1KSK	Lyase	date	Jan 13, 2002
title	Structure Of Rsua
authors	J.Sivaraman, V.Sauve, R.Larocque, E.A.Stura, J.D.Schrag, M.Cygler
compound		source
Molecule: Ribosomal Small Subunit Pseudouridine Synthase A Chain: A Synonym: 16s Pseudouridylate 516 Synthase, 16s Pseudouridin Synthase, Uracil Hydrolyase; Ec: 4.2.1.70 Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Dl41
symmetry	Space Group: P 21 21 2	R_factor 0.217 R_Free 0.262
crystal cell	length a length b length c angle alpha angle beta angle gamma 48.771 149.220 35.200 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.00 Å
ligand	MSE, URA	enzyme	Lyase E.C.4.2.1.70 BRENDA
related structures	by homologous chain: 1KSL
Gene Ontology	Chain Function Process Component A
Primary reference	Structure of the 16S rRNA pseudouridine synthase RsuA bound to uracil and UMP., Sivaraman J, Sauve V, Larocque R, Stura EA, Schrag JD, Cygler M, Matte A, Nat Struct Biol 2002 May;9(5):353-8. PMID:11953756

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (46 Kb) [Save to disk] Biological Unit Coordinates (1ksk.pdb1.gz) 42 Kb LPC: Ligand-Protein Contacts for 1KSK CSU: Contacts of Structural Units for 1KSK Likely Quarternary Molecular Structure file(s) for 1KSK Structure Factors (427 Kb) Retrieve 1KSK in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1KSK from S2C, [Save to disk] Re-refined 1ksk structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1KSK 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 1KSK

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 1KSK, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1kska3, region A:1-59 [Jmol] [rasmolscript] [script source]     - Domain d1kska4, region A:60-231 [Jmol] [rasmolscript] [script source]

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1ksk] [1ksk_A] SWISS-PROT database: [P0AA43] Domain organization of [RSUA_ECOLI] by SWISSPFAM Domain found in 1KSK: [S4 ] by SMART

Other resources with information on 1KSK

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

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