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- Table of Contents
Facts about Paraspeckle component 1.
Regulates the circadian clock by repressing the transcriptional activator activity of this CLOCK-ARNTL/BMAL1 heterodimer (By similarity). Together with NONO, required for the formation of atomic paraspeckles.
Human | |
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Gene Name: | PSPC1 |
Uniprot: | Q8WXF1 |
Entrez: | 55269 |
Belongs to: |
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PSPC family |
FLJ33554; paraspeckle component 1; paraspeckle protein 1; PSP1
Mass (kDA):
58.744 kDA
Human | |
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Location: | 13q12.11 |
Sequence: | 13; NC_000013.11 (19674752..19783036, complement) |
Expressed in pancreas, kidney, skeletal muscle, liver, lung, placenta, brain and heart.
Nucleus, nucleolus. Nucleus matrix. Cytoplasm. Nucleus speckle. In punctate subnuclear structures often located adjacent to splicing speckles, called paraspeckles. Colocalizes with NONO and SFPQ in paraspeckles and perinucleolar caps in an RNA-dependent manner. May cycle between paraspeckles and nucleolus. In telophase, when daughter nuclei form, localizes to perinucleolar caps.
PMID: 11790299 by Fox A.H., et al. Paraspeckles: a novel nuclear domain.
PMID: 16148043 by Fox A.H., et al. P54nrb forms a heterodimer with PSP1 that localizes to paraspeckles in an RNA-dependent manner.