哺乳动物线粒体核糖体蛋白由核基因编码，有助于线粒体内的蛋白质合成。线粒体核糖体 (线粒体核糖体) 由一个小的 28S 亚基和一个大的 39S 亚基组成。与原核核糖体相比，它们估计有 75% 的蛋白质与 rRNA 组成，而原核核糖体的比例是相反的。哺乳动物 线粒体核糖体 和原核核糖体之间的另一个区别是后者包含 5S rRNA。在不同的物种中，构成核糖体的蛋白质在序列上有很大差异，有时在生化特性上也有很大差异，这使得序列同源性难以识别。该基因编码形成同型二聚体的 39S 亚基蛋白。在原核核糖体中，两个 L7/L12 二聚体和一个 L10 蛋白形成 L8 蛋白复合物。[RefSeq 提供，2008 年 7 月]

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 prokaryotic 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 which forms homodimers. In prokaryotic ribosomes, two L7/L12 dimers and one L10 protein form the L8 protein complex. [provided by RefSeq, Jul 2008]