The mechanism of proton transport mediated by mitochondrial uncoupling proteins

被引:121
作者
Garlid, KD
Jaburek, M
Jezek, P
机构
[1] Oregon Grad Inst Sci & Technol, Dept Biochem & Mol Biol, Portland, OR 97291 USA
[2] Acad Sci Czech Republic, Inst Physiol, Dept Membrane Transport Biophys, CZ-142220 Prague, Czech Republic
关键词
uncoupling protein; fatty acid; H+ transport; chloride transport; mutagenesis;
D O I
10.1016/S0014-5793(98)01246-0
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The effort to understand the mechanism of uncoupling by UCP has devolved into two models - the fatty acid protonophore model and the proton buffering model, Evidence for each hypothesis is summarized and evaluated. We also evaluate the obligatory requirement for fatty acids in UCP1-mediated uncoupling and the question of fatty acid affinity for UCP1, The structural bases of UCP transport function and nucleotide inhibition are discussed in light of recent mutagenesis studies and in relationship to the sequences of newly discovered UCPs, (C) 1998 Federation of European Biochemical Societies.
引用
收藏
页码:10 / 14
页数:5
相关论文
共 33 条
  • [1] THE UNCOUPLING PROTEIN FROM BROWN FAT MITOCHONDRIA IS RELATED TO THE MITOCHONDRIAL ADP ATP CARRIER - ANALYSIS OF SEQUENCE HOMOLOGIES AND OF FOLDING OF THE PROTEIN IN THE MEMBRANE
    AQUILA, H
    LINK, TA
    KLINGENBERG, M
    [J]. EMBO JOURNAL, 1985, 4 (09) : 2369 - 2376
  • [2] H+ transport by uncoupling protein (UCP-1) Is dependent on a histidine pair, absent in UCP-2 and UCP-3
    Bienengraeber, M
    Echtay, KS
    Klingenberg, M
    [J]. BIOCHEMISTRY, 1998, 37 (01) : 3 - 8
  • [3] Uncoupling protein-3: A new member of the mitochondrial carrier family with tissue-specific expression
    Boss, O
    Samec, S
    PaoloniGiacobino, A
    Rossier, C
    Dulloo, A
    Seydoux, J
    Muzzin, P
    Giacobino, JP
    [J]. FEBS LETTERS, 1997, 408 (01) : 39 - 42
  • [4] Uncoupling protein-2: A novel gene linked to obesity and hyperinsulinemia
    Fleury, C
    Neverova, M
    Collins, S
    Raimbault, S
    Champigny, O
    LeviMeyrueis, C
    Bouillaud, F
    Seldin, MF
    Surwit, RS
    Ricquier, D
    Warden, CH
    [J]. NATURE GENETICS, 1997, 15 (03) : 269 - 272
  • [5] NEW INSIGHTS INTO MECHANISMS OF ANION UNIPORT THROUGH THE UNCOUPLING PROTEIN OF BROWN ADIPOSE-TISSUE MITOCHONDRIA
    GARLID, KD
    [J]. BIOCHIMICA ET BIOPHYSICA ACTA, 1990, 1018 (2-3) : 151 - 154
  • [6] On the mechanism of fatty acid-induced proton transport by mitochondrial uncoupling protein
    Garlid, KD
    Orosz, DE
    Modriansky, M
    Vassanelli, S
    Jezek, P
    [J]. JOURNAL OF BIOLOGICAL CHEMISTRY, 1996, 271 (05) : 2615 - 2620
  • [7] GARLID KD, 1989, BIOCHIM BIOPHYS ACTA, V976, P6199
  • [8] Cloning and characterization of an uncoupling protein homolog - A potential molecular mediator of human thermogenesis
    Gimeno, RE
    Dembski, M
    Weng, X
    Deng, NH
    Shyjan, AW
    Gimeno, CJ
    Iris, F
    Ellis, SJ
    Woolf, EA
    Tartaglia, LA
    [J]. DIABETES, 1997, 46 (05) : 900 - 906
  • [9] The uncoupling protein UCP1 does not increase the proton conductance of the inner mitochondrial membrane by functioning as a fatty acid anion transporter
    Gonzalez-Barroso, MM
    Fleury, C
    Bouillaud, F
    Nicholls, DG
    Rial, E
    [J]. JOURNAL OF BIOLOGICAL CHEMISTRY, 1998, 273 (25) : 15528 - 15532
  • [10] Activation of the uncoupling protein by fatty acids is modulated by mutations in the C-terminal region of the protein
    GonzalezBarroso, MM
    Fleury, C
    Arechaga, I
    Zaragoza, P
    LeviMeyrueis, C
    Raimbault, S
    Ricquier, D
    Bouillaud, F
    Rial, E
    [J]. EUROPEAN JOURNAL OF BIOCHEMISTRY, 1996, 239 (02): : 445 - 450