Integrated Human Practice

By talking to experts, listening to the needs of different stakeholders, and carefully assessing risks, we shaped our project into a safer, more applicable, and more impactful platform.

Overview

From concept to application, every step of our project was shaped by expert insights, safety considerations, and public engagement.

Designing functional proteins remains one of biotechnology's most powerful yet time-intensive challenges. Traditional protein drug development often exceeds 10 years and USD 2 billion in cost, with many candidates failing during late-stage trials. Our team set out to change that.

Through consultations with scientists, industry experts, and educators, we identified a critical gap: the need for a platform that can rapidly optimize proteins even with limited data while ensuring safety and applicability. These discussions inspired our integration of Reinforcement Learning (RL) and Directed Evolution (DE) into a continuous AI–experiment feedback loop.

We chose the SpyCatcher/SpyTag system as our first application due to its high potential in drug delivery, biosensing, and biomaterials, despite the scarcity of existing datasets. In the Dry Lab, our AI-driven modeling pipeline generates and evaluates candidate sequences; in the Wet Lab, directed evolution validates and improves them. The best results feed back into the model, driving iterative improvement.

Beyond technical innovation, we incorporated biosafety assessments and public engagement from the earliest stages. By embedding Human Practices into every step, we transformed a conceptual AI–biology framework into a practical, safe, and impactful protein design platform.

IHP Timeline

Background

Protein-based drug development is a long and costly process—often taking over 10 years and nearly USD 2 billion to complete. While some companies are incorporating AI and modeling into protein design workflows, most still face bottlenecks: limited datasets, slow validation, and low iteration speed nthu igem 10th.

During our research, we identified specific protein systems, such as SpyCatcher/SpyTag, that are underexplored yet possess enormous application potential. This inspired us to find a way to bridge the gap between AI-driven design and real-world applicationML + Evolution Idea Pro….

Our Idea

We designed a continuous AI–experiment feedback loop that integrates:

  • Active Deep Learning (ADL) for adaptive decision-making in sequence generation
  • Directed Evolution (DE) for real-world functional optimization

Our model explores sequence–structure–function space using generative AI, evaluates candidates with simulations and experimental assays, and integrates the best results back into the AI model. This cycle accelerates optimization for multiple objectives—from binding affinity to catalytic efficiency—while remaining effective even in small-data scenariosML + Evolution Idea Pro…nthu igem 10th.

Application

Our initial target is the SpyCatcher/SpyTag system—a lock-and-key protein pair forming irreversible covalent bonds under mild conditions. It is highly valuable for:

  • Stable protein conjugation
  • Modular assembly of functional biomolecules
  • Applications in biomaterials, drug delivery, and biosensing

However, current variants face limitations in pH stability and binding performance nthu ioogem 10th. By applying our iterative AI–DE pipeline, we aim to create new SpyCatcher/SpyTag versions optimized for specific industrial and research needs.

Modeling

In the Dry Lab, we combined ProteinMPNN and RF Diffusion to explore protein sequence space. Each candidate is evaluated via:

  • AlphaFold 3 structure prediction
  • Molecular Dynamics (MD) simulations for stability and binding analysis
  • Custom computational scoring for the target property

The sequence and structural data are encoded into a multi-modal autoencoder, enabling latent space optimization (e.g., Bayesian Optimization) to discover high-performance candidates. The best sequences are experimentally validated and fed back into the model for the next iterationML + Evolution Idea Pro….

Evolution

In the Wet Lab, we apply Directed Evolution to mimic natural selection:

  1. Generate diverse protein variants
  2. Experimentally screen for improved performance
  3. Select the best performers and feed them back into the AI pipeline

This mutual reinforcement between in silico modeling and in vitro evolution shortens optimization cycles and improves final protein qualitynthu igem 10th.

Safety

We have assessed potential biosafety and biosecurity risks associated with genetic modification and protein applications, including off-target effects and pH-dependent performance of SpyCatcher/SpyTag nthu igem 10th. Risk management strategies have been developed to ensure compliance with safety regulations. Furthermore, we evaluate application controllability and environmental impact to guarantee the long-term safety of our designs.

Education

We plan to promote public understanding of protein design and AI applications in biotechnology through outreach activities, educational camps, and social media engagement. By collaborating with educational institutions, museums, and community programs, we will design interactive content and teaching materials to make scientific knowledge more accessible to audiences of all ages nthu igem 10th.

Human Practices Maturity Model

Cycle

1. Reflecting on Design Decisions

High

Assay-first plan; KPIs set (time-to-candidate, per-iteration gain, pH robustness); pre-declared baselines/ablations; data schema + stop/retrain gates.

Reasoning: Stakeholder input directly shaped design choices and documentation; decisions trace to measurable KPIs and SOPs.

2. Exploring & Reflecting on Context Beyond the Lab

Mid–High

Considered translational limits (dose, transporter variability), regulatory/safety alignment, operational throughput; public education plan.

Reasoning: Strong context mapping; next step is explicit "context → design pivot" memos affecting scope/timelines.

3. Incorporating Diverse Perspectives

High

Advisors across ML, biochemistry, evolution, safety, clinic, and industry; feedback led to SpyCatcher/SpyTag focus, loop KPIs, active-learning cadence.

