PSK4 phytosulfokine 4 precursor [Arabidopsis thaliana (thale cress)] - Gene

Summary

Official Symbol: PSK4
Official Full Name: phytosulfokine 4 precursor
Primary source: TAIR:AT3G49780
Locus tag: AT3G49780
See related: Araport:AT3G49780
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: ATPSK3 (FORMER SYMBOL); ATPSK4; phytosulfokine 4 precursor
Summary: Phytosulfokine 3 precursor, coding for a unique plant peptide growth factor. Plants overexpressing this gene (under a 35S promoter), develop normal cotyledons and hypocotyls but their growth, in particular that of their roots, was faster than that of wildtype.
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Chromosome 3 - NC_003074.8 Genomic Context describing neighboring genes

Go to nucleotide: Graphics FASTA GenBank

overexpressing AtPSK4 enhanced expression of a number of genes encoding expansins, which are involved in cell wall loosening.
Title: Overexpression of phytosulfokine-α induces male sterility and cell growth by regulating cell wall development in Arabidopsis.
proAtPSK4 is cleaved from its precursor by upregulation of AtSBT1.1, a subtilisin serine protease.
Title: Proteolytic processing of a precursor protein for a growth-promoting peptide by a subtilisin serine protease in Arabidopsis.

Submit: New GeneRIF Correction

NM_114838.2

Function	Evidence Code	Pubs
enables molecular_function	ND No biological Data available more info

Process	Evidence Code	Pubs
acts_upstream_of_or_within cell differentiation	ISS Inferred from Sequence or Structural Similarity more info	PubMed
involved_in cell population proliferation	IEA Inferred from Electronic Annotation more info
acts_upstream_of_or_within cellular response to hypoxia	HEP more info	PubMed
acts_upstream_of_or_within plant organ morphogenesis	ISS Inferred from Sequence or Structural Similarity more info	PubMed

Component	Evidence Code	Pubs
located_in Golgi apparatus	HDA more info	PubMed
located_in extracellular matrix	IDA Inferred from Direct Assay more info	PubMed
located_in extracellular matrix	ISS Inferred from Sequence or Structural Similarity more info	PubMed
located_in extracellular region	ISM Inferred from Sequence Model more info

NP_566926.1

phytosulfokine 4 precursor (PSK4); FUNCTIONS IN: growth factor activity; INVOLVED IN: cell proliferation, cell differentiation, response to wounding, organ morphogenesis; LOCATED IN: extracellular matrix; EXPRESSED IN: 25 plant structures; EXPRESSED DURING: 10 growth stages; CONTAINS InterPro DOMAIN/s: Phytosulfokine (InterPro:IPR009438); BEST Arabidopsis thaliana protein match is: phytosulfokine 5 precursor (TAIR:AT5G65870.1); Has 142 Blast hits to 142 proteins in 25 species: Archae - 0; Bacteria - 0; Metazoa - 0; Fungi - 0; Plants - 142; Viruses - 0; Other Eukaryotes - 0 (source: NCBI BLink).