Finally, H3K9me2 marks spread across the genome, presumably in cis from sites of nucleation, to form characteristic patterns in mono-lineage cells such as CD41+CD61+ committed megakaryocytes or CD3+ T-cells [ 6].
This integrated help system consists of hundreds of red questions marks, spread throughout the system, always ready to help, when you need it.
Fuel prices have once again breached the £1 per litre mark, spreading more gloom among drivers.
Our previous T cell co-activation experiments, in which LFA-1 engagement resulted in stabilization of otherwise labile transcripts, included marked spreading when cells bound either to rICAM-1 or through activating anti-LFA-1 antibodies.
The day after, she looked again, in the half-light, and saw that the mark was spreading.
Therefore, the tissue-specific mark is spreading to more genes as cells further differentiate into the neural progenitor stage.
Thus, chromatin marks can spread into transgenes and, accordingly, transgene expression can be used as a reporter for the permissiveness of the surrounding chromatin.
The W chromosome is already inactive in early meiotic prophase, and inactive chromatin marks may spread on to the Z upon synapsis.
Vinny Testaverde pulled his right hand from his pocket for a moment, and much of it was purple, a large black and blue mark spread from palm to fingers.
The historic spread is about 170 bps and the high water mark spread was well above 500 bps.
