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Identification and ...
Identification and evolution of dual-topology membrane proteins
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- Rapp, Mikaela (författare)
- Stockholms universitet,Institutionen för biokemi och biofysik
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Granseth, Eric (författare)
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- Seppälä, Susanna (författare)
- Stockholms universitet,Institutionen för biokemi och biofysik
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- von Heijne, Gunnar (författare)
- Stockholms universitet,Institutionen för biokemi och biofysik
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(creator_code:org_t)
- 2006-01-22
- 2006
- Engelska.
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Ingår i: Nature Structural & Molecular Biology. - : Springer Science and Business Media LLC. - 1545-9993 .- 1545-9985. ; 13:2, s. 112-116
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Integral membrane proteins are generally believed to have unique membrane topologies. However, it has been suggested that dual-topology proteins that adopt a mixture of two opposite orientations in the membrane may exist. Here we show that the membrane orientations of five dual-topology candidates identified in Escherichia coli are highly sensitive to changes in the distribution of positively charged residues, that genes in families containing dual-topology candidates occur in genomes either as pairs or as singletons and that gene pairs encode two oppositely oriented proteins whereas singletons encode dual-topology candidates. Our results provide strong support for the existence of dual-topology proteins and shed new light on the evolution of membrane-protein topology and structure.
Ämnesord
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Nyckelord
- Biochemistry
- biokemi
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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