The phrase "and exists as a" is correct and usable in written English.
You can use it when describing the state or condition of something, often in a formal or academic context.
Example: "The substance is a gas at room temperature and exists as a colorless, odorless vapor."
Alternatives: "and is present as a" or "and takes the form of a".
The framework is built using modular object orientated technology, and exists as a distributed application running over a WAN.
Free UCK takes an α/β mononucleotide binding fold and exists as a homotetramer with 222 symmetry.
The active pharmaceutical ingredient 2-chloro-4-nitrobenzoic acid (2c4n) is a potentially novel therapy for immunodeficiency diseases as an anti-viral and anti-cancer agent, and exists as a dimorph in the solid state.
What makes Dylan different is not just the quality of his best songs, but his insistence on aligning himself to an older, deeper songwriting tradition that precedes pop and exists as a historical continuum outside our current somewhat blurred notions of culture and entertainment.
That's what happens to hydrogen sulfide, a similarly sized molecule but with its two hydrogen atoms fastened to sulfur rather than to oxygen; on our temperate world, hydrogen sulfide has long since reached its boiling point and exists as a foul-smelling gas.
In contrast, rice endosperm continues to proliferate and exists as a major component of the seed.
Politics is the planners, and exists as an afterthought to the natural order of cities.
The contrary is established, and the accepted doctrine is intelligible at least since it is part of the plaintiffs' case that the defendant bank existed and exists as an entity capable of committing the wrong alleged and of being sued.
Stat3 activation from within the cell indicates that CAgp130 gets JAK-associated and exists as an active dimer from its early processing stages within the ER.
They are colourless, odourless, and exist as a white crystalline powder.
Several studies highlight dissatisfaction with WBAs, and some feel they lack validity and reliability and exist as a "tick-box exercise".
