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ADF4

Gene
ADF4
Protein
Actin-depolymerizing factor 4
Organism
Arabidopsis thaliana
Length
139 amino acids
Function
Actin-depolymerizing protein. Severs actin filaments (F-actin) and binds to actin monomers (PubMed:19346440, PubMed:22010035). Contributes to the stochastic dynamic turnover of actin filaments (PubMed:22010035). Binds monomeric actin (G-actin) with a marked preference for the ADP-loaded form and inhibits the rate of nucleotide exchange on G-actin. Involved in resistance triggered by the effector AvrPphB of Pseudomonas syringae pv tomato (Pst). May modulate the AvrPphB-RPS5-mediated defense signal transduction pathway (PubMed:19346440). During AvrPphB-triggered resistance signaling pathway, involved in the control of MPK3 and MPK6 activaton, via the coordinated regulation of actin cytoskeletal dynamics and RPS5 resistance gene transcription (PubMed:23144618). During innate immune response triggered by the bacterial elf26 peptide, the inhibition of ADF4 regulates actin dynamics in order to execute key events associated with pattern-triggered immunity (PTI), such as cell wall fortification and transcriptional activation of defense gene markers (PubMed:24464292).
Similarity
Belongs to the actin-binding proteins ADF family.
Mass
16.034 kDa
Sequence
MANAASGMAVHDDCKLRFLELKAKRTHRFIVYKIEEKQKQVIVEKVGEPILTYEDFAASLPADECRYAIYDFDFVTAENCQKSKIFFIAWCPDVAKVRSKMIYASSKDRFKRELDGIQVELQATDPTEMDLDVLKSRVN

Gene
ADF4
Protein
Actin-depolymerizing factor 4
Organism
Oryza sativa subsp. japonica
Length
139 amino acids
Function
Actin-depolymerizing protein. Severs actin filaments (F-actin) and binds to actin monomers (By similarity). Involved in innate immunity. Required for the expression of defense-related genes PR1A, LOX2 and CHS1 upon biotic stresses. Required for basal resistance to the fungal blast (Magnaporthe grisea), bacterial blight (Xanthomonas oryzae pv. oryzae, Xoo) and the herbivorous insect brown planthopper (Nilaparvata lugens, BPH). Involved in the promotion of seed germination. Required for the expression of alpha-amylase genes during seed germination (PubMed:24033867).
Similarity
Belongs to the actin-binding proteins ADF family.
Mass
15.946 kDa
Sequence
MANSSSGVAIHDDCKLKFNELQSKRMHRFITFMMDNKGKEIIVDKIGDRTTSYEDFTSSLPEGDCRFAIYDFDFLTAEDVPKSRIFYILWSPDNAKVRSKMLYASSNERFKKELNGIQLEVQATDAGEISLDALKDRVK