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Uncoupling protein

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proton-motive force across mitochondrial membranes, activating the electron transport chain. Limiting the proton motive force through this process results in a negative feedback loop that limits ROS production. Especially, UCP2 decreases the transmembrane potential of mitochondria, thus decreasing the production of ROS. Thus, cancer cells may increase the production of UCP2 in mitochondria. This theory is supported by independent studies which show increased ROS production in both UCP2 and UCP3 knockout mice.
133:, which eventually led to the discovery of UCP1, initially known as "Uncoupling Protein". The brown tissue revealed elevated levels of mitochondria respiration and another respiration not coupled to ATP synthesis, which symbolized strong thermogenic activity. UCP1 was the protein discovered responsible for activating a proton pathway that was not coupled to ADP phosphorylation (ordinarily done through 276: 202:
Elsewhere in the body, uncoupling protein activities are known to affect the temperature in micro-environments. This is believed to affect other proteins' activity in these regions, though work is still required to determine the true consequences of uncoupling-induced temperature gradients within
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to the mitochondrial intermembrane space. The energy lost in dissipating the proton gradient via UCPs is not used to do biochemical work. Instead, heat is generated. This is what links UCP to thermogenesis. However, not every type of UCPs are related to thermogenesis. Although UCP2 and UCP3 are
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For example, UCPs alter the free calcium concentrations in the neuron. Mitochondria are a major site of calcium storage in neurons, and the storage capacity increases with potential across mitochondrial membranes. Therefore, when the uncoupling proteins reduce potential across these membranes,
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species are present. Among these activators are fatty acids, ROS, and certain ROS byproducts that are also reactive. Therefore, higher levels of ROS directly and indirectly cause increased activity of UCP2 and UCP3. This, in turn, increases proton leak from the mitochondria, lowering the
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show that these tissues do not function correctly without functioning uncoupling proteins. In fact, these studies revealed that cold-acclimation is not possible for these knockout mice, indicating that UCP1 is an essential driver of heat production in these brown adipose tissues.
291:, UCP2, UCP4, and UCP5 were shown to reside in neurons throughout the human central nervous system. These proteins play key roles in neuronal function. While many study findings remain controversial, several findings are widely accepted. 302:
As discussed above, neurons in the hippocampus experience increased concentrations of ATP in the presence of these uncoupling proteins. This leads scientists to hypothesize that UCPs improve synaptic plasticity and transmission.
299:, this implies UCPs play a role in regulating calcium concentrations in this region. Considering calcium ions play a large role in neurotransmission, scientists predict that these UCPs directly affect neurotransmission. 206:
The structure of human uncoupling protein 1 UCP1 has been solved by cryogenic-electron microscopy. The structure has the typical fold of a member of the SLC25 family. UCP1 is locked in a cytoplasmic-open state by
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Jones, S.A.; Gogoi, P.; Ruprecht, J.J.; King, M.S.; Lee, Y.; Zogg, T.; Pardon, E.; Chand, D.; Steel, S.; Coperman, D.M.; Cotrim, C.A.; Steyaert, J.; Crichton, P.G.; Moiseenkova-Bell, V.; Kunji, E.R.S. (2023).
63: 93:, for example, keeps the temperature of its spikes as much as 20 °C higher than the environment, spreading odor and attracting insects that fertilize the flowers. However, other substances, such as 194:
and small rodents, which provide non-shivering heat to these animals. These brown adipose tissues are essential to maintaining the body temperature of small rodents, and studies with (UCP1)-
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There are five UCP homologs known in mammals. While each of these performs unique functions, certain functions are performed by several of the homologs. The homologs are as follows:
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is also an uncoupling agent (chiefly in plants) and will decrease production of ATP and increase body temperature if taken in extreme excess. Uncoupling proteins are increased by
66:, which is also a proton channel. The two proteins thus work in parallel with one generating heat and the other generating ATP from ADP and inorganic phosphate, the last step in 243:
and ATP, actually resulting in a net increase in ATP concentration when these uncoupling proteins become coupled (i.e. the mechanism to allow proton leaking is inhibited).
