Literature summary for 2.3.2.26 extracted from

Kamadurai, H.B.; Qiu, Y.; Deng, A.; Harrison, J.S.; Macdonald, C.; Actis, M.; Rodrigues, P.; Miller, D.J.; Souphron, J.; Lewis, S.M.; Kurinov, I.; Fujii, N.; Hammel, M.; Piper, R.; Kuhlman, B.; Schulman, B.A.
Mechanism of ubiquitin ligation and lysine prioritization by a HECT E3 (2013), eLife, 2, e00828.

Crystallization (Commentary)

Crystallization (Comment)	Organism
crystal structure of a trapped complex of ubiquitin ligase Rsp5 with ubiquitin and substrate Sna3 cytoplasmic domain as a proxy for the catalytic intermediate. The covalent linkage between ubiquitin and the HECT domain is oriented by ubiquitin interactions with the HECT domain N- and C-lobes that stabilize HECT domain conformation. The HECT domain architecture of the ligase primed for ligation prioritizes potential target lysines by their placement relative to a composite catalytic center for ubiquitination	Saccharomyces cerevisiae

Crystallization (Comment)

Organism

crystal structure of a trapped complex of ubiquitin ligase Rsp5 with ubiquitin and substrate Sna3 cytoplasmic domain as a proxy for the catalytic intermediate. The covalent linkage between ubiquitin and the HECT domain is oriented by ubiquitin interactions with the HECT domain N- and C-lobes that stabilize HECT domain conformation. The HECT domain architecture of the ligase primed for ligation prioritizes potential target lysines by their placement relative to a composite catalytic center for ubiquitination

Saccharomyces cerevisiae

Organism

Organism	UniProt	Comment	Textmining
Saccharomyces cerevisiae	P39940	-	-
Saccharomyces cerevisiae ATCC 204508	P39940	-	-

Substrates and Products (Substrate)

Substrates	Comment Substrates	Organism	Products	Comment (Products)	Rev.
additional information	ubiquitin ligases HECT E3 use a two-step mechanism to ligate ubiquitin to target proteins. The second step of ligation is mediated by a distinct catalytic architecture established by both the HECT E3 and its covalently linked ubiquitin. There exist three-way interactions between ubiquitin and the bilobal HECT domain orienting the E3-ubiquitin thioester bond for ligation, and restricting the location of the substrate-binding domain to prioritize targets lysines for ubiquitination	Saccharomyces cerevisiae	?	-	?
additional information	ubiquitin ligases HECT E3 use a two-step mechanism to ligate ubiquitin to target proteins. The second step of ligation is mediated by a distinct catalytic architecture established by both the HECT E3 and its covalently linked ubiquitin. There exist three-way interactions between ubiquitin and the bilobal HECT domain orienting the E3-ubiquitin thioester bond for ligation, and restricting the location of the substrate-binding domain to prioritize targets lysines for ubiquitination	Saccharomyces cerevisiae ATCC 204508	?	-	?
[Rsp-ubiquitin-conjugating enzyme UbcH5B]-S-ubiquitin-L-cysteine + [Sna3 cytoplasmic domain]-L-lysine	a specific HECT domain architecture may be important for ubiquitin ligation to Sna3 cytoplasmic domain, which involves both the catalytic C-lobe and the distal N-lobe packing differently from the arrangement promoting ubiquitin transfer from E2 enzyme to E3-ubiquitin intermediate	Saccharomyces cerevisiae	[Rsp5-ubiquitin-conjugating enzyme UbcH5B]-L-cysteine + [Sna3 cytoplasmic domain]-N6-ubiquitinyl-L-lysine	-	?
[Rsp-ubiquitin-conjugating enzyme UbcH5B]-S-ubiquitin-L-cysteine + [Sna3 cytoplasmic domain]-L-lysine	a specific HECT domain architecture may be important for ubiquitin ligation to Sna3 cytoplasmic domain, which involves both the catalytic C-lobe and the distal N-lobe packing differently from the arrangement promoting ubiquitin transfer from E2 enzyme to E3-ubiquitin intermediate	Saccharomyces cerevisiae ATCC 204508	[Rsp5-ubiquitin-conjugating enzyme UbcH5B]-L-cysteine + [Sna3 cytoplasmic domain]-N6-ubiquitinyl-L-lysine	-	?

Synonyms

Synonyms	Comment	Organism
RSP5	-	Saccharomyces cerevisiae