theislab / scvelo

RNA Velocity generalized through dynamical modeling
https://scvelo.org
BSD 3-Clause "New" or "Revised" License
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Velocyto in sc-RNAseq coupled TCRseq on 5' #1244

Closed Baldosisley closed 1 month ago

Baldosisley commented 2 months ago

Greetings everyone,

I recently conducted an experiment combining sc-RNAseq with TCRseq using a 5' approach. After running velocyto and loading the .loom files, everything seemed to proceed smoothly. However, upon plotting the pie chart of spliced and unspliced reads, I noticed an unusual distribution: 64% unspliced, 32% spliced, and 4% ambiguous.

This finding is unexpected, as the scVelo vignette and the literature I've consulted typically report inverted percentages of spliced versus unspliced reads. Therefore, I'm curious about the feasibility of conducting this analysis with a 5' GEX and TCR approach. Is it possible, or does it require different preprocessing methods?

I would greatly appreciate any recommendations or insights you might have regarding this type of analysis.

Thank you sincerely.