Abstract
Primase and GINS are essential factors for chromosomal DNA replication in eukaryotic and archaeal cells. Here we describe a previously undetected relationship between the C-terminal domain of the catalytic subunit (PriS) of archaeal primase and the B-domains of the archaeo-eukaryotic GINS proteins in the form of a conserved structural domain comprising a three-stranded antiparallel beta-sheet adjacent to an alpha-helix and a two-stranded beta-sheet or hairpin. The presence of a shared domain in archaeal PriS and GINS proteins, the genes for which are often found adjacent on the chromosome, suggests simple mechanisms for the evolution of these proteins.
Original language | English |
---|---|
Pages (from-to) | 17 |
Number of pages | 6 |
Journal | Biology Direct |
Volume | 5 |
Issue number | 1 |
DOIs | |
Publication status | Published - 12 Apr 2010 |