[[http://services.mbi.ucla.edu/Verify_3D/ | Verify3d]]:Structure Evaluation server is a tool designed to help in the refinement of crystallographic structures

[[http://melolab.org/anolea/ | ANOLEA:]](Atomic Non-Local Environment Assessment) is a server that performs energy calculations on a protein chain, evaluating the "Non- Local Environment" (NLE) of each heavy atom in the molecule.

[[http://mordred.bioc.cam.ac.uk/~rapper/rampage.php | RAMPAGE:]] Ramachandran Plot Assessment

[[http://psvs-1_4-dev.nesg.org// | PSVS:]]The protein structure validation software suite (PSVS) is used for assessment of protein structures
generated from NMR, X-ray crystallographic and homology modeling methods.

[[http://services.mbi.ucla.edu/SAVES/Ramachandran/ |  The Ramachandran Plot Server]]


[[https://prosa.services.came.sbg.ac.at/prosa.php | Prosa:]] Protein structure analysis

[[http://www.ebi.ac.uk/thornton-srv/software/PROCHECK/ | PROCHECK]]