This family consists of several archaeal and eukaryotic proteins. The archaeal proteins are found to be expressed within ribosomal operons and several of the sequences are described as ribonuclease P protein subunit p29 proteins [1,2]. The structure ...
This family consists of several archaeal and eukaryotic proteins. The archaeal proteins are found to be expressed within ribosomal operons and several of the sequences are described as ribonuclease P protein subunit p29 proteins [1,2]. The structure of the RNase P subunit, Rpp29, from Methanobacterium thermoautotrophicum has been determined. Mth Rpp29 is a member of the oligonucleotide/oligosaccharide binding fold family. It contains a structured beta-barrel core and unstructured N- and C-terminal extensions bearing several highly conserved amino acid residues that could be involved in RNA contacts in the protein-RNA complex [2]. Rpp29 catalyses the endonucleolytic cleavage of RNA, removing 5'-extranucleotides from tRNA precursor. It interacts with the Rpp25 and Pop5 subunits.
This entry represents the C-terminal domain of human Ribonuclease P/MRP protein subunit POP1 and similar eukaryotic sequences. POP1 is a component of Ribonuclease P that cleaves the 5' leader from precursor tRNAs. The C-terminal domain of POP1 intera ...
This entry represents the C-terminal domain of human Ribonuclease P/MRP protein subunit POP1 and similar eukaryotic sequences. POP1 is a component of Ribonuclease P that cleaves the 5' leader from precursor tRNAs. The C-terminal domain of POP1 interacts with H1 RNA and has a stabilizing role. This domain adopts a beta-barrel structure that is structurally very similar to the C-terminal beta-barrel domains of eIF2 gamma, EF-Tu and tRNA thiouridylase MnmA [1].
Ribonucleases P/MRP protein subunit POP1, N-terminal
This entry represents a conserved region approximately 150 residues long located towards the N-terminus of the POP1 subunit that is common to both the RNase MRP and RNase P ribonucleoproteins (EC:3.1.26.5) [1]. These RNA-containing enzymes generate m ...
This entry represents a conserved region approximately 150 residues long located towards the N-terminus of the POP1 subunit that is common to both the RNase MRP and RNase P ribonucleoproteins (EC:3.1.26.5) [1]. These RNA-containing enzymes generate mature tRNA molecules by cleaving their 5' ends. This is a short N-terminal domain consisting of a small helical core and a long alpha-helix [2], which is enriched with positively charged residues involved in pre-tRNA substrate recognition [2].
Nucleolus and neural progenitor protein, N-terminal
This domain is found at the N-terminal of nucleolus and neural progenitor protein (NEPRO) which may play a role in cortex development as part of the Notch signalling pathway. Downstream of Notch may repress the expression of proneural genes and inhib ...
This domain is found at the N-terminal of nucleolus and neural progenitor protein (NEPRO) which may play a role in cortex development as part of the Notch signalling pathway. Downstream of Notch may repress the expression of proneural genes and inhibit neuronal differentiation thereby maintaining neural progenitors [1]. NEPRO may also play a role in preimplentation embryo development [2]. NEPRO interacts with multiple protein subunits of RMRP and is implicated in Anauxetic dysplasia 3 [3]. NEPRO is likely the human orthologue of RMP1 subunit from yeast and they share a four-helix bundle domain structure.