Solid-state NMR evidence for inequivalent GvpA subunits in gas vesicles.
Solid-state NMR evidence for inequivalent GvpA subunits in gas vesicles.
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DOI:
10.1016/j.jmb.2009.02.015
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发表时间:
2009-04-10
影响因子:
5.6
通讯作者:
Herzfeld J
中科院分区:
文献类型:
--
作者:
Sivertsen AC;Bayro MJ;Belenky M;Griffin RG;Herzfeld J
Gas vesicles are organelles that provide buoyancy to the aquatic microorganisms that harbor them. The gas vesicle shell consists almost exclusively of the hydrophobic 70-residue protein GvpA, arranged in an ordered array. Solid-state NMR spectra of intact, collapsed gas vesicles from the cyanobacterium Anabaena flos-aquae show duplication of certain GvpA resonances, indicating that specific sites experience at least two different local environments. Interpretation of these results in terms of an asymmetric dimer repeat unit can reconcile otherwise conflicting features of the primary, secondary, tertiary and quaternary structures of the gas vesicle protein. In particular, the asymmetric dimer can explain how the hydrogen bonds in the β–sheet portion of the molecule can be oriented optimally for strength while promoting stabilizing aromatic and electrostatic side-chain interactions among highly conserved residues and creating a large hydrophobic surface suitable for preventing water condensation inside the vesicle.
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影响因子:
4.4
作者:
BENNETT, AE;RIENSTRA, CM;GRIFFIN, RG
通讯作者:
GRIFFIN, RG
影响因子:
5.6
作者:
BLAUROCK, AE;WALSBY, AE
通讯作者:
WALSBY, AE
DOI:
10.1007/bf00412874
发表时间:
1968-01-01
期刊:
ARCHIV FUR MIKROBIOLOGIE
影响因子:
--
作者:
WALSBY, AE;EICHELBERGER, HH
通讯作者:
EICHELBERGER, HH
影响因子:
3.7
作者:
SUTER, D;ERNST, RR
通讯作者:
ERNST, RR
影响因子:
2.7
作者:
Kloepper, Kathryn D.;Zhou, Donghua H.;Rienstra, Chad M.
通讯作者:
Rienstra, Chad M.