This entry represents the helical bundle domain found within the C-terminal dimerization domain of Elongator complex protein 1 (ELP1), from eukaryotes. Elongator is a conserved protein complex implicated in multiple processes including regulation of ...
This entry represents the helical bundle domain found within the C-terminal dimerization domain of Elongator complex protein 1 (ELP1), from eukaryotes. Elongator is a conserved protein complex implicated in multiple processes including regulation of transcription, alpha-tubulin acetylation and tRNA modification. Mutations in the ELP1 gene have been shown to cause the neurodegenerative disease familial dysautonomia [1]. The C-terminal dimerization domain consists of 28 alpha-helices organised in three domains: an elongated alpha-solenoid domain (helices 1 to 14); a TPR domain, formed by six double-helix repeats (helices 15 to 26); and a three-helix bundle, C-terminal cap (helices 26 to 28) [2]. ELP1 self-association contributes to its stability and is important for Elongator assembly [2]. ELP1 is considered to function both as a scaffold, for Elongator complex ELP2 and ELP3 binding, and as a docking site for various factors that regulate Elongator activity [2-4]. Also known as IKAP, ELP1 acts as a regulator of IkB kinase complex involved in proinflammatory cytokine signalling [5].
Radical SAM proteins catalyse diverse reactions, including unusual methylations, isomerisation, sulphur insertion, ring formation, anaerobic oxidation and protein radical formation.
PAXNEB or PAX6 neighbour is found in several eukaryotic organisms. PAXNED is an RNA polymerase II Elongator protein subunit [2]. It is part of the HAP subcomplex of Elongator, which is a six-subunit component of the RNA polymerase II holoenzyme. The ...
PAXNEB or PAX6 neighbour is found in several eukaryotic organisms. PAXNED is an RNA polymerase II Elongator protein subunit [2]. It is part of the HAP subcomplex of Elongator, which is a six-subunit component of the RNA polymerase II holoenzyme. The HAP subcomplex is required for Elongator structural integrity and histone acetyltransferase activity [2]. This protein family has a P-loop-like motif and adopts a RecA-ATPase-like fold, lacking the conserved sequence signature of ATPases [4].