FB2026_03 , released September 17, 2026
Complex: MITOCHONDRIAL SMALL RIBOSOMAL SUBUNIT
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General Information
Name
MITOCHONDRIAL SMALL RIBOSOMAL SUBUNIT
Species
D. melanogaster
Symbol
MRPS
FlyBase ID
FBgg0000154
Date last reviewed
2026-07-01
Number of members
31
Description
Description
Mitochondrial ribosomes are found in the mitochondrial matrix and translate genes involved in oxidative phosphorylation encoded by the mitochondrial genome. Ribosomes are formed by two ribonucleoprotein subunits, large and small. The principle function of the small subunit is to bind mRNA. (Adapted from FBrf0205398).
Notes on Group

The MITOCHONDRIAL SMALL RIBOSOMAL SUBUNIT gene group includes mitochondrial rRNA.

Based on data from the human orthologs (PMID:25278503), mRpS18A and mRpS30 have been moved from MITOCHONDRIAL SMALL RIBOSOMAL SUBUNIT to the MITOCHONDRIAL LARGE RIBOSOMAL SUBUNIT gene group (FBrf0260754).

Source Material
The MITOCHONDRIAL SMALL RIBOSOMAL SUBUNIT Gene Group has been compiled using the following publication(s): Attrill and Marygold, 2024.10.18, Marygold et al., 2007, Ballard et al., 1992, and Nakao et al., .
Key Gene Ontology (GO) terms
Molecular Function
structural constituent of ribosome
Biological Process
mitochondrial translation
Cellular Component
mitochondrial small ribosomal subunit
mitochondrial matrix
Related Gene Groups
Parent group(s)
MITOCHONDRIAL RIBOSOMAL SUBUNITS
Members (31)
For all members:
GO ribbon stack
 molecular functionbiological processcellular component
External Data
Synonyms and Secondary IDs
Synonym(s)
MRPS
Small mitochondrial ribosomal subunit
Small mitoribosome
Small mitochondrial ribosome
MITOCHONDRIAL SMALL RIBOSOMAL PROTEINS
MITOCHONDRIAL SMALL RIBOSOMAL COMPONENTS
MITOCHONDRIAL SMALL RIBOSOMAL SUBUNIT
Secondary FlyBase ID(s)
References (5)