1407: 1888: 46:) is a mitochondrial inner membrane protein that is a regulated proton channel or transporter. An uncoupling protein is thus capable of dissipating the 98: 1883: 1974: 1556: 267:
This process is important to human health, as high-concentrations of ROS are believed to be involved in the development of degenerative diseases.
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closely related to UCP1, UCP2 and UCP3 do not affect thermoregulatory abilities of vertebrates. UCPs are positioned in the same membrane as the
1642: 979:"Uncoupling protein-2 negatively regulates insulin secretion and is a major link between obesity, beta cell dysfunction, and type 2 diabetes" 650: 1451: 1400: 754:"UCP1 ablation induces obesity and abolishes diet-induced thermogenesis in mice exempt from thermal stress by living at thermoneutrality" 1742: 1677: 824:
Andrews ZB, Diano S, Horvath TL (November 2005). "Mitochondrial uncoupling proteins in the CNS: in support of function and survival".
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Richard D, Clavel S, Huang Q, Sanchis D, Ricquier D (November 2001). "Uncoupling protein 2 in the brain: distribution and function".
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Mailloux RJ, Harper ME (September 2011). "Uncoupling proteins and the control of mitochondrial reactive oxygen species production".
54: 2013: 1811: 1446: 666: 2180: 2008: 1672: 1393: 2003: 1789: 1747: 1346:, Ward MW (April 2000). "Mitochondrial membrane potential and neuronal glutamate excitotoxicity: mortality and millivolts". 295:
calcium ions are released to the surrounding environment in the neuron. Due to the high concentrations of mitochondria near
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The entire list of functions of UCP2 and UCP3 is not known. However, studies indicate that these proteins are involved in a
70:. Mitochondria respiration is coupled to ATP synthesis (ADP phosphorylation), but is regulated by UCPs. UCPs belong to the 2205: 686:"Uncoupling protein-3 is a mediator of thermogenesis regulated by thyroid hormone, beta3-adrenergic agonists, and leptin" 1593: 1535: 1425: 1025:"Uncoupling protein 2 prevents neuronal death including that occurring during seizures: a mechanism for preconditioning" 1647: 335:
Gaudry MJ, Jastroch M (March 2019). "Molecular evolution of uncoupling proteins and implications for brain function".
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Hagen T, Vidal-Puig A (February 2002). "Mitochondrial uncoupling proteins in human physiology and disease".
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Rousset S, Alves-Guerra MC, Mozo J, Miroux B, Cassard-Doulcier AM, Bouillaud F, Ricquier D (February 2004).
256: 1779: 1436: 224: 208: 86: 2153: 1893: 1769: 1605: 1583: 240: 90: 71: 259:(ROS). Current scientific consensus states that UCP2 and UCP3 perform proton transportation only when 1994: 1900: 1757: 1706: 1652: 933: 187: 130: 58: 227:
concentration with increased activity of UCP2. This is associated with cell degeneration, decreased
2210: 594:"The SLC25 Carrier Family: Important Transport Proteins in Mitochondrial Physiology and Pathology" 1924: 1566: 1371: 849: 519: 360: 1914: 1717: 1498: 1363: 1343: 1325: 1290: 1241: 1192: 1142: 1098: 1046: 1000: 959: 898: 841: 775: 734: 707: 646: 623: 571: 511: 461: 409: 352: 252: 219:
The effect of UCP2 and UCP3 on ATP concentrations varies depending on cell type. For example,
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Diano S, Matthews RT, Patrylo P, Yang L, Beal MF, Barnstable CJ, Horvath TL (November 2003).
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Zhang CY, Baffy G, Perret P, Krauss S, Peroni O, Grujic D, et al. (June 2001).
