Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Two Novel Amyloid Proteins, RopA and RopB, from the Root Nodule Bacterium Rhizobium leguminosarum. / Kosolapova, Anastasiia O.; Belousov, Mikhail V.; Sulatskaya, Anna I.; Belousova, Maria E.; Sulatsky, Maksim I.; Antonets, Kirill S.; Volkov, Kirill V.; Lykholay, Anna N.; Shtark, Oksana Y.; Vasileva, Ekaterina N.; Zhukov, Vladimir A.; Ivanova, Alexandra N.; Zykin, Pavel A.; Kuznetsova, Irina M.; Turoverov, Konstantin K.; Tikhonovich, Igor A.; Nizhnikov, Anton A.
в: Biomolecules, Том 9, № 11, 694, 04.11.2019.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
}
TY - JOUR
T1 - Two Novel Amyloid Proteins, RopA and RopB, from the Root Nodule Bacterium Rhizobium leguminosarum
AU - Kosolapova, Anastasiia O.
AU - Belousov, Mikhail V.
AU - Sulatskaya, Anna I.
AU - Belousova, Maria E.
AU - Sulatsky, Maksim I.
AU - Antonets, Kirill S.
AU - Volkov, Kirill V.
AU - Lykholay, Anna N.
AU - Shtark, Oksana Y.
AU - Vasileva, Ekaterina N.
AU - Zhukov, Vladimir A.
AU - Ivanova, Alexandra N.
AU - Zykin, Pavel A.
AU - Kuznetsova, Irina M.
AU - Turoverov, Konstantin K.
AU - Tikhonovich, Igor A.
AU - Nizhnikov, Anton A.
PY - 2019/11/4
Y1 - 2019/11/4
N2 - Amyloids represent protein fibrils with a highly ordered spatial structure, which not only cause dozens of incurable human and animal diseases but also play vital biological roles in Archaea, Bacteria, and Eukarya. Despite the fact that association of bacterial amyloids with microbial pathogenesis and infectious diseases is well known, there is a lack of information concerning the amyloids of symbiotic bacteria. In this study, using the previously developed proteomic method for screening and identification of amyloids (PSIA), we identified amyloidogenic proteins in the proteome of the root nodule bacterium Rhizobium leguminosarum. Among 54 proteins identified, we selected two proteins, RopA and RopB, which are predicted to have β-barrel structure and are likely to be involved in the control of plant-microbial symbiosis. We demonstrated that the full-length RopA and RopB form bona fide amyloid fibrils in vitro. In particular, these fibrils are β-sheet-rich, bind Thioflavin T (ThT), exhibit green birefringence upon staining with Congo Red (CR), and resist treatment with ionic detergents and proteases. The heterologously expressed RopA and RopB intracellularly aggregate in yeast and assemble into amyloid fibrils at the surface of Escherichia coli. The capsules of the R. leguminosarum cells bind CR, exhibit green birefringence, and contain fibrils of RopA and RopB in vivo.
AB - Amyloids represent protein fibrils with a highly ordered spatial structure, which not only cause dozens of incurable human and animal diseases but also play vital biological roles in Archaea, Bacteria, and Eukarya. Despite the fact that association of bacterial amyloids with microbial pathogenesis and infectious diseases is well known, there is a lack of information concerning the amyloids of symbiotic bacteria. In this study, using the previously developed proteomic method for screening and identification of amyloids (PSIA), we identified amyloidogenic proteins in the proteome of the root nodule bacterium Rhizobium leguminosarum. Among 54 proteins identified, we selected two proteins, RopA and RopB, which are predicted to have β-barrel structure and are likely to be involved in the control of plant-microbial symbiosis. We demonstrated that the full-length RopA and RopB form bona fide amyloid fibrils in vitro. In particular, these fibrils are β-sheet-rich, bind Thioflavin T (ThT), exhibit green birefringence upon staining with Congo Red (CR), and resist treatment with ionic detergents and proteases. The heterologously expressed RopA and RopB intracellularly aggregate in yeast and assemble into amyloid fibrils at the surface of Escherichia coli. The capsules of the R. leguminosarum cells bind CR, exhibit green birefringence, and contain fibrils of RopA and RopB in vivo.
KW - Amyloid
KW - Bacteria
KW - Fibril
KW - Microbial interaction
KW - Outer membrane protein
KW - Plant
KW - Porin
KW - Rhizobium leguminosarum
KW - Root nodule
KW - RopA
KW - RopB
KW - bacteria
KW - ALZHEIMERS-DISEASE
KW - ESCHERICHIA-COLI
KW - FUNCTIONAL PRION
KW - BIOFILM
KW - outer membrane protein
KW - FIBRILS
KW - THIOFLAVIN-T
KW - plant-microbial interaction
KW - root nodule
KW - porin
KW - FORMS
KW - fibril
KW - amyloid
KW - GENE
KW - AGGREGATION
KW - YEAST PRION
UR - http://www.scopus.com/inward/record.url?scp=85074495842&partnerID=8YFLogxK
UR - http://www.mendeley.com/research/two-novel-amyloid-proteins-ropa-ropb-root-nodule-bacterium-rhizobium-leguminosarum
U2 - 10.3390/biom9110694
DO - 10.3390/biom9110694
M3 - Article
C2 - 31690032
AN - SCOPUS:85074495842
VL - 9
JO - Biomolecules
JF - Biomolecules
SN - 2218-273X
IS - 11
M1 - 694
ER -
ID: 48318997