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Ubiquitin (Ub) is a highly conserved small protein containing 76 amino acids that is ubiquitously expressed in eukaryotic cells. The covalent attachment of ubiquitin to target proteins, namely ubiquitination, is an important type of protein posttranslational modification (PTM). Ubiquitination plays a crucial role in controlling various proteins’ stability and functions, regulating many cellular pathways, such as cell division and differentiation, response to environmental stress, cell differentiation, immune response, DNA repair, and apoptosis. The ubiquitin-proteasome pathway (UPP), a well-known pathway, is the primary cytosolic proteolytic machinery for the selective degradation of various forms of damaged proteins. Ubiquitination occurs in a three-step reaction requiring three different enzymes: 1) Ubiquitin activation by an Ub -activating enzyme (E1); 2) Activated ubiquitin is transferred from E1 to a cysteinyl residue in an Ub-conjugating enzyme (E2); 3) Ubiquitin is ligated to the lysine residues of target proteins by an Ub-ligase enzyme (E3).
UCHL1 Protein, a ubiquitin carboxyl-terminal hydrolase, plays a crucial role in protein degradation and regulation of cellular processes.It is involved in maintaining neuronal integrity and has been linked to neurodegenerative diseases.UCHL1 Protein's potential as a biomarker and therapeutic target in neurodegenerative disorders makes it a subject of intense research in the field of neuroscience.UCHL1 Protein, Mouse (His) is the recombinant mouse-derived UCHL1 protein, expressed by E.coli , with N-His labeled tag.
USP5 protein selectively cleaves branched multiubiquitin polymers, favoring 'Lys-48'-linked polyubiquitin disassembly. It exhibits lower affinity for linear and 'Lys-63'-linked polyubiquitin. USP5 knockdown leads to p53/TP53 accumulation, enhancing p53/TP53 transcriptional activity, as unanchored polyubiquitin competes with ubiquitinated p53/TP53 for proteasomal recognition, unlike MDM2. USP5 Protein, Human (sf9, His) is the recombinant human-derived USP5 protein, expressed by Sf9 insect cells , with C-His labeled tag. The total length of USP5 Protein, Human (sf9, His) is 835 a.a., with molecular weight of ~100 kDa.
The UCHL1 protein is a multifunctional deubiquitinase that regulates a variety of cellular processes. It maintains synaptic and cardiac function, modulates inflammatory responses, and influences osteoclastogenesis. UCHL1 Protein, Human (His) is the recombinant human-derived UCHL1 protein, expressed by E. coli , with C-6*His labeled tag. The total length of UCHL1 Protein, Human (His) is 223 a.a., with molecular weight of ~26.0 kDa.
USP14 is a proteasome-associated deubiquitinase that regulates ubiquitin dynamics by releasing ubiquitin from proteins marked for degradation. As a reversible proteasome subunit, USP14 ensures ubiquitin replenishment. USP14 Protein, Human (His) is the recombinant human-derived USP14 protein, expressed by E. coli , with N-6*His labeled tag. The total length of USP14 Protein, Human (His) is 404 a.a., with molecular weight of 47-52 kDa.
XIAP protein is a multifunctional regulator that controls apoptosis, inflammation, immunity, copper homeostasis, and various signaling pathways. As a caspase inhibitor, it blocks CASP3 and CASP7 substrate access, keeping CASP9 inactive. XIAP Protein, Human (Avi) is the recombinant human-derived XIAP protein, expressed by E. coli , with C-Avi labeled tag. The total length of XIAP Protein, Human (Avi) is 236 a.a., with molecular weight of ~29.1 kDa.
XIAP protein is a multifunctional regulator that controls apoptosis, inflammation, immunity, copper homeostasis, and various signaling pathways. As a caspase inhibitor, it blocks CASP3 and CASP7 substrate access, keeping CASP9 inactive. XIAP Protein, Human (His) is the recombinant human-derived XIAP protein, expressed by E. coli , with N-His labeled tag. The total length of XIAP Protein, Human (His) is 105 a.a., with molecular weight of ~14.8 kDa.
