> ## Documentation Index
> Fetch the complete documentation index at: https://proto.evodesign.org/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# miRNA Specificity

> Score predicted miRNA-mediated repression with miRanda target-site calls.

<div class="page-hero">
  <img class="page-hero-banner" src="https://proto-bio.github.io/proto-assets/images/constraint/mirna-specificity/hero.png" alt="miRNA Specificity" />
</div>

<Note>
  **License:** miRanda's own code is licensed under GPL-2.0, and it federates over bundled data sources and components, each under its own license terms.
</Note>

<p class="entity-disclaimer">This constraint is open source. Any third-party models, product names, or trademarks referenced are the property of their respective owners, and Proto is not affiliated with them.</p>

<hr class="entity-rule" />

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<div class="tool-tab-bar"><span class="tool-tab-wrap"><label for="tools-constraint-mirna-specificity" class="tool-tab tab-open badge-tools"><svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><rect width="7" height="7" x="3" y="3" rx="1" /><rect width="7" height="7" x="14" y="3" rx="1" /><rect width="7" height="7" x="14" y="14" rx="1" /><rect width="7" height="7" x="3" y="14" rx="1" /></svg> Tools Used</label><label for="none-constraint-mirna-specificity" class="tool-tab tab-close badge-tools"><svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><rect width="7" height="7" x="3" y="3" rx="1" /><rect width="7" height="7" x="14" y="3" rx="1" /><rect width="7" height="7" x="14" y="14" rx="1" /><rect width="7" height="7" x="3" y="14" rx="1" /></svg> Tools Used</label></span> <span class="tool-tab-wrap"><label for="source-constraint-mirna-specificity" class="tool-tab tab-open badge-source"><svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="16 18 22 12 16 6" /><polyline points="8 6 2 12 8 18" /></svg> Source</label><label for="none-constraint-mirna-specificity" class="tool-tab tab-close badge-source"><svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="16 18 22 12 16 6" /><polyline points="8 6 2 12 8 18" /></svg> Source</label></span> <span class="tool-tab-wrap"><label for="cite-constraint-mirna-specificity" class="tool-tab tab-open badge-cite"><svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M3 21c3 0 7-1 7-8V5c0-1.25-.756-2.017-2-2H4c-1.25 0-2 .75-2 1.972V11c0 1.25.75 2 2 2 1 0 1 0 1 1v1c0 1-1 2-2 2s-1 .008-1 1.031V20c0 1 0 1 1 1z" /><path d="M15 21c3 0 7-1 7-8V5c0-1.25-.757-2.017-2-2h-4c-1.25 0-2 .75-2 1.972V11c0 1.25.75 2 2 2h.75c0 2.25.25 4-2.75 4v3c0 1 0 1 1 1z" /></svg> Cite</label><label for="none-constraint-mirna-specificity" class="tool-tab tab-close badge-cite"><svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M3 21c3 0 7-1 7-8V5c0-1.25-.756-2.017-2-2H4c-1.25 0-2 .75-2 1.972V11c0 1.25.75 2 2 2 1 0 1 0 1 1v1c0 1-1 2-2 2s-1 .008-1 1.031V20c0 1 0 1 1 1z" /><path d="M15 21c3 0 7-1 7-8V5c0-1.25-.757-2.017-2-2h-4c-1.25 0-2 .75-2 1.972V11c0 1.25.75 2 2 2h.75c0 2.25.25 4-2.75 4v3c0 1 0 1 1 1z" /></svg> Cite</label></span></div>

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<a href="https://github.com/evo-design/proto-language/blob/d3b7822f74ea64747cc751a3b2ab1aa6b799ac47/proto_language/constraint/sequence_annotation/mirna_specificity_constraint.py#L133" target="_blank" class="tab-panel source-panel" data-tab="source-constraint-mirna-specificity">
  <div class="source-info">
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    <span class="source-path">evo-design/proto-language<span class="source-subpath">/proto\_language/constraint/sequence\_annotation/mirna\_specificity\_constraint.py</span></span>
  </div>

