NFE2

NFE2

Target · Transcription factor

NFE2 Nuclear factor, erythroid 2 · Transcription factor NF-E2 45 kDa subunit

NFE2 (nuclear factor, erythroid 2, also written NF-E2) is the 45 kDa subunit of the NF-E2 transcription factor complex. It is a bZIP protein of the CNC subfamily that regulates erythroid and megakaryocytic maturation and differentiation. Browse Assay Genie's current range of NFE2 research reagents below, or read on for the biology behind the target.

Nucleus, PML bodybZIP CNC transcription factorBinds beta-globin HS2 region
373 aa
Protein length
~41 kDa
Molecular weight
12q13.13
Gene locus
bZIP, CNC
Protein family
Target information

What is NFE2 (nuclear factor, erythroid 2)?

NFE2 is a component of the NF-E2 complex, which is essential for regulating erythroid and megakaryocytic maturation and differentiation. The NFE2 subunit recognises the TCAT/C sequence of the AP-1-like core palindrome found in a number of erythroid and megakaryocytic gene promoters. It also binds the hypersensitive site 2 (HS2) of the beta-globin locus control region. To bind the NF-E2 motif, NFE2 requires MAFK or other small MAF proteins. It may play a role in all aspects of haemoglobin production, from globin and haem synthesis to the procurement of iron.

The NFE2 protein belongs to the bZIP family and the CNC subfamily, and HGNC places the NFE2 gene in the NFE2 family of bZIP transcription factors. UniProt lists its subcellular location as the nucleus, specifically PML bodies, and the cytoplasm. NCBI Gene annotates NFE2 with WW domain binding, identical protein binding and sequence-specific double-stranded DNA binding activities. It also contributes to cis-regulatory region sequence-specific DNA binding and forms part of a protein-DNA complex. It is predicted to be involved in regulating transcription by RNA polymerase II.

Predicted biological processes linked to NFE2 include labyrinthine layer blood vessel development, negative regulation of bone mineralisation and positive regulation of peptidyl-lysine acetylation. The protein was formerly named nuclear factor (erythroid-derived 2), 45kD, and NF-E2 remains a common alias. Mouse and rat both carry an orthologous Nfe2 gene, which allows comparative work in rodent systems.

Erythroid differentiation

NFE2 is part of the NF-E2 complex that regulates erythroid maturation and differentiation, making it a focus for studies of red cell development.

Megakaryocyte biology

The NF-E2 complex is essential for megakaryocytic maturation and differentiation, so NFE2 is relevant to work on megakaryocyte gene regulation.

Globin gene regulation

NFE2 binds hypersensitive site 2 of the beta-globin control region, linking it to transcriptional control of the globin locus.

Haemoglobin and iron handling

NFE2 may act across haemoglobin production, from globin and haem synthesis to iron procurement, supporting studies of these coordinated pathways.

Background

NFE2 frequently asked questions

What does NFE2 do?

NFE2 is a component of the NF-E2 complex, which regulates erythroid and megakaryocytic maturation and differentiation. It recognises the TCAT/C AP-1-like motif in erythroid and megakaryocytic promoters and binds the beta-globin control region HS2. It needs MAFK or other small MAF proteins to bind DNA.

What other names does NFE2 go by?

NFE2 is also written NF-E2, and its UniProt name is transcription factor NF-E2 45 kDa subunit. HGNC records the previous names nuclear factor (erythroid-derived 2), 45kD, and 45kDa. It sits in the NFE2 family of bZIP transcription factors, alongside NFE2L1 and NFE2L3.

Is NFE2 conserved in mouse and rat?

Yes. Mouse and rat each have an orthologous gene named Nfe2. This allows the NF-E2 pathway to be studied in rodent models, though you should check the datasheet of any product for its validated reactivity.

Explore

Related targets

Other NFE2 family bZIP transcription factors with products at Assay Genie.

Gene and protein annotations from HGNC, NCBI Gene and UniProt Q16621; product specifications from Assay Genie datasheets.

NFE2 Product listing