1SME	Hydrolase Hydrolase Inhibitor	date	Jun 11, 1996
title	Plasmepsin II, A Hemoglobin-Degrading Enzyme From Plasmodium Falciparum, In Complex With Pepstatin A
authors	A.M.Silva, A.Y.Lee, S.V.Gulnik, D.E.Goldberg, J.W.Erickson
compound		source
Molecule: Plasmepsin II Chain: A, B Ec: 3.4.23.39 Engineered: Yes		Organism_scientific: Plasmodium Falciparum Organism_common: Malaria Parasite P. Falciparum Organism_taxid: 5833 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Pet Expression_system_vector_type: Pet Expression_system_plasmid: Pet Vector 22b (Novagen)
Molecule: Pepstatin Chain: C, D Engineered: Yes		Synthetic: Yes Organism_scientific: Streptomyces Argenteolus Subsp. Toyona Organism_taxid: 285516
symmetry	Space Group: P 31 2 1	R_factor 0.195 R_Free NULL
crystal cell	length a length b length c angle alpha angle beta angle gamma 142.100 142.100 97.600 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.70 Å
ligand	IVA, STA	enzyme	Hydrolase E.C.3.4.23.39 BRENDA
related structures	by homologous chain: 1LF3, 1ME6
Gene Ontology	Chain Function Process Component A, B
Primary reference	Structure and inhibition of plasmepsin II, a hemoglobin-degrading enzyme from Plasmodium falciparum., Silva AM, Lee AY, Gulnik SV, Maier P, Collins J, Bhat TN, Collins PJ, Cachau RE, Luker KE, Gluzman IY, Francis SE, Oksman A, Goldberg DE, Erickson JW, Proc Natl Acad Sci U S A 1996 Sep 17;93(19):10034-9. PMID:8816746

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (128 Kb) [Save to disk] Biological Unit Coordinates (1sme.pdb1.gz) 63 Kb Biological Unit Coordinates (1sme.pdb2.gz) 62 Kb LPC: Ligand-Protein Contacts for 1SME CSU: Contacts of Structural Units for 1SME Likely Quarternary Molecular Structure file(s) for 1SME Retrieve 1SME in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1SME from S2C, [Save to disk]

View 1SME 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 1SME

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1SME, from MSDmotif at EBI Genome occurence of 1SME's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1smea_, region A [Jmol] [rasmolscript] [script source]     - Domain d1smeb_, 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: [1sme_D] [1sme_B] [1sme_A] [1sme_C] [1sme] SWISS-PROT database: [P46925] Domain organization of [PLM2_PLAFA] by SWISSPFAM

Other resources with information on 1SME

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

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