INP1 transcription factor [Arabidopsis thaliana (thale cress)] - Gene

Summary

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Official Symbol: INP1
Official Full Name: transcription factor
Primary source: TAIR:AT4G22600
Locus tag: AT4G22600
See related: Araport:AT4G22600
Gene type: protein coding
RefSeq status: REVIEWED
Organism: Arabidopsis thaliana (ecotype: Columbia)
Lineage: Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta; Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae; rosids; malvids; Brassicales; Brassicaceae; Camelineae; Arabidopsis
Also known as: F7K2.180; F7K2_180; INAPERTURATE POLLEN1
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Genomic context

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See INP1 in Genome Data Viewer

Location:: chromosome: 4

Exon count:: 1

Sequence:: Chromosome: 4; NC_003075.7 (11900211..11901032, complement)

Chromosome 4 - NC_003075.7 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Go to reference sequence details

Genomic Sequence:: NC_003075.7

Go to nucleotide: Graphics FASTA GenBank

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

INP1 involvement in aperture formation is evolutionarily conserved, despite the significant divergence of INP1 sequences and aperture patterns, but that additional species-specific factors are likely to be required to guide INP1 and to provide information for aperture patterning.
Title: INP1 involvement in pollen aperture formation is evolutionarily conserved and may require species-specific partners.
NP1 is a late-acting factor involved in keeping specific membrane domains next to the callose wall to prevent formation of exine at these sites.
Title: Pollen Aperture Factor INP1 Acts Late in Aperture Formation by Excluding Specific Membrane Domains from Exine Deposition.
in the absence of male meiosis the ability of INP1 to assemble into lines at the pollen surface is compromised.
Title: Formation of pollen apertures in Arabidopsis requires an interplay between male meiosis, development of INP1-decorated plasma membrane domains, and the callose wall.
n the mutants with ectopic apertures, the number and positions of INP1 localization sites change depending on ploidy or ploidy-related cell size and not on INP1 levels, suggesting that sites for aperture formation are specified before INP1 is brought to them.
Title: A Ploidy-Sensitive Mechanism Regulates Aperture Formation on the Arabidopsis Pollen Surface and Guides Localization of the Aperture Factor INP1.
Loss of INP1 leads to the loss of all three apertures in Arabidopsis pollen, and INP1 protein exhibits a unique tripartite localization in developing pollen, indicative of its direct involvement in specification of aperture positions.
Title: The novel plant protein INAPERTURATE POLLEN1 marks distinct cellular domains and controls formation of apertures in the Arabidopsis pollen exine.

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General gene information

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Homology

Orthologs from OrthoDB

NM_118386.1

Supported by ESTs:

Gene Ontology Provided by TAIR

Function	Evidence Code	Pubs
enables sequence-specific DNA binding	IEA Inferred from Electronic Annotation more info

Process	Evidence Code	Pubs
involved_in DNA-templated transcription	IEA Inferred from Electronic Annotation more info
acts_upstream_of_or_within pollen exine formation	IMP Inferred from Mutant Phenotype more info	PubMed

Component	Evidence Code	Pubs
located_in nucleus	ISM Inferred from Sequence Model more info

General protein information

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Preferred Names: transcription factor

NP_193991.1

unknown protein; Has 26 Blast hits to 26 proteins in 8 species: Archae - 0; Bacteria - 0; Metazoa - 0; Fungi - 0; Plants - 26; Viruses - 0; Other Eukaryotes - 0 (source: NCBI BLink).