The population frequency of human mitochondrial DNA variants is highly dependent upon mutational bias.
The population frequency of human mitochondrial DNA variants is highly dependent upon mutational bias.
复制标题
人线粒体DNA变异的种群频率高度取决于突变偏差。
DOI：
10.1242/bio.059072
复制
发表时间：
2021-10-15
期刊：
影响因子：
2.4
通讯作者：
Dunn CD
中科院分区：
文献类型：
--
作者：
Dunn CD
下一代测序可以快速揭示可能与遗传性疾病相关的遗传变异。随着包含人类变异的数据库不断扩大，罕见的变异一直受到高度关注，因为如果遗传变化导致适应性或繁殖力丧失，则变异的频率预计会很低。然而，在寻找与疾病相关的基因组变化时使用变异频率仍然非常具有挑战性。在这里，我使用HelixMT数据库探索了选择在控制人类变异频率中的作用，该数据库包含数十万个线粒体DNA（mtDNA）样本。我发现在这项大型研究中从未遇到过大量对蛋白质序列没有影响的同义替换，而许多其他同义变化的频率非常低。对人类和哺乳动物mtDNA数据集的进一步分析表明，同义变体的群体频率主要由突变偏好决定，而不是由作用于核苷酸选择的强选择决定。我的工作有重要的影响，延伸到解释的非同义替换的变异频率。总结：人类线粒体变异与突变偏差密切相关。在使用变异频率预测致病性时，应考虑这些偏差。我们发现的重要性可能会扩展到其他基因组背景。
Next-generation sequencing can quickly reveal genetic variation potentially linked to heritable disease. As databases encompassing human variation continue to expand, rare variants have been of high interest, since the frequency of a variant is expected to be low if the genetic change leads to a loss of fitness or fecundity. However, the use of variant frequency when seeking genomic changes linked to disease remains very challenging. Here, I explored the role of selection in controlling human variant frequency using the HelixMT database, which encompasses hundreds of thousands of mitochondrial DNA (mtDNA) samples. I found that a substantial number of synonymous substitutions, which have no effect on protein sequence, were never encountered in this large study, while many other synonymous changes are found at very low frequencies. Further analyses of human and mammalian mtDNA datasets indicate that the population frequency of synonymous variants is predominantly determined by mutational biases rather than by strong selection acting upon nucleotide choice. My work has important implications that extend to the interpretation of variant frequency for non-synonymous substitutions. Summary: Human mitochondrial variation is tightly linked to mutational biases. These biases should be taken into account when using variant frequencies to predict pathogenicity. The significance of our findings is likely to extend to other genomic contexts.
登录
查看更多内容
影响因子：
30.8
作者：
Luo Y;de Lange KM;Jostins L;Moutsianas L;Randall J;Kennedy NA;Lamb CA;McCarthy S;Ahmad T;Edwards C;Serra EG;Hart A;Hawkey C;Mansfield JC;Mowat C;Newman WG;Nichols S;Pollard M;Satsangi J;Simmons A;Tremelling M;Uhlig H;Wilson DC;Lee JC;Prescott NJ;Lees CW;Mathew CG;Parkes M;Barrett JC;Anderson CA
通讯作者：
Anderson CA
影响因子：
64.8
作者：
