2ASS	Cell Cycle Ligase Protein Turnover	date	Aug 24, 2005
title	Crystal Structure Of The Skp1-Skp2-Cks1 Complex
authors	B.Hao, N.Zhang, B.A.Schulman, G.Wu, M.Pagano, N.P.Pavletich
compound		source
Molecule: S-Phase Kinase-Associated Protein 1a Chain: A Synonym: Cyclin Acdk2-Associated Protein P19, P19a, P19skp Polymerase II Elongation Factor-Like Protein, Organ Of Cort 2, Ocp-II Protein, Ocp-2, Transcription Elongation Factor B Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Skp1a, Emc19, Ocp2, Skp1, Tceb1l Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21 (De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pgex4t1
Molecule: S-Phase Kinase-Associated Protein 2 Chain: B Synonym: F-Box Protein Skp2, Cyclin Acdk2-Associated Prote P45skp2, F-Boxlrr-Repeat Protein 1; Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Skp2, Fbxl1 Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21 (De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pgex4t1
Molecule: Cyclin-Dependent Kinases Regulatory Subunit 1 Chain: C Synonym: Cks-1 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Cks1, Cks1b Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21 (De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pgex4t3
symmetry	Space Group: P 32 2 1	R_factor 0.214 R_Free 0.242
crystal cell	length a length b length c angle alpha angle beta angle gamma 149.332 149.332 99.916 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	3.00 Å
ligand	BEN, PO4	enzyme
Gene Ontology	Chain Function Process Component A C
Primary reference	Structural Basis of the Cks1-Dependent Recognition of p27(Kip1) by the SCF(Skp2) Ubiquitin Ligase., Hao B, Zheng N, Schulman BA, Wu G, Miller JJ, Pagano M, Pavletich NP, Mol Cell 2005 Oct 7;20(1):9-19. PMID:16209941

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (95 Kb) [Save to disk] Biological Unit Coordinates (2ass.pdb1.gz) 89 Kb Biological Unit Coordinates (2ass.pdb2.gz) 175 Kb Biological Unit Coordinates (2ass.pdb3.gz) 175 Kb LPC: Ligand-Protein Contacts for 2ASS CSU: Contacts of Structural Units for 2ASS Likely Quarternary Molecular Structure file(s) for 2ASS Structure Factors (282 Kb) Retrieve 2ASS in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2ASS from S2C, [Save to disk] Re-refined 2ass structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2ASS in 3D

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Visual 3D analysis of 2ASS

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 2ASS, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2ass_A] [2ass_C] [2ass] [2ass_B] SWISS-PROT database: [P61024] [P63208] [Q13309] Domain organization of [CKS1_HUMAN] [SKP1_HUMAN] [SKP2_HUMAN] by SWISSPFAM Domains found in 2ASS: [CKS] [FBOX] [LRR] [Skp1 ] by SMART

Other resources with information on 2ASS

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

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