10055 SAE1; SUMO1 activating enzyme subunit 1
     10054 UBA2; ubiquitin like modifier activating enzyme 2
     9039 UBA3; ubiquitin like modifier activating enzyme 3
     8883 NAE1; NEDD8 activating enzyme E1 subunit 1
     27304 MOCS3; molybdenum cofactor synthesis 3
     79876 UBA5; ubiquitin like modifier activating enzyme 5
     7318 UBA7; ubiquitin like modifier activating enzyme 7
     55236 UBA6; ubiquitin like modifier activating enzyme 6
     10533 ATG7; autophagy related 7

K10684 UBLE1A; ubiquitin-like 1-activating enzyme E1 A [EC:6.2.1.45] 
K10685 UBLE1B; ubiquitin-like 1-activating enzyme E1 B [EC:6.2.1.45] 
K10686 UBA3; NEDD8-activating enzyme E1 [EC:6.2.1.64] 
K04532 NAE1; NEDD8-activating enzyme E1 regulatory subunit 
K11996 MOCS3; adenylyltransferase and sulfurtransferase [EC:2.7.7.80 2.8.1.11] 
K12164 UBA5; ubiquitin-like modifier-activating enzyme 5 
K10698 UBE1L; ubiquitin-activating enzyme E1-like [EC:6.2.1.45] 
K10699 UBE1L2; ubiquitin-activating enzyme E1-like protein 2 [EC:6.2.1.45] 
K08337 ATG7; ubiquitin-like modifier-activating enzyme ATG7