# How can i dock metal containing protein with ligand?

**URL:** <https://ask.bioexcel.eu/t/how-can-i-dock-metal-containing-protein-with-ligand/1824>\
**Category:** HADDOCK\
**Created:** [February 12, 2020, 10:53am UTC](https://ask.bioexcel.eu/t/how-can-i-dock-metal-containing-protein-with-ligand/1824 "2020-02-12T10:53:40Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![noskcad](https://avatars.discourse-cdn.com/v4/letter/n/8e8cbc/32.png) [@noskcad](https://ask.bioexcel.eu/u/noskcad)\
**Post date:** [February 12, 2020, 10:53am UTC](https://ask.bioexcel.eu/t/how-can-i-dock-metal-containing-protein-with-ligand/1824/1 "2020-02-12T10:53:40Z")

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I am using Superoxide dismutase protein which containing copper ion and zinc ions.  
I tried haddock, it return in error that the pdb file result inconsistency as a result of ZN and CU present in the file.  
How can i solved this error ?

Thank you

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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:** [February 12, 2020, 11:26am UTC](https://ask.bioexcel.eu/t/how-can-i-dock-metal-containing-protein-with-ligand/1824/2 "2020-02-12T11:26:40Z")

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The naming of ions is very specific. Many threads already in the forum about this (it is searchable…)

E.g.:

[https://ask.bioexcel.eu/t/dealing-with-elemental-ions/102](https://ask.bioexcel.eu/t/dealing-with-elemental-ions/102)