Fuchsberger, Christian;Flannick, Jason;Teslovich, Tanya M.;Mahajan, Anubha;Agarwala, Vineeta;Gaulton, Kyle J.;Ma, Clement;Fontanillas, Pierre;Moutsianas, Loukas;McCarthy, Davis J.;Rivas, Manuel A.;Perry, John R. B.;Sim, Xueling;Blackwell, Thomas W.;Robertson, Neil R.;Rayner, N. William;Cingolani, Pablo;Locke, Adam E.;Tajes, Juan Fernandez;Highland, Heather M.;Dupuis, Josee;Chines, Peter S.;Lindgren, Cecilia M.;Hartl, Christopher;Jackson, Anne U.;Chen, Han;Huyghe, Jeroen R.;van de Bunt, Martijn;Pearson, Richard D.;Kumar, Ashish;Mueller-Nurasyid, Martina;Grarup, Niels;Stringham, Heather M.;Gamazon, Eric R.;Lee, Jaehoon;Chen, Yuhui;Scott, Robert A.;Below, Jennifer E.;Chen, Peng;Huang, Jinyan;Go, Min Jin;Stitzel, Michael L.;Pasko, Dorota;Parker, Stephen C. J.;Varga, Tibor V.;Green, Todd;Beer, Nicola L.;Day-Williams, Aaron G.;Ferreira, Teresa;Fingerlin, Tasha;Horikoshi, Momoko;Hu, Cheng;Huh, Iksoo;Ikram, Mohammad Kamran;Kim, Bong-Jo;Kim, Yongkang;Kim, Young Jin;Kwon, Min-Seok;Lee, Juyoung;Lee, Selyeong;Lin, Keng-Han;Maxwell, Taylor J.;Nagai, Yoshihiko;Wang, Xu;Welch, Ryan P.;Yoon, Joon;Zhang, Weihua;Barzilai, Nir;Voight, Benjamin F.;Han, Bok-Ghee;Jenkinson, Christopher P.;Kuulasmaa, Teemu;Kuusisto, Johanna;Manning, Alisa;Ng, Maggie C. Y.;Palmer, Nicholette D.;Balkau, Beverley;Stancakova, Alena;Abboud, Hanna E.;Boeing, Heiner;Giedraitis, Vilmantas;Prabhakaran, Dorairaj;Gottesman, Omri;Scott, James;Carey, Jason;Kwan, Phoenix;Grant, George;Smith, Joshua D.;Neale, Benjamin M.;Purcell, Shaun;Butterworth, Adam S.;Howson, Joanna M. M.;Lee, Heung Man;Lu, Yingchang;Kwak, Soo-Heon;Zhao, Wei;Danesh, John;Lam, Vincent K. L.;Park, Kyong Soo;Saleheen, Danish;So, Wing Yee;Tam, Claudia H. T.;Afzal, Uzma;Aguilar, David;Arya, Rector;Aung, Tin;Chan, Edmund;Navarro, Carmen;Cheng, Ching-Yu;Palli, Domenico;Correa, Adolfo;Curran, Joanne E.;Rybin, Denis;Farook, Vidya S.;Fowler, Sharon P.;Freedman, Barry I.;Griswold, Michael;Hale, Daniel Esten;Hicks, Pamela J.;Khor, Chiea-Chuen;Kumar, Satish;Lehne, Benjamin;Thuillier, Dorothee;Lim, Wei Yen;Liu, Jianjun;van der Schouw, Yvonne T.;Loh, Marie;Musani, Solomon K.;Puppala, Sobha;Scott, William R.;Yengo, Loic;Tan, Sian-Tsung;Taylor, Herman A., Jr.;Thameem, Farook;Wilson, Gregory, Sr.;Wong, Tien Yin;Njolstad, Pal Rasmus;Levy, Jonathan C.;Mangino, Massimo;Bonnycastle, Lori L.;Schwarzmayr, Thomas;Fadista, Joao;Surdulescu, Gabriela L.;Herder, Christian;Groves, Christopher J.;Wieland, Thomas;Bork-Jensen, Jette;Brandslund, Ivan;Christensen, Cramer;Koistinen, Heikki A.;Doney, Alex S. F.;Kinnunen, Leena;Esko, Tonu;Farmer, Andrew J.;Hakaste, Liisa;Hodgkiss, Dylan;Kravic, Jasmina;Lyssenko, Valeriya;Hollensted, Mette;Jorgensen, Marit