> For the complete documentation index, see [llms.txt](https://docs.labii.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.labii.com/widgets/section-widgets/biology/protein.md).

# Protein

## Overview

The Protein category provides section widgets for reviewing protein structure and sequence features directly within Labii ELN and LIMS records. These widgets help researchers connect Protein Data Bank entries to experimental documentation, making it easier to inspect 3D molecular models, sequence-position annotations, and biologically relevant regions without leaving the record. Together, they support structural biology, protein engineering, antibody research, and assay interpretation workflows where protein context needs to stay tied to protocols, observations, and conclusions. Use these widgets when you want molecular insight and scientific narrative to live in the same traceable workspace.

## Widgets

* [MolStar](/widgets/section-widgets/biology/protein/molstar.md) - Visualize 3D protein and antibody structures from PDB IDs
* [RCSB Saguaro](/widgets/section-widgets/biology/protein/rcsb-saguaro.md) - Display protein sequence features and annotations from PDB IDs


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# Agent Instructions
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## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.labii.com/widgets/section-widgets/biology/protein.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.