1. Recombinant Proteins
  2. Ubiquitin Related Proteins
  3. Ubiquitin Enzymes
  4. E2 Enzymes

Ubiquitin (Ub) or ubiquitin-like proteins (UBLs) carboxyl termini are attached to other proteins, or in some cases lipids, generally through E1-E2-E3 multienzyme cascades. Ubiquitin-conjugating enzymes (E2s) are responsible for transferring Ub/UBLs to substrate proteins and often function with a single or limited number of E3 ligases, although in some cases no E3 is required. Members of the family of ubiquitin-conjugating enzymes (E2s) are characterized by the presence of a highly conserved ∼150 amino acid residues ubiquitin-conjugating catalytic (UBC) fold. The UBC domains are ~35% conserved among different family members and provide a binding platform for E1s, E3s, and the activated Ub/UBL. Within this domain, a catalytic cysteine is embedded that accepts the activated ATP-activated Ub/UBLs via a covalently thioester bond, prior to interaction with E3 ligases and subsequent substrate conjugation. The majority of Ub/UBLs use particular E2s for conjugation, but in some cases E2s are shared, such as between the ubiquitin and ISG15-conjugation pathways.

Cat. No. Product Name / Synonyms Species Source
  • HY-P7617
    ATG3 Protein, Human

    rHuATG3; Ubiquitin-like-conjugating enzyme ATG3; Autophagy-related protein 3; APG3-like; ATG3; APG3; APG3L

    Human E. coli
    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.
  • HY-P71399
    UBE2D1 Protein, Human (GST)

    Ubiquitin-conjugating enzyme E2 D1; Stimulator of Fe transport; SFT; UBC4/5 homolog; UbcH5; Ubiquitin carrier protein D1; Ubiquitin-conjugating enzyme E2(17)KB 1; Ubiquitin-conjugating enzyme E2-17 kDa 1; Ubiquitin-protein ligase D1; SFT; UBC5A; UBCH5; UBCH5A

    Human E. coli
    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.
  • HY-P70998
    UBE2D3 Protein, Human

    Ubiquitin-conjugating enzyme E2 D3; Ubiquitin carrier protein D3; Ubiquitin-conjugating enzyme E2(17)KB 3; Ubiquitin-conjugating enzyme E2-17 kDa 3; Ubiquitin-protein ligase D3; UBE2D3 and UBCH5C.

    Human E. coli
    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.
  • HY-P71397
    UBE2A Protein, Human (GST-His)

    Ubiquitin-Conjugating Enzyme E2 A; RAD6 Homolog A; HR6A; hHR6A; Ubiquitin Carrier Protein A; Ubiquitin-Protein Ligase A; UBE2A; RAD6A

    Human E. coli
    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.
  • HY-P71401
    UBE2G2 Protein, Human (GST)

    Ubiquitin-Conjugating Enzyme E2 G2; Ubiquitin Carrier Protein G2; Ubiquitin-Protein Ligase G2; UBE2G2

    Human E. coli
    UBE2G2 Protein, a vital ubiquitination component, accepts ubiquitin from the E1 complex, catalyzing its covalent attachment to various proteins, with a preference for 'Lys-48'-linked polyubiquitination. Its specificity in shaping ubiquitin chains underscores its role in cellular processes. Intricately associated with endoplasmic reticulum-associated degradation (ERAD), UBE2G2 maintains cellular homeostasis by regulating protein turnover. Indispensable for sterol-induced ubiquitination of 3-hydroxy-3-methylglutaryl coenzyme A reductase, it facilitates subsequent proteasomal degradation. UBE2G2 Protein, Human (GST) is the recombinant human-derived UBE2G2 protein, expressed by E. coli, with N-GST labeled tag. The total length of UBE2G2 Protein, Human (GST) is 165 a.a., with molecular weight of ~43.0 kDa.
  • HY-P71402
    UBE2H Protein, Human (GST)