The UCHL1 protein is a ubiquitin proteolytic enzyme essential for processing ubiquitin precursors and hydrolyzing ubiquitinated proteins. As a thiol protease, it specifically cleaves the C-terminal glycine of ubiquitin. UCHL1 Protein, Rat (His) is the recombinant rat-derived UCHL1 protein, expressed by E. coli , with N-10*His labeled tag. The total length of UCHL1 Protein, Rat (His) is 222 a.a., with molecular weight of ~28 kDa.
Ubiquitin-like modifier-activating enzyme 1; Protein A1S9; UBA1; A1S9T; UBE1
Human
Sf9 insect cells
The UBA1 protein initiates ubiquitin conjugation, marking proteins for degradation in the ubiquitin-proteasome system. UBA1 Protein, Human (sf9, His-GST) is the recombinant human-derived UBA1 protein, expressed by Sf9 insect cells , with N-His, N-GST labeled tag. The total length of UBA1 Protein, Human (sf9, His-GST) is 1057 a.a., with molecular weight of ~130 kDa.
Kelch-like ECH-associated protein 1; Cytosolic inhibitor of Nrf2; KEAP1; KEAP1
Human
Sf9 insect cells
KEAP1 in the BCR E3 ubiquitin ligase complex complex regulates cellular responses to oxidative stress by ubiquitinating NFE2L2/NRF2. As an oxidative stress sensor, KEAP1 normally promotes NFE2L2/NRF2 degradation. KEAP1 Protein, Human (sf9) is the recombinant human-derived KEAP1 protein, expressed by Sf9 insect cells , with tag free. The total length of KEAP1 Protein, Human (sf9) is 623 a.a., with molecular weight of ~64 kDa.
ATG3 Protein, Human is a recombinant human Ubiquitin-like-conjugating Enzyme ATG3 expressed in E. coli. ATG3, the E2 ubiquitin-conjugating enzyme for the LC3 lipidation process, is essential for autophagy.
Kelch-like ECH-associated protein 1; Cytosolic inhibitor of Nrf2; KEAP1; KEAP1
Human
Sf9 insect cells
KEAP1 in the BCR E3 ubiquitin ligase complex complex regulates cellular responses to oxidative stress by ubiquitinating NFE2L2/NRF2. As an oxidative stress sensor, KEAP1 normally promotes NFE2L2/NRF2 degradation. KEAP1 Protein, Human (sf9) is the recombinant human-derived KEAP1 protein, expressed by Sf9 insect cells , with tag free. The total length of KEAP1 Protein, Human (sf9) is 623 a.a., with molecular weight of ~64 kDa.
USP46 Protein, a ubiquitin-specific protease, is involved in the regulation of cellular processes and protein degradation. It has been found to play a critical role in synaptic plasticity and memory formation. USP46 Protein's potential as a therapeutic target in cognitive disorders and its impact on neurological function make it a subject of interest in neuroscience research. USP46 Protein, Human/Mouse (sf9) is the recombinant human, mouse-derived USP46 protein, expressed by Sf9 insect cells , with tag free. The total length of USP46 Protein, Human/Mouse (sf9) is 366 a.a., with molecular weight of ~43 kDa.
ISG15/UCRP Protein, Human (His) is the recombinant human-derived ISG15/UCRP protein, expressed by E. coli , with C-6*His labeled tag. The total length of ISG15/UCRP Protein, Human (His) is 156 a.a., with molecular weight of ~16.0 kDa.
