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AB45938

Anti-KPNB1 antibody

4

(1 Review)

|

(11 Publications)

Rabbit Polyclonal KPNB1 antibody. Suitable for IHC-P, IP, WB and reacts with Human, Rat, Mouse samples. Cited in 11 publications.

View Alternative Names

NTF97, KPNB1, Importin subunit beta-1, Importin-90, Karyopherin subunit beta-1, Nuclear factor p97, Pore targeting complex 97 kDa subunit, PTAC97

3 Images
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-KPNB1 antibody (AB45938)
  • IHC-P

Lab

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-KPNB1 antibody (AB45938)

IHC image of KPNB1 staining in a formalin fixed, paraffin embedded normal human testis tissue section*, performed on a Leica Bond™ system using the standard protocol F. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH6, epitope retrieval solution 1) for 20 mins. The section was then incubated with ab45938, 5μg/ml, for 15 mins at room temperature and detected using an HRP conjugated compact polymer system. DAB was used as the chromogen. The section was then counterstained with haematoxylin and mounted with DPX.

For other IHC staining systems (automated and non-automated) customers should optimize variable parameters such as antigen retrieval conditions, primary antibody concentration and antibody incubation times.

*Tissue obtained from the Human Research Tissue Bank, supported by the NIHR Cambridge Biomedical Research Centre

Immunoprecipitation - Anti-KPNB1 antibody (AB45938)
  • IP

Unknown

Immunoprecipitation - Anti-KPNB1 antibody (AB45938)

KPNB1 was immunoprecipitated using 0.5mg Hela whole cell extract, 5μg of Rabbit polyclonal to KPNB1 and 50μl of protein G magnetic beads (+). No antibody was added to the control (-).
The antibody was incubated under agitation with Protein G beads for 10min, Hela whole cell extract lysate diluted in RIPA buffer was added to each sample and incubated for a further 10min under agitation.
Proteins were eluted by addition of 40μl SDS loading buffer and incubated for 10min at 70oC; 10μl of each sample was separated on a SDS PAGE gel, transferred to a nitrocellulose membrane, blocked with 5% BSA and probed with ab45938.
Secondary : Mouse monoclonal [SB62a] Secondary Antibody to Rabbit IgG light chain (HRP) (ab99697).
Band : 97kDa; KPNB1

All lanes:

Immunoprecipitation - Anti-KPNB1 antibody (ab45938)

Predicted band size: 97 kDa

false

Western blot - Anti-KPNB1 antibody (AB45938)
  • WB

Project

Western blot - Anti-KPNB1 antibody (AB45938)

All lanes:

Western blot - Anti-KPNB1 antibody (ab45938) at 2 µg/mL

Lane 1:

HeLa (Human epithelial carcinoma cell line) Whole Cell Lysate at 15 µg

Lane 2:

Jurkat (Human T cell lymphoblast-like cell line) Whole Cell Lysate at 15 µg

Lane 3:

Western blot - NIH/3T3 whole cell lysate (<a href='/en-us/products/cell-lysates/nih-3t3-whole-cell-lysate-ab7179'>ab7179</a>) at 15 µg

Lane 4:

PC12 (Rat adrenal pheochromocytoma cell line) Whole Cell Lysate at 15 µg

Secondary

All lanes:

Goat polyclonal to Rabbit IgG - H&L - Pre-Adsorbed (HRP) at 1/3000 dilution

Predicted band size: 97 kDa

Observed band size: 97 kDa

false

Key facts

Host species

Rabbit

Clonality

Polyclonal

Isotype

IgG

Carrier free

No

Reacts with

Mouse, Rat, Human

Applications

IP, WB, IHC-P

applications

Immunogen

The exact immunogen used to generate this antibody is proprietary information.

