1BKD	Complex(Oncogene Protein Exchange Factor	date	Jul 06, 1998
title	Complex Of Human H-Ras With Human Sos-1
authors	P.A.Boriack-Sjodin, S.M.Margarit, D.B.Sagi, J.Kuriyan
compound		source
Molecule: H-Ras Chain: R Fragment: Residues 1-166 Synonym: P21 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Cell_line: Bl21 Organ: Brain Cellular_location: Cytoplasm Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21 (De3) Expression_system_plasmid: Proex Htb
Molecule: Son Of Sevenless-1 Chain: S Fragment: Ras Guanine Nucleotide Exchange Factor Fragment Synonym: Sos Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Cell_line: Bl21 Organ: Brain Cellular_location: Membrane-Anchored Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21 (De3) Expression_system_plasmid: Proex Htb
symmetry	Space Group: I 4 2 2	R_factor 0.222 R_Free 0.281
crystal cell	length a length b length c angle alpha angle beta angle gamma 142.700 142.700 207.900 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.80 Å
note	1BKD (Molecule of the Month:pdb148)
related structures	by homologous chain: 1PLK, 1PLL, 1XD2
Gene Ontology	Chain Function Process Component R S
Primary reference	The structural basis of the activation of Ras by Sos., Boriack-Sjodin PA, Margarit SM, Bar-Sagi D, Kuriyan J, Nature 1998 Jul 23;394(6691):337-43. PMID:9690470

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (105 Kb) [Save to disk] Biological Unit Coordinates (1bkd.pdb1.gz) 394 Kb CSU: Contacts of Structural Units for 1BKD Likely Quarternary Molecular Structure file(s) for 1BKD Structure Factors (207 Kb) Retrieve 1BKD in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1BKD from S2C, [Save to disk] Re-refined 1bkd structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1BKD 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 1BKD

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 1BKD, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1bkdr_, region R [Jmol] [rasmolscript] [script source]     - Domain d1bkds_, region S [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: [1bkd_S] [1bkd_R] [1bkd] SWISS-PROT database: [P01112] [Q07889] Domain organization of [RASH_HUMAN] [SOS1_HUMAN] by SWISSPFAM Domains found in 1BKD: [RAS] [RasGEF] [RasGEFN ] by SMART

Other resources with information on 1BKD

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

Movements, Movies and Images

Domain movements in 1BKD from the Database of Macromolecular Movements. Images from IMB Jena Image Library of Biological Macromolecules.

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