Small ubiquitin-related modifier 1 (UniProt: P63165; also known as SUMO-1, GAP-modifying protein 1, GMP1, SMT3 homolog 3, Sentrin, Ubiquitin-homology domain protein PIC1, Ubiquitin-like protein SMT3C, Smt3C, Ubiquitin-like protein UBL1) is encoded by the SUMO1 (also known as SMT3C, SMT3H3, UBL1, OK/SW-cl.43) gene (Gene ID: 7341) in human. SUMO-1 is a ubiquitin-like protein that can be covalently attached to proteins as a monomer or a lysine-linked polymer. Covalent attachment via an isopeptide bond to its substrates requires prior activation by the E1 complex SAE1-SAE2 and linkage to the E2 enzyme UBE2I, and can be promoted by E3 ligases such as PIAS1-4, RANBP2 or CBX4. This post-translational modification on lysine residues of proteins plays a crucial role in many cellular processes, such as nuclear transport, DNA replication and repair, mitosis and signal transduction. SUMO-1 can also covalently attach to the voltage-gated potassium channel KCNB1; this modulates the gating characteristics of KCNB1. Polymeric SUMO-1 chains are shown to be susceptible to polyubiquitination, which functions as a signal for proteasomal degradation of modified proteins. Two isoforms of SUMO-1 have been reported that are produced by alternative splicing. Mutations in SUMO1 gene are known to cause non-syndromic orofacial cleft 10, which is a birth defect consisting of cleft lips with or without cleft palate.

~17 kDa observed; 11.56 kDa calculated. SUMO-1/RanGAP1 band is observed AT ~ 75 kDa Uncharacterized bands may be observed in some lysate(s).

His-tagged full length human recombinant Small ubiquitin-related modifier 1 (SUMO-1).

Anti-SUMO-1, clone 21C7, Cat. No. MABS2071, is a mouse monoclonal antibody that detects Small ubiquitin-related modifier 1 (SUMO-1) and has been tested for use in Immunocytochemistry, Immunohistochemistry, Immunofluorescence, Immunoprecipitation, and Western Blotting.

Immunohistochemistry Analysis: A representative lot detected SUMO-1 in Immunohistochemistry applications (Rogers, R.S., et. al. (2004). Chromosoma. 113(5):233-43; Costa, M.W., et. al. (2011). PLoA One. 6(9):e24812).

Immunocytochemistry Analysis: A representative lot detected SUMO-1 in Immunocytochemistry applications (Matunis, M.J., et. al. (1996). J Cell Biol. 135(6 Pt 1):1457-70; Zhang, X.D., et. al. (2008). Mol Cell. 29(6):729-41).

Immunoprecipitation Analysis: A representative lot immunopprecipitated SUMO-1 in Immunoprecipitation applications (Costa, M.W., et. al. (2011). PLoA One. 6(9):e24812; Becker, J., et. al. (2013). Nat Struct Mol Biol. 20(4):525-31; Girach, F., et. al. (2013). Cell Rep. 5(5):1294-301; Chanda, A., et. al. (2017). PLoS One. 12(5):e0177639).

Western Blotting Analysis: A representative lot detected SUMO-1 in Western Blotting applications (Zhang, X.D., et. al. (2008). Mol Cell. 29(6):729-41; Matunis, M.J., et. al. (1996). J Cell Biol. 135(6 Pt 1):1457-70; Rogers, R.S., et. al. (2004). Chromosoma. 113(5):233-43; Costa, M.W., et. al. (2011). PLoA One. 6(9):e24812; Becker, J., et. al. (2013). Nat Struct Mol Biol. 20(4):525-31).

Immunofluorescence Analysis: A representative lot detected SUMO-1 in Immunofluorescence applications (Girach, F., et. al. (2013). Cell Rep. 5(5):1294-301; Rogers, R.S., et. al. (2004). Chromosoma. 113(5):233-43; Matunis, M.J., et. al. (1996). J Cell Biol. 135(6 Pt 1):1457-70).

Research Category
Signaling

Clone 21C7 detects SUMO-1 in multiple species. It targets an epitope with in 11 amino acids from the internal region.

Protein G purified

Format: Purified

Purified mouse monoclonal antibody IgG2b in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

Stable for 1 year at 2-8°C from date of receipt.

Evaluated by Western Blotting in HCT116 cell lysate.

Western Blotting Analysis: 4 µg/mL of this antibody detected SUMO-1 in HCT116 cell lysate.

Concentration: Please refer to lot specific datasheet.

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