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C24:1 1-Deoxyceramide (m18:1/24:1(15Z)) is a very long-chain atypical ceramide containing a 1-deoxysphingosine (m18:1(4E)) backbone. 1-Deoxysphingolipids are formed when serine palmitoyltransferase condenses palmitoyl-CoA with alanine instead of serine during sphingolipid synthesis.

C24:1 1-Deoxyceramide (m18:1/24:1(15Z)) (C24:1(15Z) 1-Deoxyceramide) is a lipid molecule, which is composed of a long-chain fatty acid (24:1) and a 1-deoxysphingoid backbone. Deoxyceramide accumulates under the conditions of obesity and type 2 diabetes (T2D). Deoxyceramide is unable to be further metabolized to more complex sphingolipid, and is toxic when accumulates in the body. Deoxyceramide increases in differentiated adipocytes in vitro[1].

[1] Hannich JT, et al., Ether lipids, sphingolipids and toxic 1-deoxyceramides as hallmarks for lean and obese type 2 diabetic patients. Acta Physiol (Oxf). 2021 May;232(1):e13610. DOI:10.1111/apha.13610