2y0s
From Proteopedia
Crystal structure of Sulfolobus shibatae RNA polymerase in P21 space group
Structural highlights
FunctionRPO1N_SACSH DNA-dependent RNA polymerase (RNAP) catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. Forms the clamp head domain.[HAMAP-Rule:MF_00863][1] [2] [3] Publication Abstract from PubMedWe review recent results on the complete structure of the archaeal RNAP (RNA polymerase) enzyme of Sulfolobus shibatae. We compare the three crystal forms in which this RNAP packs (space groups P212121, P21212 and P21) and provide a preliminary biophysical characterization of the newly identified 13-subunit Rpo13. The availability of different crystal forms for this RNAP allows the analysis of the packing degeneracy and the intermolecular interactions that determine this degeneracy. We observe the pivotal role played by the protruding stalk composed of subunits Rpo4 and Rpo7 in the lattice contacts. Aided by MALLS (multi-angle laser light scattering), we have initiated the biophysical characterization of the recombinantly expressed and purified subunit Rpo13, a necessary step towards the understanding of Rpo13's role in archaeal transcription. Archaeal RNA polymerase: the influence of the protruding stalk in crystal packing and preliminary biophysical analysis of the Rpo13 subunit.,Wojtas M, Peralta B, Ondiviela M, Mogni M, Bell SD, Abrescia NG Biochem Soc Trans. 2011 Jan 19;39(1):25-30. PMID:21265742[4] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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