P06008: Reaction center protein H chain (puhA)

Reaction center protein H chain (puhA) is a 258-residue protein from Blastochloris viridis. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P06008.

Gene: puhA
Organism: Blastochloris viridis
Length: 258 residues
Mean pLDDT: 91.6
Model: AF-P06008-F1 v6
Model created: 1 Aug 2025
PDB structures: 38

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Model confidence (pLDDT)

The mean pLDDT of this model is 91.6 (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	74%
70 to 90	Confident: backbone generally right	19%
50 to 70	Low: treat with caution	7%
Below 50	Very low: often disordered regions	0%

What pLDDT means and how to read it

Function

The reaction center is a membrane-bound complex that mediates the initial photochemical event in the electron transfer process of photosynthesis

Subunit structure

Heterotrimer composed of subunits L, M, and H

Subcellular location

Cellular chromatophore membrane

Experimental structures in the PDB

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

PDB ID	Method	Resolution	Chains and residues
2WJN	X-ray	1.86 Å	H=1-258
3T6E	X-ray	1.92 Å	H=1-258
2WJM	X-ray	1.95 Å	H=1-258
3T6D	X-ray	1.95 Å	H=1-258
2I5N	X-ray	1.96 Å	H=1-258
1DXR	X-ray	2.0 Å	H=1-258
1VRN	X-ray	2.2 Å	H=1-258
7Q7Q	X-ray	2.25 Å	HHH=1-258
1PRC	X-ray	2.3 Å	H=1-258
6PRC	X-ray	2.3 Å	H=1-258
5PRC	X-ray	2.35 Å	H=1-258
2JBL	X-ray	2.4 Å	H=1-258
3PRC	X-ray	2.4 Å	H=1-258
5NJ4	X-ray	2.4 Å	H=1-258
7Q7P	X-ray	2.4 Å	HHH=1-258
2PRC	X-ray	2.45 Å	H=1-258
3G7F	X-ray	2.5 Å	H=1-258
7PRC	X-ray	2.65 Å	H=1-258
5O4C	X-ray	2.8 Å	H=1-258
6ZHW	X-ray	2.8 Å	H=1-258

Showing 20 of 38 experimental structures (best resolution first).

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