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…ou know, how good of a binder it is to that original target. You’re using basically Boltz to predict the folding and the affinity to that molecule. So and then that kind of gives you a score? Exactly. So you use this model to predict the folding. And then you do two things. One is that you predict the structure and with something like Boltz2, and then you basically compare that structure with what the model predicted, what Boltz2 predicted. And this is sort of like in the field called consistency. It’s basically you want to make sure that, you know, the structure that you’re predicting is actually what you’re trying to design. And that gives you a much better confidence that, you know, that’s a good design. And so that’s the first filtering. And the second filtering that we did as part of kind of the Boltz2 pipeline that was released is that we look at the confidence that the model has in the structure. Now, unfortunately, kind of going to your question of, you know, predicting affinity, unfortunately, confidence is not a very good predictor of affinity. And so one of the things that we’ve actually done a ton of progress, you know, since we released Boltz2. And kind of we have some new results that we are going to kind of announce soon is kind of, you know, the ability to get much better hit rates when instead of, you know, trying to rely on confidence of the model, we are actually directly trying to predict the affinity of that interaction. Okay. Just backing up a minute. So your diffusion model actually predicts not only the protein sequence, but also the folding of it. Exactly. And actually, you can... One of the big different things that we did compared to other models in the space, and, you know, there were some papers that had already kind of done this before, but we really scaled it up was, you know, basically somewhat merging kind of the structure prediction and the sequence prediction into almost the same task. And so the way that Boltz2 works is that you are basically the only thing that you’re doing is predicting the structure. So the only sort of... Supervision is we give you a supervision on the structure, but because the structure is atomic and, you know, the different amino acids have a different atomic composition, basically from the way that you place the atoms, we also understand not only kind of the structure that you wanted, but also the identity of the amino acid that, you know, the models believed was there. And so we’ve basically, instead of, you know, having these two supervision signals, you know, one discrete, one continuous. That somewhat, you know, don’t interact well together. We sort of like build kind of like an encoding of, you know, sequences in structures that allows us to basically use exactly the same supervision signal that we were using to Boltz2 that, you know, you know, largely similar to what AlphaVol3 proposed, which is very scalable. And we can use that to design new proteins. Oh, interesting. Maybe a quick shout out to Hannes Stark on our team who like did all this work. Yeah. r to what AlphaVol3 proposed, which is very scalable. And we can use that to design new proteins. Oh, interesting. Maybe a quick shout out to Hannes Stark on our team who like did all this work. Yeah. Yeah, that was a really cool idea. I mean, like looking at the paper and there’s this is like encoding or you just add a bunch of, I guess, kind of atoms, which can be anything, and then they get sort of rearranged and then basically plopped on top of each other so that and then that encodes what the amino acid is. And there’s sort of like a unique way of doing this. It was that was like such a really such a cool, fun idea. I think that idea was had existed before. Yeah, there were a couple of papers. Yeah, I had proposed this and and Hannes really took it to the large scale. In the paper, a lot of the paper for Boltz2Gen is dedicated to actually the validation of the model. In my opinion, all the people we basically talk about feel that this sort of like in the wet lab or whatever the appropriate, you know, sort of like in real world validation is the whole problem or not the whole problem, but a big giant part of the problem. So can you talk a little bit about the highlights? From there, that really because to me, the results are impressive, both from the perspective of the, you know, the model and also just the effort that went into the validation by a large team. lights? From there, that really because to me, the results are impressive, both from the perspective of the, you know, the model and also just the effort that went into the validation by a large team. First of all, I think I should start saying is that both when we were at MIT and Thomas Yacolas and Regina Barzillai’s lab, as well as at Boltz, you know, we are not a we’re not a biolab and, you know, we are not a therapeutic company. And so to some extent, you know, we were first forced to, you know, look outside of, you know, our group, our team to do the experimental validation. One of the things that really, Hannes, in the team pioneer was the idea, OK, can we go not only to, you know, maybe a specific group and, you know, trying to find a specific system and, you know, maybe overfit a bit to that system and trying to validate. But how can we test this model? So. Across a very wide variety of different settings so that, you know, anyone in the field and, you know, printing design is, you know, such a kind of wide task with all sorts of different applications from therapeutic to, you know, biosensors and many others that, you know, so can we get a validation that is kind of goes across many different tasks? And so he basically put together, you know, I think it was something like, you know, 25 different. You know, academic and industry labs that committed to, you know, testing some of the designs from the model and some of this testing is still ongoing and, you know, giving results kind of back to us in exchange for, you know, hopefully getting some, you know, new great sequences for their task. And he was able to, you know, coordinate this, you know, very wide set of, you know, scientists and already in the paper, I think we. Shared results from, I think, eight to 10 different labs kind of showing results from, you know, designing peptides, designing to target, you know, ordered proteins, peptides targeting disordered proteins, which are results, you know, of designing proteins that bind to small molecules, which are results of, you know, designing nanobodies and across a wide variety of different targets. And so that’s sort of like. That gave to the paper a lot of, you know, validation to the model, a lot of validation that was kind of wide. And so those would be therapeutics for those animals or are they relevant to humans as well? They’re relevant to humans as well. Obviously, you need to do some work into, quote unquote, humanizing them, making sure that, you know, they have the right characteristics to so they’re not toxic to humans and so on. There are some approved medicine in the market that are nanobodies. There’s a general. General pattern, I think, in like in trying to design things that are smaller, you know, like it’s easier to manufacture at the same time, like that comes with like potentially other challenges, like maybe a little bit less selectivity than like if you have something that has like more hands, you know, but the yeah, there’s this big desire to, you know, try to design many proteins, nanobodies, small peptides, you know, that just are just great drug modalities.…

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