CATH Domain 3hctB00

CATH Classification

Level	CATH Code	Description
	3	Alpha Beta
	3.10	Roll
	3.10.110	Ubiquitin Conjugating Enzyme
	3.10.110.10	Ubiquitin Conjugating Enzyme

Domain Context

CATH Clusters

Superfamily	Ubiquitin Conjugating Enzyme
Functional Family	Ubiquitin-conjugating enzyme E2 N

Enzyme Information

2.3.2.23

E2 ubiquitin-conjugating enzyme.

based on mapping to UniProt P61088

S-ubiquitinyl-[E1 ubiquitin-activating enzyme]-L-cysteine + [E2 ubiquitin-conjugating enzyme]-L-cysteine = [E1 ubiquitin-activating enzyme]-L-cysteine + S-ubiquitinyl-[E2 ubiquitin-conjugating enzyme]-L- cysteine.

-!- The E2 ubiquitin-conjugating enzyme acquires the activated ubquitin from the E1 ubiquitin-activating enzyme (EC 6.2.1.45) and binds it via a transthioesterification reaction to itself. -!- In the human enzyme the catalytic center is located at Cys-87 where ubiquitin is bound via its C-terminal glycine in a thioester linkage. -!- Formerly EC 6.3.2.19.

UniProtKB Entries (1)

P61088

UBE2N_HUMAN

Homo sapiens

Ubiquitin-conjugating enzyme E2 N

PDB Structure

PDB	3HCT
External Links	PDBSum Proteopedia
Method	X-RAY DIFFRACTION
Organism
Primary Citation	E2 interaction and dimerization in the crystal structure of TRAF6. Yin, Q., Lin, S.C., Lamothe, B., Lu, M., Lo, Y.C., Hura, G., Zheng, L., Rich, R.L., Campos, A.D., Myszka, D.G., Lenardo, M.J., Darnay, B.G., Wu, H. Nat.Struct.Mol.Biol.