7ZJC

Crystal structure (native) of outer surface protein BBA14 (OrfD) from Borrelia burgdorferi

Summary for 7ZJC

• Entry DOI: 10.2210/pdb7zjc/pdb
• Related: 7QDV
• Descriptor: BBA14 (OrfD) (2 entities in total)
• Functional Keywords: pfam143, outer surface protein, lipoprotein, membrane protein
• Biological source: Borreliella burgdorferi B31
• Total number of polymer chains: 1
• Total formula weight: 11454.38

Authors

Brangulis, K. (deposition date: 2022-04-10, release date: 2022-06-22, Last modification date: 2024-01-31)

Primary citation

Akopjana, I.,Brangulis, K.
Structural Analysis of the Outer Membrane Lipoprotein BBA14 (OrfD) and the Corresponding Paralogous Gene Family 143 (PFam143) from
Pathogens, 11:-, 2022

PubMed Abstract: Lyme disease is caused by the spirochete which can be transmitted to a mammalian host when infected ticks feed. 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 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. 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 .

PubMed: 35215098
DOI: 10.3390/pathogens11020154

Experimental method

X-RAY DIFFRACTION (1.6 Å)