The archaeo-eukaryotic GINS proteins and the archaeal primase catalytic subunit PriS share a common domain.

Abstract:

UNLABELLED: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. REVIEWERS:This article was reviewed by Zvi Kelman (nominated by Michael Galperin) and Kira Makarova.

journal_name

Biol Direct

journal_title

Biology direct

authors

Swiatek A,Macneill SA

doi

10.1186/1745-6150-5-17

subject

Has Abstract

pub_date

2010-04-12 00:00:00

pages

17

issn

1745-6150

pii

1745-6150-5-17

journal_volume

5

pub_type

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