UniProt ID | MPIP2_HUMAN | |
---|---|---|
UniProt AC | P30305 | |
Protein Name | M-phase inducer phosphatase 2 | |
Gene Name | CDC25B | |
Organism | Homo sapiens (Human). | |
Sequence Length | 580 | |
Subcellular Localization | Cytoplasm, cytoskeleton, microtubule organizing center, centrosome . Cytoplasm, cytoskeleton, spindle pole . | |
Protein Description | Tyrosine protein phosphatase which functions as a dosage-dependent inducer of mitotic progression. Required for G2/M phases of the cell cycle progression and abscission during cytokinesis in a ECT2-dependent manner. Directly dephosphorylates CDK1 and stimulates its kinase activity. The three isoforms seem to have a different level of activity.. | |
Protein Sequence | MEVPQPEPAPGSALSPAGVCGGAQRPGHLPGLLLGSHGLLGSPVRAAASSPVTTLTQTMHDLAGLGSETPKSQVGTLLFRSRSRLTHLSLSRRASESSLSSESSESSDAGLCMDSPSPMDPHMAEQTFEQAIQAASRIIRNEQFAIRRFQSMPVRLLGHSPVLRNITNSQAPDGRRKSEAGSGAASSSGEDKENDGFVFKMPWKPTHPSSTHALAEWASRREAFAQRPSSAPDLMCLSPDRKMEVEELSPLALGRFSLTPAEGDTEEDDGFVDILESDLKDDDAVPPGMESLISAPLVKTLEKEEEKDLVMYSKCQRLFRSPSMPCSVIRPILKRLERPQDRDTPVQNKRRRSVTPPEEQQEAEEPKARVLRSKSLCHDEIENLLDSDHRELIGDYSKAFLLQTVDGKHQDLKYISPETMVALLTGKFSNIVDKFVIVDCRYPYEYEGGHIKTAVNLPLERDAESFLLKSPIAPCSLDKRVILIFHCEFSSERGPRMCRFIRERDRAVNDYPSLYYPEMYILKGGYKEFFPQHPNFCEPQDYRPMNHEAFKDELKTFRLKTRSWAGERSRRELCSRLQDQ | |
Overview of Protein Modification Sites with Functional and Structural Information | ||
* ASA = Accessible Surface Area
Locations | Modification | Substrate Peptides & Secondary Structure |
ASA (%) | Reference | Orthologous Protein Cluster |
---|---|---|---|---|---|
12 | Phosphorylation | QPEPAPGSALSPAGV CCCCCCCCCCCCCCC | 25.61 | 23898821 | |
15 | Phosphorylation | PAPGSALSPAGVCGG CCCCCCCCCCCCCCC | 16.66 | 28348404 | |
36 | Phosphorylation | LPGLLLGSHGLLGSP CCCCCCCCCCCCCCC | 17.85 | 23898821 | |
42 | Phosphorylation | GSHGLLGSPVRAAAS CCCCCCCCCHHHHHC | 21.86 | 17001009 | |
49 | Phosphorylation | SPVRAAASSPVTTLT CCHHHHHCCCCCHHH | 30.37 | 22199227 | |
49 (in isoform 2) | Phosphorylation | - | 30.37 | 22210691 | |
49 (in isoform 4) | Phosphorylation | - | 30.37 | 22210691 | |
50 | Phosphorylation | PVRAAASSPVTTLTQ CHHHHHCCCCCHHHH | 20.75 | 25850435 | |
53 | Phosphorylation | AAASSPVTTLTQTMH HHHCCCCCHHHHHHH | 21.33 | 25850435 | |
54 | Phosphorylation | AASSPVTTLTQTMHD HHCCCCCHHHHHHHH | 28.21 | 22199227 | |
56 | Phosphorylation | SSPVTTLTQTMHDLA CCCCCHHHHHHHHHC | 21.65 | 22199227 | |
58 | Phosphorylation | PVTTLTQTMHDLAGL CCCHHHHHHHHHCCC | 15.96 | 22199227 | |
67 | Phosphorylation | HDLAGLGSETPKSQV HHHCCCCCCCCHHHH | 43.25 | 27080861 | |
67 (in isoform 2) | Phosphorylation | - | 43.25 | 22210691 | |
67 (in isoform 4) | Phosphorylation | - | 43.25 | 22210691 | |
69 | Phosphorylation | LAGLGSETPKSQVGT HCCCCCCCCHHHHHH | 37.40 | 22199227 | |
