# Ambiguous Restraints for Iterative Assignment

> software

**Wikidata**: [Q109499967](https://www.wikidata.org/wiki/Q109499967)  
**Source**: https://4ort.xyz/entity/ambiguous-restraints-for-iterative-assignment

## Summary
Ambiguous Restraints for Iterative Assignment (ARIA) is a software application. It functions as a server designed for automated NMR structure calculation.

## Key Facts
- **Instance of:** software
- **Primary Function:** Automated NMR structure calculation server
- **Official Name:** Ambiguous Restraints for Iterative Assignment (ARIA)
- **Official Website:** http://aria.pasteur.fr/ (with a French language interface)
- **Described By:** The scientific source "ARIAweb: a server for automated NMR structure calculation"
- **Organizational Context:** ARIA is part of ELIXIR France, an infrastructure for life-science data.
- **Wikidata Description:** software

## FAQs
### Q: What is the primary purpose of ARIA software?
A: ARIA is a specialized server application used for automating the calculation of molecular structures based on Nuclear Magnetic Resonance (NMR) data. It processes ambiguous restraints to iteratively assign and refine structural models.

### Q: What organization is associated with the development and maintenance of ARIA?
A: ARIA is part of the ELIXIR France node, which indicates it is supported within a national infrastructure for biological data resources. Its official web presence is hosted by the Pasteur Institute.

## Why It Matters
ARIA addresses a critical need in structural biology by automating the complex and labor-intensive process of NMR structure determination. This automation increases the throughput and reliability of generating accurate molecular models, which are fundamental for understanding biological function and facilitating drug discovery. Its role as a specialized computational tool within the ELIXIR infrastructure underscores its importance as a shared resource for the life sciences community.

## Notable For
- **Specialized Application:** It is specifically designed for automated NMR structure calculation, a niche but essential task in biophysics and structural biology.
- **Integration with Research Infrastructure:** Its association with ELIXIR France highlights its status as a recognized and supported tool within a major European life-science data network.

## Body
### Definition and Classification
Ambiguous Restraints for Iterative Assignment (ARIA) is an instance of software. It is formally categorized as a server application designed for a specific scientific computational task.

### Function and Capabilities
The core function of ARIA is to serve as an automated platform for calculating three-dimensional molecular structures using data from Nuclear Magnetic Resonance (NMR) spectroscopy. It operates by handling ambiguous restraints during the iterative assignment process, which is a key step in NMR structure determination.

### Organizational and Web Presence
ARIA is developed and maintained as part of ELIXIR France, a node within the wider ELIXIR infrastructure that coordinates bioinformatics resources across Europe. Its official website, `http://aria.pasteur.fr/`, is presented in French, indicating its primary linguistic and institutional affiliation with the Pasteur Institute in France.

### Academic Documentation
The software and its web-based interface are formally described in the scientific literature, specifically in a publication titled "ARIAweb: a server for automated NMR structure calculation." This source provides detailed technical and methodological information about the application.

## References

1. [Source](http://www.elixir-europe.org/about-us/who-we-are/nodes/france)