Reactivity data

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Properties and storage information

Form
Liquid
Purification technique
Affinity purification Immunogen
Storage buffer
pH: 7.4 Preservative: 0.02% Sodium azide Constituents: PBS, 1% BSA
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

Supplementary information

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

KPNB1 also known as importin beta plays hard role in nucleocytoplasmic transport. This large protein with a mass approximately 97 kDa shuttles proteins and ribonucleoproteins into the nucleus. KPNB1 expression occurs widely in many tissues reflecting its essential function in cell operations. As a solenoid protein KPNB1 structure allows flexibility needed for diverse interactions with cargo proteins and nuclear pore complexes.
Biological function summary

Importin beta facilitates the import of nuclear localization signal (NLS)-bearing proteins into the nucleus. KPNB1 forms a complex with importin alpha to mediate import processes. Importin alpha binds to the NLS-containing cargo while KPNB1 interacts with the nuclear pore complex. This system oversees important regulation of several cellular processes including signal transduction and cell cycle progression. The protein's role helps to organize cellular response to various stimuli maintaining cellular homeostasis.

Pathways

KPNB1 contributes to regulation in the nuclear import and export pathways. It tightly associates with Ran-GTPase a protein involved in the Ran pathway. This interaction supports directionality and specificity of energy-dependent nuclear transport. Additionally KPNB1 associates with proteins like NUP50 and NUP98 functioning as a gatekeeper at the nuclear pore complex by controlling cargo passage. Through these pathways KPNB1 balances cellular imports and exports critical for cell health and functionality.

KPNB1 has links to cancer notably in tumorigenesis and cancer progression. Studies show aberrant KPNB1 expression affects the nuclear import machinery supporting cancer cell proliferation and survival. KPNB1 interacts with oncogenic proteins such as c-Myc influencing transcription regulation in tumor cells. Furthermore KPNB1 holds relevance in neurodegenerative diseases like Alzheimer's where impaired transport function contributes to pathological accumulation of proteins in neuronal cells.

Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

Target data

Functions in nuclear protein import, either in association with an adapter protein, like an importin-alpha subunit, which binds to nuclear localization signals (NLS) in cargo substrates, or by acting as autonomous nuclear transport receptor (PubMed : 10228156, PubMed : 11682607, PubMed : 11891849, PubMed : 19386897, PubMed : 20818336, PubMed : 24699649, PubMed : 7615630, PubMed : 9687515). Acting autonomously, serves itself as NLS receptor (PubMed : 10228156, PubMed : 11682607, PubMed : 11891849, PubMed : 19386897, PubMed : 20818336, PubMed : 24699649, PubMed : 7615630, PubMed : 9687515). Docking of the importin/substrate complex to the nuclear pore complex (NPC) is mediated by KPNB1 through binding to nucleoporin FxFG repeats and the complex is subsequently translocated through the pore by an energy requiring, Ran-dependent mechanism (PubMed : 10228156, PubMed : 11682607, PubMed : 11891849, PubMed : 19386897, PubMed : 20818336, PubMed : 24699649, PubMed : 7615630, PubMed : 9687515). At the nucleoplasmic side of the NPC, Ran binds to importin-beta and the three components separate and importin-alpha and -beta are re-exported from the nucleus to the cytoplasm where GTP hydrolysis releases Ran from importin (PubMed : 10228156, PubMed : 11682607, PubMed : 11891849, PubMed : 19386897, PubMed : 20818336, PubMed : 24699649, PubMed : 7615630, PubMed : 9687515). The directionality of nuclear import is thought to be conferred by an asymmetric distribution of the GTP- and GDP-bound forms of Ran between the cytoplasm and nucleus (PubMed : 10228156, PubMed : 11682607, PubMed : 11891849, PubMed : 19386897, PubMed : 24699649, PubMed : 7615630, PubMed : 9687515). Mediates autonomously the nuclear import of ribosomal proteins RPL23A, RPS7 and RPL5 (PubMed : 11682607, PubMed : 9687515). In association with IPO7, mediates the nuclear import of H1 histone (PubMed : 10228156). In vitro, mediates nuclear import of H2A, H2B, H3 and H4 histones (By similarity). Imports MRTFA, SNAI1 and PRKCI into the nucleus (PubMed : 11891849, PubMed : 19386897, PubMed : 20818336, PubMed : 24699649).. (Microbial infection) In case of HIV-1 infection, binds and mediates the nuclear import of HIV-1 Rev.
See full target information KPNB1

Publications (11)

Recent publications for all applications. Explore the full list and refine your search

Scientific reports 12:20171 PubMed36418423

2022

A mass spectrometry-based approach for the identification of Kpnβ1 binding partners in cancer cells.