69 (in isoform 2) | Phosphorylation | - | 37.40 | 22210691 | |
69 (in isoform 4) | Phosphorylation | - | 37.40 | 22210691 | |
71 | Ubiquitination | GLGSETPKSQVGTLL CCCCCCCHHHHHHHH | 62.02 | - | |
81 | Phosphorylation | VGTLLFRSRSRLTHL HHHHHHCCCCCCHHH | 27.55 | 23898821 | |
86 | Phosphorylation | FRSRSRLTHLSLSRR HCCCCCCHHHHHHHH | 21.47 | 23927012 | |
89 | Phosphorylation | RSRLTHLSLSRRASE CCCCHHHHHHHHHCC | 19.39 | 23927012 | |
91 | Phosphorylation | RLTHLSLSRRASESS CCHHHHHHHHHCCCC | 19.15 | 23927012 | |
97 | Phosphorylation | LSRRASESSLSSESS HHHHHCCCCCCCCCC | 33.80 | - | |
115 | Phosphorylation | DAGLCMDSPSPMDPH CCCCCCCCCCCCCHH | 10.61 | - | |
117 | Phosphorylation | GLCMDSPSPMDPHMA CCCCCCCCCCCHHHH | 36.49 | - | |
127 | Phosphorylation | DPHMAEQTFEQAIQA CHHHHHHHHHHHHHH | 22.20 | 21640712 | |
151 | Phosphorylation | FAIRRFQSMPVRLLG HHHHHHHHCCCHHHC | 23.49 | 30266825 | |
151 (in isoform 3) | Phosphorylation | - | 23.49 | 25850435 | |
160 | Phosphorylation | PVRLLGHSPVLRNIT CCHHHCCCHHHHHCC | 18.20 | 30266825 | |
167 | Phosphorylation | SPVLRNITNSQAPDG CHHHHHCCCCCCCCC | 32.16 | 21640712 | |
169 | Phosphorylation | VLRNITNSQAPDGRR HHHHCCCCCCCCCCC | 21.04 | 22817900 | |
177 | Ubiquitination | QAPDGRRKSEAGSGA CCCCCCCCCCCCCCC | 51.81 | - | |
178 | Phosphorylation | APDGRRKSEAGSGAA CCCCCCCCCCCCCCC | 30.76 | 25849741 | |
182 | Phosphorylation | RRKSEAGSGAASSSG CCCCCCCCCCCCCCC | 32.10 | 29214152 | |
186 | Phosphorylation | EAGSGAASSSGEDKE CCCCCCCCCCCCCCC | 25.22 | 12527891 | |
187 | Phosphorylation | AGSGAASSSGEDKEN CCCCCCCCCCCCCCC | 37.32 | 12527891 | |
188 | Phosphorylation | GSGAASSSGEDKEND CCCCCCCCCCCCCCC | 43.64 | - | |
190 (in isoform 2) | Ubiquitination | - | 68.78 | - | |
192 | Ubiquitination | ASSSGEDKENDGFVF CCCCCCCCCCCCEEE | 54.86 | - | |
200 | Ubiquitination | ENDGFVFKMPWKPTH CCCCEEEEECCCCCC | 38.46 | - | |
201 (in isoform 3) | Ubiquitination | - | 3.04 | 21890473 | |
204 | Ubiquitination | FVFKMPWKPTHPSST EEEEECCCCCCCCHH | 33.88 | - | |
209 | Phosphorylation | PWKPTHPSSTHALAE CCCCCCCCHHHHHHH | 40.02 | 21640712 | |
228 (in isoform 2) | Ubiquitination | - | 22.13 | 21890473 | |
229 | Phosphorylation | EAFAQRPSSAPDLMC HHHHHCCCCCCCCEE | 41.12 | 23927012 | |
230 | Phosphorylation | AFAQRPSSAPDLMCL HHHHCCCCCCCCEEE | 46.64 | 23927012 | |
238 | Phosphorylation | APDLMCLSPDRKMEV CCCCEEECCCCCCCH | 21.59 | 23401153 | |
242 | Sumoylation | MCLSPDRKMEVEELS EEECCCCCCCHHHHC | 46.95 | - | |
242 | Sumoylation | MCLSPDRKMEVEELS EEECCCCCCCHHHHC | 46.95 | - | |
242 | Ubiquitination | MCLSPDRKMEVEELS EEECCCCCCCHHHHC | 46.95 | 21906983 | |
242 (in isoform 1) | Ubiquitination | - | 46.95 | 21890473 | |
249 | Phosphorylation | KMEVEELSPLALGRF CCCHHHHCHHHCCEE | 22.58 | 29255136 | |
