Q504T8: Midnolin (MIDN)

Midnolin (MIDN) is a 468-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q504T8.

Gene
MIDN
Organism
Homo sapiens
Length
468 residues
Mean pLDDT
64.9
Model
AF-Q504T8-F1 v6
Model created
1 Aug 2025
PDB structures
23

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Model confidence (pLDDT)

The mean pLDDT of this model is 64.9 (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 accurate28%
70 to 90Confident: backbone generally right16%
50 to 70Low: treat with caution13%
Below 50Very low: often disordered regions43%

What pLDDT means and how to read it

Function

Facilitates the ubiquitin-independent proteasomal degradation of stimulus-induced transcription factors such as FOSB, EGR1, NR4A1, and IRF4 to the proteasome for degradation (PubMed:37616343). Promotes also the degradation of other substrates such as CBX4 (By similarity). Plays a role in inhibiting the activity of glucokinase GCK and both glucose-induced and basal insulin secretion

Subunit structure

Interacts with GCK; the interaction occurs preferentially at low glucose levels (PubMed:37616343). Interacts with the proteasome (PubMed:37616343)

Subcellular location

Nucleus, nucleolus, Nucleus, Cytoplasm, cytosol

Experimental structures in the PDB

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

PDB IDMethodResolutionChains and residues
9VEHX-ray2.0 ÅA=113-157, B=265-334
9VE3X-ray2.1 ÅA=111-157, B=265-334
9VE7X-ray2.15 ÅA=112-157, B=265-334
8VQPX-ray2.52 ÅA=94-334
9VE4X-ray2.55 ÅA=111-157, B=265-334
9MBPEM2.75 Åf=1-468
9NKGEM2.8 Åz=1-468
9VE6X-ray2.8 ÅA=111-157, B=265-334
9MBOEM2.83 ÅA=1-468
9VE8X-ray2.85 ÅA=112-157, B=265-334
9BV3EM2.9 Åy=2-468
9NKIEM2.94 Åz=1-468
21IKX-ray2.99 ÅA=111-157, B=265-334
9BV1EM3.1 Åy=1-468
9VE5X-ray3.2 ÅA=111-157, B=265-334
21IEX-ray3.24 ÅA=113-157, B=265-334
21IPX-ray3.3 ÅA=111-157, B=265-334
9M2WEM3.31 Åu=1-468
9BV2EM3.4 Åy=1-468
9UG9EM3.5 Åu=1-468

Showing 20 of 23 experimental structures (best resolution first).

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About this viewer

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