UBE2D1 Protein, crucial in cellular processes, accepts ubiquitin from the E1 complex, preferentially catalyzing 'Lys-48'-linked polyubiquitination in vitro, showcasing versatility. It mediates selective degradation of short-lived and aberrant proteins and participates in E6/E6-AP-induced p53/TP53 ubiquitination. UBE2D1 facilitates ubiquitination of PEX5 and auto-ubiquitination of STUB1, TRAF6, and TRIM63/MURF1. It ubiquitinates STUB1-associated HSP90AB1 in vitro, highlighting involvement in cellular pathways. Lacking inherent specificity for any ubiquitin lysine residue, UBE2D1's dynamic nature in ubiquitin modification processes is notable. Its essential role in viral activation of IRF3 and mediation of CYP3A4 polyubiquitination emphasizes multifaceted contributions to cellular function. UBE2D1 Protein, Human (GST) is the recombinant human-derived UBE2D1 protein, expressed by E. coli, with N-GST labeled tag. The total length of UBE2D1 Protein, Human (GST) is 147 a.a., with molecular weight of ~40.0 kDa.
The UBA5 protein activates UFM1 in ufmylation, linking the C-terminal glycine residue of UFM1 to a cysteine residue in E1. UBA5 Protein, Human (His) is the recombinant human-derived UBA5 protein, expressed by E. coli , with N-6*His labeled tag.
Ubiquitin-conjugating enzyme E2 D3 (UBE2D3) is an E3 ubiquitin protein ligase. UBE2D3 is able to accept ubiquitin from specific E2 ubiquitin-conjugating enzymes and transfer it to substrates, often promoting its degradation by the proteasome. UBE2D3 Protein, Human is the recombinant human-derived UBE2D3 protein, expressed by E. coli , with tag free. The total length of UBE2D3 Protein, Human is 147 a.a., with molecular weight of ~15.0 kDa.
Ubiquitin/ISG15-Conjugating Enzyme E2 L6; Retinoic Acid-Induced Gene B Protein; RIG-B; UbcH8; Ubiquitin Carrier Protein L6; Ubiquitin-Protein Ligase L6; UBE2L6; UBCH8
Human
E. coli
The UBE2L6 protein plays a key role in cell regulation by catalyzing the covalent attachment of ubiquitin or ISG15 to other proteins. Notably, it plays a role in E6/E6-AP-induced ubiquitination of p53/TP53, a core process in regulating cellular responses to stress and DNA damage. UBE2L6 Protein, Human (His) is the recombinant human-derived UBE2L6 protein, expressed by E. coli , with C-6*His labeled tag. The total length of UBE2L6 Protein, Human (His) is 153 a.a., with molecular weight of ~17.0 kDa.
UBB proteins are central regulators of the formation of covalently linked isopeptide bonds in different states: monoubiquitin, polyubiquitin chains, or linear polyubiquitin. UBB Protein, Human is the recombinant human-derived UBB protein, expressed by E. coli , with tag free. The total length of UBB Protein, Human is 76 a.a., with molecular weight of ~7.0 kDa.
UCHL3 Protein, a ubiquitin carboxyl-terminal hydrolase, is responsible for protein degradation and regulation of cellular processes. It is prominently expressed in the testes and plays a crucial role in spermatogenesis. UCHL3 Protein's involvement in male fertility and its potential as a therapeutic target in reproductive disorders make it a subject of interest in reproductive medicine. UCHL3 Protein, Human (His) is the recombinant human-derived UCHL3 protein, expressed by E. coli , with C-6*His labeled tag. The total length of UCHL3 Protein, Human (His) is 230 a.a., with molecular weight of ~25.0 kDa.
UBE2A cooperates with the E3 enzyme BRE1 to promote the attachment of ubiquitin to proteins, specifically histone H2B at "Lys-120", forming H2BK120ub1. This modification serves as a tag for transcriptional activation, RNA polymerase II elongation, telomeric silencing, and is critical for the formation of H3K4me and H3K79me. UBE2A Protein, Human (GST-His) is the recombinant human-derived UBE2A protein, expressed by E. coli , with N-6*His, N-GST labeled tag. The total length of UBE2A Protein, Human (GST-His) is 152 a.a., with molecular weight of ~52.0 kDa.
