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The [4Fe-4S] clusters of Rpo3 are key determinants in the post Rpo3/Rpo11 heterodimer formation of RNA polymerase in Methanosarcina acetivorans.

MicrobiologyOpen - 1 Feb 2017

Jennings Matthew E, Lessner Faith H, Karr Elizabeth A, Lessner Daniel J

Abstract excerpt

Subunits Rpo3 and Rpb3/AC40 of RNA polymerase (RNAP) from many archaea and some eukaryotes, respectively, contain a ferredoxin-like domain (FLD) predicted to bind one or two [4Fe-4S] clusters postulated to play a role in regulating the assembly of RNAP. To test this hypothesis, the two [4Fe-4S] cluster Rpo3 from Methanosarcina acetivorans was modified to generate variants that lack the FLD or each [4Fe-4S]...

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PMID: 27557794
DOI: 10.1002/mbo3.399
PMCID: PMC5300874

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Source receipt: pubmed, retrieved 6 Sept 2026.

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