2BL5

Solution structure of the KH-QUA2 region of the Xenopus STAR-GSG Quaking protein.


ChainDomainClassArchitectureTopologyHomology
A3.30.1370.10 Alpha Beta 2-Layer Sandwich Ribosomal Protein S8 Chain: A, domain 1

Protein Family Annotation Pfam Database Homepage

ChainsAccessionIdentifierDescriptionCommentsSource
APF16551Putative nuclear localisation signal of quaking (Quaking_NLS)Putative nuclear localisation signal of quakingQuaking_NLS is the very C-terminal region of quaking proteins that is purported to be the nuclear localisation signal [1,2].Domain
APF16544Homodimerisation region of STAR domain protein (STAR_dimer)Homodimerisation region of STAR domain proteinThis family is the homodimerisation domain of quaking proteins. Quaking-dimer is a helix-turn-helix dimer with an additional helix in the turn region. Dimerisation is required for adequate RNA-binding. Quaking is a prototypical member of the STAR (si ...This family is the homodimerisation domain of quaking proteins. Quaking-dimer is a helix-turn-helix dimer with an additional helix in the turn region. Dimerisation is required for adequate RNA-binding. Quaking is a prototypical member of the STAR (signal transducer and activator of RNA) protein family, which plays key roles in post-transcriptional gene regulation by controlling mRNA translation, stability and splicing [1]. STAR_dimer is the homodimerisation domain, Qua1 of the STAR domain of a series of proteins referred to as STAR/GSG, or Signal Transduction and Activation of RNA/GRP33, Sam68, GLD-1 family. These are conserved in higher eukaryotes and are RNA-binding transcriptional regulators. The STAR domain is a KH domain flanked by two homologous regions, Qua1 and Qua2. Qua1, this family, is the homodimerisation domain, and the KH plus Qua2 is the RNA-binding region [2].
Domain
APF00013KH domain (KH_1)KH domainKH motifs bind RNA in vitro. Autoantibodies to Nova, a KH domain protein, cause paraneoplastic opsoclonus ataxia.Domain