PMID- 26962298 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20160310 LR - 20231111 IS - 1389-2029 (Print) IS - 1875-5488 (Electronic) IS - 1389-2029 (Linking) VI - 16 IP - 4 DP - 2015 Aug TI - Role of Protein Tyrosine Phosphatases in Plants. PG - 224-36 LID - 10.2174/1389202916666150424234300 [doi] AB - Reversible protein phosphorylation is a crucial regulatory mechanism that controls many biological processes in eukaryotes. In plants, phosphorylation events primarily occur on serine (Ser) and threonine (Thr) residues, while in certain cases, it was also discovered on tyrosine (Tyr) residues. In contrary to plants, extensive reports on Tyr phosphorylation regulating a large numbers of biological processes exist in animals. Despite of such prodigious function in animals, Tyr phosphorylation is a least studied mechanism of protein regulation in plants. Recently, various chemical analytical procedures have strengthened the view that Tyr phosphorylation is equally prevalent in plants as in animals. However, regardless of Tyr phosphorylation events occuring in plants, no evidence could be found for the existence of gene encoding for Tyr phosphorylation i.e. the typical Tyr kinases. Various methodologies have suggested that plant responses to stress signals and developmental processes involved modifications in protein Tyr phosphorylation. Correspondingly, various reports have established the role of PTPs (Protein Tyrosine Phosphatases) in the dephosphorylation and inactivation of mitogen activated protein kinases (MAPKs) hence, in the regulation of MAPK signaling cascade. Besides this, many dual specificity protein phosphatases (DSPs) are also known to bind starch and regulate starch metabolism through reversible phosphorylation. Here, we are emphasizing the significant progress on protein Tyr phosphatases to understand the role of these enzymes in the regulation of post-translational modification in plant physiology and development. FAU - Shankar, Alka AU - Shankar A AD - Department of Plant Molecular Biology, University of Delhi South Campus, Benito Juarez Road, Dhaula Kuan, New Delhi-110021, India. FAU - Agrawal, Nisha AU - Agrawal N AD - Department of Plant Molecular Biology, University of Delhi South Campus, Benito Juarez Road, Dhaula Kuan, New Delhi-110021, India. FAU - Sharma, Manisha AU - Sharma M AD - Department of Plant Molecular Biology, University of Delhi South Campus, Benito Juarez Road, Dhaula Kuan, New Delhi-110021, India. FAU - Pandey, Amita AU - Pandey A AD - Department of Plant Molecular Biology, University of Delhi South Campus, Benito Juarez Road, Dhaula Kuan, New Delhi-110021, India. FAU - Girdhar K Pandey, Margarita AU - Girdhar K Pandey M AD - Department of Plant Molecular Biology, University of Delhi South Campus, Benito Juarez Road, Dhaula Kuan, New Delhi-110021, India. LA - eng PT - Journal Article PL - United Arab Emirates TA - Curr Genomics JT - Current genomics JID - 100960527 PMC - PMC4765517 OTO - NOTNLM OT - Carbohydrate binding module OT - Kinases OT - Laforin OT - Protein tyrosine phosphatase OT - Signal transduction OT - Stress. OT - Tyrosine phosphorylation EDAT- 2016/03/11 06:00 MHDA- 2016/03/11 06:01 PMCR- 2016/02/01 CRDT- 2016/03/11 06:00 PHST- 2015/03/13 00:00 [received] PHST- 2015/04/19 00:00 [revised] PHST- 2015/04/24 00:00 [accepted] PHST- 2016/03/11 06:00 [entrez] PHST- 2016/03/11 06:00 [pubmed] PHST- 2016/03/11 06:01 [medline] PHST- 2016/02/01 00:00 [pmc-release] AID - CN-16-224 [pii] AID - 10.2174/1389202916666150424234300 [doi] PST - ppublish SO - Curr Genomics. 2015 Aug;16(4):224-36. doi: 10.2174/1389202916666150424234300.