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Gene : KEA1 A. thaliana

DB identifier  ? AT1G01790 Secondary Identifier  ? locus:2198215
Name  ? K efflux antiporter 1 Brief Description  K efflux antiporter 1
TAIR Computational Description  K+ efflux antiporter 1;(source:Araport11)
TAIR Curator Summary  Encodes a member of the cation/proton antiporters-2 antiporter superfamily, the K efflux antiporter KEA1 that is localized to the chloroplast envelope.
TAIR Short Description  K+ efflux antiporter 1
TAIR Aliases  ATKEA1, KEA1

4 Gene Rifs

1 Organism

33 Publications

0 Synonyms

Genomics

Genome feature

Region: gene ? Length: 6854  
Location: Chr1:284350-291203

Gene models - KEA1 AT1G01790

? Gene models

Transcripts: 2  Exons: 41  Introns: 39 

Overlapping Features

? Genome features that overlap coordinates of this Gene

25 Child Features

1 Cross References

1 Downstream Intergenic Region

0 Located Features

1 Upstream Intergenic Region

Proteins

Curated comments from UniProt

Type Comment Proteins
KEA1_ARATH function Electroneutral K(+)/H(+) efflux antiporter involved in chloroplastic K(+) homeostasis and osmotic adjustment, especially during plastid division and thylakoid membrane formation (PubMed:24278440, PubMed:27443603, PubMed:31296940, PubMed:33111995). Collaboratively with KEA2, adjusts alkaline stromal pH upon light to dark transitions in plastids (PubMed:33111995). Together with KEA2, critical for chloroplast development, including chloroplast RNA-metabolism (e.g. rRNA maturation, polysome loading and RNA-protein interactions) and plastid gene expression (PGE), ion homeostasis, and photosynthesis (PubMed:27443603, PubMed:34235544). Contributes, during early seedling development, to the regulation of photosynthesis and abscisic acid- (ABA-) mediated primary root growth in a sucrose-dependent manner (PubMed:35193734). Involved in the regulation of reactive oxygen and nitrogen species (ROS and RNS) metabolism (PubMed:33485149). Required in roots for rapid hyperosmotic-induced Ca(2+) responses and for osmo-sensory potentiation in hyperosmotic conditions (PubMed:27528686). May counteract resilience to drought and salt stress, involving photorespiratory pathway and stomata closure (PubMed:33485149, PubMed:34235544).
KEA1_ARATH similarity Belongs to the monovalent cation:proton antiporter 2 (CPA2) transporter (TC 2.A.37) family. KEA (TC 2.A.37.1) subfamily.
KEA1_ARATH subcellular location Specifically localized to the two caps of the dividing organelle separated by the fission plane (at protein level).
KEA1_ARATH tissue specificity Expressed in shoots and roots (PubMed:24278440). Mainly localized to leaf veins, hypocotyls, mesophylls and guard cells (PubMed:35193734). Accumulates at high levels in small and dividing plastids (at protein level) (PubMed:27443603).

1 Proteins

Function

Interactions

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Expression

eFP Visualization

Data Source: BAR




Co-expression

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Data Source: ATTED-II
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LS: LS is a monotonic transformation (negative logit) of MR index. Larger LS indicates stronger co-expression.

 

Homology

Phytozome Homologs

Data Source: Phytozome


0 Homologues

 

Other

9 Data Sets