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Function

Acts as a linker between gene transcription and histone H2B monoubiquitination at 'Lys-120' (H2BK120ub1) (PubMed:21329877). Interacts with the RNA polymerase II transcriptional machinery via its WW domain and with RNF20-RNF40 via its coiled coil region, thereby linking and regulating H2BK120ub1 and gene transcription (PubMed:21329877). Regulates the cell-cycle checkpoint activation in response to DNA damage (PubMed:21329877). Positive regulator of amino acid starvation-induced autophagy (PubMed:22354037). Also acts as a negative regulator of basal autophagy (PubMed:26812014). Positively regulates MTOR activity by promoting, in an energy-dependent manner, the assembly of the TTT complex composed of TELO2, TTI1 and TTI2 and the RUVBL complex composed of RUVBL1 and RUVBL2 into the TTT-RUVBL complex. This leads to the dimerization of the mTORC1 complex and its subsequent activation (PubMed:26812014). May negatively regulate the ubiquitin proteasome pathway (PubMed:21329877).

Involvement in disease

DeSanto-Shinawi syndrome

DESSH

An autosomal dominant syndrome characterized by developmental delay, hypotonia, behavioral problems, eye abnormalities, constipation, feeding difficulties, seizures and sleep problems. Patients exhibit dysmorphic features, including broad/prominent forehead, synophrys and/or bushy eyebrows, depressed nasal bridge and bulbous nasal tip. Additional variable features are posteriorly rotated ears, hirsutism, deep-set eyes, thin upper lip, inverted nipples, hearing loss and branchial cleft anomalies.

None

The disease is caused by variants affecting the gene represented in this entry.

Defects in WAC are the cause of a form of intellectual disability characterized by hypotonia, behavioral problems and distinctive facial dysmorphisms including a square-shaped face, deep set eyes, long palpebral fissures, and a broad mouth and chin.

Post-translational modifications

Phosphorylated on tyrosine residues.

Cellular localization

  • Nucleus speckle
  • Nucleus
  • In distinct nuclear speckles. Colocalizes with pre-mRNA processing complexes.

Alternative names

KIAA1844, WAC, WW domain-containing adapter protein with coiled-coil

Target type

Proteins

Primary research area

Epigenetics

Molecular weight

70724Da

We found 1 product in 1 category

Primary Antibodies

Target

Application

Reactive species

Search our catalogue for 'WAC' (1)

Products