N-acetylhexosamine 1-kinase (EC 2.7.1.162, NahK, LnpB, N-acetylgalactosamine/N-acetylglucosamine 1-kinase) is an enzyme with systematic name ATP:N-acetyl-D-hexosamine 1-phosphotransferase.^[1] This enzyme catalyses the following chemical reaction

ATP + N-acetyl-D-hexosamine ${\displaystyle \rightleftharpoons }$ ADP + N-acetyl-alpha-D-hexosamine 1-phosphate

This enzyme is involved in the lacto-N-biose I/galacto-N-biose degradation pathway in the probiotic bacterium Bifidobacterium longum.

• N-acetylhexosamine+1-kinase at the U.S. National Library of Medicine Medical Subject Headings (MeSH)