Evidence map›Paper›PMID 42565819›Full record

ArticleActa crystallographica. Section F, Structural biology communications2026

Crystal structure of the NKX2-1 homeodomain bound to a palindromic DNA recognition sequence.

Aiswarya Mohandas, Hyun Joo Nam

Abstract read
In one paragraph

Article in Acta crystallographica. Section F, Structural biology communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

2 authors.

Aiswarya MohandasBiological and Environmental Sciences, East Texas A&M University, Commerce, TX 75248, USA.
Hyun Joo NamBiological and Environmental Sciences, East Texas A&M University, Commerce, TX 75248, USA.ORCID 0000-0002-0235-9311

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

NKX2-1 (thyroid transcription factor 1, TTF-1) is a homeodomain transcription factor that plays critical roles in the development and function of the thyroid, lung and forebrain. Here, we report the crystal structure of the NKX2-1 homeodomain bound to a 19 bp DNA duplex containing two palindromically arranged NK2-recognition motifs, refined to 3.26 Å resolution. The structure reveals two homeodomains bound to a single DNA duplex and demonstrates that the overall fold and DNA-binding interactions are highly conserved relative to those of NKX2-5. Comparison with NKX2-5 further shows that the amino-acid residues that differ between the two homeodomains are located away from the protein-DNA interface, suggesting that functional differences between these transcription factors are unlikely to arise from distinct DNA-recognition mechanisms. These findings provide a structural framework for understanding DNA recognition by NKX2-1 and for interpreting the effects of pathogenic variants within its homeodomain.

Indexed as

DNAInverted Repeat SequencesThyroid Nuclear Factor 1Amino Acid SequenceBinding SitesCrystallography, X-RayHomeodomain ProteinsHumansModels, MolecularProtein BindingDNAHomeodomain ProteinsNKX2-1 protein, humanThyroid Nuclear Factor 1homeodomainsNK2NKX2-1

Identifiers

PMID42565819
PMCPMC13523714

What OpenQuestion holds

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.