Applications

Unspecified application

Species

Unspecified reactive species

Michael O Okpara,Clemens Hermann,Pauline J van der Watt,Shaun Garnett,Jonathan M Blackburn,Virna D Leaner

International journal of cancer 150:347-361 PubMed34591985

2021

Nuclear transport proteins are secreted by cancer cells and identified as potential novel cancer biomarkers.

Applications

Unspecified application

Species

Unspecified reactive species

Pauline J van der Watt,Michael O Okpara,Andrew Wishart,M Iqbal Parker,Nelson C Soares,Jonathan M Blackburn,Virna D Leaner

Journal of molecular neuroscience : MN 71:1683-1695 PubMed33763840

2021

CircPITX1 Regulates Proliferation, Angiogenesis, Migration, Invasion, and Cell Cycle of Human Glioblastoma Cells by Targeting miR-584-5p/KPNB1 Axis.

Applications

Unspecified application

Species

Unspecified reactive species

Yiqiang Cao,Fei Wang,Yu Chen,Yonggang Wang,Hai Song,Jiang Long

Autophagy 16:2167-2179 PubMed31996071

2020

A new transcription factor ATG10S activates IFNL2 transcription by binding at an IRF1 site in HepG2 cells.

Applications

Unspecified application

Species

Unspecified reactive species

Miao-Qing Zhang,Qiong Zhao,Jing-Pu Zhang

Molecular cell 73:1191-1203.e6 PubMed30824373

2019

Fuzzy Interactions Form and Shape the Histone Transport Complex.

Applications

Unspecified application

Species

Unspecified reactive species

Nives Ivic,Mia Potocnjak,Victor Solis-Mezarino,Franz Herzog,Silvija Bilokapic,Mario Halic

Virology 521:169-174 PubMed29957337

2018

The transmembrane nucleoporin Pom121 ensures efficient HIV-1 pre-integration complex nuclear import.

Applications

Unspecified application

Species

Human

Jing Guo,Xianxian Liu,Chuanjian Wu,Jingping Hu,Ke Peng,Li Wu,Sidong Xiong,Chunsheng Dong

The Journal of neuroscience : the official journal 37:7547-7559 PubMed28663197

2017

Subcellular Distribution of HDAC1 in Neurotoxic Conditions Is Dependent on Serine Phosphorylation.

Applications

Unspecified application

Species

Unspecified reactive species

Yunjiao Zhu,Oscar G Vidaurre,Kadidia P Adula,Nebojsa Kezunovic,Maureen Wentling,George W Huntley,Patrizia Casaccia

Oncotarget 8:40654-40667 PubMed28489565

2017

Motifs in the amino-terminus of CENP-A are required for its accumulation within the nucleus and at the centromere.

Applications

Unspecified application

Species

Unspecified reactive species

Ruiqi Jing,Jiajie Xi,Ye Leng,Wen Chen,Guiying Wang,Wenwen Jia,Jiuhong Kang,Songcheng Zhu

Scientific reports 7:42297 PubMed28205572

2017

Ran-dependent TPX2 activation promotes acentrosomal microtubule nucleation in neurons.

Applications

Unspecified application

Species

Unspecified reactive species

Wen-Shin Chen,Yi-Ju Chen,Yung-An Huang,Bing-Yuan Hsieh,Ho-Chieh Chiu,Pei-Ying Kao,Chih-Yuan Chao,Eric Hwang

Pulmonary circulation 2:340-51 PubMed23130102

2012

Altered expression of nuclear and cytoplasmic histone H1 in pulmonary artery and pulmonary artery smooth muscle cells in patients with IPAH.

Applications

Unspecified application

Species

Unspecified reactive species

Megha Talati,Erin Seeley,Kaori Ihida-Stansbury,Horace Delisser,Hayes McDonald,Fei Ye,Xueqiong Zhang,Yu Shyr,Richard Caprioli,Barbara Meyrick
View all publications

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