Q9RXJ0: Large ribosomal subunit protein uL5 (rplE)

Large ribosomal subunit protein uL5 (rplE) is a 180-residue protein from Deinococcus radiodurans (strain ATCC 13939 / DSM 20539 / JCM 16871 / CCUG 27074 / LMG 4051 / NBRC 15346 / NCIMB 9279 / VKM B-1422 / R1). This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q9RXJ0.

Gene
rplE
Organism
Deinococcus radiodurans (strain ATCC 13939 / DSM 20539 / JCM 16871 / CCUG 27074 / LMG 4051 / NBRC 15346 / NCIMB 9279 / VKM B-1422 / R1)
Length
180 residues
Mean pLDDT
91.1
Model
AF-Q9RXJ0-F1 v6
Model created
1 Aug 2025
PDB structures
27

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Model confidence (pLDDT)

The mean pLDDT of this model is 91.1 (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.

pLDDT bandMeaningShare of residues
Above 90Very high: backbone and side chains are usually accurate77%
70 to 90Confident: backbone generally right21%
50 to 70Low: treat with caution2%
Below 50Very low: often disordered regions1%

What pLDDT means and how to read it

Function

This is one of the proteins that bind and probably mediate the attachment of the 5S RNA into the large ribosomal subunit, where it forms part of the central protuberance. In the 70S ribosome it contacts protein S13 of the 30S subunit (bridge B1b), connecting the 2 subunits; this bridge is implicated in subunit movement (By similarity). Contacts the P site tRNA; the 5S rRNA and some of its associated proteins might help stabilize positioning of ribosome-bound tRNAs

Subunit structure

Forms a bridge to the 30S subunit in the 70S ribosome (By similarity). Part of the 50S ribosomal subunit; part of the 5S rRNA/L5/L18/L25 (CTC) subcomplex. Is known to contact the 5S rRNA, 23S rRNA and the P site tRNA

Experimental structures in the PDB

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

PDB IDMethodResolutionChains and residues
5DM6X-ray2.9 ÅD=3-179
2ZJRX-ray2.91 ÅD=1-180
5DM7X-ray3.0 ÅD=3-179
1NKWX-ray3.1 ÅD=1-180
4IO9X-ray3.2 ÅD=1-180
4IOAX-ray3.2 ÅD=1-180
7A0SX-ray3.22 ÅD=3-179
3PIOX-ray3.25 ÅD=1-180
1NWYX-ray3.3 ÅD=1-180
2ZJQX-ray3.3 ÅD=1-180
3CF5X-ray3.3 ÅD=1-180
7A0RX-ray3.3 ÅD=3-179
7A18X-ray3.4 ÅD=2-177
1SM1X-ray3.42 ÅD=1-180
5JVGX-ray3.43 ÅD=1-180
3PIPX-ray3.45 ÅD=1-180
1NWXX-ray3.5 ÅD=1-180
1XBPX-ray3.5 ÅD=1-180
3DLLX-ray3.5 ÅD=1-180
4WFNX-ray3.54 ÅD=1-180

Showing 20 of 27 experimental structures (best resolution first).

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