# RNA 3D Structure generated by 3D ART causing error in Haddock

**URL:** https://ask.bioexcel.eu/t/rna-3d-structure-generated-by-3d-art-causing-error-in-haddock/1191
**Category:** HADDOCK
**Created:** [September 22, 2018, 12:18pm UTC](https://ask.bioexcel.eu/t/rna-3d-structure-generated-by-3d-art-causing-error-in-haddock/1191 "2018-09-22T12:18:32Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![attaribinm](https://avatars.discourse-cdn.com/v4/letter/a/87869e/32.png) [@attaribinm](https://ask.bioexcel.eu/u/attaribinm)
#### Post date: [September 22, 2018, 12:18pm UTC](https://ask.bioexcel.eu/t/rna-3d-structure-generated-by-3d-art-causing-error-in-haddock/1191/1 "2018-09-22T12:18:32Z")

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Hi  
I am using 3D ART to make a 3D model of my RNA structure, it produced multiple files in output. Which file we have to use as input in HADDOCK??

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### Author: ![amjjbonvin](https://dub1.discourse-cdn.com/flex013/user_avatar/ask.bioexcel.eu/amjjbonvin/32/23_2.png) [@amjjbonvin](https://ask.bioexcel.eu/u/amjjbonvin)
#### Post date: [September 23, 2018, 3:16pm UTC](https://ask.bioexcel.eu/t/rna-3d-structure-generated-by-3d-art-causing-error-in-haddock/1191/2 "2018-09-23T15:16:54Z")

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Check the README files…

If you checked the option to make HADDOCK ready file, it should be the last dir. I