Northern Fleet Project 42 and 50 ASW vessels). On 1 April 1961, the division was renamed the 2nd Anti-Submarine Warfare Division. On 1 July 1958, the Northern Fleet raised the Soviet Navy ensign over the first Soviet nuclear submarine, K-3 Leninsky Komsomol. Following the 1958 voyage of USS "Nautilus", the "Leninsky Komsomol" (named for Vladimir Lenin’s Komsomol) traveled under the Arctic ice and surfaced at the North Pole on 17 July 1962. Russian submarines have visited the North Pole region more than 300 times since then. Two nuclear submarines of the Northern Fleet made a journey under the Arctic ice cap and
Nuclear cap-binding protein complex Nuclear cap-binding protein complex Nuclear cap-binding protein complex is a RNA-binding protein which binds to the 5' cap of pre-mRNA. The cap and nuclear cap-binding protein have many functions in mRNA biogenesis including splicing, 3'-end formation by stabilizing the interaction of the 3'-end processing machinery, nuclear export and protection of the transcripts from nuclease degradation. When RNA is exported to the cytoplasm the nuclear cap-binding protein complex is replaced by cytoplasmic cap binding complex. The nuclear cap-binding complex is a functional heterodimer and composed of Cbc1/Cbc2 in yeast and CBC20/CBC80 in multicellular eukaryotes. Human nuclear cap-binding protein complex shows the