    Ubiquitin-Conjugating Enzyme E2 H; UbcH2; Ubiquitin Carrier Protein H; Ubiquitin-Conjugating Enzyme E2-20K; Ubiquitin-Protein Ligase H; UBE2H

    Human E. coli
    UBE2H Protein, a crucial participant in cellular ubiquitination, transfers ubiquitin from the E1 complex to various proteins, including MAEA of the CTLH E3 ubiquitin-protein ligase complex. Versatile in vitro, UBE2H catalyzes both 'Lys-11'- and 'Lys-48'-linked polyubiquitination, showcasing its involvement in diverse ubiquitin-related processes. Notably, it demonstrates the capability to ubiquitinate histone H2A in vitro. UBE2H Protein, Human (GST) is the recombinant human-derived UBE2H protein, expressed by E. coli, with N-GST labeled tag. The total length of UBE2H Protein, Human (GST) is 183 a.a., with molecular weight of ~50.0 kDa.
  • HY-P71403
    UBE2I Protein, Human (GST)

    SUMO-Conjugating Enzyme UBC9; SUMO-Protein Ligase; Ubiquitin Carrier Protein 9; Ubiquitin Carrier Protein I; Ubiquitin-Conjugating Enzyme E2 I; Ubiquitin-Protein Ligase I; p18; UBE2I; UBC9; UBCE9

    Human E. coli
    UBE2I Protein, a key participant in protein sumoylation, accepts ubiquitin-like proteins SUMO1, SUMO2, SUMO3, SUMO4, and SUMO1P1/SUMO5 from the UBLE1A-UBLE1B E1 complex. Teaming up with E3 ligases like RANBP2, CBX4, and ZNF451, UBE2I catalyzes the covalent attachment of these SUMO proteins to target proteins, including critical substrates FOXL2 and KAT5. Its enzymatic activity extends to forming poly-SUMO chains, influencing diverse cellular processes and playing a pivotal role in specific protein modifications, such as sumoylation of p53/TP53 at 'Lys-386' and ERCC6. UBE2I Protein, Human (GST) is the recombinant human-derived UBE2I protein, expressed by E. coli, with N-GST labeled tag. The total length of UBE2I Protein, Human (GST) is 158 a.a., with molecular weight of ~40.0 kDa.
  • HY-P71405
    UBE2K Protein, Human (GST)

    Ubiquitin-Conjugating Enzyme E2 K; Huntingtin-Interacting Protein 2; HIP-2; Ubiquitin Carrier Protein; Ubiquitin-Conjugating Enzyme E2-25 kDa; Ubiquitin-Conjugating Enzyme E2(25K); Ubiquitin-Conjugating Enzyme E2-25K; Ubiquitin-Protein Ligase; UBE2K; HIP2; LIG

    Human E. coli
    UBE2K Protein, a vital component of the ubiquitin-proteasome system, functions as an E2 ubiquitin-conjugating enzyme, crucial for attaching ubiquitin to diverse substrates. In vitro, UBE2K catalyzes 'Lys-48'-linked polyubiquitin chains, particularly with or without the BRCA1-BARD1 E3 ligase complex. It participates in the selective degradation of short-lived proteins, including endoplasmic reticulum-associated degradation (ERAD) of misfolded lumenal proteins. UBE2K exhibits ubiquitination activity towards targets like huntingtin and p53/TP53, and potentially NF-kappa-B. Its role in viral infections involves contributing to MHC class I heavy chain degradation and participating in HPV E7 protein-dependent degradation of RB1. UBE2K Protein, Human (GST) is the recombinant human-derived UBE2K protein, expressed by E. coli, with N-GST labeled tag. The total length of UBE2K Protein, Human (GST) is 200 a.a., with molecular weight of ~45.0 kDa.
  • HY-P71406
    UBE2M Protein, Human

    NEDD8-conjugating enzyme Ubc12; NEDD8 carrier protein; NEDD8 protein ligase; Ubiquitin-conjugating enzyme E2 M; UBC12; UBE2M;

