The S4 domain is a small domain consisting of 60-65 amino acid residues that was detected in the bacterial ribosomal protein S4, eukaryotic ribosomal S9, two families of pseudouridine synthases, a novel family of predicted RNA methylases, a yeast pro ...
The S4 domain is a small domain consisting of 60-65 amino acid residues that was detected in the bacterial ribosomal protein S4, eukaryotic ribosomal S9, two families of pseudouridine synthases, a novel family of predicted RNA methylases, a yeast protein containing a pseudouridine synthetase and a deaminase domain, bacterial tyrosyl-tRNA synthetases, and a number of uncharacterized, small proteins that may be involved in translation regulation [1]. The S4 domain probably mediates binding to RNA.
This family contains a central domain Pfam:PF00013, hence the amino and carboxyl terminal domains are stored separately. This is a minimal carboxyl-terminal domain. Some are much longer.
This entry represents a small helical domain at the C-terminus of RsmI that folds into a typical three helical DNA/RNA binding bundle containing HTH motif. This domain is found in Ribosomal RNA small subunit methyltransferase I (RsmI) and related pro ...
This entry represents a small helical domain at the C-terminus of RsmI that folds into a typical three helical DNA/RNA binding bundle containing HTH motif. This domain is found in Ribosomal RNA small subunit methyltransferase I (RsmI) and related proteins. RsmI is an S-adenosyl-L-methionine-dependent methyltransferase that catalyses the 2-O-methylation of the ribose of cytidine 1402 (C1402) in 16S rRNA. It may play a role in fine-tuning the shape and functions of the P-site to increase the translation fidelity. In vitro, active on the assembled 30S subunit, but not naked 16S rRNA or 70S ribosomes.
This family uses S-AdoMet in the methylation of diverse substrates. This family includes a related group of bacterial proteins of unknown function, including Swiss:P45528. This family includes the methylase Dipthine synthase.