853: 364: 2049: 2024: 1682: 1561: 1474: 134: 17: 456: 439: 1276: 506: 489: 348: 1171:"Physiological functions of the mitochondrial uncoupling proteins UCP2 and UCP3" 922:"Structural basis of purine nucleotide inhibition of human uncoupling protein 1" 232: 191: 150: 114: 78: 1227: 1187: 1170: 867:
Horvath TL, Warden CH, Hajos M, Lombardi A, Goglia F, Diano S (December 1999).
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Uncoupling proteins play a role in normal physiology, as in cold exposure or
1732: 239:. The larger number of mitochondria increases the combined concentration of 220: 1367: 1329: 1294: 1245: 1196: 1146: 1102: 1067:
Jastroch M, Divakaruni AS, Mookerjee S, Treberg JR, Brand MD (2010-06-14).
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Kunji, E.R.S.; King, M.S.; Ruprecht, J.J.; Thangaratnarajah, C. (2020).
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The first uncoupling protein discovered, UCP1, was discovered in the
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Feldmann HM, Golozoubova V, Cannon B, Nedergaard J (February 2009).
2163: 2158: 2148: 2133: 2128: 2123: 2118: 2113: 2098: 2093: 2088: 2083: 2078: 2073: 2068: 2063: 2058: 1854: 1841: 542:"The SLC25 Mitochondrial Carrier Family: Structure and Mechanism" 162: 156: 1389: 380:"Uncoupling proteins: current status and therapeutic prospects" 279:
This diagram shows the location of UCP1 with respect to the
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cells and UCP3 in muscle cells stimulate production of
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secretion, and type II diabetes. Conversely, UCP2 in
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Gong DW, He Y, Karas M, Reitman M (September 1997).
490:"Mitochondrial proton leaks and uncoupling proteins" 247:
Maintaining concentration of reactive oxygen species
2047: 2022: 1992: 1972: 1922: 1913: 1867: 1830: 1798: 1766: 1714: 1705: 1661: 1629: 1602: 1580: 1543: 1534: 1511: 1483: 1460: 1433: 1424: 378:Nedergaard J, Ricquier D, Kozak LP (October 2005). 81:, because the energy is used to generate heat (see 440:"The biology of mitochondrial uncoupling proteins" 1120: 1118: 1116: 1114: 1112: 1062: 1060: 819: 817: 815: 813: 811: 809: 129:Scientists observed the thermogenic activity in 1259:Crichton, P.G.; Lee, Y.; Kunji, E.R.S. (2017). 807: 805: 803: 801: 799: 797: 795: 793: 791: 789: 667:"California Poison Control System: Salicylates" 433: 431: 429: 427: 425: 423: 34:Structure of the human uncoupling protein UCP1 1401: 1212:"Uncoupling protein 2 and metabolic diseases" 1164: 1162: 1160: 1158: 1156: 1018: 1016: 1014: 8: 101:, also serve the same uncoupling function. 