Peng Zhang;Jiawei Wang;一公 施
Princeton University;Tsinghua University
发表时间:2010-12-2
期 刊:Nature
语 言:English
U R L: http://www.scopus.com/inward/record.url?scp=78649848467&partnerID=8YFLogxK
The energy-coupling factor (ECF) transporters, responsible for vitamin uptake in prokaryotes, are a unique family of membrane transporters. Each ECF transporter contains a membrane-embedded, substrate-binding protein (known as the S component), an energy-coupling module that comprises two ATP-binding proteins (known as the A and A'2 components) and a transmembrane protein (known as the T component). The structure and transport mechanism of the ECF family remain unknown. Here we report the crystal structure of RibU, the S component of the ECF-type riboflavin transporter from Staphylococcus aureus at 3.6-Å resolution. RibU contains six transmembrane segments, adopts a previously unreported transporter fold and contains a riboflavin molecule bound to the L1 loop and the periplasmic portion of transmembrane segments 4-6. Structural analysis reveals the essential ligand-binding residues, identifies the putative transport path and, with sequence alignment, uncovers conserved structural features and suggests potential mechanisms of action among the ECF transporters.
医学与生命科学
Scopus度量
年份 | CiteScore | SJR | SNIP |
---|---|---|---|
1996 | |||
1997 | |||
1998 | |||
1999 | 15.599 | 7.187 | |
2000 | 11.917 | 6.857 | |
2001 | 9.874 | 6.767 | |
2002 | 10.114 | 7.184 | |
2003 | 11.384 | 7.492 | |
2004 | 11.222 | 7.538 | |
2005 | 10.333 | 7.199 | |
2006 | 9.702 | 7.156 | |
2007 | 10.344 | 7.097 | |
2008 | 13.17 | 7.307 | |
2009 | 15.185 | 8.234 | |
2010 | 16.465 | 8.204 | |
2011 | 53.1 | 17.598 | 8.667 |
2012 | 51 | 17.546 | 8.409 |
2013 | 50.9 | 19.69 | 8.511 |
2014 | 49.9 | 18.78 | 7.918 |
2015 | 51.6 | 19.669 | 8.08 |
2016 | 49.2 | 18.389 | 7.901 |
2017 | 53.7 | 17.875 | 8.679 |
2018 | 55.7 | 16.345 | 9.448 |
2019 | 51 | 14.047 | 8.546 |
2020 | 56.9 | 15.993 | 9.249 |
2021 | 56 |
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