Human gut microbes use multiple transporters to distinguish vitamin B₁₂ analogs and compete in the gut.
Human gut microbes use multiple transporters to distinguish vitamin B₁₂ analogs and compete in the gut.
复制标题
DOI:
10.1016/j.chom.2013.12.007
复制
发表时间:
2014-01-15
影响因子:
30.3
通讯作者:
Goodman AL
中科院分区:
文献类型:
--
作者:
Degnan PH;Barry NA;Mok KC;Taga ME;Goodman AL
Genomic and metagenomic sequencing efforts, including human microbiome projects, reveal that microbes often encode multiple systems that appear to accomplish the same task. Whether these predictions reflect actual functional redundancies is unclear. We report that the prominent human gut symbiont Bacteroides thetaiotaomicron employs three functional, homologous vitamin B12 transporters that in at least two cases confer a competitive advantage in the presence of distinct B12 analogs (corrinoids). In the mammalian gut, microbial fitness can be determined by the presence or absence of a single transporter. The total number of distinct corrinoid transporter families in the human gut microbiome likely exceeds those observed in B. thetaiotaomicron by an order of magnitude. These results demonstrate that human gut microbes use elaborate mechanisms to capture and differentiate corrinoids in vivo and that apparent redundancies observed in these genomes can instead reflect hidden specificities that determine whether a microbe will colonize its host.
登录
查看更多内容
影响因子:
30.3
作者:
Martens EC;Chiang HC;Gordon JI
通讯作者:
Gordon JI
影响因子:
64.8
作者:
Arumugam, Manimozhiyan;Raes, Jeroen;Pelletier, Eric;Le Paslier, Denis;Yamada, Takuji;Mende, Daniel R.;Fernandes, Gabriel R.;Tap, Julien;Bruls, Thomas;Batto, Jean-Michel;Bertalan, Marcelo;Borruel, Natalia;Casellas, Francesc;Fernandez, Leyden;Gautier, Laurent;Hansen, Torben;Hattori, Masahira;Hayashi, Tetsuya;Kleerebezem, Michiel;Kurokawa, Ken;Leclerc, Marion;Levenez, Florence;Manichanh, Chaysavanh;Nielsen, H. Bjorn;Nielsen, Trine;Pons, Nicolas;Poulain, Julie;Qin, Junjie;Sicheritz-Ponten, Thomas;Tims, Sebastian;Torrents, David;Ugarte, Edgardo;Zoetendal, Erwin G.;Wang, Jun;Guarner, Francisco;Pedersen, Oluf;de Vos, Willem M.;Brunak, Soren;Dore, Joel;Weissenbach, Jean;Ehrlich, S. Dusko;Bork, Peer
通讯作者:
Bork, Peer
影响因子:
3.2
作者:
DIGIROLA.PM;KADNER, RJ;BRADBEER, C
通讯作者:
BRADBEER, C
影响因子:
2.8
作者:
MOLLER, B;OSSMER, R;HIPPE, H
通讯作者:
HIPPE, H
影响因子:
39.2
作者:
BRANDT, LJ;BERNSTEIN, LH;WAGLE, A
通讯作者:
WAGLE, A