PPM1B

Available structures

Ortholog search: PDBe RCSB

List of PDB id codes
2P8E

Identifiers

Aliases

PPM1B, PP2C-beta, PP2C-beta-X, PP2CB, PP2CBETA, PPC2BETAX, protein phosphatase, Mg2+/Mn2+ dependent 1B

External IDs

OMIM: 603770 MGI: 101841 HomoloGene: 2027 GeneCards: PPM1B

Gene location (Human)

Chr.	Chromosome 2 (human)^[1]

Band	2p21	Start	44,167,969 bp^[1]
Band	2p21	End	44,244,384 bp^[1]

Gene location (Mouse)

Chr.	Chromosome 17 (mouse)^[2]

Band	17 E4\|17 55.13 cM	Start	85,264,169 bp^[2]
Band	17 E4\|17 55.13 cM	End	85,331,419 bp^[2]

RNA expression pattern

Bgee

Human

Mouse (ortholog)

Top expressed in

secondary oocyte

retinal pigment epithelium

gastrocnemius muscle

biceps brachii

deltoid muscle

vastus lateralis muscle

optic nerve

internal globus pallidus

tibialis anterior muscle

popliteal artery

Top expressed in

ankle

spermatid

digastric muscle

temporal muscle

saccule

sternocleidomastoid muscle

body of femur

cerebellar cortex

superior cervical ganglion

endocardial cushion

More reference expression data

BioGPS


More reference expression data

Gene ontology
Molecular function	protein binding magnesium ion binding manganese ion binding protein serine/threonine phosphatase activity phosphoprotein phosphatase activity catalytic activity cation binding hydrolase activity metal ion binding
Cellular component	membrane cytoplasm nucleolus cytosol nucleus
Biological process	protein dephosphorylation negative regulation of I-kappaB kinase/NF-kappaB signaling negative regulation of defense response to virus N-terminal protein myristoylation peptidyl-threonine dephosphorylation negative regulation of interferon-beta production negative regulation of NIK/NF-kappaB signaling
Sources:Amigo / QuickGO

Orthologs

Species

Human

Mouse

Entrez


5495


19043

Ensembl


ENSG00000138032


ENSMUSG00000061130

UniProt


O75688


P36993

RefSeq (mRNA)


NM_001033556 NM_001033557 NM_002706 NM_177968 NM_177969


NM_001159496 NM_001159497 NM_001159498 NM_011151

RefSeq (protein)


NP_001028729 NP_002697 NP_808907 NP_808908


NP_001152968 NP_001152969 NP_001152970 NP_035281

Location (UCSC)

Chr 2: 44.17 – 44.24 Mb

Chr 17: 85.26 – 85.33 Mb

PubMed search

^[3]

^[4]

Wikidata

View/Edit Human

View/Edit Mouse

Protein phosphatase 1B is an enzyme that in humans is encoded by the PPM1B gene.^[5]^[6]

Function

The protein encoded by this gene is a member of the PP2C family of Ser/Thr protein phosphatases. PP2C family members are known to be negative regulators of cell stress response pathways. This phosphatase has been shown to dephosphorylate cyclin-dependent kinases (CDKs), and thus may be involved in cell cycle control. Overexpression of this phosphatase is reported to cause cell-growth arrest or cell death. Alternative splicing results in multiple transcript variants encoding different isoforms. Additional transcript variants have been described, but currently do not represent full-length sequences.^[6]

Interactions

PPM1B has been shown to interact with:

References

Hishiya A, Ohnishi M, Tamura S, Nakamura F (1999). "Protein phosphatase 2C inactivates F-actin binding of human platelet moesin". J. Biol. Chem. 274 (38): 26705–12. doi:10.1074/jbc.274.38.26705. PMID 10480873.
Cheng A, Ross KE, Kaldis P, Solomon MJ (2000). "Dephosphorylation of cyclin-dependent kinases by type 2C protein phosphatases". Genes Dev. 13 (22): 2946–57. doi:10.1101/gad.13.22.2946. PMC 317162. PMID 10580002.
Cheng A, Kaldis P, Solomon MJ (2000). "Dephosphorylation of human cyclin-dependent kinases by protein phosphatase type 2C alpha and beta 2 isoforms". J. Biol. Chem. 275 (44): 34744–9. doi:10.1074/jbc.M006210200. PMID 10934208.
Hanada M, Ninomiya-Tsuji J, Komaki K, Ohnishi M, Katsura K, Kanamaru R, Matsumoto K, Tamura S (2001). "Regulation of the TAK1 signaling pathway by protein phosphatase 2C". J. Biol. Chem. 276 (8): 5753–9. doi:10.1074/jbc.M007773200. PMID 11104763.
Parvari R, Brodyansky I, Elpeleg O, Moses S, Landau D, Hershkovitz E (2001). "A recessive contiguous gene deletion of chromosome 2p16 associated with cystinuria and a mitochondrial disease". Am. J. Hum. Genet. 69 (4): 869–75. doi:10.1086/323624. PMC 1226072. PMID 11524703.
Seroussi E, Shani N, Ben-Meir D, Chajut A, Divinski I, Faier S, Gery S, Karby S, Kariv-Inbal Z, Sella O, Smorodinsky NI, Lavi S (2001). "Uniquely conserved non-translated regions are involved in generation of the two major transcripts of protein phosphatase 2Cbeta". J. Mol. Biol. 312 (3): 439–51. doi:10.1006/jmbi.2001.4967. PMID 11563908.
Prajapati S, Verma U, Yamamoto Y, Kwak YT, Gaynor RB (2004). "Protein phosphatase 2Cbeta association with the IkappaB kinase complex is involved in regulating NF-kappaB activity". J. Biol. Chem. 279 (3): 1739–46. doi:10.1074/jbc.M306273200. PMID 14585847.
Parvari R, Gonen Y, Alshafee I, Buriakovsky S, Regev K, Hershkovitz E (2005). "The 2p21 deletion syndrome: characterization of the transcription content". Genomics. 86 (2): 195–211. doi:10.1016/j.ygeno.2005.04.001. PMID 15913950.
Rual JF, Venkatesan K, Hao T, Hirozane-Kishikawa T, Dricot A, Li N, Berriz GF, Gibbons FD, Dreze M, Ayivi-Guedehoussou N, Klitgord N, Simon C, Boxem M, Milstein S, Rosenberg J, Goldberg DS, Zhang LV, Wong SL, Franklin G, Li S, Albala JS, Lim J, Fraughton C, Llamosas E, Cevik S, Bex C, Lamesch P, Sikorski RS, Vandenhaute J, Zoghbi HY, Smolyar A, Bosak S, Sequerra R, Doucette-Stamm L, Cusick ME, Hill DE, Roth FP, Vidal M (2005). "Towards a proteome-scale map of the human protein-protein interaction network". Nature. 437 (7062): 1173–8. Bibcode:2005Natur.437.1173R. doi:10.1038/nature04209. PMID 16189514. S2CID 4427026.

v t e PDB gallery
2p8e: Crystal structure of the serine/threonine phosphatase domain of human PPM1B

Function

Interactions

References

Further reading