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HNRNPA1 citrulline R97

Function

Involved in the packaging of pre-mRNA into hnRNP particles, transport of poly(A) mRNA from the nucleus to the cytoplasm and modulation of splice site selection (PubMed:17371836). Plays a role in the splicing of pyruvate kinase PKM by binding repressively to sequences flanking PKM exon 9, inhibiting exon 9 inclusion and resulting in exon 10 inclusion and production of the PKM M2 isoform (PubMed:20010808). Binds to the IRES and thereby inhibits the translation of the apoptosis protease activating factor APAF1 (PubMed:31498791). May bind to specific miRNA hairpins (PubMed:28431233).

(Microbial infection) May play a role in HCV RNA replication.

(Microbial infection) Cleavage by Enterovirus 71 protease 3C results in increased translation of apoptosis protease activating factor APAF1, leading to apoptosis.

Involvement in disease

Inclusion body myopathy with early-onset Paget disease with or without frontotemporal dementia 3

IBMPFD3

An autosomal dominant disease characterized by disabling muscle weakness clinically resembling to limb girdle muscular dystrophy, osteolytic bone lesions consistent with Paget disease, and premature frontotemporal dementia. Clinical features show incomplete penetrance.

None

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

Amyotrophic lateral sclerosis 20

ALS20

A neurodegenerative disorder affecting upper motor neurons in the brain and lower motor neurons in the brain stem and spinal cord, resulting in fatal paralysis. Sensory abnormalities are absent. The pathologic hallmarks of the disease include pallor of the corticospinal tract due to loss of motor neurons, presence of ubiquitin-positive inclusions within surviving motor neurons, and deposition of pathologic aggregates. The etiology of amyotrophic lateral sclerosis is likely to be multifactorial, involving both genetic and environmental factors. The disease is inherited in 5-10% of the cases.

None

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

Myopathy, distal, 3

MPD3

An autosomal dominant skeletal muscle disorder characterized by adult onset of slowly progressive distal muscular weakness and atrophy affecting the upper and lower limbs, leading to difficulties using the hands and walking difficulties. Proximal muscle involvement may occur later in the disease, but patients typically remain ambulatory. Muscle biopsy shows myopathic changes with rimmed vacuoles.

None

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

Post-translational modifications

Arg-194, Arg-206 and Arg-225 are dimethylated, probably to asymmetric dimethylarginine.

Sumoylated.

Cellular localization

  • Nucleus
  • Cytoplasm
  • Localized in cytoplasmic mRNP granules containing untranslated mRNAs. Shuttles continuously between the nucleus and the cytoplasm along with mRNA. Component of ribonucleosomes (PubMed:17289661).
  • Cytoplasm
  • (Microbial infection) In the course of viral infection, colocalizes with HCV NS5B at speckles in the cytoplasm in a HCV-replication dependent manner.
  • Nucleus
  • (Microbial infection) SARS coronavirus-2/SARS-CoV-2 ORF6 protein increases accumulation to the nucleus.

Alternative names

HNRPA1, HNRNPA1, Heterogeneous nuclear ribonucleoprotein A1, hnRNP A1, Helix-destabilizing protein, Single-strand RNA-binding protein, hnRNP core protein A1

Target type

Proteins

Primary research area

Epigenetics

Other research areas

  • Neuroscience

Molecular weight

38747Da

We found 2 products in 1 category

Primary Antibodies

Target

Application

Reactive species

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