- MAS1 Oncogene (MAS1)
- MAP/Microtubule Affinity Regulating Kinase 4 (MARK4)
- MAP/Microtubule Affinity Regulating Kinase 3 (MARK3)
- MAP/Microtubule Affinity Regulating Kinase 2 (MARK2)
- MAP/Microtubule Affinity Regulating Kinase 1 (MARK1)
- Myristoylated Alanine Rich Protein Kinase C Substrate (MARCKS)
- Mannosidase Alpha Class 1A Member 1 (MAN1A1)
- Mannosidase Alpha Class 1A Member 2 (MAN1A2)
- Mannosidase Alpha Class 1B Member 1 (MAN1B1)
- Mannosidase Alpha Class 2A Member 1 (MAN2A1)
- Mannosidase Alpha Class 2A Member 2 (MAN2A2)
- Mannosidase Alpha Class 2B Member 1 (MAN2B1)
- Mannosidase Alpha Class 2C Member 1 (MAN2C1)
- Mannosidase Beta A, Lysosomal (MANbA)
- Mannosidase, Endo Alpha (MANEa)
