Studies on the role of aliovalent substitutions and their cooperative effect in Y1−x−yPrxCayBa2Cu3O7−δ system

1991 ◽  
Author(s):  
G. K. Bichile ◽  
Smita Deshmukh ◽  
D. G. Kuberkar ◽  
S. S. Shah ◽  
R. G. Kulkarni
Keyword(s):  
Cooperative Effect

scholarly journals Role of Chimeric Murine Leukemia Virusenv β-Turn Polyproline Spacers in Receptor Cooperation

2001 ◽  
Vol 75 (18) ◽  
pp. 8478-8486 ◽  
Author(s):  
Sandrine Valsesia-Wittmann
Keyword(s):  
Murine Leukemia Virus ◽  
Leukemia Virus ◽  
Cooperative Effect ◽  
Cell Surface Receptor ◽  
Moloney Murine Leukemia Virus ◽  
Binding Domains ◽  
N Terminus ◽  
Surface Receptor ◽  
Murine Leukemia

ABSTRACT We have previously reported a set of Moloney murine leukemia virus derived envelopes retargeted to the Pit-2 phosphate transporter molecule, by insertion of the Pit-2 binding domain (BD) at the N terminus of the ecotropic retroviral envelope glycoproteins (S. Valsesia-Wittmann et al., J. Virol. 70:2059-2064, 1996). The resulting chimeric envelopes share two BDs: an additional N-terminal BD (Pit-2 BD) and the BD of the ecotropic envelope (mCAT-1 BD). By inserting a variety of different amino acid spacers between the two binding domains, we showed that retroviruses can potentially use the targeted cell surface receptor Pit-2, the ecotropic retroviral receptor mCAT-1, or both receptors cooperatively for entry into target cell (S. Valsesia-Wittmann et al., EMBO J 6:1214–1223, 1997). An extreme example of receptor cooperativity was encountered when envelopes with specific proline-rich interdomain spacers (PRO spacers) were tested: both receptors had to be coexpressed at the surface of the targeted cells to cooperatively allow infection. Here, we characterized the role of PRO spacer in the cooperation of receptors. We have shown that the particular organization of the PRO spacer—a β-turn polyproline—was responsible for the cooperative effect. In the native configuration of the viruses, the structure masked the regions located downstream of the PRO spacer, thus the mCAT-1 BD. After interaction with the targeted Pit-2 receptor, the BD of the backbone envelope became accessible, and we demonstrated that interaction between the mCAT-1 BD and the mCAT-1 receptor is absolutely necessary. This interaction leads to natural fusion triggering and entry of viruses into targeted cells.

Role of polygalacturonic acid and the cooperative effect of caffeic and malic acids on the toxicity of Cu(II) towards triticale plants (× Triticosecale Wittm)

2015 ◽  
Vol 51 (5) ◽  
pp. 535-544 ◽  
Author(s):  
Giovanni Garau ◽  
Elena Mele ◽  
Paola Castaldi ◽  
Gian Paolo Lauro ◽  
Salvatore Deiana
Keyword(s):  
Cooperative Effect ◽  
Polygalacturonic Acid

scholarly journals Role of the ecto-nucleotidases in the cooperative effect of adenosine and neuropeptide-S on locomotor activity in mice

2011 ◽  
Vol 99 (4) ◽  
pp. 726-730 ◽  
Author(s):  
Robson Pacheco ◽  
Bruna Bardini Pescador ◽  
Bruna Pescador Mendonça ◽  
Saulo Fábio Ramos ◽  
Remo Guerrini ◽  
...  
Keyword(s):  
Locomotor Activity ◽  
Cooperative Effect ◽  
Neuropeptide S

Calcite passivation by gypsum: the role of the cooperative effect

CrystEngComm ◽  
2017 ◽  
Vol 19 (26) ◽  
pp. 3649-3659 ◽  
Author(s):  
Linda Pastero ◽  
Roberto Giustetto ◽  
Dino Aquilano
Keyword(s):  
Cooperative Effect

The Role of Charge Transfer in the Hydrogen Bond Cooperative Effect ofcis-N-Methylformamide Oligomers

2005 ◽  
Vol 109 (28) ◽  
pp. 6303-6308 ◽  
Author(s):  
Hongwei Tan ◽  
Wenwen Qu ◽  
Guangju Chen ◽  
Ruozhuang Liu
Keyword(s):  
Hydrogen Bond ◽  
Charge Transfer ◽  
Cooperative Effect

Role of dactinomycin in the improved survival of children with Wilms' tumor

JAMA ◽  
1966 ◽  
Vol 195 (12) ◽  
pp. 1005-1009 ◽  
Author(s):  
D. J. Fernbach
Keyword(s):  
Wilms Tumor

Role of the allergist in diagnosis and management of patients with uveitis

JAMA ◽  
1966 ◽  
Vol 195 (3) ◽  
pp. 167-172 ◽  
Author(s):  
T. E. Van Metre
Keyword(s):  
Diagnosis And Management

The power of norms to sway fused group members

2018 ◽  
Vol 41 ◽  
Author(s):  
Winnifred R. Louis ◽  
Craig McGarty ◽  
Emma F. Thomas ◽  
Catherine E. Amiot ◽  
Fathali M. Moghaddam
Keyword(s):  
Evolutionary Anthropology ◽  
Normative Systems ◽  
Violent Extremism ◽  
Identity Fusion ◽  
Group Members

AbstractWhitehouse adapts insights from evolutionary anthropology to interpret extreme self-sacrifice through the concept of identity fusion. The model neglects the role of normative systems in shaping behaviors, especially in relation to violent extremism. In peaceful groups, increasing fusion will actually decrease extremism. Groups collectively appraise threats and opportunities, actively debate action options, and rarely choose violence toward self or others.

Elaborating the role of reflection and individual differences in the study of folk-economic beliefs

2018 ◽  
Vol 41 ◽  
Author(s):  
Kevin Arceneaux
Keyword(s):  
Decision Making ◽  
Individual Differences ◽  
Cognitive Processes ◽  
Evolutionary History ◽  
Behavioral Responses ◽  
History Of ◽  
Economic Beliefs

AbstractIntuitions guide decision-making, and looking to the evolutionary history of humans illuminates why some behavioral responses are more intuitive than others. Yet a place remains for cognitive processes to second-guess intuitive responses – that is, to be reflective – and individual differences abound in automatic, intuitive processing as well.

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