Reasoning: Diverse—and critical—voices were integrated with visible project changes.

4. Anticipating Positive & Negative Impacts

Mid–High

Safety-by-design platform (toxicity head + independent filter, do-not-design lists); BSL-1/2, in-vitro only; pH-bounded claims; BNCT T/N imaging gate.

Reasoning: Robust safeguards; to reach High, co-develop mitigations with external biosafety/regulatory partners and document adopted changes.

5. Responding to Human Practices Work

High

HP insights define assays (binding vs. stability), library schemas, mutation budgets, and cadence; education framed as duty-of-care.

Reasoning: HP continuously informs technical and communication decisions, not an add-on.

6. Approaching Limitations with Integrity

High

Modeling/training-set limits and QM/MM burdens; fixed screen caps; stop-loss thresholds; plan to publish negatives/benchmarks.

Reasoning: Transparent about uncertainties and pre-committed adaptation rules.

7. Creativity & Originality

High

Closed AI↔DE loop with pH-conditioned objectives and platform-level safety applied to an underexplored but practical SpyCatcher/SpyTag system.

Reasoning: Novel integration oriented to shareable benchmarks rather than one-off results.

Hover and scroll to navigate phases (circular)

Summary

Axis Level
Reflecting on Design Decisions High
Exploring & Reflecting on Context Beyond the Lab Mid–High
Incorporating Diverse Perspectives High
Anticipating Positive & Negative Impacts Mid–High
Responding to Human Practices Work High
Approaching Limitations with Integrity High
Creativity & Originality High

Table 1. Summary of Human Practices Maturity Model self-evaluation.
The table summarizes our maturity levels across seven axes. We reached High in five axes (Reflecting on Design Decisions, Incorporating Diverse Perspectives, Responding to Human Practices Work, Approaching Limitations with Integrity, and Creativity & Originality), with two axes at Mid–High (Exploring & Reflecting on Context Beyond the Lab and Anticipating Positive & Negative Impacts), reflecting strong stakeholder integration, measurable KPIs, and transparent documentation with ongoing development of context-to-design pivot mechanisms and external regulatory partnerships.

Human Practices Maturity Model

Figure 1. Human Practices Maturity Model self-evaluation for NTHU iGEM 10th.
The radar plot shows our self-assessment across seven axes, achieving High maturity in five areas: Reflecting on Design Decisions, Incorporating Diverse Perspectives, Responding to Human Practices Work, Approaching Limitations with Integrity, and Creativity & Originality. Two axes remain at Mid–High (Exploring & Reflecting on Context Beyond the Lab and Anticipating Positive & Negative Impacts), indicating areas for continued development through external partnerships and formalized design pivot processes.

Reflection

Our Human Practices Maturity Model shows strong performance in several key areas, including Exploring Context Beyond the Lab, Responding to Human Practices Work, and Creativity & Originality. From the outset, we grounded our project in industry needs, identified critical bottlenecks in protein design, and selected a high-impact application (SpyCatcher/SpyTag) to demonstrate the potential of our AI–Directed Evolution pipeline. Stakeholder engagement has already shaped our technical design, from data strategy to wet-lab feasibility, and our unique integration of reinforcement learning with iterative experimental feedback represents a novel approach within iGEM.

We also demonstrate maturity in Reflecting on Design Decisions, Incorporating Diverse Perspectives, and Anticipating Positive & Negative Impacts. We actively considered biosafety, environmental conditions, and ethical implications, embedding safeguards into our design. However, while we have engaged with a range of academic and industry stakeholders, we recognize that iterative, two-way dialogue—especially with regulatory authorities and critical voices—can be strengthened.

The axis with the most room for growth is Approaching Limitations with Integrity. Although we are transparent about small-data constraints, environmental dependencies, and potential model generalizability issues, we have not yet established a formal review mechanism to revisit limitations and adapt our strategy throughout the project lifecycle.

Future Plan

To advance our maturity across all axes, we plan to:

  1. Deepen Stakeholder Iteration

    Establish recurring check-ins with domain experts, regulatory advisors, and potential end-users to ensure our design choices remain relevant, feasible, and compliant. Actively seek input from critical or alternative perspectives to challenge and strengthen our assumptions.

  2. Enhance Contextual Integration

    Expand our research on market readiness, potential industrial partnerships, and policy landscapes in multiple regions to prepare for potential real-world deployment. Investigate intellectual property (IP) strategies to support future commercialization pathways.

  3. Strengthen Impact Anticipation

    Conduct structured "misuse scenario" workshops to identify and mitigate unintended applications. Collaborate with biosafety experts to co-develop response plans for hypothetical failure modes.

  4. Formalize Limitation Review

    Implement a periodic SWOT review cycle to reassess strengths, weaknesses, opportunities, and threats at defined milestones. Document adaptation decisions and communicate them transparently in both technical and Human Practices reports.

  5. Expand Public Engagement

    Develop targeted educational content for different audience segments, from high school students to policymakers, to broaden societal understanding of AI-assisted protein design. Partner with science museums and outreach programs to create interactive demonstrations of our platform.

By focusing on these areas, we aim to progress towards the highest maturity level across all axes, ensuring our project is not only technically innovative but also socially responsible, ethically sound, and ready for real-world translation.