Q9CZX8: Small ribosomal subunit protein eS19 (Rps19)

Small ribosomal subunit protein eS19 (Rps19) is a 145-residue protein from Mus musculus. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q9CZX8.

Gene
Rps19
Organism
Mus musculus
Length
145 residues
Mean pLDDT
93.5
Model
AF-Q9CZX8-F1 v6
Model created
1 Aug 2025
PDB structures
9

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Model confidence (pLDDT)

The mean pLDDT of this model is 93.5 (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 accurate92%
70 to 90Confident: backbone generally right6%
50 to 70Low: treat with caution1%
Below 50Very low: often disordered regions1%

What pLDDT means and how to read it

Function

Component of the small ribosomal subunit (PubMed:36517592). The ribosome is a large ribonucleoprotein complex responsible for the synthesis of proteins in the cell (PubMed:36517592). Required for pre-rRNA processing and maturation of 40S ribosomal subunits (By similarity). Required for pre-rRNA processing and maturation of 40S ribosomal subunits. Part of the small subunit (SSU) processome, first precursor of the small eukaryotic ribosomal subunit. During the assembly of the SSU processome in the nucleolus, many ribosome biogenesis factors, an RNA chaperone and ribosomal proteins associate with the nascent pre-rRNA and work in concert to generate RNA folding, modifications, rearrangements…

Subunit structure

Component of the small ribosomal subunit (PubMed:36517592). Part of the small subunit (SSU) processome, composed of more than 70 proteins and the RNA chaperone small nucleolar RNA (snoRNA) U3 (By similarity). Interacts with RPS19BP1 (PubMed:16289379)

Subcellular location

Cytoplasm, Nucleus, nucleolus

Experimental structures in the PDB

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

PDB IDMethodResolutionChains and residues
9H4NEM2.46 ÅB3=4-144
9QOHEM2.78 ÅB3=1-145
7CPUEM2.82 ÅST=1-145
7CPVEM3.03 ÅST=1-145
9QQLEM3.09 ÅB3=1-145
7LS2EM3.1 ÅB3=1-145
9QWTEM3.1 ÅB3=1-145
7LS1EM3.3 ÅB3=1-145
9QSAEM3.4 ÅB3=1-145

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