1919: 1889:Mitochondrial permeability transition pore 1871: 1711: 1540: 1430: 1408: 1394: 1386: 1284: 1235: 1186: 1092: 1069:"Mitochondrial proton and electron leaks" 1040: 994: 953: 892: 769: 701: 617: 565: 505: 455: 403: 99:carbonyl cyanide m-chlorophenyl hydrazone 1884:Mitochondrial membrane transport protein 274: 29: 327: 1643:Cholesterol side-chain cleavage enzyme 540:Ruprecht, J.J.; Kunji, E.R.S. (2020). 914: 912: 57:-powered pumping of protons from the 7: 1169:Brand MD, Esteves TC (August 2005). 587: 585: 535: 533: 483: 481: 479: 477: 475: 1557:Coenzyme Q – cytochrome c reductase 1139:10.1016/j.freeradbiomed.2011.06.022 1127:Free Radical Biology & Medicine 690:The Journal of Biological Chemistry 1743:Oxoglutarate dehydrogenase complex 1678:Glycerol-3-phosphate dehydrogenase 885:10.1523/JNEUROSCI.19-23-10417.1999 25: 1688:Carnitine palmitoyltransferase II 1812:Carbamoyl phosphate synthetase I 1452:Long-chain-fatty-acid—CoA ligase 1447:Carnitine palmitoyltransferase I 1310:Biochemical Society Transactions 1673:Glutamate aspartate transporter 1210:Sreedhar A, Zhao Y (May 2017). 641:Garrett RH, Grisham CM (2013). 1790:Pyruvate dehydrogenase complex 1748:Succinyl coenzyme A synthetase 255:limiting the concentration of 1: 1360:10.1016/s0166-2236(99)01534-9 996:10.1016/s0092-8674(01)00378-6 494:Biochim Biophys Acta Bioenerg 457:10.2337/diabetes.53.2007.S130 1594:Dihydroorotate dehydrogenase 1277:10.1016/j.biochi.2016.12.016 826:Nature Reviews. Neuroscience 507:10.1016/j.bbabio.2021.148428 349:10.1016/j.neulet.2018.12.027 287:By detecting the associated 182:Maintaining body temperature 1648:Steroid 11-beta-hydroxylase 873:The Journal of Neuroscience 2227: 1822:N-Acetylglutamate synthase 1817:Ornithine transcarbamylase 1621:Glycerol phosphate shuttle 1487:monoamine neurotransmitter 1228:10.1016/j.mito.2017.03.005 1188:10.1016/j.cmet.2005.06.002 771:10.1016/j.cmet.2008.12.014 610:10.1152/physiol.00009.2020 558:10.1016/j.tibs.2019.11.001 215:Role in ATP concentrations 211:in a pH-dependent manner. 2176: 1874: 1850: 1547:oxidative phosphorylation 223:experience a decrease in 68:oxidative phosphorylation 1738:Isocitrate dehydrogenase 1616:Malate-aspartate shuttle 703:10.1074/jbc.272.39.24129 396:10.1038/sj.embor.7400532 281:electron transport chain 1785:Glutamate dehydrogenase 1572:Succinate dehydrogenase 1348:Trends in Neurosciences 488:Nicholls, D.G. (2021). 257:reactive oxygen species 165:, also known as SLC25A9 159:, also known as SLC25A8 85:) instead of producing 2181:mitochondrial diseases 1780:Aspartate transaminase 1437:fatty acid degradation 1073:Essays in Biochemistry 946:10.1126/sciadv.adh4251 284: 253:negative-feedback loop 209:guanosine triphosphate 35: 1894:Mitochondrial carrier 1770:anaplerotic reactions 1606:mitochondrial shuttle 1584:pyrimidine metabolism 598:Physiology (Bethesda) 278: 221:pancreatic beta cells 188:brown adipose tissues 91:Eastern skunk cabbage 72:mitochondrial