary referenceProbing the role of the chloride ion in the mechanism of human pancreatic alpha-amylase., Numao S, Maurus R, Sidhu G, Wang Y, Overall CM, Brayer GD, Withers SG, Biochemistry 2002 Jan 8;41(1):215-25. PMID:11772019
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (87 Kb) [Save to disk]
  • Biological Unit Coordinates (1kb3.pdb1.gz) 83 Kb
  • LPC: Ligand-Protein Contacts for 1KB3
  • CSU: Contacts of Structural Units for 1KB3
  • Likely Quarternary Molecular Structure file(s) for 1KB3
  • Retrieve 1KB3 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1KB3 from S2C, [Save to disk]
  • View 1KB3 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 1KB3
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 1KB3, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1kb3a2, region A:1-403 [Jmol] [rasmolscript] [script source]
        - Domain d1kb3a1, region A:404-496 [Jmol] [rasmolscript] [script source]
  • Fold representative 1kb3 from FSSP and Dali (Families of Structurally Similar Proteins)
  • 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: [1kb3] [1kb3_A]
  • SWISS-PROT database: [P04746]
  • Domain organization of [AMYP_HUMAN] by SWISSPFAM
  • Domains found in 1KB3: [Aamy] [Aamy_C ] by SMART
  • Other resources with information on 1KB3
  • Community annotation for 1KB3 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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