- C20orf166-AS1
- C20ORF173
- C20ORF187
- C20orf191
- C20orf194
- C20orf195
- C20ORF196
- C20ORF197
- C20orf201
- C20ORF202
- C20orf203
- C20ORF24
- C20orf26
- C20ORF27
- C20orf30
- C20orf4
- C20orf43
- C20orf46
- C20ORF62
- C20orf7
- C20orf72
- C20orf78
- C20ORF85
- C20ORF96
- C21orf104
- C21orf119
- C21ORF128
- C21orf129
- C21orf2
- C21orf33
- C21orf34
- C21orf37
- C21orf42
- C21ORF45
- C21orf54
- C21ORF56
- C21orf58
- C21orf59
- C21orf62
- C21orf62-AS1
- C21orf69
- C21orf74
- C21orf82
- C21orf84
- C21orf86
- C21orf88
- C21ORF90
- C21orf91
- C21orf93
- C22orf13
- C22ORF15
- C22orf23
- C22orf24
- C22orf25
- C22orf26
- C22orf28
- C22ORF29
- C22ORF30
- C22orf31
- C22orf32
- C22ORF34
- C22orf37
- C22ORF39
- C22ORF42
- C22ORF46
- C22orf9
- C25H16ORF71
- C25H16orf90
- C26ORF, Human C10orf120
- C2CD2
- C2CD2L
- C2CD3
- C2CD4A
- C2CD4B
- C2CD4C/NLF3
- C2cd4d
- C2CD5/KIAA0528
- C2H3ORF26
- C2ORF15
- C2ORF16
- C2orf24
- C2orf27A
- C2orf27B
- C2orf30
- C2orf40
- C2orf42
- C2ORF44
- C2orf47
- C2ORF48
- C2orf49
- C2orf50
- C2orf52/LINC00471
- C2ORF54
- C2orf55
- C2orf57
- C2orf60
- C2ORF61
- C2orf62
- C2orf63
- C2ORF66