AK1s

AK1s is a term that can refer to multiple subjects, depending on context. In science, AK1s most commonly denote adenylate kinase 1 enzymes found in vertebrates. Adenylate kinases are a family of enzymes that catalyze the reversible transfer of a phosphate group between adenine nucleotides, playing a key role in cellular energy regulation. The reaction is generally described as ADP plus ADP forming ATP and AMP, though the enzyme’s activity is part of a broader network that buffers cellular energy during varying demand.

The AK1 isoform is a cytosolic enzyme with expression in several tissues, including red blood cells and muscle. It helps maintain the balance of ATP, ADP, and AMP, supporting energy bursts and nucleotide pool stability in response to metabolic needs. The AK1 gene encodes this enzyme in humans, and AK1 homologs are present across many species, often showing tissue-specific expression patterns and regulatory differences.

Outside of biology, the designation AK1S or AK-1S may appear as a model number, product name, or organizational identifier in other domains. In these cases, the meaning is context-dependent and not related to the enzyme family. When encountering the term AK1s, consulting field-specific sources or clarifying the subject area is important to determine which meaning applies.