Codes Used in Sequence Description
An example for description of the modified base in FEATURES line.
Example
FEATURES Location/Qualifiers
modified_base 15
/mod_base="m2g"
| Abbreviation | Modified base description |
|---|---|
| ac4c | 4-acetylcytidine |
| chm5u | 5-(carboxyhydroxylmethyl)uridine |
| cm | 2'-O-methylcytidine |
| cmnm5s2u | 5-carboxymethylaminomethyl-2-thiouridine |
| cmnm5u | 5-carboxymethylaminomethyluridine |
| d | dihydrouridine |
| fm | 2'-O-methylpseudouridine |
| gal q | beta,D-galactosylqueosine |
| gm | 2'-O-methylguanosine |
| i | inosine |
| i6a | N6-isopentenyladenosine |
| m1a | 1-methyladenosine |
| m1f | 1-methylpseudouridine |
| m1g | 1-methylguanosine |
| m1i | 1-methylinosine |
| m22g | 2,2-dimethylguanosine |
| m2a | 2-methyladenosine |
| m2g | 2-methylguanosine |
| m3c | 3-methylcytidine |
| m5c | 5-methylcytidine |
| m6a | N6-methyladenosine |
| m7g | 7-methylguanosine |
| mam5u | 5-methylaminomethyluridine |
| mam5s2u | 5-methoxyaminomethyl-2-thiouridine |
| man q | beta,D-mannosylqueosine |
| mcm5s2u | 5-methoxycarbonylmethyl-2-thiouridine |
| mcm5u | 5-methoxycarbonylmethyluridine |
| mo5u | 5-methoxyuridine |
| ms2i6a | 2-methylthio-N6-isopentenyladenosine |
| ms2t6a | N-((9-beta-D-ribofuranosyl-2-methyltiopurine-6-yl)carbamoyl)threonine |
| mt6a | N-((9-beta-D-ribofuranosylpurine-6-yl)N-methyl-carbamoyl)threonine |
| mv | uridine-5-oxyacetic acid-methylester |
| o5u | uridine-5-oxyacetic acid (v) |
| osyw | wybutoxosine |
| p | pseudouridine |
| q | queosine |
| s2c | 2-thiocytidine |
| s2t | 5-methyl-2-thiouridine |
| s2u | 2-thiouridine |
| s4u | 4-thiouridine |
| t | 5-methyluridine |
| t6a | N-((9-beta-D-ribofuranosylpurine-6-yl)carbamoyl)threonine |
| tm | 2'-O-methyl-5-methyluridine |
| um | 2'-O-methyluridine |
| yw | wybutosine |
| x | 3-(3-amino-3-carboxypropyl)uridine, (acp3)u |
| OTHER | Other (Modified base not found in this list can be annotated by using 'note' qualifier) |