The modification of proteins with ubiquitin is an important cellular mechanism for targeting abnormal or short-lived proteins for degradation. Ubiquitination involves at least three classes of enzymes: ubiquitin-activating enzymes, or E1s, ubiquitin-conjugating enzymes, or E2s, and ubiquitin-protein ligases, or E3s. This gene encodes a member of the E2 ubiquitin-conjugating enzyme family. This enzyme functions in the ubiquitination of the tumor-suppressor protein p53, which is induced by an E3 ubiquitin-protein ligase. Two alternatively spliced transcript variants have been found for this gene and they encode distinct isoforms.[2]
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↑Mace PD, Linke K, Feltham R, Schumacher FR, Smith CA, Vaux DL, Silke J, Day CL (Nov 2008). "Structures of the cIAP2 RING domain reveal conformational changes associated with ubiquitin-conjugating enzyme (E2) recruitment". The Journal of Biological Chemistry. 283 (46): 31633–40. doi:10.1074/jbc.M804753200. PMID18784070.
↑ 4.04.1Anan T, Nagata Y, Koga H, Honda Y, Yabuki N, Miyamoto C, Kuwano A, Matsuda I, Endo F, Saya H, Nakao M (Nov 1998). "Human ubiquitin-protein ligase Nedd4: expression, subcellular localization and selective interaction with ubiquitin-conjugating enzymes". Genes to Cells. 3 (11): 751–63. doi:10.1046/j.1365-2443.1998.00227.x. PMID9990509.
↑ 5.05.1Hatakeyama S, Jensen JP, Weissman AM (Jun 1997). "Subcellular localization and ubiquitin-conjugating enzyme (E2) interactions of mammalian HECT family ubiquitin protein ligases". The Journal of Biological Chemistry. 272 (24): 15085–92. doi:10.1074/jbc.272.24.15085. PMID9182527.
↑ 6.06.1Yu P, Chen Y, Tagle DA, Cai T (Jun 2002). "PJA1, encoding a RING-H2 finger ubiquitin ligase, is a novel human X chromosome gene abundantly expressed in brain". Genomics. 79 (6): 869–74. doi:10.1006/geno.2002.6770. PMID12036302.
Hatakeyama S, Jensen JP, Weissman AM (Jun 1997). "Subcellular localization and ubiquitin-conjugating enzyme (E2) interactions of mammalian HECT family ubiquitin protein ligases". The Journal of Biological Chemistry. 272 (24): 15085–92. doi:10.1074/jbc.272.24.15085. PMID9182527.
Anan T, Nagata Y, Koga H, Honda Y, Yabuki N, Miyamoto C, Kuwano A, Matsuda I, Endo F, Saya H, Nakao M (Nov 1998). "Human ubiquitin-protein ligase Nedd4: expression, subcellular localization and selective interaction with ubiquitin-conjugating enzymes". Genes to Cells. 3 (11): 751–63. doi:10.1046/j.1365-2443.1998.00227.x. PMID9990509.
Gonen H, Bercovich B, Orian A, Carrano A, Takizawa C, Yamanaka K, Pagano M, Iwai K, Ciechanover A (May 1999). "Identification of the ubiquitin carrier proteins, E2s, involved in signal-induced conjugation and subsequent degradation of IkappaBalpha". The Journal of Biological Chemistry. 274 (21): 14823–30. doi:10.1074/jbc.274.21.14823. PMID10329681.
Joazeiro CA, Wing SS, Huang H, Leverson JD, Hunter T, Liu YC (Oct 1999). "The tyrosine kinase negative regulator c-Cbl as a RING-type, E2-dependent ubiquitin-protein ligase". Science. 286 (5438): 309–12. doi:10.1126/science.286.5438.309. PMID10514377.
Strack P, Caligiuri M, Pelletier M, Boisclair M, Theodoras A, Beer-Romero P, Glass S, Parsons T, Copeland RA, Auger KR, Benfield P, Brizuela L, Rolfe M (Jul 2000). "SCF(beta-TRCP) and phosphorylation dependent ubiquitinationof I kappa B alpha catalyzed by Ubc3 and Ubc4". Oncogene. 19 (31): 3529–36. doi:10.1038/sj.onc.1203647. PMID10918611.
Yu P, Chen Y, Tagle DA, Cai T (Jun 2002). "PJA1, encoding a RING-H2 finger ubiquitin ligase, is a novel human X chromosome gene abundantly expressed in brain". Genomics. 79 (6): 869–74. doi:10.1006/geno.2002.6770. PMID12036302.
Xia Y, Pao GM, Chen HW, Verma IM, Hunter T (Feb 2003). "Enhancement of BRCA1 E3 ubiquitin ligase activity through direct interaction with the BARD1 protein". The Journal of Biological Chemistry. 278 (7): 5255–63. doi:10.1074/jbc.M204591200. PMID12431996.
Takeyama K, Aguiar RC, Gu L, He C, Freeman GJ, Kutok JL, Aster JC, Shipp MA (Jun 2003). "The BAL-binding protein BBAP and related Deltex family members exhibit ubiquitin-protein isopeptide ligase activity". The Journal of Biological Chemistry. 278 (24): 21930–7. doi:10.1074/jbc.M301157200. PMID12670957.
Xu L, Yang L, Moitra PK, Hashimoto K, Rallabhandi P, Kaul S, Meroni G, Jensen JP, Weissman AM, D'Arpa P (Aug 2003). "BTBD1 and BTBD2 colocalize to cytoplasmic bodies with the RBCC/tripartite motif protein, TRIM5delta". Experimental Cell Research. 288 (1): 84–93. doi:10.1016/S0014-4827(03)00187-3. PMID12878161.
Shimura H, Schwartz D, Gygi SP, Kosik KS (Feb 2004). "CHIP-Hsc70 complex ubiquitinates phosphorylated tau and enhances cell survival". The Journal of Biological Chemistry. 279 (6): 4869–76. doi:10.1074/jbc.M305838200. PMID14612456.
Lehner B, Semple JI, Brown SE, Counsell D, Campbell RD, Sanderson CM (Jan 2004). "Analysis of a high-throughput yeast two-hybrid system and its use to predict the function of intracellular proteins encoded within the human MHC class III region". Genomics. 83 (1): 153–67. doi:10.1016/S0888-7543(03)00235-0. PMID14667819.
1z2u: The 1.1A crystallographic structure of ubiquitin-conjugating enzyme (ubc-2) from Caenorhabditis elegans: functional and evolutionary significance