Detects endogenous human and mouse proteins modified with SUMO2, 3, or 4 in Western blots. Because of the high level of sequence homology, this antibody has equivalent reactivity to SUMO2, SUMO3, and SUMO4 based in Western blots with recombinant SUMO protein. Cross-reactivity to recombinant human SUMO1 was minimal in Western blots.
Polyclonal Goat IgG
E. coli-derived recombinant human SUMO2 Ala2-Tyr95 Accession # P61956
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
Detection of Human SUMO2/3/4 by Western Blot.
Western blot shows lysates of K562 human chronic myelogenous leukemia cell line and DU145 human prostate carcinoma cell line. PVDF membrane was probed with 1 µg/mL of Human/Mouse SUMO2/3/4 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3020) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF109). A specific band was detected for SUMO2/3/4 at approximately 12 kDa (as indicated) along with multiple sumoylated proteins. This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 4.
Preparation and Storage
Reconstitute at 0.2 mg/mL in sterile PBS.
Reconstitution Buffer Available
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.
Small Ubiquitin-like Modifiers (SUMOs) are a family of small, related proteins that can be enzymatically attached to a target protein by a post-translational modification process termed sumoylation. Unlike ubiquitination, which targets proteins for degradation, sumoylation participates in a number of cellular processes, such as nuclear transport, transcriptional regulation, apoptosis, and protein stability. All SUMO proteins share the conserved ubiquitin domain and the C-terminal diglycine cleavage/attachment site. Human SUMO2, also known as Sentrin2 and SMT3B is synthesized as a 95 amino acid (aa), 11 kDa propeptide that contains a two aa C-terminal prosegment, and an 18 aa N-terminal protein interacting region (aa 33‑50). Following prosegment cleavage, the C-terminal glycine is enzymatically attached to a lysine on a target protein. Human SUMO2 shares 100% sequence identity to SUMO-2 from mouse. SUMO2 also has very high sequence homology to SUMO3 and SUMO4, 86 % and 85%, respectively. SUMO2 shares only 44% sequence identity to SUMO1.
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