P0A800: DNA-directed RNA polymerase subunit omega (rpoZ)

DNA-directed RNA polymerase subunit omega (rpoZ) is a 91-residue protein from Escherichia coli (strain K12). This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P0A800.

Gene: rpoZ
Organism: Escherichia coli (strain K12)
Length: 91 residues
Mean pLDDT: 91.9
Model: AF-P0A800-F1 v6
Model created: 1 Aug 2025
PDB structures: 360

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Model confidence (pLDDT)

The mean pLDDT of this model is 91.9 (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 band	Meaning	Share of residues
Above 90	Very high: backbone and side chains are usually accurate	82%
70 to 90	Confident: backbone generally right	14%
50 to 70	Low: treat with caution	3%
Below 50	Very low: often disordered regions	0%

What pLDDT means and how to read it

Function

Promotes RNA polymerase (RNAP) assembly. Latches the N- and C-terminal regions of the beta' subunit thereby facilitating its interaction with the beta and alpha subunits

Subunit structure

The RNAP catalytic core consists of 2 alpha, 1 beta, 1 beta' and 1 omega subunit. When a sigma factor is associated with the core the holoenzyme is formed, which can initiate transcription. The rRNA transcription and antitermination complex (rrnTAC) consists of RNAP, NusA, NusB, NusE (rpsJ), NusG, SubB, ribosomal protein S4, DNA and precursor rRNA; S4 is more flexible than other subunits…

Experimental structures in the PDB

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

PDB ID	Method	Resolution	Chains and residues
8FVW	EM	2.1 Å	H=1-91
8FVR	EM	2.42 Å	H=1-91
6XL5	EM	2.5 Å	E=1-91
8F1J	EM	2.6 Å	K=1-91
8PIB	EM	2.6 Å	K=1-91
9MSF	EM	2.6 Å	K=1-91
9YMV	EM	2.6 Å	K=1-91
8SY7	EM	2.65 Å	K=1-91
6XLJ	EM	2.7 Å	E=1-91
6XLL	EM	2.7 Å	E=1-91
8SY5	EM	2.7 Å	K=1-91
9GDA	EM	2.7 Å	E=1-91
9MSE	EM	2.7 Å	K=1-91
9MSG	EM	2.7 Å	K=1-91
9YMU	EM	2.7 Å	K=1-91
9YMW	EM	2.7 Å	K=1-91
9YMX	EM	2.7 Å	K=1-91
8JO2	EM	2.74 Å	E=1-91
8FTD	EM	2.76 Å	K=1-91
10MC	EM	2.8 Å	K=1-91

Showing 20 of 360 experimental structures (best resolution first).

More AlphaFold highlights

About this viewer

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