THRESOLD FOR ASSIGNED MSi scores

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Sandeep Kumar Bansal

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Jul 26, 2023, 4:09:58 PM7/26/23
to HLAthena
Dear Siri,

I had a list of peptides which I used for peptide-allele prediction. I got assigned MSi scores for some of those peptides ranging from 0.1 to 0.99. What score can I consider as a threshold that a peptide is definitely presented by that allele.

Please reply.

Thank you!

Regards,

Sandeep Kumar Bansal
UTHealth Science Center Houston

Sisi Sarkizova

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Jul 27, 2023, 8:30:52 AM7/27/23
to Sandeep Kumar Bansal, HLAthena
Hi Sandeep, the MSi scores are the predicted likelihoods of binding so you can think of them as probabilities (1 is good, 0 is bad). I'd consider these scores as a continuous distribution rather than a strict threshold but as a general guidance I'd say scores >0.85 would tend to be high confidence binders. Please note that the algorithm also outputs percentile ranks (similarly to other prediction tools).

Best,
Sisi


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Sandeep Kumar Bansal

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Jul 28, 2023, 12:29:31 PM7/28/23
to HLAthena
Dear Sir,

Thank you for your response. It means a lot to me. I appreciate it. I have one more query. In percentile rank output, could you please suggest any cut off score for high confidence binders with your experience?

Regards,
Sandeep Kumar Bansal
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