CKI

cki is a three-letter string used as an acronym, code, or identifier in different domains. There is no universally recognized meaning for "cki" on its own, and its interpretation depends on context, capitalization, and field. When capitalized as CKI, it most commonly refers to Casein Kinase I, a family of serine/threonine kinases in biology. Members include CKIα, CKIδ, CKIε, and CKIγ, and they participate in regulation of circadian rhythms, Wnt signaling, vesicle trafficking, and DNA repair.

In other contexts, "cki" may appear as an arbitrary abbreviation within specific projects, organizations, or datasets, or as a filename or identifier in software development. Without additional qualifiers, the meaning cannot be determined from the string alone.

In language and coding standards, three-letter codes exist (such as ISO language codes or IATA airport codes) but "cki" is not widely used as a standard code in major public catalogs; if you encounter it in a catalog, check the accompanying label or domain-specific glossary to deduce its meaning.

If you are seeking information about a particular use of "cki", provide more context or search with the domain plus the term (for example, "CKI kinase" for biology, "CKI" in a project acronym, or "cki" as a variable name).