HerA is a DNA helicase able to utilise either 3' or 5' single-stranded DNA extensions for loading and subsequent DNA duplex unwinding [1]. It forms a complex with NurA nuclease, this complex has the 5'-3' DNA end resection activity and is essential for cell viability in the crenarchaeon Sulfolobus islandicus [2]. This entry represents the C-terminal domain of HerA which seems to be involved in the conversion of ATP hydrolysis into DNA translocation [3].

1: A bipolar DNA helicase gene, herA, clusters with rad50, mre11 and nurA genes in thermophilic archaea. Constantinesco F, Forterre P, Koonin EV, Aravind L, Elie C; Nucleic Acids Res. 2004;32:1439-1447. PMID:14990749

2: Efficient 5'-3' DNA end resection by HerA and NurA is essential for cell viability in the crenarchaeon Sulfolobus islandicus. Huang Q, Liu L, Liu J, Ni J, She Q, Shen Y; BMC Mol Biol. 2015;16:2. PMID:25880130

3: Structure of the hexameric HerA ATPase reveals a mechanism of translocation-coupled DNA-end processing in archaea. Rzechorzek NJ, Blackwood JK, Bray SM, Maman JD, Pellegrini L, Robinson NP; Nat Commun. 2014;5:5506. PMID:25420454