FragKB: Structural and literature annotation resource of conserved peptide fragments and residues

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Abstract

Background: FragKB (Fragment Knowledgebase) is a repository of clusters of structurally similar fragments from proteins. Fragments are annotated with information at the level of sequence, structure and function, integrating biological descriptions derived from multiple existing resources and text mining. Methodology: FragKB contains approximately 400,000 conserved fragments from 4,800 representative proteins from PDB. Literature annotations are extracted from more than 1,700 articles and are available for over 12,000 fragments. The underlying systematic annotation workflow of FragKB ensures efficient update and maintenance of this database. The information in FragKB can be accessed through a web interface that facilitates sequence and structural visualization of fragments together with known literature information on the consequences of specific residue mutations and functional annotations of proteins and fragment clusters. FragKB is accessible online at http://ubio.bioinfo.cnio.es/biotools/fragkb/. Significance: The information presented in FragKB can be used for modeling protein structures, for designing novel proteins and for functional characterization of related fragments. The current release is focused on functional characterization of proteins through inspection of conservation of the fragments. © 2010 Tendulkar et al.

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Tendulkar, A. V., Krallinger, M., de la Torre, V., López, G., Wangikar, P. P., & Valencia, A. (2010). FragKB: Structural and literature annotation resource of conserved peptide fragments and residues. PLoS ONE, 5(3). https://doi.org/10.1371/journal.pone.0009679

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