    Human E. coli
    UBE2M Protein is a crucial mediator in the ubiquitin-like protein NEDD8 conjugation pathway. It accepts NEDD8 from the UBA3-NAE1 E1 complex, covalently attaching it to target proteins like CUL1, CUL2, CUL3, and CUL4, particularly interacting with the E3 ubiquitin ligase RBX1. This specificity in neddylating specific targets suggests a pivotal role in regulating cellular processes, notably contributing to cell proliferation. UBE2M Protein, Human is the recombinant human-derived UBE2M protein, expressed by E. coli, with tag free. The total length of UBE2M Protein, Human is 183 a.a., with molecular weight of ~25.0 kDa.
  • HY-P77271
    UBE2G1 Protein, Human

    Ubiquitin-conjugating enzyme E2 G1; E217K; UBC7; UBE2G1; UBE2G

    Human E. coli
    UBE2G1 Protein, a crucial ubiquitin-proteasome system player, acts as an E2 ubiquitin-conjugating enzyme, facilitating ubiquitin attachment to diverse protein substrates. In vitro, UBE2G1 demonstrates catalytic competence in 'Lys-48' and 'Lys-63'-linked polyubiquitination reactions. This multifaceted enzyme is implicated in potential roles, including the degradation of muscle-specific proteins, emphasizing its involvement in cellular processes related to protein turnover. Additionally, UBE2G1 mediates the polyubiquitination of CYP3A4, a cytochrome P450 enzyme, underscoring its significance in regulating specific cellular pathways. UBE2G1 Protein, Human is the recombinant human-derived UBE2G1 protein, expressed by E. coli, with tag free. The total length of UBE2G1 Protein, Human is 170 a.a., with molecular weight of ~19.5 kDa.
  • HY-P77272
    UBE2W Protein, Human (His)

    Ubiquitin-conjugating enzyme E2 W; UBC-16; Ubiquitin-protein ligase W; UBC16

    Human E. coli
    UBE2W Protein, a versatile ubiquitin-conjugating enzyme, accepts ubiquitin from the E1 complex, catalyzing its covalent attachment to diverse substrates. Notably, UBE2W uniquely monoubiquitinates N-termini, including ATXN3, MAPT/TAU, POLR2H/RPB8, and STUB1/CHIP, displaying specificity for disordered N-termini. This monoubiquitination is crucial for degrading misfolded chaperone substrates, as UBE2W mediates STUB1/CHIP monoubiquitination, limiting ubiquitin chain length. Activated by UV irradiation, UBE2W collaborates with FANCL, catalyzing monoubiquitination of FANCD2 in the Fanconi anemia complex, a key step in the DNA damage response pathway. Additionally, UBE2W flexibly catalyzes 'Lys-11'-linked polyubiquitination in vitro. UBE2W Protein, Human (His) is the recombinant human-derived UBE2W protein, expressed by E. coli, with N-His labeled tag. The total length of UBE2W Protein, Human (His) is 151 a.a., with molecular weight of ~18 kDa.
  • HY-P76688A
    UBE2F Protein, Human (His, Solution)

    NEDD8-conjugating enzyme UBE2F; NCE2

    Human E. coli
  • HY-P71398
    UBE2B Protein, Human (HEK293, His)

    Ubiquitin-Conjugating Enzyme E2 B; RAD6 Homolog B; HR6B; hHR6B; Ubiquitin Carrier Protein B; Ubiquitin-Conjugating Enzyme E2-17 kDa; Ubiquitin-Protein Ligase B; UBE2B; RAD6B

