TY - JOUR
T1 - Structural Analysis of the Outer Membrane Lipoprotein BBA14 (OrfD) and the Corresponding Paralogous Gene Family 143 (PFam143) from Borrelia burgdorferi
AU - Akopjana, Inara
AU - Brangulis, Kalvis
N1 - Funding Information:
Funding: This research was funded by the LZP grant Nr. lzp-2020/2-0378 “Structural and immunological characterization of potential Lyme disease vaccine candidates”.
Funding Information:
This research was funded by the LZP grant Nr. lzp-2020/2-0378 “Structural and immunological characterization of potential Lyme disease vaccine candidates”.
Publisher Copyright:
© 2022 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2022/2
Y1 - 2022/2
N2 - Lyme disease is caused by the spirochete Borrelia burgdorferi, which can be transmitted to a mammalian host when infected Ixodes ticks feed. B. burgdorferi has many unique characteristics, such as the presence of at least 130 different lipoproteins, which is considerably more than any other known bacterium. Moreover, the B. burgdorferi genome is relatively small (1.5 Mbp) but at the same time it is quite complicated because it comprises a chromosome and 21 linear and circular plasmids. B. burgdorferi is also rich in paralogous proteins; in total, there are approximately 150 paralogous gene families. Equally important is the fact that there is still no vaccine against the Lyme disease. To better understand the role of lipoproteins in this unique bacterium, we solved the crystal structure of the outer membrane lipoprotein BBA14, which is coded on the relatively stable linear plasmid 54 (lp54). BBA14 does not share sequence identity with any other known proteins, and it is one of the ten members of the paralogous gene family 143 (PFam143). PFam143 members are known as orfD proteins from a genetic locus, designated 2.9. The obtained crystal structure revealed similarity to the antitoxin from the epsilon/zeta toxin-antitoxin system. The results of this study help to characterize BBA14 and to clarify the role of PFam143 in the lifecycle of B. burgdorferi.
AB - Lyme disease is caused by the spirochete Borrelia burgdorferi, which can be transmitted to a mammalian host when infected Ixodes ticks feed. B. burgdorferi has many unique characteristics, such as the presence of at least 130 different lipoproteins, which is considerably more than any other known bacterium. Moreover, the B. burgdorferi genome is relatively small (1.5 Mbp) but at the same time it is quite complicated because it comprises a chromosome and 21 linear and circular plasmids. B. burgdorferi is also rich in paralogous proteins; in total, there are approximately 150 paralogous gene families. Equally important is the fact that there is still no vaccine against the Lyme disease. To better understand the role of lipoproteins in this unique bacterium, we solved the crystal structure of the outer membrane lipoprotein BBA14, which is coded on the relatively stable linear plasmid 54 (lp54). BBA14 does not share sequence identity with any other known proteins, and it is one of the ten members of the paralogous gene family 143 (PFam143). PFam143 members are known as orfD proteins from a genetic locus, designated 2.9. The obtained crystal structure revealed similarity to the antitoxin from the epsilon/zeta toxin-antitoxin system. The results of this study help to characterize BBA14 and to clarify the role of PFam143 in the lifecycle of B. burgdorferi.
KW - Ixodes ticks
KW - Lyme borreliosis
KW - Spirochetes
KW - X-ray crystallography
UR - http://www.scopus.com/inward/record.url?scp=85124033353&partnerID=8YFLogxK
U2 - 10.3390/pathogens11020154
DO - 10.3390/pathogens11020154
M3 - Article
AN - SCOPUS:85124033353
SN - 2076-0817
VL - 11
JO - Pathogens
JF - Pathogens
IS - 2
M1 - 154
ER -
