The sources are not that special, but I will post them here anyway. They lean towards biochemistry, bioinformatics and structural biology:
feeds = ("http://feeds.nature.com/nbt/rss/current",
"http://feeds.nature.com/nchembio/rss/current",
"http://feeds.nature.com/nsmb/rss/current",
"http://feeds2.feedburner.com/plosbiology/NewArticles",
"http://feeds.plos.org/ploscompbiol/NewArticles",
"http://feeds.plos.org/plosgenetics/NewArticles",
"https://www.frontiersin.org/journals/bioinformatics/rss",
"https://www.frontiersin.org/journals/molecular-biosciences/rss",
"https://www.nature.com/subjects/computational-biology-and-bioinformatics.rss",
"http://www.nature.com/subjects/protein-design.rss",
"http://www.nature.com/subjects/protein-folding.rss",
"https://www.nature.com/subjects/structural-biology.rss",
"http://online.liebertpub.com/action/showFeed?mi=cjwv&ai=su&jc=CMB&type=etoc&feed=rss",
"https://onlinelibrary.wiley.com/action/showFeed?jc=1469896x&type=etoc&feed=rss",
"https://onlinelibrary.wiley.com/action/showFeed?jc=10970134&type=etoc&feed=rss",
"https://onlinelibrary.wiley.com/action/showFeed?jc=15585646&type=etoc&feed=rss",
"https://science.sciencemag.org/rss/current.xml")
no_pubdate = ("http://rss.sciencedirect.com/publication/science/09581669",
"http://rss.sciencedirect.com/publication/science/0959440X",
"http://rss.sciencedirect.com/publication/science/13675931")
Most academic journals have RSS feeds, so it should be easier to find ones that fit your interests.