# Protein-carb using the HADDOCK server?

**URL:** <https://ask.bioexcel.eu/t/protein-carb-using-the-haddock-server/1208>\
**Category:** HADDOCK\
**Created:** [October 2, 2018, 8:19am UTC](https://ask.bioexcel.eu/t/protein-carb-using-the-haddock-server/1208 "2018-10-02T08:19:57Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Gianluca\_Cioci](https://avatars.discourse-cdn.com/v4/letter/g/5e9695/32.png) [@Gianluca\_Cioci](https://ask.bioexcel.eu/u/Gianluca_Cioci)\
**Post date:** [October 2, 2018, 8:19am UTC](https://ask.bioexcel.eu/t/protein-carb-using-the-haddock-server/1208/1 "2018-10-02T08:19:58Z")

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Dear All,

Is it possible to perform protein-carbohydrate docking using the HADDOCK server ?

Thank you,

GIA

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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:** [October 2, 2018, 10:34am UTC](https://ask.bioexcel.eu/t/protein-carb-using-the-haddock-server/1208/2 "2018-10-02T10:34:02Z")

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Hi GIA,

Check the following thread for instructions:

> [@Docking tetrasaccharide to lectin](http://ask.bioexcel.eu/t/docking-tetrasaccharide-to-lectin/1033):
>
> Hi, I am running some docking experiments on a tetrasaccharide docking to a lectin. The files I submit are 1) receptor/lectin in PDB format, chains A and B, which make up the binding site, 2) tetrasaccharide, in PDB format with HETATM (instead of ATOM) and 4 residues. Both files seem to be processed correctly and the job is submitted. In the results the tetrasaccharide is severed in 4 separate units though, docked separately, as it seems. Not sure what I am doing wrong. Any ideas? Thank you in …