UEV1A Antibody – Rabbit Polyclonal

Ubiquitin-conjugating E2 enzyme variant proteins constitute a distinct subfamily within the E2 protein family. They have sequence similarity to other ubiquitin-conjugating enzymes but lack the conserved cysteine residue that is critical for the catalytic activity of E2s. The protein encoded by this gene is located in the nucleus and can cause transcriptional activation of the human FOS proto-oncogene. It is thought to be involved in the control of differentiation by altering cell cycle behavior. Alternatively spliced transcript variants encoding multiple isoforms have been described for this gene, and multiple pseudogenes of this gene have been identified. Co-transcription of this gene and the neighboring upstream gene generates a rare transcript (Kua-UEV), which encodes a fusion protein comprised of sequence sharing identity with each individual gene product. [provided by RefSeq, Apr 2012]

Function: Has no ubiquitin ligase activity on its own. The UBE2V1-UBE2N heterodimer catalyzes the synthesis of non-canonical poly-ubiquitin chains that are linked through Lys-63. This type of poly-ubiquitination activates IKK and does not seem to involve protein degradation by the proteasome. Plays a role in the activation of NF-kappa-B mediated by IL1B, TNF, TRAF6 and TRAF2. Mediates transcriptional activation of target genes. Plays a role in the control of progress through the cell cycle and differentiation. Plays a role in the error-free DNA repair pathway and contributes to the survival of cells after DNA damage. Promotes TRIM5 capsid-specific restriction activity and the UBE2V1-UBE2N heterodimer acts in concert with TRIM5 to generate 'Lys-63'-linked polyubiquitin chains which activate the MAP3K7/TAK1 complex which in turn results in the induction and expression of NF-kappa-B and MAPK-responsive inflammatory genes. Ref.1 Ref.2 Ref.3 Ref.10 Ref.11 Ref.13 Ref.14

Subunit structure: Heterodimer with UBE2N. Interacts (UBE2V2-UBE2N heterodimer) with the E3 ligase STUB1 (via the U-box domain); the complex has a specific 'Lys-63'-linked polyubiquitination activity. Interacts with TRAF6. Ref.3

Subcellular location: Nucleus. Note: Excluded from the nucleolus. Ref.1 Ref.12

Tissue specificity: Highly expressed in thyroid, pancreas, spinal cord, lymph node, trachea, adrenal gland, bone marrow and pancreas. Detected at low levels in heart, breast, placenta, brain, liver, kidney, stomach and lung. Ref.2 Ref.11

Induction: Down-regulated during differentiation of cultured colon adenocarcinoma cells. Ref.2

Miscellaneous: In human, TMEM189/KUA and UBE2V1/UEV1 are adjacent genes which can produce independent proteins and can also be fused to form a TMEM189-UBE2V1 hybrid protein.

Sequence similarities: Belongs to the ubiquitin-conjugating enzyme family.

Sequence caution: The sequence AAH08944.2 differs from that shown. Reason: Erroneous initiation. The sequence CAC16955.2 differs from that shown. Reason: Erroneous initiation. Translation N-terminally shortened.