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Overview

Uniprot IDA0A8I5ZL60
Protein NameSUMO-activating enzyme subunit 1
Gene NameSae1
OrganismRattus norvegicus

Kla Sites from experimental identification

Position Flanking peptide
186 EEKTKVTKVSQGVED
201 GPDAKRAKLDSSETT

Function

The heterodimer acts as an E1 ligase for SUMO1, SUMO2, SUMO3, and probably SUMO4. 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

Protein Sequence

10 MVEKEEVSGG 20 GGGISEEEAA 30 QYDRQIRLWG 40 LEAQKRLRAS 50 RVLIVGMKGL 60 GAEIAKNLIL 70 AGVKGLTMLD 80 HEQVSPEDLG 90 AQFLIRTGSV 100 GQNRAEASLE 110 RAQNLNPMVD 120 VKVDTEDIEK 130 KPESFFTEFD 140 AVCLTCCSKD 150 VIIKVDQICH 160 RNSIKFFTGD 170 VFGYHGYTFA 180 NLGEHEFVEE 190 KTKVTKVSQG 200 VEDGPDAKRA 210 KLDSSETTMV 220 KKKVLFCPVK 230 EALAVDWSGE 240 KAQAALKRTA 250 PDYFLLQVLL 260 KFRTDKGRDP 270 TSDSYSEDAE 280 LLLQIRNDVF 290 DSLGVSPDLL 300 PDDFVRLASA 310 QTGVCVGPCL 320 KGTLLTTTSS SSMA

Gene Ontology

Classification GO ID Description
Cellular Component GO:0031510 SUMO activating enzyme complex
Molecular Function GO:0008641 ubiquitin-like modifier activating enzyme activity

Reference

[1] Chen Y, Sun W, Sun Z, Zhao H, Wu T et al.. Effect of electroacupuncture on hippocampal protein lactylation in a rat model of vascular dementia.. Front Neurol 16:1629474. 2025. PMID: 40963935.