Recombinant Human E3 ubiquitin-protein ligase HACE1 (HACE1), Truncated

Uniprot Id

Q8IYU2

Target Species

Human

Target Name

HACE1

Target Full Name

E3 ubiquitin-protein ligase HACE1

Target Function

E3 ubiquitin-protein ligase involved in Golgi membrane fusion and regulation of small GTPases. Acts as a regulator of Golgi membrane dynamics during the cell cycle: recruited to Golgi membrane by Rab proteins and regulates postmitotic Golgi membrane fusion. Acts by mediating ubiquitination during mitotic Golgi disassembly, ubiquitination serving as a signal for Golgi reassembly later, after cell division. Specifically interacts with GTP-bound RAC1, mediating ubiquitination and subsequent degradation of active RAC1, thereby playing a role in host defense against pathogens. May also act as a transcription regulator via its interaction with RARB.

Target Involvement

Spastic paraplegia and psychomotor retardation with or without seizures (SPPRS)

Target Subcellular Location

Golgi apparatus, Golgi stack membrane. Cytoplasm. Endoplasmic reticulum. Note=A significant portion localizes to the endoplasmic reticulum. Targeted to Golgi membrane via its interaction with Rab proteins.

Target Tissue Specificity

Expressed in multiple tissues including heart, brain and kidney.

Target Synonyms

HACE1; KIAA1320E3 ubiquitin-protein ligase HACE1; EC 2.3.2.26; HECT domain and ankyrin repeat-containing E3 ubiquitin-protein ligase 1; HECT-type E3 ubiquitin transferase HACE1

Target Background

This gene encodes a HECT domain and ankyrin repeat-containing ubiquitin ligase. The encoded protein is involved in specific tagging of target proteins, leading to their subcellular localization or proteasomal degradation. The protein is a potential tumor suppressor and is involved in the pathophysiology of several tumors, including Wilm's tumor.