This entry represents the C-terminal alpha helical bundle domain. The eukaryotic GINS complex is essential for the initiation and elongation phases of DNA replication [1-3]. It consists of four paralogous protein subunits (Sld5, Psf1, Psf2 and Psf3) ...
This entry represents the C-terminal alpha helical bundle domain. The eukaryotic GINS complex is essential for the initiation and elongation phases of DNA replication [1-3]. It consists of four paralogous protein subunits (Sld5, Psf1, Psf2 and Psf3), all of which are included in this family. The GINS complex is conserved from yeast to humans, and has been shown in human to bind directly to DNA primase [4].
This entry represents the C-terminal domain (B domain) of the archaeal Gins15 protein, a core subunit of the GINS complex involved in DNA replication. This domain is predominantly composed of beta-strands and corresponds to the B domain in the AB dom ...
This entry represents the C-terminal domain (B domain) of the archaeal Gins15 protein, a core subunit of the GINS complex involved in DNA replication. This domain is predominantly composed of beta-strands and corresponds to the B domain in the AB domain arrangement of Gins15 [1] . The C-terminal B domain is both necessary and sufficient for interaction with Cdc45, forming a key interface in the CG (Cdc45-GINS) complex [1]. In Sulfolobus, this interaction is critical for assembling the complete CMG (Cdc45-MCM-GINS) complex, which functions as the replicative helicase. The archaeal GINS complex contains two copies of Gins15, potentially allowing for interaction with two copies of Cdc45 through this domain, creating a more symmetrical structure than in eukaryotes [1]. The interaction mediated by this domain is essential for stimulating the helicase activity of MCM during DNA replication [1].
This entry represents the N-terminal domain (A domain) of the archaeal Gins15 protein, a core subunit of the GINS complex involved in DNA replication. This domain consists primarily of alpha-helical structures and corresponds to the A domain in the c ...
This entry represents the N-terminal domain (A domain) of the archaeal Gins15 protein, a core subunit of the GINS complex involved in DNA replication. This domain consists primarily of alpha-helical structures and corresponds to the A domain in the circularly permuted AB domain arrangement of Gins15 [2]. While the N-terminal domain does not directly interact with Cdc45, it plays an important structural role in the formation of the tetrameric archaeal GINS complex Gins15/Gins23 [1]. This domain is structurally related to portions of the eukaryotic GINS components Sld5 and Psf1 [1]. In the complete archaeal CMG (Cdc45-MCM-GINS) complex, this domain contributes to the overall architecture that is essential for the functional replicative helicase activity during DNA replication [2].