carrier 33: 27:Mitochondrial protein 2206:Cellular respiration 1901:Translocator protein 1758:Malate dehydrogenase 1653:Aldosterone synthase 1042:10.1210/en.2003-0667 337:Neuroscience Letters 271:Functions in neurons 174:UCP5, also known as 168:UCP4, also known as 149:UCP1, also known as 131:brown adipose tissue 59:mitochondrial matrix 1513:Intermembrane space 938:2023SciA....9H4251J 546:Trends Biochem. Sci 450:(suppl 1): S130-5. 18:Uncoupling proteins 1868:Other/to be sorted 1833:alcohol metabolism 1693:Uncoupling protein 1567:NADH dehydrogenase 1322:10.1042/bst0290812 1085:10.1042/bse0470053 285: 40:uncoupling protein 36: 2201:Membrane proteins 2188: 2187: 2172: 2171: 1915:Mitochondrial DNA 1909: 1908: 1863: 1862: 1718:citric acid cycle 1701: 1700: 1507: 1506: 1499:Monoamine oxidase 652:978-1-133-10879-5 95:2,4-dinitrophenol 16:(Redirected from 2218: 2052: 2027: 1997: 1977: 1927: 1920: 1872: 1835: 1805: 1773: 1728:Citrate synthase 1721: 1712: 1666: 1636: 1609: 1587: 1550: 1541: 1521:Adenylate kinase 1492: 1468: 1440: 1431: 1410: 1403: 1396: 1387: 1380: 1379: 1340: 1334: 1333: 1305: 1299: 1298: 1288: 1256: 1250: 1249: 1239: 1207: 1201: 1200: 1190: 1166: 1151: 1150: 1122: 1107: 1106: 1096: 1064: 1055: 1054: 1044: 1020: 1009: 1008: 998: 974: 968: 967: 957: 932:(22): eadh4251. 916: 907: 906: 896: 879:(23): 10417–27. 864: 858: 857: 821: 784: 783: 773: 749: 743: 742: 722: 716: 715: 705: 696:(39): 24129–32. 681: 675: 674: 669:. Archived from 663: 657: 656: 638: 632: 631: 621: 589: 580: 579: 569: 537: 528: 527: 509: 485: 470: 469: 459: 435: 418: 417: 407: 375: 369: 368: 332: 316:Uncoupling agent 74:(SLC25) family. 21: 2226: 2225: 2221: 2220: 2219: 2217: 2216: 2215: 2191: 2190: 2189: 2184: 2168: 2048: 2043: 2023: 2018: 1993: 1988: 1973: 1968: 1923: 1905: 1859: 1846: 1831: 1826: 1799: 1794: 1767: 1762: 1715: 1697: 1662: 1657: 1633:steroidogenesis 1630: 1625: 1603: 1598: 1581: 1576: 1544: 1530: 1526:Creatine kinase 1503: 1489: 1484: 1479: 1461: 1456: 1434: 1420: 1414: 1384: 1383: 1342: 1341: 1337: 1316:(Pt 6): 812–7. 1307: 1306: 1302: 1258: 1257: 1253: 1209: 1208: 1204: 1175:Cell Metabolism 1168: 1167: 1154: 1124: 1123: 1110: 1066: 1065: 1058: 1035:(11): 5014–21. 1022: 1021: 1012: 976: 975: 971: 918: 917: 910: 866: 865: 861: 838:10.1038/nrn1767 823: 822: 787: 758:Cell Metabolism 751: 750: 746: 724: 723: 719: 683: 682: 678: 665: 664: 660: 653: 640: 639: 635: 591: 590: 583: 539: 538: 531: 487: 486: 473: 437: 436: 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1113: 1109: 1104: 1100: 1095: 1090: 1086: 1082: 1078: 1074: 1070: 1063: 1061: 1057: 1052: 1048: 1043: 1038: 1034: 1030: 1029:Endocrinology 1026: 1019: 1017: 1015: 1011: 1006: 1002: 997: 992: 989:(6): 745–55. 