- Mesothelin
- MESP1
- Mesp2
- MEST
- Metabotropic Glutamate Receptor 1
- Metabotropic Glutamate Receptor 3
- Metabotropic Glutamate Receptor 4
- Metabotropic Glutamate Receptor 5
- Metabotropic Glutamate Receptor 6
- METAP1
- METAP2
- Metaxin 1
- METRN
- METRNL
- METT5D1
- METTL1
- METTL10
- METTL11A
- METTL11B
- METTL12
- METTL13
- METTL14
- METTL15P1
- METTL16
- METTL17
- METTL18
- METTL2
- METTL20
- METTL21C
- Mettl21e
- METTL22
- METTL24
- METTL25
- METTL2A
- METTL2B
- METTL3
- METTL4
- METTL5
- METTL6
- METTL7A
- METTL7B
- METTL8
- METTL9
- MEX3A
- MEX3B
- MEX3C
- MEX3D
- MFAP1
- Mfap1a
- MFAP2
- MFAP3
- MFAP3L
- MFAP4
- MFAP5
- MFF
- MFGE8
- MFI2
- MFN1
- MFN2
- MFRP
- MFS10
- MFSD1
- MFSD11
- MFSD2A
- MFSD2B
- MFSD3
- MFSD4
- Mfsd4b1/Naglt1a
- Mfsd4b2/Naglt1b
- Mfsd4b3
- MFSD5
- MFSD6
- MFSD6L
- MFSD7
- MFSD8
- MFSD9
- MGA
- MGAT1
- MGAT2
- MGAT3
- MGAT4A
- MGAT4B
- MGAT4C
- Mgat4e
- MGAT5
- MGAT5B
- MGC116121
- MGC137014
- MGC137211
- MGC39372
- MGC50722
- MGC70863
- MGC70870
- MGEA5
- MGLL
- MGMT
- MGP
- MGST1
- MGST2
- MGST3