Protein
SUMO-activating enzyme subunit 2-A
Function
The heterodimer acts as an E1 ligase for sumo1, sumo2, and sumo3. It mediates ATP-dependent activation of sumo proteins followed by formation of a thioester bond between a sumo protein and a conserved active site cysteine residue on uba2/sae2 (By similarity).
Similarity
Belongs to the ubiquitin-activating E1 family.
Sequence
MAVIGALPKEVAEAVSASRLLVVGAGGIGCELLKNLVLTGFTNLDVIDLDTIDVSNLNRQFLFQKKHVGRSKAQVAKESVLQFCPDANITAYHDSIMNPDYNVEFFKQFTMAMNALDNNAARNHVNRMCLAAGIPLIESGTAGYLGQVSVIKKGVTECYECQPKPTQKTFPGCTIRNTPSEPIHCIVWAKYLFNQLFGEEDADQEVAPDIADPEAAWDPTKAAERANASNVDGDIKRVSTKQWAKSTGYDPIKLFNKLFRDDIKYLLTMDRLWRKRKPPIPLEWASLHNKENCSEIQNESSLLGLKDQKVLNVASYAQLFSKSVETLREQLREKGDGAELVWDKDDVPAMDFVTAAANLRMHIFSMNMKSKFDVKSMAGNIIPAIATTNAVISGLIVLEGLKILSGNTEQCRTVFLNKQPNPRKKLLVPCSLDPPNPSCYVCAIKPEVTVKLNVHKVTVQMLQDKILKEKFAMVAPDVQIEDGKGTILISSEAGETDANNHRKISEFGIRNSSQLQADDFLQDYTLMMNILHSDEMEKDVDFEVVGDVPEKGPQKPPEESVKNITNGSDDGAQPSTSKAQDQDDVLIVDSDEESPSSSNADVGMESASLKRKLPDEEAVSSTKRKRIEPPVEEDDDIIALD