    Human HEK293
    UBE2B Protein, a key ubiquitination player, functions as an E2 ubiquitin-conjugating enzyme, accepting ubiquitin from the E1 complex and catalyzing covalent attachment to proteins. Teaming with BRE1 (RNF20 and/or RNF40) E3 enzyme, UBE2B plays a pivotal role in transcriptional regulation by catalyzing histone H2B monoubiquitination at 'Lys-120' (H2BK120ub1). This modification tags various epigenetic processes and is essential for H3K4me and H3K79me formation. UBE2B exhibits versatile ubiquitin chain linkages, mediating 'Lys-11', 'Lys-48', and 'Lys-63'-linked polyubiquitination in vitro. It also plays a crucial role in postreplication repair of UV-damaged DNA, forming the UBE2B-RAD18 ubiquitin ligase complex with RAD18 E3 ligase, which mono-ubiquitinates DNA-associated PCNA on 'Lys-164'. The diverse functions of UBE2B suggest potential involvement in neurite outgrowth. UBE2B Protein, Human (HEK293, His) is the recombinant human-derived UBE2B protein, expressed by HEK293, with C-6*His labeled tag. The total length of UBE2B Protein, Human (HEK293, His) is 152 a.a., with molecular weight of ~17.0 kDa.
  • HY-P71020
    UBE2L6 Protein, Human (His)

    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.
  • HY-P71400
    UBE2D4 Protein, Human (GST)

    Ubiquitin-Conjugating Enzyme E2 D4; HBUCE1; Ubiquitin Carrier Protein D4; Ubiquitin-Protein Ligase D4; UBE2D4; UBCH5D

    Human E. coli
    UBE2D4 Protein, a vital ubiquitin-proteasome system component, acts as an E2 ubiquitin-conjugating enzyme, accepting ubiquitin from the E1 complex and catalyzing its covalent attachment to proteins. In vitro, UBE2D4 demonstrates versatility by promoting polyubiquitination with all seven ubiquitin Lys residues, potentially favoring 'Lys-11' and 'Lys-48'-linked polyubiquitination. This dynamic ubiquitin chain range suggests UBE2D4's involvement in diverse cellular processes and regulatory pathways, highlighting its significance in the intricate network of protein degradation and turnover. UBE2D4 Protein, Human (GST) is the recombinant human-derived UBE2D4 protein, expressed by E. coli, with N-GST labeled tag. The total length of UBE2D4 Protein, Human (GST) is 147 a.a., with molecular weight of ~40.0 kDa.
  • HY-P71404
    UBE2J2 Protein, Human (GST)

    Ubiquitin-Conjugating Enzyme E2 J2; Non-Canonical Ubiquitin-Conjugating Enzyme 2; NCUBE-2; UBE2J2; NCUBE2

    Human E. coli
    The UBE2J2 protein plays a crucial role in cellular processes by catalyzing the covalent attachment of ubiquitin to other proteins. Its function is involved in the selective degradation of misfolded membrane proteins extending into the endoplasmic reticulum (ERAD), as suggested by the similarity of related processes. UBE2J2 Protein, Human (GST) is the recombinant human-derived UBE2J2 protein, expressed by E. coli , with N-GST labeled tag. The total length of UBE2J2 Protein, Human (GST) is 101 a.a., with molecular weight of 30 & 36 kDa, respectively.
  • HY-P71407
    UBE2R2 Protein, Human (His)

    Ubiquitin-Conjugating Enzyme E2 R2; Ubiquitin Carrier Protein R2; Ubiquitin-Conjugating Enzyme E2-CDC34B; Ubiquitin-Protein Ligase R2; UBE2R2; CDC34B; UBC3B

    Human E. coli
    UBE2R2 Protein, a key element in the ubiquitin-proteasome system, operates as an E2 ubiquitin-conjugating enzyme. It accepts ubiquitin from the E1 complex and catalyzes its covalent attachment to diverse protein substrates. In vitro, UBE2R2 displays versatile catalytic activity, facilitating both monoubiquitination and 'Lys-48'-linked polyubiquitination reactions. This implies its potential involvement in various cellular processes, including the targeted degradation of proteins, suggesting a role in the regulation of substrates like katenin. UBE2R2 Protein, Human (His) is the recombinant human-derived UBE2R2 protein, expressed by E. coli, with N-6*His labeled tag. The total length of UBE2R2 Protein, Human (His) is 238 a.a., with molecular weight of ~37.0 kDa.
  • HY-P71408
    UBE2S Protein, Human (GST)

