Sequence attributes for estimating the therapeutic index of peptide antibiotics (CROSBI ID 536299)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Juretić, Davor ; Bojović, Viktor ; Lučić, Bono
engleski
Sequence attributes for estimating the therapeutic index of peptide antibiotics
The therapeutic index (TI) of peptide antibiotics is defined as the ratio of hemolytic to antimicrobial activity. We constructed the database of 51 non-homologous helical antimicrobial peptides, isolated from frogs, with associated therapeutic index values determined on E. coli and human erythrocytes. Sequence attributes calculated by the SPLIT 3.5 server (split.pmfst.hr/split) are used for developing relationships between peptide structure and its therapeutic index. Helical amphipathic segments and G, Q, H, D, E amino acid frequencies are positively correlated with TI. High preferences for transmembrane helix conformation are negatively correlated with TI. The composite predictor is developed as a specific combination of these sequence-based parameters. Corresponding log-log model for estimating the therapeutic index exhibits good correlation (r = 0.9) with experimental TI values.
peptide antibiotics; therapeutic index; amphipathicity; amino acid frequencies; membrane helix preferences; structure-activity relationships
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o prilogu
19-19.
2007.
objavljeno
Podaci o matičnoj publikaciji
The 2nd Opatija Meeting on Computational Solutions in the Life Sciences
Darko Babić, Nađa Došlić, David Smith, Sanja Tomić, Kristian Vlahoviček
Zagreb: Institut Ruđer Bošković
978-953-6690-69-5
Podaci o skupu
2nd Opatija meeting on Computational Solutions in the Life Sciences
pozvano predavanje
04.09.2007-09.09.2007
Opatija, Hrvatska