RPS27A Gene (Protein Coding)

• Ubiquitin, a highly conserved protein that has a major role in targeting cellular proteins for degradation by the 26S proteosome, is synthesized as a precursor protein consisting of either polyubiquitin chains or a single ubiquitin fused to an unrelated protein. This gene encodes a fusion protein consisting of ubiquitin at the N terminus and ribosomal protein S27a at the C terminus. When expressed in yeast, the protein is post-translationally processed, generating free ubiquitin monomer and ribosomal protein S27a. Ribosomal protein S27a is a component of the 40S subunit of the ribosome and belongs to the S27AE family of ribosomal proteins. It contains C4-type zinc finger domains and is located in the cytoplasm. Pseudogenes derived from this gene are present in the genome. As with ribosomal protein S27a, ribosomal protein L40 is also synthesized as a fusion protein with ubiquitin; similarly, ribosomal protein S30 is synthesized as a fusion protein with the ubiquitin-like protein fubi. Multiple alternatively spliced transcript variants that encode the same proteins have been identified.[provided by RefSeq, Sep 2008]

RPS27A (Ribosomal Protein S27a) is a Protein Coding gene. Diseases associated with RPS27A include Machado-Joseph Disease and Spherocytosis, Type 5. Among its related pathways are NOTCH2 Activation and Transmission of Signal to the Nucleus and Downstream signaling events of B Cell Receptor (BCR). Gene Ontology (GO) annotations related to this gene include structural constituent of ribosome. An important paralog of this gene is RPS27AP5.

• [Ubiquitin]: Exists either covalently attached to another protein, or free (unanchored). When covalently bound, it is conjugated to target proteins via an isopeptide bond either as a monomer (monoubiquitin), a polymer linked via different Lys residues of the ubiquitin (polyubiquitin chains) or a linear polymer linked via the initiator Met of the ubiquitin (linear polyubiquitin chains). Polyubiquitin chains, when attached to a target protein, have different functions depending on the Lys residue of the ubiquitin that is linked: Lys-6-linked may be involved in DNA repair; Lys-11-linked is involved in ERAD (endoplasmic reticulum-associated degradation) and in cell-cycle regulation; Lys-29-linked is involved in lysosomal degradation; Lys-33-linked is involved in kinase modification; Lys-48-linked is involved in protein degradation via the proteasome; Lys-63-linked is involved in endocytosis, DNA-damage responses as well as in signaling processes leading to activation of the transcription factor NF-kappa-B. Linear polymer chains formed via attachment by the initiator Met lead to cell signaling. Ubiquitin is usually conjugated to Lys residues of target proteins, however, in rare cases, conjugation to Cys or Ser residues has been observed. When polyubiquitin is free (unanchored-polyubiquitin), it also has distinct roles, such as in activation of protein kinases, and in signaling.

  • RS27A_HUMAN,P62979
• [40S ribosomal protein S27a]: Component of the 40S subunit of the ribosome.

  • RS27A_HUMAN,P62979

• HGNC (10417)
• NCBI Entrez Gene (6233)
• Ensembl (ENSG00000143947)
• OMIM® (191343)
• UniProtKB/Swiss-Prot (P62979)
• Open Targets Platform(ENSG00000143947)
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• Search for RPS27A at DataMed
• Search for RPS27A at HumanCyc

No data available for CIViC Summary , Tocris Summary , PharmGKB "VIP" Summary , Rfam classification and piRNA Summary for RPS27A Gene

No data available for DME Specific Peptides for RPS27A Gene

No data available for Enzyme Numbers (IUBMB) , Human Phenotype Ontology , Animal Models , Transcription Factor Targets and HOMER Transcription for RPS27A Gene

Subcellular locations from UniProtKB/Swiss-Prot for RPS27A Gene

No data available for SIGNOR curated interactions for RPS27A Gene