P54198: Protein HIRA (HIRA)

Protein HIRA (HIRA) is a 1017-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P54198.

Gene
HIRA
Organism
Homo sapiens
Length
1017 residues
Mean pLDDT
74.4
Model
AF-P54198-F1 v6
Model created
1 Aug 2025
PDB structures
2

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Model confidence (pLDDT)

The mean pLDDT of this model is 74.4 (confident 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 accurate51%
70 to 90Confident: backbone generally right14%
50 to 70Low: treat with caution8%
Below 50Very low: often disordered regions27%

What pLDDT means and how to read it

Function

Cooperates with ASF1A to promote replication-independent chromatin assembly. Required for the periodic repression of histone gene transcription during the cell cycle. Required for the formation of senescence-associated heterochromatin foci (SAHF) and efficient senescence-associated cell cycle exit

Subunit structure

Interacts with histone H3-3B, PAX3 and PAX7 (By similarity). Interacts with histone H3.Y (PubMed:28334823). Interacts with CCNA1, HIRIP3, NFU1/HIRIP5 and histone H2B. Part of a complex which includes ASF1A, CABIN1, histone H3.3, histone H4 and UBN1 (PubMed:11238922, PubMed:14680630, PubMed:14718166, PubMed:15621527, PubMed:16980972, PubMed:19029251, PubMed:9710638)

Subcellular location

Nucleus, Nucleus, PML body

Experimental structures in the PDB

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

PDB IDMethodResolutionChains and residues
5YJEX-ray2.45 ÅA/B/C=644-1017
2I32X-ray2.7 ÅE/F=425-472

More AlphaFold highlights

About this viewer

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