# Protein DNA run fails

**URL:** <https://ask.bioexcel.eu/t/protein-dna-run-fails/1065>\
**Category:** HADDOCK\
**Created:** [July 16, 2018, 7:18am UTC](https://ask.bioexcel.eu/t/protein-dna-run-fails/1065 "2018-07-16T07:18:06Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![mtrellet](https://dub1.discourse-cdn.com/flex013/user_avatar/ask.bioexcel.eu/mtrellet/32/42_2.png) [@mtrellet](https://ask.bioexcel.eu/u/mtrellet)\
**Post date:** [July 16, 2018, 12:35pm UTC](https://ask.bioexcel.eu/t/protein-dna-run-fails/1065/2 "2018-07-16T12:35:37Z")

</div>

Hello,

This is possible to provide a PDB with multiple chains but then you need to have unique residue IDs for all residues. Meaning that your second chain (here `B`) should start with residue ID 202 (last residue ID from chain `A` + 1).

Mikael

PS: Note that this forum is searchable and the answer to your question is already provided… E.g.:

> [@Dealing with dimers](http://ask.bioexcel.eu/t/dealing-with-dimers/42):
>
> Hellow everybody I have problems using Haddock for dimers. I’ve received several different messages: Using pdb (from pdb databse) There was an inconsistency in your data Error message First pdb file contains multiple forms of the same residue. This is not supported in the current form. If you would like to supply multiple conformations, please create an ensemble using a pdb with only one chain (but is a dimer) There was an inconsistency in your data Error message First pdb file contai…

and

> [@Error in the docking process (overlapping numbering)](http://ask.bioexcel.eu/t/error-in-the-docking-process-overlapping-numbering/963):
>
> Hi! I received a email with this error: There was an inconsistency in your data Error message First pdb file contains multiple chains with overlapping numbering: A151 - B151 How can I solve it? Thanks!

---

_[View the full topic](https://ask.bioexcel.eu/t/protein-dna-run-fails/1065)._