Journal
BIOLOGIA
Volume 69, Issue 5, Pages 541-556Publisher
SPRINGER
DOI: 10.2478/s11756-014-0358-8
Keywords
endolysin; in silico analysis; catalytic and binding domains; domain arrangement
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Funding
- Ministry of Education of the Slovak Republic
- Slovak Research and Development Agency [APVV-0098-10]
- Slovak Academy of Sciences (VEGA) [2/0140/11]
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Endolysins as a class of antibacterial enzymes are expected to become a very useful tool for many purposes to control spreading of, e. g., multiresistant bacteria in different environments. Their antimicrobial properties could be broadened or altered by mutagenesis, domain swapping or gene shuffling. Therefore, the specific designing of endolysins to achieve their desired properties is challenging. This work is focused on the in silico analysis of protein domains presence in sequences of phage and prophage endolysins, followed by the study of variety of domain combinations in the individual endolysin types. The multiple sequence alignment of endolysin sequences revealed the recognition of sequence types with typical domain arrangement and conserved amino acids, divided according to the target substrate in bacterial cell walls. The five protein families of catalytic domains are specifically occurring in dependence of bacterial Gram-type. The presence, types and numbers of binding domains within endolysin sequences were also studied. The obtained results enable a more targeted design of endolysins with required antimicrobial properties.
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