258 (in isoform 3) | Ubiquitination | - | 6.47 | 21890473 | |
262 (in isoform 3) | Ubiquitination | - | 59.82 | 21890473 | |
263 (in isoform 4) | Ubiquitination | - | 49.61 | 21890473 | |
265 | Phosphorylation | LTPAEGDTEEDDGFV CCCCCCCCCCCCCCC | 52.73 | 21640712 | |
266 (in isoform 3) | Ubiquitination | - | 65.26 | 21890473 | |
285 (in isoform 2) | Ubiquitination | - | 8.27 | 21890473 | |
289 (in isoform 2) | Ubiquitination | - | 3.79 | 21890473 | |
291 | Phosphorylation | AVPPGMESLISAPLV CCCCCHHHHHCCCHH | 23.31 | 21640712 | |
293 (in isoform 2) | Ubiquitination | - | 4.61 | 21890473 | |
299 | Ubiquitination | LISAPLVKTLEKEEE HHCCCHHHHCCHHHH | 55.89 | - | |
299 (in isoform 1) | Ubiquitination | - | 55.89 | 21890473 | |
303 | Ubiquitination | PLVKTLEKEEEKDLV CHHHHCCHHHHHHHH | 73.81 | 21906983 | |
303 (in isoform 1) | Ubiquitination | - | 73.81 | 21890473 | |
307 | Ubiquitination | TLEKEEEKDLVMYSK HCCHHHHHHHHHHHH | 60.69 | 21906983 | |
307 (in isoform 1) | Ubiquitination | - | 60.69 | 21890473 | |
312 | Phosphorylation | EEKDLVMYSKCQRLF HHHHHHHHHHHHHHH | 9.48 | - | |
313 | Phosphorylation | EKDLVMYSKCQRLFR HHHHHHHHHHHHHHC | 14.62 | 24719451 | |
320 (in isoform 4) | Ubiquitination | - | 52.85 | 21890473 | |
321 | Phosphorylation | KCQRLFRSPSMPCSV HHHHHHCCCCCCHHH | 17.62 | 23927012 | |
323 | Phosphorylation | QRLFRSPSMPCSVIR HHHHCCCCCCHHHHH | 36.28 | 23927012 | |
324 (in isoform 4) | Ubiquitination | - | 4.38 | 21890473 | |
327 | Phosphorylation | RSPSMPCSVIRPILK CCCCCCHHHHHHHHH | 18.08 | 30576142 | |
328 (in isoform 4) | Ubiquitination | - | 5.69 | 21890473 | |
334 | Ubiquitination | SVIRPILKRLERPQD HHHHHHHHHCCCCCC | 56.51 | - | |
344 | Phosphorylation | ERPQDRDTPVQNKRR CCCCCCCCCCCCCCC | 26.67 | 30576142 | |
349 | Ubiquitination | RDTPVQNKRRRSVTP CCCCCCCCCCCCCCC | 30.14 | - | |
353 | Phosphorylation | VQNKRRRSVTPPEEQ CCCCCCCCCCCHHHH | 28.65 | 25159151 | |
355 | Phosphorylation | NKRRRSVTPPEEQQE CCCCCCCCCHHHHHH | 34.08 | 30278072 | |
357 (in isoform 3) | Ubiquitination | - | 48.68 | 21890473 | |
367 | Sumoylation | QQEAEEPKARVLRSK HHHHHCHHHHHHHHH | 52.70 | - | |
367 | Sumoylation | QQEAEEPKARVLRSK HHHHHCHHHHHHHHH | 52.70 | - | |
367 | Ubiquitination | QQEAEEPKARVLRSK HHHHHCHHHHHHHHH | 52.70 | - | |
367 (in isoform 3) | Ubiquitination | - | 52.70 | 21890473 | |
372 (in isoform 3) | Ubiquitination | - | 38.90 | 21890473 | |
373 | Phosphorylation | PKARVLRSKSLCHDE HHHHHHHHHHHCHHH | 23.57 | 23927012 | |
374 | Ubiquitination | KARVLRSKSLCHDEI HHHHHHHHHHCHHHH | 40.80 | - | |
375 | Phosphorylation | ARVLRSKSLCHDEIE HHHHHHHHHCHHHHH | 37.16 | 29255136 | |
384 (in isoform 2) | Ubiquitination | - | 3.49 | 21890473 | |
387 | Phosphorylation | EIENLLDSDHRELIG HHHHHHCCCHHHHHC | 34.97 | 23927012 | |
