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helicase
This term is a specialized technical noun used almost exclusively within the fields of molecular biology, genetics, and biochemistry. It describes a specific functional class of enzymes, and its usage is strictly clinical or academic in register.
Because it refers to a specific biological catalyst, it is typically used in the singular when discussing the general mechanism of DNA replication, but can be used in the plural when referring to different types or species of the enzyme (e.g., various helicases found in different organisms).
Meanings
Examples
The enzyme known as helicase unwinds the DNA double helix.
Without helicase, the cell would be unable to replicate its genetic material.
I wonder if the helicase is functioning correctly in this mutant strain.
Helicase acts like a zipper to separate the two strands of DNA.
The researcher observed how helicase moves along the phosphate backbone.
Wait, does helicase require ATP to break those hydrogen bonds?
A deficiency in specific helicase proteins can lead to rare genetic disorders.
The replication fork is formed once helicase opens the helix.