| 1310203 | Mrpl21 | mitochondrial ribosomal protein L21 | FOUND IN mitochondrial large ribosomal subunit (ortholog); mitochondrion (ortholog); INTERACTS WITH 2,3,7,8-tetrachlorodibenzodioxine; bisphenol A; C60 fullerene | 1 | 209958693 | 209987393 | Rat | 54 | symbol , PhenoGen | gene, protein-coding, PROVISIONAL [RefSeq] |
| 1320967 | MRPL21 | mitochondrial ribosomal protein L21 | Mammalian mitochondrial ribosomal proteins are encoded by nuclear genes and help in protein synthesis within the mitochondrion. Mitochondrial ribosomes (mitoribosomes) consist of a small 28S subunit and a large 39S subunit. They have an estimated 75% protein to rRNA composition compared to prokaryot ic ribosomes, where this ratio is reversed. Another difference between mammalian mitoribosomes and prokaryotic ribosomes is that the latter contain a 5S rRNA. Among different species, the proteins comprising the mitoribosome differ greatly in sequence, and sometimes in biochemical properties, which prevents easy recognition by sequence homology. This gene encodes a 39S subunit protein. Multiple transcript variants encoding different isoforms were identified through sequence analysis although some may be subject to nonsense-mediated decay (NMD). [provided by RefSeq, Jul 2008] | 11 | 68891278 | 68903832 | Human | 65 | symbol , COSMIC , Human Proteome Map | gene, protein-coding, REVIEWED [RefSeq] |
| 1553419 | Mrpl21 | mitochondrial ribosomal protein L21 | Predicted to be a structural constituent of ribosome. Predicted to be involved in mitochondrial translation. Located in mitochondrion. Is expressed in several structures, including brain; early conceptus; gonad; heart; and liver. Orthologous to human MRPL21 (mit ochondrial ribosomal protein L21). [provided by Alliance of Genome Resources, Jul 2025] | 19 | 3332997 | 3342837 | Mouse | 67 | symbol , PhenoGen , description | gene, protein-coding, VALIDATED [RefSeq] |
| 9062696 | Mrpl21 | mitochondrial ribosomal protein L21 | FOUND IN mitochondrial large ribosomal subunit (ortholog); mitochondrion (ortholog) | NW_004955422 | 17047782 | 17060963 | Chinchilla | 3 | symbol | gene, protein-coding, MODEL [RefSeq] |
| 11864740 | MRPL21 | mitochondrial ribosomal protein L21 | ENCODES a protein that exhibits RNA binding (inferred); structural constituent of ribosome (inferred); INVOLVED IN translation (inferred); FOUND IN cytoplasm (inferred); mitochondrial large ribosomal subunit (inferred); mitochondrion (inferred) | 12 | 65651607 | 65652723 | Bonobo | 11 | symbol | gene, protein-coding, MODEL [RefSeq] |
| 12091060 | MRPL21 | mitochondrial ribosomal protein L21 | FOUND IN mitochondrion (ortholog) | 18 | 49090521 | 49104052 | Dog | 6 | symbol | gene, protein-coding, MODEL [RefSeq] |
| 12635234 | Mrpl21 | mitochondrial ribosomal protein L21 | ENCODES a protein that exhibits RNA binding (inferred); structural constituent of ribosome (inferred); INVOLVED IN translation (inferred); FOUND IN cytoplasm (inferred); mitochondrial large ribosomal subunit (inferred); mitochondrion (inferred) | NW_004936599 | 1440207 | 1448424 | Squirrel | 11 | symbol | gene, protein-coding, MODEL [RefSeq] |
| 14380781 | mRpL21 | | | | | | Fly | | symbol | gene, null |
| 626133071 | Mrpl21 | mitochondrial ribosomal protein L21 | FOUND IN mitochondrial large ribosomal subunit (ortholog); mitochondrion (ortholog) | | | | Black Rat | 3 | symbol | gene, protein-coding, MODEL [RefSeq] |
| 14231653 | MRPL21 | mitochondrial ribosomal protein L21 | | | | | Pig | | symbol | gene, protein-coding |
| 18681435 | MRPL21 | mitochondrial ribosomal protein L21 | ENCODES a protein that exhibits structural constituent of ribosome (inferred); FOUND IN cytoplasm (inferred); mitochondrial large ribosomal subunit (inferred); mitochondrion (inferred) | | | | Green Monkey | 6 | symbol | gene, protein-coding, MODEL [RefSeq] |
| 152178012 | MRPL21 | mitochondrial ribosomal protein L21 | | | | | Naked Mole-Rat | | symbol | gene, protein-coding |
| 155254408 | mrpl21 | | | | | | Tropical Clawed Frog | | symbol | gene, null |
| 155256162 | mrpl21.L | | | | | | African Clawed Frog | | symbol | gene, null |
| 18933030 | LOC101714401 | uncharacterized LOC101714401 | | | | | Naked Mole-Rat | | old_gene_symbol | gene, ncrna, MODEL [RefSeq] |
| 16561110 | AC007458.1 | mitochondrial ribosomal protein L21 (MRPL21) pseudogene | | | | | Human | | name | gene, processed_pseudogene |