    Ubiquitin-Conjugating Enzyme E2 S; E2-EPF; Ubiquitin Carrier Protein S; Ubiquitin-Conjugating Enzyme E2-24 kDa; Ubiquitin-Conjugating Enzyme E2-EPF5; Ubiquitin-Protein Ligase S; UBE2S; E2EPF

    Human E. coli
    UBE2S Protein, crucial in cellular ubiquitination, accepts ubiquitin from the E1 complex, catalyzing covalent attachment to various proteins. A key contributor to cell cycle regulation, UBE2S catalyzes 'Lys-11'-linked polyubiquitination, essential for anaphase promoting complex/cyclosome (APC/C) function. It plays a crucial role in mitotic progression by elongating 'Lys-11'-linked polyubiquitin chains initiated by UBE2C/UBCH10 on APC/C substrates, facilitating mitotic exit. Implicated in ubiquitination and degradation of VHL, UBE2S promotes polyubiquitination using all seven ubiquitin Lys residues in vitro, excluding 'Lys-48'-linked polyubiquitination, highlighting its versatility. UBE2S Protein, Human (GST) is the recombinant human-derived UBE2S protein, expressed by E. coli, with N-GST labeled tag. The total length of UBE2S Protein, Human (GST) is 222 a.a., with molecular weight of ~50.0 kDa.
  • HY-P71409
    UBE2T Protein, Human (His)

    Ubiquitin-Conjugating Enzyme E2 T; Cell Proliferation-Inducing Gene 50 Protein; Ubiquitin Carrier Protein T; Ubiquitin-Protein Ligase T; UBE2T

    Human E. coli
    UBE2T Protein, an essential ubiquitination component, serves as an E2 ubiquitin-conjugating enzyme, accepting ubiquitin from the E1 complex and catalyzing its covalent attachment to proteins. This multifaceted enzyme catalyzes monoubiquitination, crucial in MMC-induced DNA repair processes. Its significance is highlighted by specific association with the Fanconi anemia complex, collaborating with FANCL for FANCD2 monoubiquitination in the DNA damage response pathway. Beyond DNA repair, UBE2T mediates monoubiquitination of FANCL and FANCI and potentially contributes to BRCA1 ubiquitination and degradation. In vitro, UBE2T promotes various polyubiquitination types, showcasing involvement in diverse ubiquitin-dependent processes. UBE2T Protein, Human (His) is the recombinant human-derived UBE2T protein, expressed by E. coli, with N-6*His labeled tag. The total length of UBE2T Protein, Human (His) is 197 a.a., with molecular weight of 25-30 kDa.
  • HY-P71410
    UBE2V1 Protein, Human (His)

    Ubiquitin-Conjugating Enzyme E2 Variant 1; UEV-1; CROC-1; TRAF6-Regulated IKK Activator 1 Beta Uev1A; UBE2V1; CROC1; UBE2V; UEV1; P/OKcl.19

    Human E. coli
    The UBE2V1 protein does not have intrinsic ubiquitin ligase activity and can cooperate with UBE2N to synthesize non-canonical polyubiquitin chains linked through Lys-63. This type of polyubiquitination activates IKK and mediates NF-kappa-B activation, thereby affecting transcriptional activation, cell cycle progression, and DNA repair. UBE2V1 Protein, Human (His) is the recombinant human-derived UBE2V1 protein, expressed by E. coli , with C-6*His labeled tag. The total length of UBE2V1 Protein, Human (His) is 146 a.a., with molecular weight of ~17.0 kDa.
Cat. No. Product Name Effect Purity