E.;Jorgensen, Torben;Ladenvall, Claes;Justesen, Johanne Marie;Karajamaki, Annemari;Kriebel, Jennifer;Rathmann, Wolfgang;Lannfelt, Lars;Lauritzen, Torsten;Narisu, Narisu;Linneberg, Allan;Melander, Olle;Milani, Lili;Neville, Matt;Orho-Melander, Marju;Qi, Lu;Qi, Qibin;Roden, Michael;Rolandsson, Olov;Swift, Amy;Rosengren, Anders H.;Stirrups, Kathleen;Wood, Andrew R.;Mihailov, Evelin;Blancher, Christine;Carneiro, Mauricio O.;Maguire, Jared;Poplin, Ryan;Shakir, Khalid;Fennell, Timothy;DePristo, Mark;de Angelis, Martin Hrabe;Deloukas, Panos;Gjesing, Anette P.;Jun, Goo;Nilsson, Peter;Murphy, Jacquelyn;Onofrio, Robert;Thorand, Barbara;Hansen, Torben;Meisinger, Christa;Hu, Frank B.;Isomaa, Bo;Karpe, Fredrik;Liang, Liming;Peters, Annette;Huth, Cornelia;O'Rahilly, Stephen P.;Palmer, Colin N. A.;Pedersen, Oluf;Rauramaa, Rainer;Tuomilehto, Jaakko;Salomaa, Veikko;Watanabe, Richard M.;Syvanen, Ann-Christine;Bergman, Richard N.;Bharadwaj, Dwaipayan;Bottinger, Erwin P.;Cho, Yoon Shin;Chandak, Giriraj R.;Chan, Juliana C. N.;Chia, Kee Seng;Daly, Mark J.;Ebrahim, Shah B.;Langenberg, Claudia;Elliott, Paul;Jablonski, Kathleen A.;Lehman, Donna M.;Jia, Weiping;Ma, Ronald C. W.;Pollin, Toni I.;Sandhu, Manjinder;Tandon, Nikhil;Froguel, Philippe;Barroso, Ines;Teo, Yik Ying;Zeggini, Eleftheria;Loos, Ruth J. F.;Small, Kerrin S.;Ried, Janina S.;DeFronzo, Ralph A.;Grallert, Harald;Glaser, Benjamin;Metspalu, Andres;Wareham, Nicholas J.;Walker, Mark;Banks, Eric;Gieger, Christian;Ingelsson, Erik;Im, Hae Kyung;Illig, Thomas;Franks, Paul W.;Buck, Gemma;Trakalo, Joseph;Buck, David;Prokopenko, Inga;Magi, Reedik;Lind, Lars;Farjoun, Yossi;Owen, Katharine R.;Gloyn, Anna L.;Strauch, Konstantin;Tuomi, Tiinamaija;Kooner, Jaspal Singh;Lee, Jong-Young;Park, Taesung;Donnelly, Peter;Morris, Andrew D.;Hattersley, Andrew T.;Bowden, Donald W.;Collins, Francis S.;Atzmon, Gil;Chambers, John C.;Spector, Timothy D.;Laakso, Markku;Strom, Tim M.;Bell, Graeme I.;Blangero, John;Duggirala, Ravindranath;Tai, E. Shyong;McVean, Gilean;Hanis, Craig L.;Wilson, James G.;Seielstad, Mark;Frayling, Timothy M.;Meigs, James B.;Cox, Nancy J.;Sladek, Rob;Lander, Eric S.;Gabriel, Stacey;Burtt, Noel P.;Mohlke, Karen L.;Meitinger, Thomas;Groop, Leif;Abecasis, Goncalo;Florez, Jose C.;Scott, Laura J.;Morris, Andrew P.;Kang, Hyun Min;Boehnke, Michael;Altshuler, David;McCarthy, Mark I.
通讯作者：
McCarthy, Mark I.
影响因子：
10.7
作者：
Katoh K;Standley DM
通讯作者：
Standley DM
影响因子：
3.3
作者：
Castellana S;Vicario S;Saccone C
通讯作者：
Saccone C
影响因子：
81.5
作者：
Gorman, Grainne S.;Chinnery, Patrick F.;Turnbull, Douglass M.
通讯作者：
Turnbull, Douglass M.