期刊
JOURNAL OF GENERAL PHYSIOLOGY
卷 143, 期 4, 页码 419-435出版社
ROCKEFELLER UNIV PRESS
DOI: 10.1085/jgp.201411164
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资金
- Netherlands Organisation for Scientific Research
- European Research Council
ATP-binding cassette (ABC) transporters form a large superfamily of ATP-dependent protein complexes that mediate transport of a vast array of substrates across membranes. The 14 currently available structures of ABC transporters have greatly advanced insight into the transport mechanism and revealed a tremendous structural diversity. Whereas the domains that hydrolyze ATP are structurally related in all ABC transporters, the membrane-embedded domains, where the substrates are translocated, adopt four different unrelated folds. Here, we review the structural characteristics of ABC transporters and discuss the implications of this structural diversity for mechanistic diversity.
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