1KXV Hydrolase, Immune System date Feb 01, 2002
title Camelid Vhh Domains In Complex With Porcine Pancreatic Alpha-Amylase
authors A.Desmyter, S.Spinelli, F.Payan, M.Lauwereys, L.Wyns, S.Muyldermans, C.Cambillau
compound source
Molecule: Alpha-Amylase, Pancreatic
Chain: A, B
Synonym: 1,4-Alpha-D-Glucan Glucanohydrolase
Organism_scientific: Sus Scrofa
Organism_common: Pig
Organism_taxid: 9823
Other_details: Panceatic Enzyme

Molecule: Camelid Vhh Domain Cab10
Chain: C, D
Engineered: Yes

Organism_scientific: Camelus Dromedarius
Organism_common: Arabian Camel
Organism_taxid: 9838
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Wk
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Phen6
symmetry Space Group: P 1
R_factor 0.205 R_Free 0.229
length a length b length c angle alpha angle beta angle gamma
57.568 60.990 107.333 98.78 100.88 101.14
method X-Ray Diffractionresolution 1.60 Å
enzyme Hydrolase E.C. BRENDA
related structures by homologous chain: 1HNY, 1KXQ, 1MVF, 1YC7
A, B

Primary referenceThree camelid VHH domains in complex with porcine pancreatic alpha-amylase. Inhibition and versatility of binding topology., Desmyter A, Spinelli S, Payan F, Lauwereys M, Wyns L, Muyldermans S, Cambillau C, J Biol Chem 2002 Jun 28;277(26):23645-50. PMID:11960990
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (223 Kb) [Save to disk]
  • Biological Unit Coordinates (1kxv.pdb1.gz) 112 Kb
  • Biological Unit Coordinates (1kxv.pdb2.gz) 111 Kb
  • CSU: Contacts of Structural Units for 1KXV
  • Likely Quarternary Molecular Structure file(s) for 1KXV
  • Retrieve 1KXV in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1KXV from S2C, [Save to disk]
  • View 1KXV 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 1KXV
  • 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 1KXV, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1kxva2, region A:1-403 [Jmol] [rasmolscript] [script source]
        - Domain d1kxva1, region A:404-496 [Jmol] [rasmolscript] [script source]
        - Domain d1kxvb2, region B:1-403 [Jmol] [rasmolscript] [script source]
        - Domain d1kxvb1, region B:404-496 [Jmol] [rasmolscript] [script source]
        - Domain d1kxvc_, region C [Jmol] [rasmolscript] [script source]
        - Domain d1kxvd_, region D [Jmol] [rasmolscript] [script source]
  • Fold representative 1kxv 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: [1kxv] [1kxv_C] [1kxv_A] [1kxv_B] [1kxv_D]
  • SWISS-PROT database: [P00690]
  • Domain organization of [AMYP_PIG] by SWISSPFAM
  • Domains found in 1KXV: [Aamy] [Aamy_C] [IGv ] by SMART
  • Other resources with information on 1KXV
  • Community annotation for 1KXV 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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