4ACQ Hydrolase Inhibitor date Dec 17, 2011
title Alpha-2 Macroglobulin
authors A.Marrero, S.Duquerroy, S.Trapani, T.Goulas, T.Guevara, G.R.Ander J.Navaza, L.Sottrup-Jensen, F.X.Gomis-Ruth
compound source
Molecule: Alpha-2-Macroglobulin
Chain: A, B, C, D
Synonym: Alpha-2-M, C3 And Pzp-Like Alpha-2-Macroglobulin D Containing Protein 5;
Other_details: Methylglutamine At A 975, B 975, C 975, And
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Tissue: Plasma
symmetry Space Group: P 21 21 21
R_factor 0.239 R_Free 0.260
crystal
cell
length a length b length c angle alpha angle beta angle gamma
130.690 260.300 281.800 90.00 90.00 90.00
method X-Ray Diffractionresolution 4.30 Å
ligand MAN, MEQ, NAG enzyme
Gene
Ontology
ChainFunctionProcessComponent
A, D, C, B
  • endopeptidase inhibitor acti...
  • serine-type endopeptidase in...


  • Primary referenceThe Crystal Structure of Human alpha(2) -Macroglobulin Reveals a Unique Molecular Cage., Marrero A, Duquerroy S, Trapani S, Goulas T, Guevara T, Andersen GR, Navaza J, Sottrup-Jensen L, Gomis-Ruth FX, Angew Chem Int Ed Engl. 2012 Jan 31. doi: 10.1002/anie.201108015. PMID:22290936
    Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (1705 Kb) [Save to disk]
  • Biological Unit Coordinates (4acq.pdb1.gz) 1682 Kb
  • LPC: Ligand-Protein Contacts for 4ACQ
  • CSU: Contacts of Structural Units for 4ACQ
  • Structure Factors (550 Kb)
  • Retrieve 4ACQ in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 4ACQ from S2C, [Save to disk]
  • Re-refined 4acq structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 4ACQ 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 4ACQ
  • 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 4ACQ, from MSDmotif at EBI
  • Fold representative 4acq from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [4acq_B] [4acq_A] [4acq_C] [4acq] [4acq_D]
  • SWISS-PROT database:
  • Domain organization of by SWISSPFAM
  • Domains found in 4ACQ: [A2M] [A2M_N_2] [A2M_recep] [Thiol-ester_cl ] by SMART
  • Other resources with information on 4ACQ
  • Community annotation for 4ACQ at PDBWiki (http://pdbwiki.org)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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