1SGZ Hydrolase date Feb 24, 2004
title Crystal Structure Of Unbound Beta-Secretase Catalytic Domain.
authors L.Hong, J.Tang
compound source
Molecule: Beta-Secretase
Chain: A, B, C, D
Synonym: Beta-Site App Cleaving Enzyme, Beta-Site Amyloid Precursor Protein Cleaving Enzyme, Aspartyl Protease 2, Asp 2, Asp2, Membrane-Associated Aspartic Protease 2, Memapsin-2;
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Bace, Bace1
Expression_system: Escherichia Coli Bl21
Expression_system_taxid: 511693
Expression_system_strain: Bl21
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pet11a
symmetry Space Group: P 1 21 1
R_factor 0.196 R_Free 0.228
length a length b length c angle alpha angle beta angle gamma
86.160 130.812 88.651 90.00 97.27 90.00
method X-Ray Diffractionresolution 2.00 Å
enzyme Hydrolase E.C. BRENDA
note 1SGZ (Molecule of the Month:pdb115)
related structures by homologous chain: 1XN2, 1XN3
A, D, C, B

Primary referenceFlap position of free memapsin 2 (beta-secretase), a model for flap opening in aspartic protease catalysis., Hong L, Tang J, Biochemistry 2004 Apr 27;43(16):4689-95. PMID:15096037
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (269 Kb) [Save to disk]
  • Biological Unit Coordinates (1sgz.pdb1.gz) 69 Kb
  • Biological Unit Coordinates (1sgz.pdb2.gz) 70 Kb
  • Biological Unit Coordinates (1sgz.pdb3.gz) 70 Kb
  • Biological Unit Coordinates (1sgz.pdb4.gz) 70 Kb
  • CSU: Contacts of Structural Units for 1SGZ
  • Likely Quarternary Molecular Structure file(s) for 1SGZ
  • Retrieve 1SGZ in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1SGZ from S2C, [Save to disk]
  • View 1SGZ 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 1SGZ
  • 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 1SGZ, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1sgza_, region A [Jmol] [rasmolscript] [script source]
        - Domain d1sgzb_, region B [Jmol] [rasmolscript] [script source]
        - Domain d1sgzc_, region C [Jmol] [rasmolscript] [script source]
        - Domain d1sgzd_, region D [Jmol] [rasmolscript] [script source]
  • Fold representative 1sgz 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: [1sgz_A] [1sgz] [1sgz_B] [1sgz_D] [1sgz_C]
  • SWISS-PROT database: [P56817]
  • Belongs to the β-amyloid cleaving enzyme (bace1) family according to TCDB.
  • Domain organization of [BACE1_HUMAN] by SWISSPFAM
  • Other resources with information on 1SGZ
  • Community annotation for 1SGZ at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

  • You may enter another PDB ID code
    Go [Back], to the [PDB Lite page], to the [OCA Search page] or to the [PDB Home page]
    OCA© by Jaime Prilusky, 1996-2014
    Bioinformatics Unit
    Weizmann Institute of Science