UniProt functional annotation for Q8IXM3

UniProt code: Q8IXM3.

Organism: Homo sapiens (Human).
Taxonomy: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo.
 
Function: Component of the mitochondrial ribosome large subunit (PubMed:28892042, PubMed:25838379, PubMed:25278503). Also involved in apoptosis and cell cycle (PubMed:16024796, PubMed:16256947). Enhances p53/TP53 stability, thereby contributing to p53/TP53-induced apoptosis in response to growth-inhibitory condition. Enhances p53/TP53 translocation to the mitochondria. Has the ability to arrest the cell cycle at the G1 phase, possibly by stabilizing the CDKN1A and CDKN1B (p27Kip1) proteins (PubMed:16024796). {ECO:0000269|PubMed:16024796, ECO:0000269|PubMed:16256947, ECO:0000269|PubMed:25278503, ECO:0000269|PubMed:25838379, ECO:0000269|PubMed:28892042}.
 
Subunit: Component of the mitochondrial large ribosomal subunit (mt- LSU). Mature mammalian 55S mitochondrial ribosomes consist of a small (28S) and a large (39S) subunit. The 28S small subunit contains a 12S ribosomal RNA (12S mt-rRNA) and 30 different proteins. The 39S large subunit contains a 16S rRNA (16S mt-rRNA), a copy of mitochondrial valine transfer RNA (mt-tRNA(Val)), which plays an integral structural role, and 52 different proteins (PubMed:11551941, PubMed:25278503, PubMed:25838379). Interacts with BCL2 (PubMed:15547950). {ECO:0000269|PubMed:15547950, ECO:0000269|PubMed:25278503, ECO:0000269|PubMed:25838379, ECO:0000305|PubMed:11551941}.
Subcellular location: Mitochondrion {ECO:0000269|PubMed:16024796, ECO:0000269|PubMed:25278503, ECO:0000269|PubMed:25838379, ECO:0000269|PubMed:28892042}.
Tissue specificity: Present in kidney, liver, thymus and testis, and at lower level in brain and spleen (at protein level). {ECO:0000269|PubMed:15547950}.
Similarity: Belongs to the mitochondrion-specific ribosomal protein mL41 family. {ECO:0000305}.

Annotations taken from UniProtKB at the EBI.