H/ACA ribonucleoprotein complex subunit 1 - P28007 (GAR1_YEAST)


Protein Feature View of PDB entries mapped to a UniProtKB sequence  

  • Number of PDB entries for P28007: 2
Non-catalytic component of the H/ACA small nucleolar ribonucleoprotein (H/ACA snoRNP), which catalyzes pseudouridylation of rRNA and is required for ribosome biogenesis (PubMed:9303321, PubMed:9843512). This involves the isomerization of uridine such that the ribose is subsequently attached to C5, instead of the normal N1 (PubMed:9303321, PubMed:9843512). Pseudouridine ("psi") residues may serve to stabilize the conformation of rRNAs (PubMed:9843512). The H/ACA snoRNP complex also mediates pseudouridylation of other types of RNAs (PubMed:21131909). The H/ACA snoRNP complex mediates pseudouridylation at position 93 in U2 snRNA (PubMed:21131909). Essential for growth (PubMed:9303321). UniProt
Pathway Maps
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Subunit Structure
Component of the small nucleolar ribonucleoprotein particles containing H/ACA-type snoRNAs (H/ACA snoRNPs) (PubMed:9556561, PubMed:9843512, PubMed:21131909). The protein component of the H/ACA snoRNP contains CBF5, GAR1, NHP2 and NOP10 (PubMed:9556561, PubMed:9843512, PubMed:21131909). The complex contains a stable core composed of CBF5 and NOP10, to which GAR1 and NHP2 subsequently bind. Interacts with snoRNAs (PubMed:9556561, PubMed:9843512). UniProt
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