Q9BSI4: TERF1-interacting nuclear factor 2 (TINF2)

TERF1-interacting nuclear factor 2 (TINF2) is a 451-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q9BSI4.

Gene
TINF2
Organism
Homo sapiens
Length
451 residues
Mean pLDDT
60.6
Model
AF-Q9BSI4-F1 v6
Model created
1 Aug 2025
PDB structures
3

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Model confidence (pLDDT)

The mean pLDDT of this model is 60.6 (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 accurate27%
70 to 90Confident: backbone generally right14%
50 to 70Low: treat with caution6%
Below 50Very low: often disordered regions52%

What pLDDT means and how to read it

Function

Component of the shelterin complex (telosome) that is involved in the regulation of telomere length and protection. Shelterin associates with arrays of double-stranded TTAGGG repeats added by telomerase and protects chromosome ends; without its protective activity, telomeres are no longer hidden from the DNA damage surveillance and chromosome ends are inappropriately processed by DNA repair pathways. Plays a role in shelterin complex assembly. Isoform 1 may have additional role in tethering telomeres to the nuclear matrix

Subunit structure

Monomer. Found in a complex with POT1; TERF1 and TNKS1. Component of the shelterin complex (telosome) composed of TERF1, TERF2, TINF2, TERF2IP ACD and POT1. Interacts with TERF1, TERF2 and ACD

Subcellular location

Nucleus, Chromosome, telomere, Nucleus matrix

Disease associations

Experimental structures in the PDB

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

PDB IDMethodResolutionChains and residues
3BQOX-ray2.0 ÅB=257-276
3BU8X-ray2.15 ÅC/D=258-275
5XYFX-ray2.2 ÅA=2-202

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