2XWB	Hydrolase	date	Nov 01, 2010
title	Crystal Structure Of Complement C3b In Complex With Factors
authors	F.Forneris, D.Ricklin, J.Wu, A.Tzekou, R.S.Wallace, J.D.Lambris, P
compound		source
Molecule: Complement C3b Beta Chain Chain: A, C Fragment: Residues 23-664		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Organ: Blood Tissue: Plasma
Molecule: Complement C3b Alpha' Chain Chain: B, D Fragment: Residues 752-1663		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Organ: Blood Tissue: Plasma
Molecule: Complement Factor B Chain: F, H Fragment: Residues 35-764 Synonym: C3c5 Convertase, Glycine-Rich Beta Glycoprotein, Properdin Factor B; Ec: 3.4.21.47 Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Organ: Blood Tissue: Plasma Expression_system: Homo Sapiens Expression_system_common: Human Expression_system_taxid: 9606 Expression_system_cell_line: Hek293-Es Expression_system_vector: Pupe06.08 Expression_system_plasmid: Pupe.06.08
Molecule: Complement Factor D Chain: I, J Ec: 3.4.21.46 Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Organ: Blood Tissue: Plasma Expression_system: Homo Sapiens Expression_system_common: Human Expression_system_taxid: 9606 Expression_system_cell_line: Hek293-Es Expression_system_vector: Pupe06.08 Expression_system_plasmid: Pupe.05.05
symmetry	Space Group: P 1	R_factor 0.189 R_Free 0.244
crystal cell	length a length b length c angle alpha angle beta angle gamma 108.275 135.775 149.975 95.47 110.69 113.39
method	X-Ray Diffraction	resolution	3.49 Å
ligand	BMA, GOL, MG, NAG	enzyme	Hydrolase E.C.3.4.21.47 BRENDA
Gene Ontology	Chain Function Process Component A, C D, B H, F J, I
Primary reference	Structures of C3b in complex with factors B and D give insight into complement convertase formation., Forneris F, Ricklin D, Wu J, Tzekou A, Wallace RS, Lambris JD, Gros P, Science. 2010 Dec 24;330(6012):1816-20. PMID:21205667

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (1681 Kb) [Save to disk] Biological Unit Coordinates (2xwb.pdb1.gz) 837 Kb Biological Unit Coordinates (2xwb.pdb2.gz) 840 Kb Biological Unit Coordinates (2xwb.pdb3.gz) 840 Kb Biological Unit Coordinates (2xwb.pdb4.gz) 837 Kb LPC: Ligand-Protein Contacts for 2XWB CSU: Contacts of Structural Units for 2XWB Structure Factors (3875 Kb) Retrieve 2XWB in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2XWB from S2C, [Save to disk] Re-refined 2xwb structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2XWB 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 2XWB

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 2XWB, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2xwb_C] [2xwb_D] [2xwb_H] [2xwb_J] [2xwb_F] [2xwb] [2xwb_A] [2xwb_I] [2xwb_B] SWISS-PROT database: Domain organization of by SWISSPFAM Domains found in 2XWB: [A2M] [A2M_N_2] [A2M_recep] [C345C] [CCP] [Thiol-ester_cl] [Tryp_SPc] [VWA ] by SMART

Other resources with information on 2XWB

Community annotation for 2XWB at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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