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Leso Bernardo Henrique Cortimiglia Marcelo Nogueira Ghezzi Antonio 《Cognition, Technology & Work》2023,25(1):151-179
Cognition, Technology & Work - Contributing to the scarce literature on how companies can deal with their business model of digital transition, this work explores the digital transformation... 相似文献
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Lima Igor Silva Jefferson Miranda Breno Pinto Gustavo d’Amorim Marcelo 《Software Quality Journal》2021,29(1):129-158
Software Quality Journal - JavaScript is a popular programming language today with several implementations competing for market dominance. Although a specification document and a conformance test... 相似文献
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Galindo Fernando Shintate Bellotte João Leonardo Miranda Santini José Mateus Kondo Buzetti Salatiér Rosa Poliana Aparecida Leonel Jalal Arshad Teixeira Filho Marcelo Carvalho Minhoto 《Nutrient Cycling in Agroecosystems》2021,120(2):205-221
Nutrient Cycling in Agroecosystems - Sustainable zinc (Zn) management strategies are needed to improve cereal yield production, particularly under tropical savannah conditions. Inoculation with... 相似文献
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Ronny Petterson dos Santos Araújo Renato Kaylan Alves Frana Napoleo Fonseca Valadares Andrea Queiroz Maranho Marcelo Macedo Brigido 《International journal of molecular sciences》2021,22(9)
Autoimmunity may have its origins of early repertoire selection in developmental B cells. Such a primary repertoire is probably shaped by selecting B cells that can efficiently perform productive signaling, stimulated by self-antigens in the bone marrow, such as DNA. In support of that idea, we previously found a V segment from VH10 family that can form antibodies that bind to DNA independent of CDR3 usage. In this paper we designed four antibody fragments in a novel single-chain pre-BCR (scpre-BCR) format containing germinal V gene segments from families known to bind DNA (VH10) or not (VH4) connected to a murine surrogate light chain (SLC), lacking the highly charged unique region (UR), by a hydrophilic peptide linker. We also tested the influence of CDR2 on DNA reactivity by shuffling the CDR2 loop. The scpre-BCRs were expressed in bacteria. VH10 bearing scpre-BCR could bind DNA, while scpre-BCR carrying the VH4 segment did not. The CDR2 loop shuffling hampered VH10 reactivity while displaying a gain-of-function in the nonbinding VH4 germline. We modeled the binding sites demonstrating the conservation of a positivity charged pocket in the VH10 CDR2 as the possible cross-reactive structural element. We presented evidence of DNA reactivity hardwired in a V gene, suggesting a structural mechanism for innate autoreactivity. Therefore, while autoreactivity to DNA can lead to autoimmunity, efficiently signaling for B cell development is likely a trade-off mechanism leading to the selection of potentially autoreactive repertoires. 相似文献
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