Nature Structural and Molecular Biology, volume 16, issue 7, pages 725-730

Structure of a lamprey variable lymphocyte receptor in complex with a protein antigen

C.Alejandro Velikovsky 1
Lu Deng 1
Satoshi Tasumi 2
Lakshminarayan M Iyer 3
Melissa C Kerzic 1
L Aravind 3
ZEEV PANCER 2
Roy A. Mariuzza 1
Publication typeJournal Article
Publication date2009-06-21
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor16.8
ISSN15459993, 15459985
Molecular Biology
Structural Biology
Abstract
The lamprey adaptive immune system is evolutionarily distinct from ours and based on recognition by leucine-rich repeat proteins rather than antibodies. The crystal structure of a lamprey variable lymphocyte receptor in complex with a protein antigen now gives insight into how a distinct adaptive immune molecule recognizes a protein antigen. Variable lymphocyte receptors (VLRs) are leucine-rich repeat proteins that mediate adaptive immunity in jawless vertebrates. VLRs are fundamentally different from the antibodies of jawed vertebrates, which consist of immunoglobulin (Ig) domains. We determined the structure of an anti–hen egg white lysozyme (HEL) VLR, isolated by yeast display, bound to HEL. The VLR, whose affinity resembles that of IgM antibodies, uses nearly all its concave surface to bind the protein, in addition to a loop that penetrates into the enzyme active site. The VLR–HEL structure combined with sequence analysis revealed an almost perfect match between ligand-contacting positions and positions with highest sequence diversity. Thus, it is likely that we have defined the generalized antigen-binding site of VLRs. We further demonstrated that VLRs can be affinity-matured by 13-fold to affinities as high as those of IgG antibodies, making VLRs potential alternatives to antibodies for biotechnology applications.

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GOST Copy
Velikovsky C. et al. Structure of a lamprey variable lymphocyte receptor in complex with a protein antigen // Nature Structural and Molecular Biology. 2009. Vol. 16. No. 7. pp. 725-730.
GOST all authors (up to 50) Copy
Velikovsky C., Deng L., Tasumi S., Iyer L. M., Kerzic M. C., Aravind L., PANCER Z., Mariuzza R. A. Structure of a lamprey variable lymphocyte receptor in complex with a protein antigen // Nature Structural and Molecular Biology. 2009. Vol. 16. No. 7. pp. 725-730.
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.1038/nsmb.1619
UR - https://doi.org/10.1038/nsmb.1619
TI - Structure of a lamprey variable lymphocyte receptor in complex with a protein antigen
T2 - Nature Structural and Molecular Biology
AU - Velikovsky, C.Alejandro
AU - Deng, Lu
AU - Tasumi, Satoshi
AU - Iyer, Lakshminarayan M
AU - Kerzic, Melissa C
AU - Aravind, L
AU - PANCER, ZEEV
AU - Mariuzza, Roy A.
PY - 2009
DA - 2009/06/21 00:00:00
PB - Springer Nature
SP - 725-730
IS - 7
VL - 16
SN - 1545-9993
SN - 1545-9985
ER -
BibTex |
Cite this
BibTex Copy
@article{2009_Velikovsky,
author = {C.Alejandro Velikovsky and Lu Deng and Satoshi Tasumi and Lakshminarayan M Iyer and Melissa C Kerzic and L Aravind and ZEEV PANCER and Roy A. Mariuzza},
title = {Structure of a lamprey variable lymphocyte receptor in complex with a protein antigen},
journal = {Nature Structural and Molecular Biology},
year = {2009},
volume = {16},
publisher = {Springer Nature},
month = {jun},
url = {https://doi.org/10.1038/nsmb.1619},
number = {7},
pages = {725--730},
doi = {10.1038/nsmb.1619}
}
MLA
Cite this
MLA Copy
Velikovsky, C.Alejandro, et al. “Structure of a lamprey variable lymphocyte receptor in complex with a protein antigen.” Nature Structural and Molecular Biology, vol. 16, no. 7, Jun. 2009, pp. 725-730. https://doi.org/10.1038/nsmb.1619.
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