My recent submission to Proceedings of the National Academy of Sciences (PNAS) was rejected after the first round of reviews. The journal suggested transfer of the manuscript (after revision and response to reviewers) to its sister open-access journal PNAS Nexus. I looked up the details and found the following information:
PNAS Nexus was started in 2022 as a open-access sister to PNAS.
It charges a article processing fee of ~4000 USD from developed countries.
It seems to be a similar venture as in the case of Science Advances vs. Science.
The Clarivate impact factor report of 2023 gives it an impact factor of 2.2, although the journal website states its first impact factor will be revealed in 2024 summer.
What is the journal processing steps after transfer of a submission already reviewed by PNAS? Do they send for review again? Or do they decide on the basis of previous reviews directly?