Recombinant Human Small ubiquitin-related modifier 4 (SUMO4)

Uniprot Id

Q6EEV6

Target Species

Human

Target Name

SUMO4

Target Full Name

Small ubiquitin-related modifier 4

Target Function

Ubiquitin-like protein which can be covalently attached to target lysines as a monomer. Does not seem to be involved in protein degradation and may modulate protein subcellular localization, stability or activity. Upon oxidative stress, conjugates to various anti-oxidant enzymes, chaperones, and stress defense proteins. May also conjugate to NFKBIA, TFAP2A and FOS, negatively regulating their transcriptional activity, and to NR3C1, positively regulating its transcriptional activity. Covalent attachment to its substrates requires prior activation by the E1 complex SAE1-SAE2 and linkage to the E2 enzyme UBE2I.

Target Protein Families

Ubiquitin family, SUMO subfamily

Target Tissue Specificity

Expressed mainly in adult and embryonic kidney. Expressed at various levels in immune tissues, with the highest expression in the lymph node and spleen.

Target Research Area

Cell Biology

Target Synonyms

dJ281H8.4; IDDM5; Small ubiquitin like modifier 4 protein; Small ubiquitin-like protein 4; Small ubiquitin-related modifier 4; SMT3 suppressor of mif two 3 homolog 2; SMT3 suppressor of mif two 3 homolog 4 (S. cerevisiae); SMT3H4; SUMO 4; SUMO-4; SUMO4; SUMO4_HUMAN

Target Background

This gene is a member of the SUMO gene family. This family of genes encode small ubiquitin-related modifiers that are attached to proteins and control the target proteins' subcellular localization, stability, or activity. The protein described in this record is located in the cytoplasm and specifically modifies IKBA, leading to negative regulation of NF-kappa-B-dependent transcription of the IL12B gene. A specific polymorphism in this SUMO gene, which leads to the M55V substitution, has been associated with type I diabetes. The RefSeq contains this polymorphism.