Q9NYJ8: TGF-beta-activated kinase 1 and MAP3K7-binding protein 2 (TAB2)

TGF-beta-activated kinase 1 and MAP3K7-binding protein 2 (TAB2) is a 693-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q9NYJ8.

Gene
TAB2
Organism
Homo sapiens
Length
693 residues
Mean pLDDT
52.4
Model
AF-Q9NYJ8-F1 v6
Model created
1 Aug 2025
PDB structures
6

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Model confidence (pLDDT)

The mean pLDDT of this model is 52.4 (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 accurate14%
70 to 90Confident: backbone generally right10%
50 to 70Low: treat with caution8%
Below 50Very low: often disordered regions69%

What pLDDT means and how to read it

Function

Adapter required to activate the JNK and NF-kappa-B signaling pathways through the specific recognition of 'Lys-63'-linked polyubiquitin chains by its RanBP2-type zinc finger (NZF) (PubMed:10882101, PubMed:11460167, PubMed:15327770, PubMed:22158122, PubMed:27746020, PubMed:33184450, PubMed:36681779). Acts as an adapter linking MAP3K7/TAK1 and TRAF6 to 'Lys-63'-linked polyubiquitin chains (PubMed:10882101, PubMed:11460167, PubMed:15327770, PubMed:22158122, PubMed:27746020). The RanBP2-type zinc finger (NZF) specifically recognizes 'Lys-63'-linked polyubiquitin chains unanchored or anchored to the substrate proteins such as RIPK1/RIP1 and RIPK2: this acts as a scaffold to organize a large…

Subunit structure

Interacts with MAP3K7 and TRAF6 (PubMed:10882101). Identified in the TRIKA2 complex composed of MAP3K7, TAB1 and TAB2 (PubMed:11460167). Binds 'Lys-63'-linked polyubiquitin chains (PubMed:19675569, PubMed:19935683). Interacts with NCOR1 and HDAC3 to form a ternary complex (By similarity). Interacts (via C-terminal) with NUMBL (via PTB domain) (PubMed:18299187). Interacts (via the C-terminus)…

Subcellular location

Membrane, Endosome membrane, Lysosome membrane, Cytoplasm, cytosol

Disease associations

Experimental structures in the PDB

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

PDB IDMethodResolutionChains and residues
2WWZX-ray1.4 ÅC=662-693
9AVTX-ray1.5 ÅC=664-693
9AVWX-ray1.75 ÅC=663-693
2WX0X-ray2.4 ÅC/G=663-693
2WX1X-ray3.0 ÅC=663-693
2DAENMRA=7-68

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About this viewer

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