國家衛生研究院 NHRI:Item 3990099045/12890
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/12890


    Title: Antimicrobial peptide TP4 targets mitochondrial adenine nucleotide translocator 2
    Authors: Su, BC;Liu, YC;Ting, CH;Lyu, PC;Chen, JY
    Contributors: Institute of Population Health Sciences
    Abstract: Tilapia piscidin (TP) 4 is an antimicrobial peptide derived from Nile tilapia (Oreochromis niloticus), which shows broad-spectrum antibacterial activity and excellent cancer-killing ability in vitro and in vivo. Like many other antimicrobial peptides, TP4 treatment causes mitochondrial toxicity in cancer cells. However, the molecular mechanisms underlying TP4 targeting of mitochondria remain unclear. In this study, we used a pull-down assay on A549 cell lysates combined with LC-MS/MS to discover that TP4 targets adenine nucleotide translocator (ANT) 2, a protein essential for adenine nucleotide exchange across the inner membrane. We further showed that TP4 accumulates in mitochondria and colocalizes with ANT2. Moreover, molecular docking studies showed that the interaction requires Phe1, Ile2, His3, His4, Ser11, Lys14, His17, Arg21, Arg24 and Arg25 residues in TP4 and key residues within the cavity of ANT2. These findings suggest a mechanism by which TP4 may induce mitochondrial dysfunction to disrupt cellular energy metabolism.
    Date: 2020-08-09
    Relation: Marine Drugs. 2020 Aug 9;18(8):Article number 417.
    Link to: http://dx.doi.org/10.3390/md18080417
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1660-3397&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000564164900001
    Cited Times(Scopus): https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85089408320
    Appears in Collections:[Others] Periodical Articles

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