What is MIME type "chemical/x-mmcif"?

A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.

MIME type chemical/x-mmcif is used to handle detailed crystallographic data. This format holds structured information about macromolecular models.

It records data such as atom positions, symmetry details, and unit cell parameters. The format is text-based and built for scientific precision. Files with this structure use the MMCIF extension.

• Used in structural biology research for representing 3D molecules.
• Essential for molecular modeling and crystallography software.
• Helps exchange scientific data between specialized applications.

This MIME type ensures that systems handle the file correctly and keeps data integrity intact. For more details, visit IUCr CIF Resources.

Associated file extensions

.mmcif

Usage Examples

HTTP Header

When serving content with this MIME type, set the Content-Type header:

    Content-Type: chemical/x-mmcif
  

HTML

In HTML, you can specify the MIME type in various elements:

    <a href="file.dat" type="chemical/x-mmcif">Download file</a>
  

Server-side (Node.js)

Setting the Content-Type header in Node.js:

    const http = require('http');
    
    http.createServer((req, res) => {
      res.setHeader('Content-Type', 'chemical/x-mmcif');
      res.end('Content here');
    }).listen(3000);
  

Associated file extensions

.mmcif