988: 984: 980: 973: 970: 965: 961: 956: 951: 947: 943: 939: 935: 931: 927: 923: 915: 913: 909: 904: 900: 895: 890: 886: 882: 878: 874: 870: 863: 860: 855: 851: 847: 843: 839: 835: 831: 827: 820: 818: 816: 814: 812: 810: 808: 806: 804: 802: 800: 798: 796: 794: 792: 790: 786: 781: 777: 772: 767: 763: 759: 755: 748: 745: 740: 736: 732: 728: 721: 718: 713: 709: 704: 699: 695: 691: 687: 680: 677: 672: 668: 662: 659: 654: 648: 644: 637: 634: 629: 625: 620: 615: 611: 607: 603: 599: 595: 588: 586: 582: 577: 573: 568: 563: 559: 555: 551: 547: 543: 536: 534: 530: 525: 521: 517: 513: 508: 503: 500:(7): 148428. 499: 495: 491: 484: 482: 480: 478: 476: 472: 467: 463: 458: 453: 449: 445: 441: 434: 432: 430: 428: 426: 424: 420: 415: 411: 406: 401: 397: 393: 389: 385: 381: 374: 371: 366: 362: 358: 354: 350: 346: 342: 338: 331: 328: 321: 317: 314: 313: 309: 307: 304: 300: 298: 292: 290: 282: 277: 270: 268: 265: 262: 258: 254: 246: 244: 242: 238: 234: 230: 226: 222: 214: 212: 210: 204: 200: 197: 196:knockout mice 193: 189: 181: 177: 173: 171: 167: 164: 161: 158: 155: 152: 148: 147: 146: 140: 138: 136: 132: 124: 122: 120: 116: 112: 108: 104: 100: 96: 92: 88: 84: 83:thermogenesis 80: 75: 73: 69: 65: 60: 56: 53:generated by 52: 49: 45: 41: 32: 19: 2178: 2025:ATP synthase 1832: 1800: 1768: 1716: 1692: 1683:ATP synthase 1663: 1631: 1604: 1582: 1562:Cytochrome c 1545: 1485: 1475:Kynureninase 1462: 1435: 1351: 1347: 1338: 1313: 1309: 1303: 1268: 1264: 1254: 1219: 1215: 1205: 1181:(2): 85–93. 1178: 1174: 1130: 1126: 1076: 1072: 1032: 1028: 986: 982: 972: 929: 925: 876: 872: 862: 829: 825: 764:(2): 203–9. 761: 757: 747: 733:(1): 41–57. 730: 726: 720: 693: 689: 679: 671:the original 661: 643:Biochemistry 642: 636: 601: 597: 549: 545: 497: 493: 447: 443: 387: 384:EMBO Reports 383: 373: 340: 336: 330: 305: 301: 293: 286: 266: 250: 237:mitochondria 218: 205: 201: 185: 144: 135:ATP Synthase 128: 76: 64:ATP synthase 43: 39: 37: 1975:Complex III 1344:Nicholls DG 1222:: 135–140. 343:: 140–145. 233:hippocampus 192:hibernators 151:thermogenin 115:epinephrine 79:hibernation 2211:Uncouplers 2195:Categories 1995:Complex IV 1802:urea cycle 1490:metabolism 1466:metabolism 1464:tryptophan 322:References 261:activation 153:or SLC25A7 141:In mammals 2179:see also 1925:Complex I 1733:Aconitase 1271:: 35–50. 1265:Biochimie 1079:: 53–67. 524:232774851 1879:Frataxin 1753:Fumarase 1419:proteins 1376:11564585 1368:10717676 1330:11709080 1295:28057583 1246:28351676 1197:16098826 1147:21762777 1103:20533900 1051:12960023 1005:11440717 964:37256948 955:10413660 903:10575039 854:14840725 846:16224498 780:19187776 739:11850613 628:32783608 576:31787485 516:33798544 466:14749278 444:Diabetes 414:16179945 365:56595077 357:30582970 310:See also 176:SLC25A14 170:SLC25A27 51:gradient 2039:MT-ATP8 2034:MT-ATP6 1954:MT-ND4L 1286:5395090 1237:5477468 1094:3122475 934:Bibcode 926:Sci Adv 894:6782406 712:9305858 619:7611780 567:7611774 405:1369193 229:insulin 203:cells. 