Talk:PstI

Untitled
Hint regarding the first reference: "Error. You may have used an outdated link or have typed the address incorrectly." — Preceding unsigned comment added by 141.53.207.16 (talk • contribs) in 2011

Wiki Education Foundation-supported course assignment
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Query
Should "The proximity ot the ends in linear DNA molecule" be "The proximity of the ends in linear DNA molecule" or "The proximity to the ends in linear DNA molecule"?  Ϣere Spiel  Chequers  05:05, 10 February 2017 (UTC)

Query
The statement "The PstI restriction/modification (R/M) system has two components: a restriction enzyme that cleaves foreign DNA, and a methyltransferase which protect native DNA strands via histone methylation" seems to imply that Providencia stuartii has histones and that these may be methylated. What is the evidence that gram positive bacteria have histones and that these may be methylated? Should this refer to DNA methylation? — Preceding unsigned comment added by T H Noel Ellis (talk • contribs) 03:42, 3 March 2017 (UTC)