# ATOM/HETATM line does not meet the expected format

**URL:** <https://ask.bioexcel.eu/t/atom-hetatm-line-does-not-meet-the-expected-format/4296>\
**Category:** Uncategorized\
**Created:** [May 2, 2023, 7:50am UTC](https://ask.bioexcel.eu/t/atom-hetatm-line-does-not-meet-the-expected-format/4296 "2023-05-02T07:50:00Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![nurarshad](https://avatars.discourse-cdn.com/v4/letter/n/ed655f/32.png) [@nurarshad](https://ask.bioexcel.eu/u/nurarshad)\
**Post date:** [May 2, 2023, 7:50am UTC](https://ask.bioexcel.eu/t/atom-hetatm-line-does-not-meet-the-expected-format/4296/1 "2023-05-02T07:50:00Z")

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Hi, I am currently trying to do the molecular docking and I got this error  
Error in PDB file.  
Issue when parsing the PDB file at line **1**.  
ATOM/HETATM line does not meet the expected format

for one of my pdb file. I tried to add the two whitespaces after the ATOM as instructed but the error is still there. I included both the non-edited and edited as I think I did wrongly in editing the pdb file. please do correct me. thank you.

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<div class="post-metadata">

**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:** [May 2, 2023, 3:43pm UTC](https://ask.bioexcel.eu/t/atom-hetatm-line-does-not-meet-the-expected-format/4296/2 "2023-05-02T15:43:35Z")

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The PDB format is very strict.

You can check it using for example our PDB-tools server