Question: What is the main role of Ctf4 in dna replication?

Context:
In this report, interactions between human Ctf4 (hCtf4) and the replicative helicase containing the cell division cycle 45 (Cdc45)/minichromosome maintenance 2-7 (Mcm2-7)/Go, Ichi, Nii, and San (GINS) (CMG) proteins [human CMG (hCMG) complex] were examined
We demonstrate that the hCtf4-CMG complex contains a homodimeric hCtf4 and a monomeric hCMG complex and suggest that the homodimeric hCtf4 acts as a platform linking polymerase α to the hCMG complex
Drosophila Ctf4 is essential for efficient DNA replication and normal cell cycle progression
The Ctf4 protein has been shown to be a central member of the replication fork and links the replicative MCM helicase and DNA polymerase α primase
 it has been implicated as a member of a complex that promotes replication fork stability, the Fork Protection Complex (FPC), and as being important for sister chromatid cohesion
Drosophila Ctf4 is a conserved protein that interacts with members of the GINS complex, Mcm2, and Polymerase α primase
Ctf4 remains a central player in DNA replication
These data indicate that Ctf4p facilitates Mcm10p to promote the DNA replication
 hCtf4 plays an essential role in DNA replication and its ability to stimulate the replicative DNA polymerases 
Our data indicate that a complex of the GINS and Ctf4 components of the RPC is crucial to couple MCM2-7 to DNA polymerase alpha
coupling MCM2-7 to replicative polymerases is an important feature of the regulation of chromosome replication in eukaryotes, and highlight a key role for Ctf4 in this process
Ctf4 coordinates the progression of helicase and DNA polymerase alpha
Mcm10 and And-1/CTF4 recruit DNA polymerase alpha to chromatin for initiation of DNA replication
We show that And-1/Ctf4 (Chromosome transmission fidelity 4) interacts with Mcm10, which associates with MCM2-7, and with the p180 subunit of DNA pol alpha
And-1/Ctf4 is therefore a new replication initiation factor that brings together the MCM2-7 helicase and the DNA pol alpha-primase complex, analogous to the linker between helicase and primase or helicase and polymerase that is seen in the bacterial replication machinery
Mcm10 and And-1/CTF4 recruit DNA polymerase alpha to chromatin for initiation of DNA replication.
Ctf4 remains a central player in DNA replication.
Drosophila Ctf4 is essential for efficient DNA replication and normal cell cycle progression.
Influence of the human cohesion establishment factor Ctf4/AND-1 on DNA replication.
Ctf4/AND-1 is a highly conserved gene product required for both DNA replication and the establishment of sister chromatid cohesion.
In this report, we examined the mechanism of action of human Ctf4 (hCtf4) in DNA replication both in vitro and in vivo.
And-1/Ctf4 is therefore a new replication initiation factor that brings together the MCM2-7 helicase and the DNA pol alpha-primase complex, analogous to the linker between helicase and primase or helicase and polymerase that is seen in the bacterial replication machinery.
We show that cells lacking both Ctf4 and Mrc1 experience chronic activation of the DNA damage checkpoint during chromosome replication and do not complete the cell cycle.
Using in vivo RNAi knockdown of CTF4 in Drosophila we show that Ctf4 is required for viability, S phase progression, sister chromatid cohesion, endoreplication, and coping with replication stress.
We show that Ctf4 function is conserved and that Drosophila can be effectively used as a model to further probe the precise function of Ctf4 as a member of the replication fork and possible roles in development.
Chromosome transmission fidelity 4 (Ctf4) is a conserved protein required for DNA replication.
Here we show that three proteins required for sister chromatid cohesion, Eco1, Ctf4, and Ctf18, are found at, and Ctf4 travels along chromosomes with, replication forks.
A key role for Ctf4 in coupling the MCM2-7 helicase to DNA polymerase alpha within the eukaryotic replisome.

Answer: coupling MCM2-7 to replicative polymerases is an important feature of the regulation of chromosome replication in eukaryotes, and highlight a key role for Ctf4 in this processAnd-1/Ctf4 is therefore a new replication initiation factor that brings together the MCM2-7 helicase and the DNA pol alpha-primase complex, analogous to the linker between helicase and primase or helicase and polymerase that is seen in the bacterial replication machinery
Ctf4 coordinates the progression of helicase and DNA polymerase alpha.  Mcm10 and And-1/CTF4 recruit DNA polymerase alpha to chromatin for initiation of DNA replication. And-1/Ctf4 is therefore a new replication initiation factor that brings together the MCM2-7 helicase and the DNA pol alpha-primase complex, analogous to the linker between helicase and primase or helicase and polymerase that is seen in the bacterial replication machinery.
Exact answer: Coordination of the progression of helicase and DNA polymerase alpha at the eukaryotic replication fork.