Protein Family Models

The PRC-barrel is an all beta barrel domain found in photosystem reaction centre subunit H of the purple bacteria and RNA metabolism proteins of the RimM group. PRC-barrels are approximately 80 residues long, and found widely represented in bacteria, archaea and plants. This domain is also present at the carboxyl terminus of the pan-bacterial protein RimM, which is involved in ribosomal maturation and processing of 16S rRNA. A family of small proteins conserved in all known euryarchaea are composed entirely of a single stand-alone copy of the domain [1]. [1]. 12429060. The PRC-barrel: a widespread, conserved domain shared by photosynthetic reaction center subunits and proteins of RNA metabolism. Anantharaman V, Aravind L;. Genome Biol 2002;3:RESEARCH0061. [2]. 10024457. Refined crystal structures of reaction centres from Rhodopseudomonas viridis in complexes with the herbicide atrazine and two chiral atrazine derivatives also lead to a new model of the bound carotenoid. Lancaster CR, Michel H;. J Mol Biol 1999;286:883-898. (from Pfam)

Date:

2024-10-16

The RimM protein is essential for efficient processing of 16S rRNA [1]. The RimM protein was shown to have affinity for free ribosomal 30S subunits but not for 30S subunits in the 70S ribosomes [1]. This N-terminal domain is found associated with a PRC-barrel domain [2]. [1]. 9422595. RimM and RbfA are essential for efficient processing of 16S rRNA in Escherichia coli. Bylund GO, Wipemo LC, Lundberg LA, Wikstrom PM;. J Bacteriol 1998;180:73-82. [2]. 12429060. The PRC-barrel: a widespread, conserved domain shared by photosynthetic reaction center subunits and proteins of RNA metabolism. Anantharaman V, Aravind L;. Genome Biol 2002;3:RESEARCH0061. (from Pfam)

Date:

2024-10-16

ribosome maturation factor RimM is an accessory protein needed during the final step in the assembly of 30S ribosomal subunit, possibly for assembly of the head region

Date:

2023-02-22

This family consists of the bacterial protein RimM (YfjA, 21K), a 30S ribosomal subunit-binding protein implicated in 16S ribosomal RNA processing. The protein contains a PRC-barrel domain that it shares with other protein families (PF05239) and a unique domain (PF01782).

Gene:

rimM

Date:

2024-05-30