Q9NV88: Integrator complex subunit 9 (INTS9)

Integrator complex subunit 9 (INTS9) is a 658-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q9NV88.

Gene
INTS9
Organism
Homo sapiens
Length
658 residues
Mean pLDDT
90.9
Model
AF-Q9NV88-F1 v6
Model created
1 Aug 2025
PDB structures
15

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Model confidence (pLDDT)

The mean pLDDT of this model is 90.9 (very high 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 accurate76%
70 to 90Confident: backbone generally right18%
50 to 70Low: treat with caution2%
Below 50Very low: often disordered regions3%

What pLDDT means and how to read it

Function

Component of the integrator complex, a multiprotein complex that terminates RNA polymerase II (Pol II) transcription in the promoter-proximal region of genes (PubMed:25201415, PubMed:33243860, PubMed:33548203, PubMed:38570683). The integrator complex provides a quality checkpoint during transcription elongation by driving premature transcription termination of transcripts that are unfavorably configured for transcriptional elongation: the complex terminates transcription by (1) catalyzing dephosphorylation of the C-terminal domain (CTD) of Pol II subunit POLR2A/RPB1 and SUPT5H/SPT5, (2) degrading the exiting nascent RNA transcript via endonuclease activity and (3) promoting the release of…

Subunit structure

Component of the Integrator complex, composed of core subunits INTS1, INTS2, INTS3, INTS4, INTS5, INTS6, INTS7, INTS8, INTS9/RC74, INTS10, INTS11/CPSF3L, INTS12, INTS13, INTS14 and INTS15 (PubMed:16239144, PubMed:25201415, PubMed:33243860, PubMed:33548203, PubMed:34762484, PubMed:38570683, PubMed:39032490). The core complex associates with protein phosphatase 2A subunits PPP2CA and PPP2R1A, to…

Subcellular location

Nucleus, Cytoplasm

Experimental structures in the PDB

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

PDB IDMethodResolutionChains and residues
5V8WX-ray2.1 ÅA/C/E/G=581-658
8RC4EM3.1 Åi=1-658
8R23EM3.2 ÅB=1-658
8UIBEM3.21 ÅI=1-658
7BFPEM3.5 ÅA=1-658
7BFQEM3.5 ÅA=1-658
7CUNEM3.5 ÅI=1-658
7PKSEM3.6 Åi=1-658
8RBZEM3.7 Åi=1-658
8R22EM3.9 ÅB=1-658
8R2DEM3.9 ÅB=1-658
8RBXEM4.1 Åi=1-658
8YJBEM4.1 ÅI=1-658
7YCXEM4.18 ÅI=1-658
9VD9EM4.6 ÅI=1-658

More AlphaFold highlights

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