Xiphophorus_couchianusFamily: Npa1 Number of Genes: 1
Ensembl IDSymbolEntrez IDRBD RBPome PRIExpresion PathwayPhenotype ParalogOrthologGO
urb1
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Introduction

Pfam

Npa1p is required for ribosome biogenesis and operates in the same functional environment as Rsa3p and Dbp6p during early maturation of 60S ribosomal subunits [1]. The protein partners of Npa1p include eight putative helicases as well as the novel Npa2p factor. Npa1p can also associate with a subset of H/ACA and C/D small nucleolar RNPs (snoRNPs) involved in the chemical modification of residues in the vicinity of the peptidyl transferase centre [2]. The protein has also been referred to as Urb1, and this domain at the N-terminal is one of several conserved regions along the length.

InterPro

Nucleolar pre-ribosomal-associated protein 1 (Npa1) is required for ribosome biogenesis and operates in the same functional environment as Rsa3p and Dbp6p during early maturation of 60S ribosomal subunits [PUBMED:15208443]. The protein partners of Npa1p include eight putative helicases as well as the novel Npa2p factor. Npa1p can also associate with a subset of H/ACA and C/D small nucleolar RNPs (snoRNPs) involved in the chemical modification of residues in the vicinity of the peptidyl transferase centre [PUBMED:15226434]. The protein has also been referred to as Urb1.

Reference

  1. Rosado IV, de la Cruz J; , RNA. 2004;10:1073-1083.: Npa1p is an essential trans-acting factor required for an early step in the assembly of 60S ribosomal subunits in Saccharomyces cerevisiae. PUBMED:15208443 EPMC:15208443 .

  2. Dez C, Froment C, Noaillac-Depeyre J, Monsarrat B, Caizergues-Ferrer M, Henry Y; , Mol Cell Biol. 2004;24:6324-6337.: Npa1p, a component of very early pre-60S ribosomal particles, associates with a subset of small nucleolar RNPs required for peptidyl transferase center modification. PUBMED:15226434 EPMC:15226434.