394 (in isoform 2) | Ubiquitination | - | 40.19 | 21890473 | |
396 | Phosphorylation | HRELIGDYSKAFLLQ HHHHHCHHHHEEEEE | 13.57 | 21406692 | |
397 | Phosphorylation | RELIGDYSKAFLLQT HHHHCHHHHEEEEEE | 23.42 | 21406692 | |
398 | Ubiquitination | ELIGDYSKAFLLQTV HHHCHHHHEEEEEEC | 36.61 | 21906983 | |
398 (in isoform 1) | Ubiquitination | - | 36.61 | 21890473 | |
399 (in isoform 2) | Ubiquitination | - | 8.38 | 21890473 | |
404 | Phosphorylation | SKAFLLQTVDGKHQD HHEEEEEECCCCCCC | 22.12 | 21640712 | |
408 | Ubiquitination | LLQTVDGKHQDLKYI EEEECCCCCCCCCCC | 33.36 | 21906983 | |
408 (in isoform 1) | Ubiquitination | - | 33.36 | 21890473 | |
411 (in isoform 3) | Ubiquitination | - | 44.86 | 21890473 | |
413 | Ubiquitination | DGKHQDLKYISPETM CCCCCCCCCCCHHHH | 49.15 | 21906983 | |
413 (in isoform 1) | Ubiquitination | - | 49.15 | 21890473 | |
414 | Phosphorylation | GKHQDLKYISPETMV CCCCCCCCCCHHHHH | 17.58 | 29496907 | |
416 | Phosphorylation | HQDLKYISPETMVAL CCCCCCCCHHHHHHH | 17.37 | 22210691 | |
419 | Phosphorylation | LKYISPETMVALLTG CCCCCHHHHHHHHHC | 21.96 | 24114839 | |
419 (in isoform 4) | Ubiquitination | - | 21.96 | 21890473 | |
425 | Phosphorylation | ETMVALLTGKFSNIV HHHHHHHHCCCCCCC | 38.89 | 22210691 | |
427 | Ubiquitination | MVALLTGKFSNIVDK HHHHHHCCCCCCCCE | 40.14 | - | |
429 | Phosphorylation | ALLTGKFSNIVDKFV HHHHCCCCCCCCEEE | 29.18 | 22210691 | |
429 (in isoform 4) | Ubiquitination | - | 29.18 | 21890473 | |
434 | Ubiquitination | KFSNIVDKFVIVDCR CCCCCCCEEEEEECC | 30.54 | - | |
434 (in isoform 4) | Ubiquitination | - | 30.54 | 21890473 | |
438 (in isoform 2) | Ubiquitination | - | 4.83 | 21890473 | |
452 | Ubiquitination | EYEGGHIKTAVNLPL EECCCEEEEEEECCC | 25.43 | 21906983 | |
452 (in isoform 1) | Ubiquitination | - | 25.43 | 21890473 | |
465 | Phosphorylation | PLERDAESFLLKSPI CCCCCHHHHHHCCCC | 23.94 | 26552605 | |
469 | Ubiquitination | DAESFLLKSPIAPCS CHHHHHHCCCCCCCC | 57.23 | - | |
470 | Phosphorylation | AESFLLKSPIAPCSL HHHHHHCCCCCCCCC | 22.85 | 25159151 | |
473 (in isoform 4) | Ubiquitination | - | 11.48 | 21890473 | |
476 | Phosphorylation | KSPIAPCSLDKRVIL CCCCCCCCCCCCEEE | 38.25 | 23312004 | |
479 | Ubiquitination | IAPCSLDKRVILIFH CCCCCCCCCEEEEEE | 54.58 | - | |
482 (in isoform 3) | Ubiquitination | - | 2.57 | 21890473 | |
509 (in isoform 2) | Ubiquitination | - | 41.96 | 21890473 | |
513 | Phosphorylation | RAVNDYPSLYYPEMY HHHCCCCHHHCCCEE | 23.83 | 21640712 | |
523 | Ubiquitination | YPEMYILKGGYKEFF CCCEEEECCCHHHHC | 40.51 | 2190698 | |
523 (in isoform 1) | Ubiquitination | - | 40.51 | 21890473 | |
527 | Ubiquitination | YILKGGYKEFFPQHP EEECCCHHHHCCCCC | 51.85 | - | |
544 (in isoform 4) | Ubiquitination | - | 23.00 | 21890473 | |
551 | Ubiquitination | PMNHEAFKDELKTFR CCCHHHHHHHHHHHC | 58.29 | - | |
