Anhydro-N-acetylmuramic acid kinase (, anhMurNAc kinase, AnmK) is an enzyme with systematic name ATP:1,6-anhydro-N-acetyl-beta-muramate 6-phosphotransferase. This enzyme catalyses the following chemical reaction
This enzyme is required for the use of anhydro-N-acetylmuramic acid in Pseudomonadota.