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AB177635

Recombinant Human PABPN1 protein (denatured) (His tag N-Terminus)

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Recombinant Human PABPN1 protein (denatured) (His tag N-Terminus) is a Human Fragment protein, in the 119 to 306 aa range, expressed in Escherichia coli, with >95%, suitable for SDS-PAGE.

View Alternative Names

PAB2, PABP2, PABPN1, Polyadenylate-binding protein 2, PABP-2, Poly(A)-binding protein 2, Nuclear poly(A)-binding protein 1, Poly(A)-binding protein II, Polyadenylate-binding nuclear protein 1, PABII

1 Images
SDS-PAGE - Recombinant Human PABPN1 protein (denatured) (His tag N-Terminus) (AB177635)
  • SDS-PAGE

Supplier Data

SDS-PAGE - Recombinant Human PABPN1 protein (denatured) (His tag N-Terminus) (AB177635)

15% SDS-PAGE analysis of ab177635 (3μg).

Key facts

Purity

>95% SDS-PAGE

Expression system

Escherichia coli

Tags

His tag N-Terminus

Applications

SDS-PAGE

applications

Biologically active

No

Accession

Q86U42

Animal free

No

Carrier free

No

Species

Human

Storage buffer

pH: 8 Constituents: 10% Glycerol (glycerin, glycerine), 2.4% Urea, 0.32% Tris HCl

storage-buffer

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Reactivity", "Dilution Info", "Notes"] }, "values": { "SDS-PAGE": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" } } }

Sequence info

[{"sequence":"MGSSHHHHHHSSGLVPRGSHMGSLEAIKARVREMEEEAEKLKELQNEVEKQMNMSPPPGNAGPVIMSIEEKMEADARSIYVGNVDYGATAEELEAHFHGCGSVNRVTILCDKFSGHPKGFAYIEFSDKESVRTSLALDESLFRGRQIKVIPKRTNRPGISTTDRGFPRARYRARTTNYNSSRSRFYSGFNSRPRGRVYRGRARATSWYSPY","proteinLength":"Fragment","predictedMolecularWeight":"23.8 kDa","actualMolecularWeight":null,"aminoAcidEnd":306,"aminoAcidStart":119,"nature":"Recombinant","expressionSystem":"Escherichia coli","accessionNumber":"Q86U42","tags":[{"tag":"His","terminus":"N-Terminus"}]}]

Properties and storage information

Shipped at conditions
Blue Ice
Appropriate short-term storage duration
1-2 weeks
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle
False

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

PABPN1 also known as polyadenylate-binding nuclear protein 1 is an RNA-binding protein that plays a fundamental role in the regulation of mRNA processing. It is a 31-kilodalton protein that binds to the poly(A) tail of pre-mRNA and stimulates the assembly of the polyadenylation complex thereby influencing the maturation and stability of mRNA transcripts. This protein is predominantly expressed in the nucleus of eukaryotic cells where it performs its important function in post-transcriptional regulation.
Biological function summary

PABPN1 is involved in controlling the polyadenylation process of pre-mRNA which is essential for producing mature mRNA molecules. PABPN1 operates within a multi-protein complex that includes enzymes like poly(A) polymerase and cleavage stimulation factor (CstF). By interacting with these proteins PABPN1 ensures the correct formation of the 3' end of mRNA influencing gene expression regulation and mRNA stability.

Pathways

PABPN1 participates in key cellular pathways such as mRNA processing and nuclear export of mRNA. It operates in concert with other proteins like PABPC1 which aids in the transition of mRNA from the nucleus to the cytoplasm. The protein maintains the balance of mRNA stability and translation efficiency which are critical aspects of efficient gene expression.

PABPN1 mutations are linked to oculopharyngeal muscular dystrophy (OPMD) a genetic condition that leads to muscle weakness. Another related disorder involves its interaction with proteins like HSP70 where its dysfunction may contribute to disrupted protein homeostasis in affected tissues. Studying PABPN1's role in these diseases provides insight into the molecular mechanisms underlying these conditions and aids in the development of potential therapeutic strategies.

Specifications

Form

Liquid

General info

Function

Involved in the 3'-end formation of mRNA precursors (pre-mRNA) by the addition of a poly(A) tail of 200-250 nt to the upstream cleavage product (By similarity). Stimulates poly(A) polymerase (PAPOLA) conferring processivity on the poly(A) tail elongation reaction and controls also the poly(A) tail length (By similarity). Increases the affinity of poly(A) polymerase for RNA (By similarity). Is also present at various stages of mRNA metabolism including nucleocytoplasmic trafficking and nonsense-mediated decay (NMD) of mRNA. Cooperates with SKIP to synergistically activate E-box-mediated transcription through MYOD1 and may regulate the expression of muscle-specific genes (PubMed : 11371506). Binds to poly(A) and to poly(G) with high affinity (By similarity). May protect the poly(A) tail from degradation (By similarity). Subunit of the trimeric poly(A) tail exosome targeting (PAXT) complex, a complex that directs a subset of long and polyadenylated poly(A) RNAs for exosomal degradation. The RNA exosome is fundamental for the degradation of RNA in eukaryotic nuclei. Substrate targeting is facilitated by its cofactor MTREX, which links to RNA-binding protein adapters (PubMed : 27871484).

Post-translational modifications

Arginine dimethylation is asymmetric and involves PRMT1 and PRMT3. It does not influence the RNA binding properties (By similarity).

Subcellular localisation

Nucleus

Product protocols

Target data

Involved in the 3'-end formation of mRNA precursors (pre-mRNA) by the addition of a poly(A) tail of 200-250 nt to the upstream cleavage product (By similarity). Stimulates poly(A) polymerase (PAPOLA) conferring processivity on the poly(A) tail elongation reaction and controls also the poly(A) tail length (By similarity). Increases the affinity of poly(A) polymerase for RNA (By similarity). Is also present at various stages of mRNA metabolism including nucleocytoplasmic trafficking and nonsense-mediated decay (NMD) of mRNA. Cooperates with SKIP to synergistically activate E-box-mediated transcription through MYOD1 and may regulate the expression of muscle-specific genes (PubMed : 11371506). Binds to poly(A) and to poly(G) with high affinity (By similarity). May protect the poly(A) tail from degradation (By similarity). Subunit of the trimeric poly(A) tail exosome targeting (PAXT) complex, a complex that directs a subset of long and polyadenylated poly(A) RNAs for exosomal degradation. The RNA exosome is fundamental for the degradation of RNA in eukaryotic nuclei. Substrate targeting is facilitated by its cofactor MTREX, which links to RNA-binding protein adapters (PubMed : 27871484).
See full target information PABPN1

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