CSTF1

Last updated
CSTF1
Identifiers
Aliases CSTF1 , CstF-50, CstFp50, cleavage stimulation factor subunit 1
External IDs OMIM: 600369 MGI: 1914587 HomoloGene: 1012 GeneCards: CSTF1
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001033521
NM_001033522
NM_001324

NM_024199

RefSeq (protein)

NP_001028693
NP_001028694
NP_001315

NP_077161

Location (UCSC) Chr 20: 56.39 – 56.41 Mb Chr 2: 172.21 – 172.22 Mb
PubMed search [3] [4]
Wikidata
View/Edit Human View/Edit Mouse

Cleavage stimulation factor 50 kDa subunit is a protein that in humans is encoded by the CSTF1 gene. [5] [6] [7]

Contents

This gene encodes one of three subunits which combine to form cleavage stimulation factor (CSTF). CSTF is involved in the polyadenylation and 3' end cleavage of pre-mRNAs. Similar to mammalian G protein beta subunits, this protein contains transducin-like repeats. Several transcript variants with different 5' UTR, but encoding the same protein, have been found for this gene. [7]

Interactions

CSTF1 has been shown to interact with BARD1. [6] [8]

Related Research Articles

Polyadenylation is the addition of a poly(A) tail to an RNA transcript, typically a messenger RNA (mRNA). The poly(A) tail consists of multiple adenosine monophosphates; in other words, it is a stretch of RNA that has only adenine bases. In eukaryotes, polyadenylation is part of the process that produces mature mRNA for translation. In many bacteria, the poly(A) tail promotes degradation of the mRNA. It, therefore, forms part of the larger process of gene expression.

<span class="mw-page-title-main">Post-transcriptional modification</span> RNA processing within a biological cell

Transcriptional modification or co-transcriptional modification is a set of biological processes common to most eukaryotic cells by which an RNA primary transcript is chemically altered following transcription from a gene to produce a mature, functional RNA molecule that can then leave the nucleus and perform any of a variety of different functions in the cell. There are many types of post-transcriptional modifications achieved through a diverse class of molecular mechanisms.

Cleavage stimulatory factor or cleavage stimulation factor is a heterotrimeric protein, made up of the proteins CSTF1 (55kDa), CSTF2 (64kDa) and CSTF3 (77kDa), totalling about 200 kDa. It is involved in the cleavage of the 3' signaling region from a newly synthesized pre-messenger RNA (mRNA) molecule. CstF is recruited by cleavage and polyadenylation specificity factor (CPSF) and assembles into a protein complex on the 3' end to promote the synthesis of a functional polyadenine tail, which results in a mature mRNA molecule ready to be exported from the cell nucleus to the cytosol for translation.

Cleavage and polyadenylation specificity factor (CPSF) is involved in the cleavage of the 3' signaling region from a newly synthesized pre-messenger RNA (pre-mRNA) molecule in the process of gene transcription. In eukaryotes, messenger RNA precursors (pre-mRNA) are transcribed in the nucleus from DNA by the enzyme, RNA polymerase II. The pre-mRNA must undergo post-transcriptional modifications, forming mature RNA (mRNA), before they can be transported into the cytoplasm for translation into proteins. The post-transcriptional modifications are: the addition of a 5' m7G cap, splicing of intronic sequences, and 3' cleavage and polyadenylation.

<span class="mw-page-title-main">BARD1</span> Protein-coding gene in the species Homo sapiens

BRCA1-associated RING domain protein 1 is a protein that in humans is encoded by the BARD1 gene. The human BARD1 protein is 777 amino acids long and contains a RING finger domain, four ankyrin repeats, and two tandem BRCT domains.

<span class="mw-page-title-main">SUB1</span> Protein-coding gene in the species Homo sapiens

Activated RNA polymerase II transcriptional coactivator p15 also known as positive cofactor 4 (PC4) or SUB1 homolog is a protein that in humans is encoded by the SUB1 gene. The human SUB1 gene is named after an orthologous gene in yeast.

<span class="mw-page-title-main">CSTF2</span> Protein-coding gene in humans

Cleavage stimulation factor 64 kDa subunit is a protein that in humans is encoded by the CSTF2 gene.

