1M4H	Hydrolase Hydrolase Inhibitor	date	Jul 02, 2002
title	Crystal Structure Of Beta-Secretase Complexed With Inhibitor
authors	L.Hong, R.T.Turner, G.Koelsch, A.K.Ghosh, J.Tang
compound		source
Molecule: Beta-Secretase Chain: A, B Fragment: Protease Domain Synonym: Memapsin-2 Ec: 3.4.23.- Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Bace Expression_system: Escherichia Coli Expression_system_taxid: 562
Molecule: Inhibitor Om00-3 Chain: C, D Engineered: Yes		Synthetic: Yes Organism_scientific: Synthetic Construct Organism_taxid: 32630
symmetry	Space Group: P 21 21 21	R_factor 0.216 R_Free 0.271
crystal cell	length a length b length c angle alpha angle beta angle gamma 86.450 88.787 130.954 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.10 Å
ligand	1OL	enzyme	Hydrolase E.C.3.4.23 BRENDA
note	1M4H (Molecule of the Month:pdb115)
related structures	by homologous chain: 1W51, 1XN3
Gene Ontology	Chain Function Process Component A, B
Primary reference	Crystal structure of memapsin 2 (beta-secretase) in complex with an inhibitor OM00-3., Hong L, Turner RT 3rd, Koelsch G, Shin D, Ghosh AK, Tang J, Biochemistry 2002 Sep 10;41(36):10963-7. PMID:12206667

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (138 Kb) [Save to disk] Biological Unit Coordinates (1m4h.pdb1.gz) 68 Kb Biological Unit Coordinates (1m4h.pdb2.gz) 68 Kb LPC: Ligand-Protein Contacts for 1M4H CSU: Contacts of Structural Units for 1M4H Likely Quarternary Molecular Structure file(s) for 1M4H Structure Factors (863 Kb) Retrieve 1M4H in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1M4H from S2C, [Save to disk] Re-refined 1m4h structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1M4H in 3D

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Visual 3D analysis of 1M4H

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 3D motif for 1M4H, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1m4ha_, region A [Jmol] [rasmolscript] [script source]     - Domain d1m4hb_, region B [Jmol] [rasmolscript] [script source] 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: [1m4h_D] [1m4h] [1m4h_A] [1m4h_C] [1m4h_B] 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 1M4H

Community annotation for 1M4H at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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