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<div class="tab-panel cite-panel" data-tab="cite-constraint-mirna-specificity">
  <div class="cite-code-wrap">
    ```bibtex theme={null}
    @article{enright2003microrna,
      title={MicroRNA targets in Drosophila},
      author={Enright, Anton J and John, Bino and Gaul, Ulrike and Tuschl, Thomas and Sander, Chris and Marks, Debora S},
      journal={Genome Biology},
      volume={5},
      number={1},
      pages={R1},
      year={2003},
      doi={10.1186/gb-2003-5-1-r1}
    }

    @article{hofacker1994fast,
      title={Fast Folding and Comparison of RNA Secondary Structures},
      author={Hofacker, Ivo L and Fontana, Walter and Stadler, Peter F and Bonhoeffer, L. S. and Tacker, Manfred and Schuster, Peter},
      journal={Monatshefte f{\"u}r Chemie},
      volume={125},
      number={2},
      pages={167--188},
      year={1994},
      doi={10.1007/BF00818163}
    }
    ```
  </div>

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<div class="entity-contributors"><span class="entity-contributors-label">Constraint contributors</span><span class="entity-contributors-people"><a class="entity-contributor" href="https://github.com/adititm" target="_blank" rel="noopener" title="adititm: 2 commits"><img noZoom class="entity-contributor-avatar" src="https://avatars.githubusercontent.com/u/61667248?v=4&s=64" alt="" loading="lazy" /><span class="entity-contributor-login">adititm</span></a></span></div>
Score miRNA target-site burden in target DNA/RNA sequences.

## API Reference

<div class="api-model-section api-model-static api-config-section">
  <div class="api-model-header"><span class="api-model-badge api-config-badge">Config</span><span class="api-model-name">MiRNASpecificityConfig</span><a href="https://github.com/evo-design/proto-language/blob/d3b7822f74ea64747cc751a3b2ab1aa6b799ac47/proto_language/constraint/sequence_annotation/mirna_specificity_constraint.py#L18" target="_blank" class="func-table-btn func-source-btn api-model-source"><svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="16 18 22 12 16 6" /><polyline points="8 6 2 12 8 18" /></svg> Source</a></div>

  Configuration for miRNA target-site specificity scoring.

  <ParamField path="mirna_queries" type="List[string]" required>
    miRNA query sequences to scan against each target.
  </ParamField>

  <ParamField path="mirna_ids" type="array">
    Optional identifiers for miRNA queries.
  </ParamField>

  <ParamField path="mirna_weights" type="array">
    Optional nonnegative per-miRNA expression weights matching the miRNA query order.
  </ParamField>

  <ParamField path="direction" type="enum" default="maximize">
    Whether predicted miRNA repression should be high or low.

    Options: `maximize`, `minimize`
  </ParamField>

  <ParamField path="repression_threshold" type="number" default="2.0">
    Aggregated repression score treated as saturating success.
  </ParamField>

  <ParamField path="site_score_reference" type="number" default="150.0">
    Alignment score used to normalize each miRanda hit.
  </ParamField>

  <ParamField path="energy_reference" type="number" default="20.0">
    Absolute duplex energy used to normalize each miRanda hit.
  </ParamField>

  <ParamField path="miranda_config" type="MirandaConfig">
    miRanda scan configuration.
  </ParamField>
</div>

## Usage

```python python icon="python" theme={null}
from proto_language.core import Constraint
from proto_language.constraint import mirna_specificity_constraint, MiRNASpecificityConfig

constraint = Constraint(
    inputs=[segment],
    function=mirna_specificity_constraint,
    function_config=MiRNASpecificityConfig(
        # Configure parameters here
    ),
)

scores = constraint.evaluate()
```

## Metadata

| Property        | Value                          |
| --------------- | ------------------------------ |
| Key             | `mirna-specificity`            |
| Function        | `mirna_specificity_constraint` |
| Category        | `sequence_annotation`          |
| Mode            | `discrete`                     |
| Uses GPU        | `False`                        |
| Supported Types | `dna`, `rna`                   |