125:History 2144:MT-TS2 2139:MT-TS1 2109:MT-TL2 2104:MT-TL1 2014:MT-CO3 2009:MT-CO2 2004:MT-CO1 1984:MT-CYB 1964:MT-ND6 1959:MT-ND5 1949:MT-ND4 1944:MT-ND3 1939:MT-ND2 1934:MT-ND1 1707:Matrix 1374:  1366:  1328:  1293:  1283:  1244:  1234:  1195:  1145:  1101:  1091:  1049:  1003:  962:  952:  901:  891:  852:  844:  778:  737:  710:  649:  626:  616:  574:  564:  522:  514:  464:  412:  402:  363:  355:  119:leptin 117:, and 48:proton 2164:MT-TY 2159:MT-TW 2154:MT-TV 2149:MT-TT 2134:MT-TR 2129:MT-TQ 2124:MT-TP 2119:MT-TN 2114:MT-TM 2099:MT-TK 2094:MT-TI 2089:MT-TH 2084:MT-TG 2079:MT-TF 2074:MT-TE 2069:MT-TD 2064:MT-TC 2059:MT-TA 1855:PMPCB 1842:ALDH2 1664:other 1372:S2CID 850:S2CID 520:S2CID 361:S2CID 2050:tRNA 1364:PMID 1326:PMID 1291:PMID 1242:PMID 1193:PMID 1143:PMID 1099:PMID 1047:PMID 1001:PMID 983:Cell 960:PMID 899:PMID 842:PMID 776:PMID 735:PMID 708:PMID 647:ISBN 624:PMID 572:PMID 512:PMID 498:1862 462:PMID 410:PMID 353:PMID 289:mRNA 163:UCP3 157:UCP2 97:and 55:NADH 1356:doi 1318:doi 1281:PMC 1273:doi 1269:134 1232:PMC 1224:doi 1183:doi 1135:doi 1089:PMC 1081:doi 1037:doi 1033:144 991:doi 987:105 950:PMC 942:doi 889:PMC 881:doi 834:doi 766:doi 698:doi 694:272 614:PMC 606:doi 562:PMC 554:doi 502:doi 452:doi 400:PMC 392:doi 345:doi 341:696 241:ADP 225:ATP 190:of 137:). 87:ATP 44:UCP 38:An 2197:: 1370:. 1362:. 1352:23 1350:. 1324:. 1314:29 1312:. 1289:. 1279:. 1267:. 1263:. 1240:. 1230:. 1220:34 1218:. 1214:. 1191:. 1177:. 1173:. 1155:^ 1141:. 1131:51 1129:. 1111:^ 1097:. 1087:. 1077:47 1075:. 1071:. 1059:^ 1045:. 1031:. 1027:. 1013:^ 999:. 985:. 981:. 958:. 948:. 940:. 928:. 924:. 911:^ 897:. 887:. 877:19 875:. 871:. 848:. 840:. 828:. 788:^ 774:. 760:. 756:. 731:93 729:. 706:. 692:. 688:. 622:. 612:. 602:35 600:. 596:. 584:^ 570:. 560:. 550:45 548:. 544:. 532:^ 518:. 510:. 496:. 492:. 474:^ 460:. 448:53 446:. 442:. 422:^ 408:. 398:. 386:. 382:. 359:. 351:. 339:. 283:. 121:. 113:, 109:, 1409:e 1402:t 1395:v 1378:. 1358:: 1332:. 1320:: 1297:. 1275:: 1248:. 1226:: 1199:. 1185:: 1179:2 1149:. 1137:: 1105:. 1083:: 1053:. 1039:: 1007:. 993:: 966:. 944:: 936:: 930:9 905:. 883:: 856:. 836:: 830:6 782:. 768:: 762:9 741:. 714:. 700:: 655:. 630:. 608:: 578:. 556:: 526:. 504:: 468:. 454:: 416:. 394:: 388:6 367:. 347:: 42:( 20:)

Index

Uncoupling proteins

proton
gradient
NADH
mitochondrial matrix
ATP synthase
oxidative phosphorylation
mitochondrial carrier
hibernation
thermogenesis
ATP
Eastern skunk cabbage
2,4-dinitrophenol
carbonyl cyanide m-chlorophenyl hydrazone
Salicylic acid
thyroid hormone
norepinephrine
epinephrine
leptin
brown adipose tissue
ATP Synthase
thermogenin
UCP2
UCP3
SLC25A27
SLC25A14
brown adipose tissues
hibernators
knockout mice

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