Entry
Name
Ubiquitin mediated proteolysis - Xenopus laevis (African clawed frog)
Description
Protein ubiquitination plays an important role in eukaryotic cellular processes. It mainly functions as a signal for 26S proteasome dependent protein degradation. The addition of ubiquitin to proteins being degraded is performed by a reaction cascade consisting of three enzymes, named E1 (ubiquitin activating enzyme), E2 (ubiquitin conjugating enzyme), and E3 (ubiquitin ligase). Each E3 has specificity to its substrate, or proteins to be targeted by ubiquitination. Many E3s are discovered in eukaryotes and they are classified into four types: HECT type, U-box type, single RING-finger type, and multi-subunit RING-finger type. Multi-subunit RING-finger E3s are exemplified by cullin-Rbx E3s and APC/C. They consist of a RING-finger-containing subunit (RBX1 or RBX2) that functions to bind E2s, a scaffold-like cullin molecule, adaptor proteins, and a target recognizing subunit that binds substrates.
Class
Genetic Information Processing; Folding, sorting and degradation
BRITE hierarchy
Pathway map
Other DBs
Organism
Xenopus laevis (African clawed frog) [GN:
xla ]
Gene
100037155 anapc13.2.L; anaphase promoting complex subunit 13, gene 2 L homeolog [KO:K12456 ]
100294520 socs1.L; suppressor of cytokine signaling 1 L homeolog [KO:K04694 ]
108696080 rhobtb1.L; rho-related BTB domain-containing protein 1 [KO:K07868 ]
108697486 anapc16.S; anaphase-promoting complex subunit 16-like [KO:K25229 ]
108698127 cdc26.L; anaphase-promoting complex subunit CDC26 isoform X1 [KO:K03359 ]
108707347 pias2.S; E3 SUMO-protein ligase PIAS2 isoform X1 [KO:K16063 ] [EC:2.3.2.-]
108711624 rhobtb2.L; rho-related BTB domain-containing protein 2 isoform X1 [KO:K07868 ]
108712619 skp1.S; S-phase kinase-associated protein 1 isoform X2 [KO:K03094 ]
108712692 rhobtb2.S; rho-related BTB domain-containing protein 2 isoform X1 [KO:K07868 ]
108712799 pias1.S; E3 SUMO-protein ligase PIAS1 isoform X1 [KO:K04706 ] [EC:2.3.2.-]
108715228 ddb2.S; LOW QUALITY PROTEIN: DNA damage-binding protein 2 [KO:K10140 ]
108717771 anapc1.S; anaphase-promoting complex subunit 1 isoform X1 [KO:K03348 ]
373715 pias1.L; protein inhibitor of activated STAT 1 L homeolog [KO:K04706 ] [EC:2.3.2.-]
379130 cdc20.S; cell division cycle 20 S homeolog [KO:K03363 ]
379580 cdc23.L; cell division cycle 23 L homeolog [KO:K03355 ]
380068 cdc23.S; cell division cycle 23 S homeolog [KO:K03355 ]
380351 fzr1.L; fizzy/cell division cycle 20 related 1 L homeolog [KO:K03364 ]
380385 ube3a.S; ubiquitin protein ligase E3A (human papilloma virus E6-associated protein, Angelman syndrome) S homeolog [KO:K10587 ] [EC:2.3.2.26 ]
380467 socs3.S; suppressor of cytokine signaling 3 S homeolog [KO:K04696 ]
380538 skp1.L; S-phase kinase-associated protein 1 [KO:K03094 ]
398044 cdc20.L; cell division cycle 20 L homeolog [KO:K03363 ]
398387 birc7.S; baculoviral IAP repeat-containing protein 7-A [KO:K16061 ]
398940 ube2q2.L; ubiquitin conjugating enzyme E2Q family member 2 L homeolog [KO:K10582 ] [EC:2.3.2.23 ]
398990 mgrn1.S; mahogunin ring finger 1, E3 ubiquitin protein ligase S homeolog [KO:K10604 ] [EC:2.3.2.27 ]
414530 anapc4.L; anaphase promoting complex subunit 4 L homeolog [KO:K03351 ]
414533 socs3.L; suppressor of cytokine signaling 3 L homeolog [KO:K04696 ]
