RPL23A

RPL23A

Target · Ribosomal protein

RPL23A Ribosomal protein L23a · Large ribosomal subunit protein uL23

RPL23A (ribosomal protein L23a, also known as L23A or uL23) is a component of the 60S large ribosomal subunit, the part of the ribosome that takes part in protein synthesis. It is encoded by a gene that also hosts several small nucleolar RNA genes. Browse Assay Genie's current range of RPL23A research reagents below, or read on for the biology behind the target.

Cytoplasm and nucleus60S ribosomal subunit componentHosts four snoRNA genes
156 aa
Protein length
~18 kDa
Molecular weight
17q11.2
Gene locus
uL23 family
Protein family
Target information

What is RPL23A (ribosomal protein L23a)?

RPL23A is a component of the large ribosomal subunit. The ribosome is a large ribonucleoprotein complex responsible for the synthesis of proteins in the cell. Ribosomes consist of a small 40S subunit and a large 60S subunit, which together contain four RNA species and approximately 80 structurally distinct proteins. The RPL23A protein is part of the 60S subunit and binds a specific region of the 26S rRNA; in yeast, the corresponding protein binds a specific site on this rRNA.

The RPL23A gene encodes a protein of the uL23 family, also referred to as the L23P family of ribosomal proteins. UniProt annotates the protein in the cytoplasm and nucleus, and the NCBI summary places it in the cytoplasm. HGNC classifies it among the L ribosomal proteins and among small nucleolar RNA protein coding host genes. The gene is co-transcribed with the U42A, U42B, U101A and U101B small nucleolar RNA genes, which lie in its third, first, second and fourth introns respectively. As is typical for ribosomal protein genes, multiple processed pseudogenes are dispersed through the genome, which is worth bearing in mind when designing nucleic acid assays. Orthologues are annotated in mouse and rat as Rpl23a.

Beyond its structural role, RPL23A may promote p53/TP53 degradation, possibly by stimulating MDM2-mediated TP53 polyubiquitination. The NCBI summary also notes that the protein may be one of the target molecules involved in mediating growth inhibition by interferon. These points make it of interest to researchers studying ribosome biology alongside the p53 pathway.

Ribosome biology

RPL23A is a 60S subunit component that binds a specific region of rRNA, making it relevant to studies of large subunit composition and protein synthesis.

p53 and MDM2 signalling

RPL23A may promote p53/TP53 degradation, possibly by stimulating MDM2-mediated polyubiquitination, linking ribosomal proteins to p53 regulation.

Interferon growth inhibition

The protein may be a target molecule involved in mediating growth inhibition by interferon, which makes it a candidate for interferon response studies.

snoRNA host gene expression

The gene is co-transcribed with the U42A, U42B, U101A and U101B small nucleolar RNA genes, offering a model for host gene and snoRNA co-expression.

Background

RPL23A frequently asked questions

What does RPL23A do?

RPL23A is a component of the large (60S) ribosomal subunit and takes part in cellular protein synthesis. It binds a specific region of the 26S rRNA. It may also promote p53/TP53 degradation, possibly by stimulating MDM2-mediated TP53 polyubiquitination.

What other names does RPL23A go by?

RPL23A is the HGNC symbol for ribosomal protein L23a. Aliases include L23A and uL23, and UniProt names the protein large ribosomal subunit protein uL23. It belongs to the universal uL23 family, described by NCBI as the L23P family of ribosomal proteins.

Is RPL23A conserved, and does its gene host other genes?

Mouse and rat both have an orthologue named Rpl23a, and the protein belongs to a universal ribosomal protein family. The human gene is co-transcribed with the U42A, U42B, U101A and U101B snoRNA genes, and has multiple processed pseudogenes. Check the datasheet of any product for its validated reactivity.

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Related targets

Other large subunit ribosomal proteins and ribosomal stalk proteins with products at Assay Genie.

Gene and protein annotations from HGNC, NCBI Gene and UniProt P62750; product specifications from Assay Genie datasheets.

RPL23A Product listing