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X-ray diffraction studies of the structural organisation of prolamellar bodies isolated from Zea mays
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för fysiologisk botanik. Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Umeå Plant Science Centre (UPSC). (Eva Selstam)
1998 (engelsk)Inngår i: FEBS Letters, ISSN 0014-5793, E-ISSN 1873-3468, Vol. 422, nr 2, s. 252-254Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Transmission electron microscopy (TEM) indicates that maize prolamellar bodies (PLBs) are built up of tetrapodal units based on a highly convoluted but continuous lipid bilayer exhibiting diamond cubic (Fd3m) symmetry. Such lattices are often described in terms of infinite periodic minimal surfaces (IMPS) exhibiting zero net curvature and dividing the system into two identical subvolumes. IT so, X-ray diffraction measurements would bt: expected ci to index ore a double-diamond (Pn3m) lattice with a unit cell length half that of the TEM lattice. Our measurements index on a Fd3m lattice with a similar repeat distance to thr TEM images. The PLB membrane is thus inherently asymmetric, probably as the result of the distribution of membrane protein. (C) 1998 Federation of European Biochemical Societies.

sted, utgiver, år, opplag, sider
1998. Vol. 422, nr 2, s. 252-254
Emneord [en]
prolamellar body, X-ray diffraction, Schwartz surface, infinite minimal periodic surface, membrane organisation
Identifikatorer
URN: urn:nbn:se:umu:diva-44689ISI: 000071925200029OAI: oai:DiVA.org:umu-44689DiVA, id: diva2:428168
Tilgjengelig fra: 2011-06-29 Laget: 2011-06-09 Sist oppdatert: 2018-06-08

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