P80377: Small ribosomal subunit protein uS13 (rpsM)

Small ribosomal subunit protein uS13 (rpsM) is a 126-residue protein from Thermus thermophilus (strain ATCC 27634 / DSM 579 / HB8). This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P80377.

Gene

rpsM

Organism

Thermus thermophilus (strain ATCC 27634 / DSM 579 / HB8)

Length

126 residues

Mean pLDDT

90.4

Model

AF-P80377-F1 v6

Model created

1 Aug 2025

PDB structures

412

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Model confidence (pLDDT)

The mean pLDDT of this model is 90.4 (very high overall). pLDDT is AlphaFold's per-residue confidence score from 0 to 100. In MolViewer, choose the B-factor color scheme to color the model by pLDDT, because AlphaFold stores it in the B-factor column.

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Function

Located at the top of the head of the 30S subunit, it contacts several helices of the 16S rRNA. In the 70S ribosome structure it contacts the 23S rRNA (bridge B1a) and protein L5 of the 50S subunit (bridge B1b), connecting the top of the two subunits; these bridges are in contact with the A site and P site tRNAs respectively and are implicated in movement during ribosome translocation. Separately contacts the tRNAs in the A and P sites

Subunit structure

Part of the 30S ribosomal subunit. Forms a loose heterodimer with protein S19. Forms two bridges to the 50S subunit in the 70S ribosome, contacting protein L5 and the 23S rRNA; these bridges are straddled by the 5S rRNA

Experimental structures in the PDB

Compare the prediction with experimentally determined structures of the same protein:

Showing 20 of 412 experimental structures (best resolution first).

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