P0C0Y7: Reaction center protein H chain (puhA)

Reaction center protein H chain (puhA) is a 260-residue protein from Cereibacter sphaeroides. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P0C0Y7.

Gene: puhA
Organism: Cereibacter sphaeroides
Length: 260 residues
Mean pLDDT: 93.7
Model: AF-P0C0Y7-F1 v6
Model created: 1 Aug 2025
PDB structures: 125

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Model confidence (pLDDT)

The mean pLDDT of this model is 93.7 (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	84%
70 to 90	Confident: backbone generally right	14%
50 to 70	Low: treat with caution	2%
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
7P0Q	X-ray	1.73 Å	H=9-249
1RZH	X-ray	1.8 Å	H=1-260
2J8C	X-ray	1.87 Å	H=1-260
3I4D	X-ray	2.01 Å	H=1-260
2UWU	X-ray	2.04 Å	H=1-260
2UWW	X-ray	2.05 Å	H=1-260
2J8D	X-ray	2.07 Å	H=1-260
1QOV	X-ray	2.1 Å	H=1-260
1RY5	X-ray	2.1 Å	H=1-260
6Z02	X-ray	2.1 Å	H=10-250
6Z1J	X-ray	2.1 Å	H=10-250
6Z27	X-ray	2.1 Å	H=1-250
7OD5	X-ray	2.1 Å	H=9-249
2UWV	X-ray	2.13 Å	H=1-260
7Z8D	X-ray	2.14 Å	H=9-250
1AIJ	X-ray	2.2 Å	H/T=1-260
2GNU	X-ray	2.2 Å	H=11-245
2JIY	X-ray	2.2 Å	H=1-260
2UX5	X-ray	2.21 Å	H=1-260
7P17	X-ray	2.22 Å	H=9-250

Showing 20 of 125 experimental structures (best resolution first).

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