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Plasmid Segregation Mechanisms
Annual Review of Genetics, 2005Bacterial plasmids encode partitioning (par) loci that ensure ordered plasmid segregation prior to cell division. par loci come in two types: those that encode actin-like ATPases and those that encode deviant Walker-type ATPases. ParM, the actin-like ATPase of plasmid R1, forms dynamic filaments that segregate plasmids paired at mid-cell to daughter ...
Ebersbach G, Gerdes K
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2008
Many antigen receptors of the immune system belong to the family of multichain immune recognition receptors (MIRRs). Binding of ligand (antigen) to MIRR results in receptor phosphorylation, triggering downstream signaling pathways and cellular activation. How ligand binding induces this phosphorylation is not yet understood. In this Chapter, we discuss
Dopfer, Elaine P. +5 more
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Many antigen receptors of the immune system belong to the family of multichain immune recognition receptors (MIRRs). Binding of ligand (antigen) to MIRR results in receptor phosphorylation, triggering downstream signaling pathways and cellular activation. How ligand binding induces this phosphorylation is not yet understood. In this Chapter, we discuss
Dopfer, Elaine P. +5 more
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Good segregation, bad segregation
Planning Perspectives, 1996Much of the literature on segregation is underlain by an implicit model which argues that groups start highly segregated in inner city locations and disperse over time. Parallel and related to this spatial pattern is the social process of assimilation. Groups start highly segregated and unassimilated and become dispersed and assimilated over time.
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Segregated Schools in Segregated Societies
Childhood, 2006In segregated societies such as Northern Ireland, schools may become sites of risk rather than sites of learning. This is particularly likely to be the case in interface areas, which are demarcated by peace– lines and other symbolic boundaries. Drawing on maps and focus group discussions with teenagers from interface areas in North Belfast, the ...
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School Segregation and Residential Segregation
1980The school desegregation cases of the 1970s brought the Supreme Court face to face with difficult problems of urban racial change. In dramatic contrast with the early southern cases, where one only needed to read the state code to find proof of unconstitutional action and where one could often repair the damage with a relatively simple and self-evident
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