Target intelligence / Profile preview

Nuclear RNA export factor 2B (NXF2B)

Target
NXF2B
Molecular classification
RNA export factor, Transporter (specifically, mRNA export transporter), Nuclear envelope-associated protein
01

Overview

Nuclear RNA export factor 2B is a member of the nuclear RNA export factor family located on the nuclear envelope. It plays a key role in exporting mRNA from the nucleus to the cytoplasm, particularly in germ cells and in some cancer types. NXF2B interacts with multiple export cofactors and forms granular structures distinct from other RNA export proteins. Its dysfunction or altered expression is linked to disorders such as breast cancer and Pelizaeus-Merzbacher Disease. Current research focuses on its fundamental cellular functions, structural domains (including nuclear localization signals and mRNA binding regions), and its potential value as a biomarker, rather than on targeted drug therapy.

Other names
NXF2TAPL2CT39TAPL-2bA353J17.1Cancer/testis antigen 39TAP-like protein 2TCP11X2T-complex protein 11 X-linked protein 2
02

Mechanism of action

Not applicable for drugs, as NXF2B is not known to be a direct therapeutic drug target; its primary molecular action is as an RNA export protein facilitating transport across nuclear membrane, dependent on interaction with factors such as MAGOH, REF, and U2AF35

03

Biological functions

mRNA export from nucleus to cytoplasmRNA bindingNucleotide bindingRegulation of gene expressionRegulation of translation in germ cellsInteraction with export cofactors and mRNP complexes
04

Disease associations

Cancer (e.g., Cancer/testis antigen, Progesterone-Receptor Negative Breast Cancer)Neurodevelopmental and neurodegenerative disease (e.g., Pelizaeus-Merzbacher Disease)Potential roles in other developmental or translation-associated disorders
05

Safety considerations

No specific safety concerns documented; challenges mainly involve its restricted tissue specificity (e.g., germ cell expression)Like other nuclear transport factors, off-target modulation could disrupt essential mRNA export and cellular gene expression, impacting cell viability
06

Interacting drugs

None currently documented as directly interacting with NXF2B in public databases. Research focus is predominantly on function and disease association, not direct pharmacological targeting
07

Biomarkers

Expression of NXF2B (or its aliases as cancer/testis antigen 39) may serve as a biomarker in specific cancers or germ cell-related disorders, though not widely used clinically

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