Dual specificity phosphatase: Difference between revisions

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{{STRUCTURE_1ohe| PDB=1ohe | SIZE=400 | SCENE= |right|CAPTION=Human Cdc14B2 core domain (grey) complex with tripeptide (green) and acetyl (PDB code [[1ohe]]). }}
<StructureSection load='' size='350' side='right' scene='44/444621/Cv/1' caption='Human Cdc14B2 core domain (cyan) complex with tripeptide (green) and acetyl (PDB code [[1ohe]]).'>
 
== Function ==
== Function ==


'''Dual specificity phosphatase''' (DUSP) is a phosphatase which acts on tyrosine, serine or threonine residues.  There are several DUSP enzymes in mammals sharing a common catalytic mechanism.  The DUSP include:<br />
'''Dual specificity phosphatase''' or '''Dual specificity protein phosphatase''' (DUSP) is a phosphatase which dephosphorylates phosphotyrosine, phosphoserine or phosphothreonine residues<ref>PMID:19228121</ref>.  There are several DUSP enzymes in mammals sharing a common catalytic mechanism.  The DUSP include:<br />
• Slingshot phosphatase<ref>PMID:17848544</ref><br />
• '''Slingshot phosphatase'''<ref>PMID:17848544</ref><br />
• Phosphatase of regenerating liver<ref>PMID:24030100</ref><br />
• '''Phosphatase of regenerating liver''' (PRL)<ref>PMID:24030100</ref><br />
• Cdc14<ref>PMID:15568976</ref><br />
• '''Cdc14''' leads to mitotic exit by dephosphorylation of targets of the protein kinase Cdk1.<ref>PMID:15568976</ref><br />
• Cdc25<ref>PMID:15324805</ref><br />
• '''Cdc25''' activates Cdk1 by its dephosphorylation.<ref>PMID:15324805</ref><br />
• PTEN<ref>PMID:10555148</ref><br />
• '''PTEN''' (Phosphatase and TEnsin homolog) dephosphorylates phosphasitide substrates.<ref>PMID:10555148</ref> For details see [[PTEN]].<br />
• Myotubularin<ref>PMID:12847286</ref><br />
• '''Myotubularin''' dephosphorylates phosphadinylinositol 3-phosphate and phosphadinylinositol (3,5)-bi-phosphate<ref>PMID:12847286</ref><br />
• MAPK phosphatase see [[MAP kinase phosphatase]]<br />
• '''MAPK phosphatase''' see [[MAP kinase phosphatase]]<br />


== Relevance ==
== Relevance ==


Cdc25A and Cdc25B are overexpressed in several types of cancers and their inhibitors are being tested as chemotherapeutic agents.
'''Cdc25A''' and '''Cdc25B''' are overexpressed in several types of cancers and their inhibitors are being tested as chemotherapeutic agents.<br />
'''PTEN''' gene is mutated with high frequency in a variety of human cancers.<ref>PMID:18298792</ref><br />
'''Phosphatase of regenerating liver''' is overexpressed in several types of cancers.


==3D structures of dual specificity phosphatase==
== Disease ==


Updated on {{REVISIONDAY2}}-{{MONTHNAME|{{REVISIONMONTH}}}}-{{REVISIONYEAR}}
Myotubularin mutations are responsible for the hereditary motor disease Charcot-Marie-Tooth disease.<ref>PMID:12045210</ref>
{{#tree:id=OrganizedByTopic|openlevels=0|


*Slingshot phosphatase (SSH)
== Structural highlights ==


**[[2nt2]] – hSSH-2L catalytic domain - human<br />
<scene name='44/444621/Cv/6'>Tripeptide binding site</scene> in human Cdc14B2 (PDB code [[1ohe]]).<ref>PMID:12853468</ref>


*Phosphatase of regenerating liver (RPL)
==3D structures of dual specificity phosphatase==
 
[[Dual specificity phosphatase 3D structures]]
**[[1xm2]]  – hPRL-1 (mutant)<br />
**[[1zck]], [[1x24]]  – rPRL-1 - rat<br />
**[[1zcl]] – rPRL-1 (mutant)<br />
**[[1r6h]], [[1v3a]], [[2mbc]]  – hPRL-3 - NMR<br />
 
*Cdc14
 
**[[1ohc]], [[1ohd]]  – hCdc14B2 core domain <br />
**[[1ohe]]  – hCdc14B2 core domain + peptide<br />
 
*Cdc25
 
**[[1qb0]], [[1cwr]], [[1cws]], [[1cwt]], [[1ym9]], [[1ymd]], [[1ymk]], [[1yml]], [[1ys0]], [[2uzq]]  – hCdc25B catalytic domain <br />
**[[2a2k]], [[2ifd]], [[2ifv]]  – hCdc25B catalytic domain (mutant)<br />
 
*Phosphoinositide phosphatase PTEN
 
**[[1d5r]] – hPTEN (mutant)<br />
 
*Myotubularin-related protein (MTMR)


**[[1zvr]] – hMTMR2 PH-gram and phosphatase domains (mutant)<br />
</StructureSection>
**[[1zsq]] - hMTMR2 PH-gram and phosphatase domains (mutant) + phosphatidylinositol 3-phosphate<br />
**[[1m7r]], [[1lw3]] - hMTMR2 PH-gram and phosphatase domains (mutant) + phosphate<br />
**[[2yf0]] – hMTMR6<br />


*MAPK phosphatase see [[MAP kinase phosphatase]]
}}
== References ==
== References ==
<references/>
<references/>
[[Category:Topic Page]]
[[Category:Topic Page]]

Latest revision as of 07:17, 11 July 2021

Human Cdc14B2 core domain (cyan) complex with tripeptide (green) and acetyl (PDB code 1ohe).

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References

Proteopedia Page Contributors and Editors (what is this?)

Michal Harel, Alexander Berchansky, Jaime Prilusky, Joel L. Sussman