<span class="mw-page-title-main">UBE2D1</span> Protein-coding gene in the species Homo sapiens

Ubiquitin-conjugating enzyme E2 D1 is a protein that in humans is encoded by the UBE2D1 gene.

<span class="mw-page-title-main">NUDT21</span> Protein-coding gene in the species Homo sapiens

Cleavage and polyadenylation specificity factor subunit 5 (CPSF5) is an enzyme that in humans is encoded by the NUDT21 gene. It belongs to the Nudix family of hydrolases.

<span class="mw-page-title-main">CPSF2</span> Protein-coding gene in humans

Cleavage and polyadenylation specificity factor subunit 2 is a protein that in humans is encoded by the CPSF2 gene. This protein is a subunit of the cleavage and polyadenylation specificity factor (CPSF) complex which plays a key role in pre-mRNA 3' end processing and polyadenylation. The CPSF2 protein connects the two subunits of the complex, mCF and mPSF. Its structure contributes both to the stability of the subunits interaction and to the flexibility of the complex necessary for function. This protein has been identified as an essential subunit of the complex as certain mutations in the region inhibit CPSF complex formation.

<span class="mw-page-title-main">CPSF1</span> Protein-coding gene in humans

Cleavage and polyadenylation specificity factor subunit 1 is a protein that in humans is encoded by the CPSF1 gene.

<span class="mw-page-title-main">TAF13</span> Protein-coding gene in the species Homo sapiens

Transcription initiation factor TFIID subunit 13 is a protein that in humans is encoded by the TAF13 gene.

<span class="mw-page-title-main">PAPOLA</span> Protein-coding gene in the species Homo sapiens

Poly(A) polymerase alpha is an enzyme that in humans is encoded by the PAPOLA gene.

<span class="mw-page-title-main">SYMPK</span> Protein-coding gene in the species Homo sapiens

Symplekin is a protein that in humans is encoded by the SYMPK gene.

<span class="mw-page-title-main">CSTF3</span> Protein-coding gene in the species Homo sapiens

Cleavage stimulation factor 77 kDa subunit is a protein that in humans is encoded by the CSTF3 gene.

<span class="mw-page-title-main">CSTF2T</span> Protein-coding gene in the species Homo sapiens

Cleavage stimulation factor 64 kDa subunit, tau variant is a protein that in humans is encoded by the CSTF2T gene.

<span class="mw-page-title-main">CPSF3</span> Protein-coding gene in humans

Cleavage and polyadenylation specificity factor subunit 3 is a protein that in humans is encoded by the CPSF3 gene.

<span class="mw-page-title-main">CPSF4</span> Protein-coding gene in humans

Cleavage and polyadenylation specificity factor subunit 4 is a protein that in humans is encoded by the CPSF4 gene.

<span class="mw-page-title-main">CPSF6</span> Protein-coding gene in humans

Cleavage and polyadenylation specificity factor subunit 6 is a protein that in humans is encoded by the CPSF6 gene.

<span class="mw-page-title-main">CPSF7</span> Protein-coding gene in humans

Cleavage and polyadenylation specificity factor subunit 7 is a protein that in humans is encoded by the CPSF7 gene.

References

  1. 1 2 3 GRCh38: Ensembl release 89: ENSG00000101138 - Ensembl, May 2017
  2. 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000027498 - Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. Takagaki Y, Manley JL (November 1992). "A human polyadenylation factor is a G protein beta-subunit homologue". The Journal of Biological Chemistry. 267 (33): 23471–4. doi: 10.1016/S0021-9258(18)35861-7 . PMID   1358884.
  6. 1 2 Kleiman FE, Manley JL (March 2001). "The BARD1-CstF-50 interaction links mRNA 3' end formation to DNA damage and tumor suppression". Cell. 104 (5): 743–53. doi: 10.1016/S0092-8674(01)00270-7 . PMID   11257228. S2CID   15022237.
  7. 1 2 "Entrez Gene: CSTF1 cleavage stimulation factor, 3' pre-RNA, subunit 1, 50kDa".
  8. Kleiman FE, Manley JL (September 1999). "Functional interaction of BRCA1-associated BARD1 with polyadenylation factor CstF-50". Science. 285 (5433): 1576–9. doi:10.1126/science.285.5433.1576. PMID   10477523.

Further reading