Q9NZ63: Splicing factor C9orf78 (C9orf78)

Splicing factor C9orf78 (C9orf78) is a 289-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q9NZ63.

Gene
C9orf78
Organism
Homo sapiens
Length
289 residues
Mean pLDDT
68.8
Model
AF-Q9NZ63-F1 v6
Model created
1 Aug 2025
PDB structures
3

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Model confidence (pLDDT)

The mean pLDDT of this model is 68.8 (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 accurate8%
70 to 90Confident: backbone generally right38%
50 to 70Low: treat with caution48%
Below 50Very low: often disordered regions7%

What pLDDT means and how to read it

Function

Plays a role in pre-mRNA splicing by promoting usage of the upstream 3'-splice site at alternative NAGNAG splice sites; these are sites featuring alternative acceptor motifs separated by only a few nucleotides (PubMed:35241646). May also modulate exon inclusion events (PubMed:35241646). Plays a role in spliceosomal remodeling by displacing WBP4 from SNRNP200 and may act to inhibit SNRNP200 helicase activity (PubMed:35241646). Binds U5 snRNA (PubMed:35241646). Required for proper chromosome segregation (PubMed:35167828). Not required for splicing of shelterin components (PubMed:35167828)

Subunit structure

Component of the spliceosome (PubMed:35241646). Interacts with SNRNP200; the interaction is direct (PubMed:35241646). Interacts with PRPF8 (PubMed:35167828, PubMed:35241646)

Subcellular location

Nucleus, Chromosome, centromere

Experimental structures in the PDB

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

PDB IDMethodResolutionChains and residues
7OS2EM2.76 ÅC=1-289
8C6JEM2.8 ÅCT=1-289
9FMDEM3.3 Åx=1-289

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