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Rabbit Anti-PABPN1 Recombinant Antibody (D6F3Q) (CBMAB-P0629-YC)

Provided herein is a Rabbit monoclonal antibody against Human Poly(A) Binding Protein Nuclear 1. The antibody can be used for immunoassay techniques, such as WB, IP.
See all PABPN1 antibodies
Published Data
Fig.1 HELZ interacts with the poly(A)-binding protein (PABP).
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Summary

Host Animal
Rabbit
Specificity
Human, Mouse, Rat, Monkey, Cattle
Clone
D6F3Q
Antibody Isotype
IgG
Application
WB, IP

Basic Information

Specificity
Human, Mouse, Rat, Monkey, Cattle
Antibody Isotype
IgG
Clonality
Monoclonal
Application Notes
The COA includes recommended starting dilutions, optimal dilutions should be determined by the end user.

Formulations & Storage [For reference only, actual COA shall prevail!]

Storage
Store at 4°C short term (1-2 weeks). Aliquot and store at-20°C long term. Avoid repeated freeze/thaw cycles.

Target

Full Name
Poly(A) Binding Protein Nuclear 1
Introduction
PABPN1 is an abundant nuclear protein that binds with high affinity to nascent poly(A) tails. The protein is required for progressive and efficient polymerization of poly(A) tails at the 3' ends of eukaryotic transcripts and controls the size of the poly(A) tail to about 250 nt. At steady-state, this protein is localized in the nucleus whereas a different poly(A) binding protein is localized in the cytoplasm. This gene contains a GCG trinucleotide repeat at the 5' end of the coding region, and expansion of this repeat from the normal 6 copies to 8-13 copies leads to autosomal dominant oculopharyngeal muscular dystrophy (OPMD) disease. Related pseudogenes have been identified on chromosomes 19 and X. Read-through transcription also exists between this gene and the neighboring upstream BCL2-like 2 (BCL2L2) gene.
Entrez Gene ID
Human8106
Mouse54196
Rat116697
Monkey721624
Cattle282298
UniProt ID
HumanQ86U42
MouseQ8CCS6
RatG3V7Z8
MonkeyI2CTJ7
CattleQ28165
Alternative Names
Poly(A) Binding Protein Nuclear 1; PABP-2; PABP2; PABII; PAB2; Polyadenylate-Binding Nuclear Protein 1; Poly(A)-Binding Protein, Nuclear 1; Poly(A) Binding Protein, Nuclear 1;
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).
Biological Process
Cellular response to lipopolysaccharideISS:UniProtKB
MAPK cascadeISS:UniProtKB
mRNA processingIEA:UniProtKB-KW
Muscle contractionManual Assertion Based On ExperimentTAS:ProtInc
Poly(A)+ mRNA export from nucleusManual Assertion Based On ExperimentIMP:UniProtKB
Positive regulation of polynucleotide adenylyltransferase activityISS:UniProtKB
RNA processingManual Assertion Based On ExperimentTAS:ProtInc
Cellular Location
Nucleus
Cytoplasm
Nucleus speckle
Localized in cytoplasmic mRNP granules containing untranslated mRNAs. Shuttles between the nucleus and the cytoplasm but predominantly found in the nucleus (PubMed:10688363).
Its nuclear import may involve the nucleocytoplasmic transport receptor transportin and a RAN-GTP-sensitive import mechanism (By similarity).
Is exported to the cytoplasm by a carrier-mediated pathway that is independent of mRNA traffic. Colocalizes with SKIP and poly(A) RNA in nuclear speckles (By similarity).
Intranuclear filamentous inclusions or 'aggregates' are detected in the myocytes of patients; these inclusions contain PABPN1, ubiquitin, subunits of the proteasome and poly(A) RNA.
Involvement in disease
Oculopharyngeal muscular dystrophy (OPMD):
A form of late-onset slowly progressive myopathy characterized by eyelid ptosis, dysphagia and, sometimes by other cranial and limb-muscle involvement.
PTM
Arginine dimethylation is asymmetric and involves PRMT1 and PRMT3. It does not influence the RNA binding properties (By similarity).

Wang, Q. H., Yan, P. C., Shi, L. Z., Teng, Y. J., Gao, X. J., Yao, L. Q., ... & Li, R. (2024). PABPN1 functions as a predictive biomarker in colorectal carcinoma. Molecular Biology Reports, 51(1), 40.

Kwiatek, L., Landry-Voyer, A. M., Latour, M., Yague-Sanz, C., & Bachand, F. (2023). PABPN1 prevents the nuclear export of an unspliced RNA with a constitutive transport element and controls human gene expression via intron retention. RNA, 29(5), 644-662.

Chen, L., Dong, W., Zhou, M., Yang, C., Xiong, M., Kazobinka, G., ... & Hou, T. (2023). PABPN1 regulates mRNA alternative polyadenylation to inhibit bladder cancer progression. Cell & Bioscience, 13(1), 45.

Kases, K., Schubert, E., Hajikhezri, Z., Larsson, M., Devi, P., Darweesh, M., ... & Younis, S. (2023). The RNA-binding protein ZC3H11A interacts with the nuclear poly (A)-binding protein PABPN1 and alters polyadenylation of viral transcripts. Journal of Biological Chemistry, 299(8).

Dai, X. X., Pi, S. B., Zhao, L. W., Wu, Y. W., Shen, J. L., Zhang, S. Y., ... & Fan, H. Y. (2022). PABPN1 functions as a hub in the assembly of nuclear poly (A) domains that are essential for mouse oocyte development. Science Advances, 8(43), eabn9016.

Roth, F., Dhiab, J., Boulinguiez, A., Mouigni, H. R., Lassche, S., Negroni, E., ... & Trollet, C. (2022). Assessment of PABPN1 nuclear inclusions on a large cohort of patients and in a human xenograft model of oculopharyngeal muscular dystrophy. Acta Neuropathologica, 144(6), 1157-1170.

Zhang, L., Wang, D., Han, X., Guo, X., Cao, Y., Xia, Y., & Gao, D. (2022). Novel read‐through fusion transcript Bcl2l2‐Pabpn1 in glioblastoma cells. Journal of Cellular and Molecular Medicine, 26(17), 4686-4697.

Zhao, A., & Liu, Y. (2021). Propofol suppresses colorectal cancer development by the circ-PABPN1/miR-638/SRSF1 axis. Analytical biochemistry, 631, 114354.

Mohibi, S., Zhang, J., & Chen, X. (2020). PABPN1, a target of p63, modulates keratinocyte differentiation through regulation of p63α mRNA translation. Journal of Investigative Dermatology, 140(11), 2166-2177.

Malerba, A., Klein, P., Lu-Nguyen, N., Cappellari, O., Strings-Ufombah, V., Harbaran, S., ... & Dickson, G. (2019). Established PABPN1 intranuclear inclusions in OPMD muscle can be efficiently reversed by AAV-mediated knockdown and replacement of mutant expanded PABPN1. Human Molecular Genetics, 28(19), 3301-3308.

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For research use only. Not intended for any clinical use.

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