Q53H80: Akirin-2 (AKIRIN2)

Akirin-2 (AKIRIN2) is a 203-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q53H80.

Gene
AKIRIN2
Organism
Homo sapiens
Length
203 residues
Mean pLDDT
65.6
Model
AF-Q53H80-F1 v6
Model created
1 Aug 2025
PDB structures
5

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Model confidence (pLDDT)

The mean pLDDT of this model is 65.6 (low 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 accurate30%
70 to 90Confident: backbone generally right9%
50 to 70Low: treat with caution24%
Below 50Very low: often disordered regions38%

What pLDDT means and how to read it

Function

Molecular adapter that acts as a bridge between a variety of multiprotein complexes, and which is involved in embryonic development, immunity, myogenesis and brain development (PubMed:34711951). Plays a key role in nuclear protein degradation by promoting import of proteasomes into the nucleus: directly binds to fully assembled 20S proteasomes at one end and to nuclear import receptor IPO9 at the other end, bridging them together and mediating the import of pre-assembled proteasome complexes through the nuclear pore (PubMed:34711951). Involved in innate immunity by regulating the production of interleukin-6 (IL6) downstream of Toll-like receptor (TLR): acts by bridging the NF-kappa-B…

Subunit structure

Homodimer (PubMed:34711951). Interacts with IPO9; the interaction is direct (PubMed:34711951). Associates (via SYVS motif) with 20S and 26S proteasomes (PubMed:34711951). Interacts with SMARCD1; promoting SWI/SNF complex recruitment (By similarity). Interacts with NFKBIZ (By similarity). Interacts with YWHAB (By similarity)

Subcellular location

Nucleus, Cytoplasm, Membrane

Experimental structures in the PDB

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

PDB IDMethodResolutionChains and residues
7NHTEM2.8 Åc/d=1-203
9QONEM3.2 ÅB/C/D=1-203
9QOOEM3.3 ÅB/C/D/I=1-203
9QOPEM3.7 ÅB/C=1-203
9QNOEM4.2 ÅD/E=1-203

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