Dear Subhash Solanki ,

A very good review about bioinformatics in relation to glycobiology is:

Frank, M., & Schloissnig, S. (2010). Bioinformatics and molecular modeling in glycobiology. Cellular and molecular life sciences, 67(16), 2749-2772.

https://link.springer.com/article/10.1007/s00018-010-0352-4

No personal experience but GLYCAM server might be something worthwhile looking at. It supposed to have included a builder for carbohydrates and glycoproteins (http://www.glycam.com). Or http://glycam.org/

Best regards.

You can try Glycosylator or Glycominestruc

You can use PyMOL's PyTMs plugin. It only adds the group though (which might be enough for phosphorylation), you might want to run some additional refinement for the glycans (e.g Rosetta Carbohydrate module perhaps)

https://pymolwiki.org/index.php/Pytms

Thank you, Sir Rob Keller

Thank You, Ma'am Khushbukhat Khan

Thank very Much Julia K. Varga

Dear Subhash Solanki ,

Did you try using:

Phyre2 http://www.sbg.bio.ic.ac.uk/phyre2/html/page.cgi?id=index

Also, here: https://www.expasy.org/proteomics/protein_structure

For glycosylation check out glycam.org they have a tool called Glycoprotein Builder which may help you.