555 | Ubiquitination | EAFKDELKTFRLKTR HHHHHHHHHHCHHCC | 43.50 | - | |
556 | Phosphorylation | AFKDELKTFRLKTRS HHHHHHHHHCHHCCC | 26.98 | - | |
561 | Phosphorylation | LKTFRLKTRSWAGER HHHHCHHCCCCCCHH | 34.23 | 18237113 | |
563 | Phosphorylation | TFRLKTRSWAGERSR HHCHHCCCCCCHHHH | 26.89 | 23898821 |
Modified Location | Modified Residue | Modification | Type of Upstream Proteins | Gene Name of Upstream Proteins | UniProt AC of Upstream Proteins | Sources |
---|---|---|---|---|---|---|
50 | S | Phosphorylation | Kinase | PLK1 | P53350 | PSP |
50 | S | Phosphorylation | Kinase | CDK1 | P06493 | PSP |
58 | T | Phosphorylation | Kinase | PLK1 | P53350 | PSP |
101 | S | Phosphorylation | Kinase | MAPK8 | P45983 | GPS |
103 | S | Phosphorylation | Kinase | MAPK8 | P45983 | GPS |
127 | T | Phosphorylation | Kinase | PLK1 | P53350 | PSP |
146 | S | Phosphorylation | Kinase | CDK1 | P06493 | PSP |
160 | S | Phosphorylation | Kinase | CDK1 | P06493 | PhosphoELM |
167 | T | Phosphorylation | Kinase | PLK1 | P53350 | PSP |
169 | S | Phosphorylation | Kinase | MELK | Q14680 | Uniprot |
169 | S | Phosphorylation | Kinase | MAPKAPK2 | P49137 | PSP |
186 | S | Phosphorylation | Kinase | CK2_GROUP | - | PhosphoELM |
186 | S | Phosphorylation | Kinase | CK2-FAMILY | - | GPS |
186 | S | Phosphorylation | Kinase | CSNK2A1 | P68400 | GPS |
187 | S | Phosphorylation | Kinase | CK2_GROUP | - | PhosphoELM |
187 | S | Phosphorylation | Kinase | CK2-FAMILY | - | GPS |
187 | S | Phosphorylation | Kinase | CSNK2A1 | P68400 | GPS |
209 | S | Phosphorylation | Kinase | PLK1 | P53350 | PSP |
230 | S | Phosphorylation | Kinase | CHEK1 | O14757 | GPS |
249 | S | Phosphorylation | Kinase | P38-SUBFAMILY | - | GPS |
249 | S | Phosphorylation | Kinase | MAPK11 | Q15759 | GPS |
253 | S | Phosphorylation | Kinase | AURKA | O14965 | GPS |
265 | T | Phosphorylation | Kinase | PLK1 | P53350 | PSP |
291 | S | Phosphorylation | Kinase | PLK1 | P53350 | PSP |
307 | S | Phosphorylation | Kinase | CDK1 | P06493 | PSP |
321 | S | Phosphorylation | Kinase | CDK1 | P06493 | PSP |
323 | S | Phosphorylation | Kinase | MELK | Q14680 | Uniprot |
323 | S | Phosphorylation | Kinase | MAPK14 | Q16539 | Uniprot |
323 | S | Phosphorylation | Kinase | MAPK2 | P49137 | PhosphoELM |
353 | S | Phosphorylation | Kinase | AKT-FAMILY | - | GPS |
353 | S | Phosphorylation | Kinase | AURA | O14965 | PSP |
353 | S | Phosphorylation | Kinase | PLK1 | P53350 | PSP |
353 | S | Phosphorylation | Kinase | MAPKAPK2 | P49137 | PSP |
353 | S | Phosphorylation | Kinase | RPS6KA1 | Q15418 | GPS |
355 | T | Phosphorylation | Kinase | RPS6KA1 | Q15418 | GPS |
375 | S | Phosphorylation | Kinase | BRSK1 | Q8TDC3-2 | GPS |
375 | S | Phosphorylation | Kinase | BRSK1 | Q8TDC3 | Uniprot |
