Difference between revisions of "Phosphatase Family HP2"

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[[Phosphatase classification|Phosphatase Classification]]: [[Phosphatase_Superfamily_Histidine_Phosphatase|Histidine phosphatase superfamily]]: [[Phosphatase_Family_Histidine_Phosphatase_Branch2|HP, branch2 family]]
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__NOTOC__
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[[Phosphatase classification|Phosphatase Classification]]: [[Phosphatase_Fold_HP|Fold HP]]: [[Phosphatase_Superfamily_HP|Superfamily HP]]: [[Phosphatase_Family_HP2|Family HP, branch 2 (HP2)]]
  
Refer to Pfam ID [http://pfam.xfam.org/family/PF00328 PF00328] for general information.
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The histidine phosphatase, branch 2 (HP2) family is found throughout eukaryotes. It has subfamilies that are protein phosphatases, non-protein phosphatases, and pseudophosphatases. See also Pfam [http://pfam.xfam.org/family/PF00328 PF00328]. All subfamilies other than PPIP5K encode an N-terminal signal peptide or signal anchor, and many have a C-terminal transmembrane domain. One of its subfamily [[Phosphatase_Subfamily_ACP2|ACP2]] can function as tyrosine protein phosphatase.
  
====== ACPP ======
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=== Subfamilies ===
[http://www.ncbi.nlm.nih.gov/gene/55 ACPP] (acid phosphatase, prostate) is a prostate epithelium-specific differentiation antigen, and is decreased in prostate carcinomas. It has been show to downregulate prostate cell growth by dephosphorylating phosphotyrosine on c-ErbB-2, an oncoprotein in prostate cells <cite>ACPP_2</cite>. His-12 and Asp-258 of ACPP, but not Cys-183 or Cys-281, are required for the phosphatase activity <cite>ACPP_1</cite>. ACPP and its paralog [http://www.ncbi.nlm.nih.gov/gene/53 ACP2] is found in metazoan, choanoflagellida, amoebozoa and some protists, but is absent from fungi and plants.
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====== PXYLP1 ======
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====== [[Phosphatase_Subfamily_ACP2|ACP2]]: pTyr and small molecule phosphatase ======
[http://www.ncbi.nlm.nih.gov/gene/?term=92370 PXYLP1] dephosphorylates [http://en.wikipedia.org/wiki/Xylose xylose], a sugar, in the glycosaminoglycan-protein linkage region of proteoglycans <cite>koike14</cite>. It is found in most metazoan, absent from fungi, plants and most protists, but ''Entamoeba histolytica'' and ''Emiliania huxleyi'' have PXYLP1 like genes.  
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The ACP2 subfamily is a '''protein phosphatase''' subfamily that usually has multiple copies per genome. Human has three copies with different tissue specificity. It is found in holozoa, ameobozoa, and some protists.
  
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====== [[Phosphatase_Subfamily_ACP6|ACP6]]: lysophosphatidic acid-specific phosphatase ======
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====== [[Phosphatase_Subfamily_MINPP1|MINPP1]]: Ins5P and Ins6P phosphatase ======
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A non-protein phosphatase found in a broad of eukaryotes, including most metazoa and amoebozoa. Known substrates include InsP6 and 2,3-BPG.
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====== [[Phosphatase_Subfamily_PXYLP1|PXYLP1]] (ACPL2): xylose phosphatase ======
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The PXYLP1 (ACPL2) subfamily dephosphorylates [http://en.wikipedia.org/wiki/Xylose xylose], a sugar, in the glycosaminoglycan-protein linkage region of proteoglycans <cite>koike14</cite>. It is widely found in bilateria.
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====== [[Phosphatase_Subfamily_ PPIP5K| PPIP5K]]: pseudophosphatase domain binding to PtdIns(3,4,5)P3 ======
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The PPIP5K subfamily has two domains: a pseudophosphatase domain which binds PtdIns(3,4,5)P3, and a kinase domain of the RimK superfamily, which converts InsP6 and 5-InsP7 to 1-InsP7 and InsP8. PPIP5K is found throughout eukaryotes; vertebrates usually have two copies per genome.
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====== [[Phosphatase_Subfamily_cf60|Cf60]]: Pseudophosphatase ======
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[[Phosphatase_Subfamily_cf60|Cf60]] is a [[pseudophosphatase]] found in many amoebozoa. The ''Dictyostelium discoideum'' cf60 encodes a secreted 450-kDa complex of proteins called counting factor (CF), through which ''Dictyostelium discoideum'' cells sense and regulate the size of groups and fruiting bodies.
  
 
===References===
 
===References===

Latest revision as of 21:51, 25 October 2016

Phosphatase Classification: Fold HP: Superfamily HP: Family HP, branch 2 (HP2)

The histidine phosphatase, branch 2 (HP2) family is found throughout eukaryotes. It has subfamilies that are protein phosphatases, non-protein phosphatases, and pseudophosphatases. See also Pfam PF00328. All subfamilies other than PPIP5K encode an N-terminal signal peptide or signal anchor, and many have a C-terminal transmembrane domain. One of its subfamily ACP2 can function as tyrosine protein phosphatase.

Subfamilies

ACP2: pTyr and small molecule phosphatase

The ACP2 subfamily is a protein phosphatase subfamily that usually has multiple copies per genome. Human has three copies with different tissue specificity. It is found in holozoa, ameobozoa, and some protists.

ACP6: lysophosphatidic acid-specific phosphatase
MINPP1: Ins5P and Ins6P phosphatase

A non-protein phosphatase found in a broad of eukaryotes, including most metazoa and amoebozoa. Known substrates include InsP6 and 2,3-BPG.

PXYLP1 (ACPL2): xylose phosphatase

The PXYLP1 (ACPL2) subfamily dephosphorylates xylose, a sugar, in the glycosaminoglycan-protein linkage region of proteoglycans [1]. It is widely found in bilateria.

PPIP5K: pseudophosphatase domain binding to PtdIns(3,4,5)P3

The PPIP5K subfamily has two domains: a pseudophosphatase domain which binds PtdIns(3,4,5)P3, and a kinase domain of the RimK superfamily, which converts InsP6 and 5-InsP7 to 1-InsP7 and InsP8. PPIP5K is found throughout eukaryotes; vertebrates usually have two copies per genome.

Cf60: Pseudophosphatase

Cf60 is a pseudophosphatase found in many amoebozoa. The Dictyostelium discoideum cf60 encodes a secreted 450-kDa complex of proteins called counting factor (CF), through which Dictyostelium discoideum cells sense and regulate the size of groups and fruiting bodies.

References

Error fetching PMID 11067847:
Error fetching PMID 9705354:
Error fetching PMID 24425863:
  1. Error fetching PMID 24425863: [koike14]
  2. Error fetching PMID 11067847: [ACPP_1]
  3. Error fetching PMID 9705354: [ACPP_2]
All Medline abstracts: PubMed | HubMed