Protein Feature Visualisation on 3D structure (PFV3D) is an online server to facilitate the mapping and visualization of UniProt feature annotation/s (Domain, Secondary structure, Active site/s etc.) as well as user specified feature/s on the corresponding 3D structure. Description of feature annotations is available on UniProt help section: https://www.uniprot.org/help/sequence_annotation
The server also provides utility for UniProt to PDB or PDB to UniProt Residue mapping which is a very tedious task to do manually. Along with residue mapping, the utility also provides information on residues for which co-ordinates are missing in PDB file.
A specialized Perl module has been developed for extraction and downloading of UniProt feature annotation/s (sub-sequences of features) in a customized manner. User can download and use this module from the GitHub page: https://github.com/rajivkarbhal/SFV