375 | S | Phosphorylation | Kinase | PLK1 | P53350 | PSP |
375 | S | Phosphorylation | Kinase | MAPK14 | Q16539 | Uniprot |
375 | S | Phosphorylation | Kinase | MAPKAPK2 | P49137 | PSP |
397 | S | Phosphorylation | Kinase | PLK1 | P53350 | PSP |
404 | T | Phosphorylation | Kinase | PLK1 | P53350 | PSP |
465 | S | Phosphorylation | Kinase | PLK1 | P53350 | PSP |
513 | S | Phosphorylation | Kinase | PLK1 | P53350 | PSP |
563 | S | Phosphorylation | Kinase | CHEK1 | O14757 | GPS |
- | K | Ubiquitination | E3 ubiquitin ligase | BTRC | Q9Y297 | PMID:21807946 |
- | K | Ubiquitination | E3 ubiquitin ligase | FBXW11 | Q9UKB1 | PMID:21807946 |
* Distance = the distance between SAP position and PTM sites.
Modified Location | Modification | Variant Position (Distance <= 10) |
Residue Change | SAP | Related Disease | Reference |
---|---|---|---|---|---|---|
Oops, there are no SNP-PTM records of MPIP2_HUMAN !! |
Kegg Disease | ||||||
---|---|---|---|---|---|---|
OMIM Disease | ||||||
There are no disease associations of PTM sites. | ||||||
Kegg Drug | ||||||
DrugBank | ||||||
There are no disease associations of PTM sites. |
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Phosphorylation | |
Reference | PubMed |
"MAPKAP kinase-2 is a cell cycle checkpoint kinase that regulates theG2/M transition and S phase progression in response to UVirradiation."; Manke I.A., Nguyen A., Lim D., Stewart M.Q., Elia A.E., Yaffe M.B.; Mol. Cell 17:37-48(2005). Cited for: PHOSPHORYLATION AT SER-323 BY MAPKAPK2. | |
"CDC25B phosphorylated by pEg3 localizes to the centrosome and thespindle poles at mitosis."; Mirey G., Chartrain I., Froment C., Quaranta M., Bouche J.P.,Monsarrat B., Tassan J.P., Ducommun B.; Cell Cycle 4:806-811(2005). Cited for: PHOSPHORYLATION AT SER-169, AND SUBCELLULAR LOCATION. | |
"Phosphorylation of CDC25B by Aurora-A at the centrosome contributesto the G2-M transition."; Dutertre S., Cazales M., Quaranta M., Froment C., Trabut V.,Dozier C., Mirey G., Bouche J.P., Theis-Febvre N., Schmitt E.,Monsarrat B., Prigent C., Ducommun B.; J. Cell Sci. 117:2523-2531(2004). Cited for: SUBCELLULAR LOCATION, AND PHOSPHORYLATION AT SER-353 BY AURKA. | |
"Human pEg3 kinase associates with and phosphorylates CDC25Bphosphatase: a potential role for pEg3 in cell cycle regulation."; Davezac N., Baldin V., Blot J., Ducommun B., Tassan J.P.; Oncogene 21:7630-7641(2002). Cited for: PHOSPHORYLATION AT SER-323. | |
"Initiation of a G2/M checkpoint after ultraviolet radiation requiresp38 kinase."; Bulavin D.V., Higashimoto Y., Popoff I.J., Gaarde W.A., Basrur V.,Potapova O., Appella E., Fornace A.J. Jr.; Nature 411:102-107(2001). Cited for: PHOSPHORYLATION AT SER-323 AND SER-375, AND INTERACTION WITH MAPK14AND 14-3-3 PROTEINS. |