432025 anapc15.S; anaphase-promoting complex subunit 15A [KO:K25228 ]
432031 pias2.L; protein inhibitor of activated STAT 2 L homeolog [KO:K16063 ] [EC:2.3.2.-]
443882 uba52.L; ubiquitin A-52 residue ribosomal protein fusion product 1 L homeolog [KO:K02927 ]
443921 socs1.S; suppressor of cytokine signaling 1 S homeolog [KO:K04694 ]
443949 anapc16.L; anaphase-promoting complex subunit 16 [KO:K25229 ]
443994 cdc27.S; cell division cycle protein 27 homolog [KO:K03350 ]
444030 herc3.L; HECT and RLD domain containing E3 ubiquitin protein ligase 3 L homeolog [KO:K10614 ] [EC:2.3.2.26 ]
444104 fbxw8.L; F-box and WD repeat domain containing 8 L homeolog [KO:K10264 ]
444105 rhobtb1.S; Rho related BTB domain containing 1 S homeolog [KO:K07868 ]
444462 det1.L; DET1, COP1 ubiquitin ligase partner L homeolog [KO:K10571 ]
444494 rps27a.S; ribosomal protein S27a S homeolog [KO:K02977 ]
444507 pias3.L; protein inhibitor of activated STAT 3 L homeolog [KO:K16064 ] [EC:2.3.2.-]
446546 klhl13.L; kelch like family member 13 L homeolog [KO:K10447 ]
446568 birc2.L; baculoviral IAP repeat containing 2 L homeolog [KO:K16060 ]
446574 anapc7.L; anaphase promoting complex subunit 7 L homeolog [KO:K03354 ]
446982 cdc16.L; cell division cycle 16 L homeolog [KO:K03353 ]
447726 anapc7.S; anaphase promoting complex subunit 7 S homeolog [KO:K03354 ]
495687 ubox5.S; U-box domain containing 5 S homeolog [KO:K10600 ]
496013 rchy1.L; ring finger and CHY zinc finger domain containing 1 L homeolog [KO:K10144 ] [EC:2.3.2.27 ]
496247 anapc11.L; anaphase promoting complex subunit 11 L homeolog [KO:K03358 ]
496326 keap1.L; kelch like ECH associated protein 1 L homeolog [KO:K10456 ]
496353 ercc8.S; excision repair cross-complementation group 8 S homeolog [KO:K10570 ]
595046 anapc10.L; uncharacterized protein LOC595046 [KO:K03357 ]
734230 fbxw7.L; F-box and WD repeat domain containing 7 L homeolog [KO:K10260 ]
734319 anapc10.S; anaphase promoting complex subunit 10 S homeolog [KO:K03357 ]
734526 cul1.L; uncharacterized protein LOC734526 [KO:K03347 ]
734599 MGC115598; uncharacterized protein LOC734599 [KO:K10260 ]
734832 anapc15.L; anaphase-promoting complex subunit 15B [KO:K25228 ]
734901 skp2.L; S-phase kinase-associated protein 2, E3 ubiquitin protein ligase L homeolog [KO:K03875 ]
779325 anapc5.L; anaphase promoting complex subunit 5 L homeolog [KO:K03352 ]
Reference
Authors
Kamura T.
Title
[Cullin-based E3 family]
Journal
Tanpakushitsu Kakusan Koso 51:1167-72 (2006)
Reference
Authors
Matsuda N.
Title
[Overview: hereditary disorders caused by dysfunction of ubiquitylation]
Journal
Tanpakushitsu Kakusan Koso 51:1402-7 (2006)
Reference
Authors
Tokunaga F.
Title
[E2 ubiquitin-conjugating enzymes: structures and functions]
Journal
Tanpakushitsu Kakusan Koso 51:1150-6 (2006)
Reference
Authors
Nalepa G, Rolfe M, Harper JW.
Title
Drug discovery in the ubiquitin-proteasome system.
Journal
Reference
Authors
Hsu YJ, Goodman SR.
Title
Spectrin and ubiquitination: a review.
Journal
Cell Mol Biol (Noisy-le-grand) Suppl 51:OL801-7 (2005)
Reference
Authors
Hatakeyama S, Nakayama KI.
Title
Ubiquitylation as a quality control system for intracellular proteins.
Journal
Reference
Authors
Lee J, Zhou P.
Title
DCAFs, the missing link of the CUL4-DDB1 ubiquitin ligase.
Journal
Related pathway
KO pathway