3BQQ	Lipid Binding Protein	date	Dec 20, 2007
title	Crystal Structure Of Human Saposin D (Triclinic)
authors	G.G.Prive, K.Popovic
compound		source
Molecule: Proactivator Polypeptide Chain: C, A, B, D Fragment: Saposin D, Residues 405-484 Synonym: Ceramide Activator Protein Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Psap Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21(De3) Rosetta-Gami 2 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet-16
symmetry	Space Group: P 1	R_factor 0.195 R_Free 0.242
crystal cell	length a length b length c angle alpha angle beta angle gamma 40.660 41.120 65.450 89.90 81.20 71.40
method	X-Ray Diffraction	resolution	2.00 Å
Gene Ontology	Chain Function Process Component A, D, C, B
Primary reference	Structures of the human ceramide activator protein saposin D., Popovic K, Prive GG, Acta Crystallogr D Biol Crystallogr. 2008 May;64(Pt 5):589-94. Epub 2008, Apr 19. PMID:18453694

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (59 Kb) [Save to disk] Biological Unit Coordinates (3bqq.pdb1.gz) 15 Kb Biological Unit Coordinates (3bqq.pdb2.gz) 14 Kb Biological Unit Coordinates (3bqq.pdb3.gz) 15 Kb Biological Unit Coordinates (3bqq.pdb4.gz) 14 Kb CSU: Contacts of Structural Units for 3BQQ Likely Quarternary Molecular Structure file(s) for 3BQQ Structure Factors (381 Kb) Retrieve 3BQQ in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3BQQ from S2C, [Save to disk] Re-refined 3bqq structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3BQQ 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 3BQQ

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 3BQQ, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3bqq_C] [3bqq_A] [3bqq_D] [3bqq] [3bqq_B] SWISS-PROT database: [P07602] Belongs to the amoebapore (amoebapore) family according to TCDB. Domain organization of [SAP_HUMAN] by SWISSPFAM Domain found in 3BQQ: [SapB ] by SMART

Other resources with information on 3BQQ

Community annotation for 3BQQ at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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