Serine/threonine kinase involved in the regulation of key cellular processes including the cell cycle, nuclear condensation, transcription regulation, and DNA damage response (PubMed:14645249, PubMed:18617507, PubMed:19103756, PubMed:33076429). Controls chromatin organization and remodeling by mediating phosphorylation of histone H3 on 'Thr-4' and histone H2AX (H2aXT4ph) (PubMed:31527692, PubMed:37179361). It also phosphorylates KAT5 in response to DNA damage, promoting KAT5 association with chromatin and histone acetyltransferase activity (PubMed:33076429). Is involved in the regulation of cell cycle progression of neural progenitors, and is required for proper cortical neuronal migration (By similarity). Is involved in neurite elongation and branching in motor neurons, and has an essential role in Cajal bodies assembly, acting through COIL phosphorylation and the control of coilin degradation (PubMed:21920476, PubMed:31090908, PubMed:31527692). Involved in Golgi disassembly during the cell cycle: following phosphorylation by PLK3 during mitosis, it is required to induce Golgi fragmentation (PubMed:19103756). Phosphorylates BANF1: disrupts its ability to bind DNA, reduces its binding to LEM domain-containing proteins and causes its relocalization from the nucleus to the cytoplasm (PubMed:16495336). Phosphorylates TP53BP1 and p53/TP53 on 'Thr-18', preventing the interaction between p53/TP53 and MDM2 (PubMed:10951572, PubMed:31527692). Phosphorylates ATF2 which activates its transcriptional activity (PubMed:15105425). Phosphorylates JUN (PubMed:31527692).
Pontocerebellar hypoplasia 1A
PCH1A
A form of pontocerebellar hypoplasia, a disorder characterized by structural defects of the pons and cerebellum, evident upon brain imaging. PCH1A is an autosomal recessive form characterized by an abnormally small cerebellum and brainstem, central and peripheral motor dysfunction from birth, gliosis and spinal cord anterior horn cells degeneration resembling infantile spinal muscular atrophy. Additional features include muscle hypotonia, congenital contractures and respiratory insufficiency that is evident at birth.
None
The disease is caused by variants affecting the gene represented in this entry.
Neuronopathy, distal hereditary motor, autosomal recessive 10
HMNR10
A form of distal hereditary motor neuronopathy, a heterogeneous group of neuromuscular diseases caused by selective degeneration of motor neurons in the anterior horn of the spinal cord, without sensory deficit in the posterior horn. HMNR10 is a slowly progressive form characterized by distal muscle weakness and atrophy predominantly affecting the lower limbs, and resulting in gait abnormalities. Upper limb involvement is seen in some patients. HMNR10 has mostly juvenile or adult onset, although symptoms may manifest in infancy or childhood in some patients.
None
The disease is caused by variants affecting the gene represented in this entry.
Autophosphorylated at various serine and threonine residues (PubMed:11883897, PubMed:14645249, PubMed:19103756, PubMed:21543316). Autophosphorylation does not impair its ability to phosphorylate p53/TP53 (PubMed:11883897). Phosphorylation by PLK3 leads to induction of Golgi fragmentation during mitosis (PubMed:19103756).
Belongs to the protein kinase superfamily. CK1 Ser/Thr protein kinase family. VRK subfamily.
Widely expressed. Highly expressed in fetal liver, testis and thymus.
Serine/threonine-protein kinase VRK1, Vaccinia-related kinase 1, VRK1
Proteins
Neuroscience
45476Da
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ab211358
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