PMID- 22943296 OWN - NLM STAT- MEDLINE DCOM- 20130124 LR - 20211021 IS - 1476-511X (Electronic) IS - 1476-511X (Linking) VI - 11 DP - 2012 Sep 4 TI - Agonistic effect of polyunsaturated fatty acids (PUFAs) and its metabolites on brain-derived neurotrophic factor (BDNF) through molecular docking simulation. PG - 109 LID - 10.1186/1476-511X-11-109 [doi] AB - BACKGROUND: Brain-derived neurotrophic factor (BDNF) is a potent neurotrophic factor that is implicated in the regulation of food intake and body weight. Polyunsaturated fatty acids (PUFAs) localised in cell membranes have been shown to alter the levels of BDNF in the brain, suggesting that PUFAs and BDNF could have physical interaction with each other. To decipher the molecular mechanism through which PUFAs modulates BDNF's activity, molecular docking was performed for BDNF with PUFAs and its metabolites, with 4-Methyl Catechol as a control. RESULTS: Inferring from molecular docking studies, lipoxin A4 (LXA4), and a known anti-inflammatory bioactive metabolite derived from PUFAs, with a binding energy of -3.98 Kcal/mol and dissociation constant of 1.2 mM showed highest binding affinity for BDNF in comparison to other PUFAs and metabolites considered in the study. Further, the residues Lys 18, Thr 20, Ala 21, Val 22, Phe 46, Glu 48, Lys 50, Lys 58, Thr 75, Gln 77, Arg 97 and Ile 98 form hot point motif, which on interaction enhances BDNF's function. CONCLUSION: These results suggest that PUFAs and their metabolites especially, LXA4, modulate insulin resistance by establishing a physical interaction with BDNF. Similar interaction(s) was noted between BDNF and resolvins and protectins but were of lesser intensity compared to LXA4. FAU - Vetrivel, Umashankar AU - Vetrivel U AD - Department of Bioinformatics, Vision Research Foundation, Chennai 600006, India. FAU - Ravichandran, Sathya Baarathi AU - Ravichandran SB FAU - Kuppan, Kaviarasan AU - Kuppan K FAU - Mohanlal, Jithu AU - Mohanlal J FAU - Das, Undurti Narasimha AU - Das UN FAU - Narayanasamy, Angayarkanni AU - Narayanasamy A LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120904 PL - England TA - Lipids Health Dis JT - Lipids in health and disease JID - 101147696 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Catechols) RN - 0 (Fatty Acids, Unsaturated) RN - 12GLI7JGB3 (4-methylcatechol) SB - IM MH - Amino Acid Motifs MH - Brain-Derived Neurotrophic Factor/agonists/*chemistry MH - Catechols/chemistry MH - Fatty Acids, Unsaturated/*chemistry MH - Humans MH - Hydrogen Bonding MH - *Molecular Docking Simulation MH - Protein Binding MH - Protein Stability MH - Protein Structure, Tertiary MH - Thermodynamics PMC - PMC3477081 EDAT- 2012/09/05 06:00 MHDA- 2013/01/25 06:00 PMCR- 2012/09/04 CRDT- 2012/09/05 06:00 PHST- 2012/07/24 00:00 [received] PHST- 2012/08/27 00:00 [accepted] PHST- 2012/09/05 06:00 [entrez] PHST- 2012/09/05 06:00 [pubmed] PHST- 2013/01/25 06:00 [medline] PHST- 2012/09/04 00:00 [pmc-release] AID - 1476-511X-11-109 [pii] AID - 10.1186/1476-511X-11-109 [doi] PST - epublish SO - Lipids Health Dis. 2012 Sep 4;11:109. doi: 10.1186/1476-511X-11-109.