产品: Phospho-MEK1/2 (Ser218+Ser222/Ser222+Ser226) 抗体
货号: AF8035
来源: Rabbit
应用: WB, IHC, IF/ICC, ELISA(peptide)
反应: Human, Mouse, Rat
预测: Pig, Zebrafish, Bovine, Horse, Sheep, Rabbit, Dog, Chicken, Xenopus
分子量: 45kD; 43kD,44kD(Calculated).
蛋白号: Q02750 | P36507
RRID: AB_2840098

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   规格 价格 库存
 100ul ¥2500 现货
 200ul ¥3500 现货

货期: 当天发货

产品描述

来源:
Rabbit
应用:
WB 1:1000-3000, IHC 1:50-1:200, IF/ICC 1:100-1:500, ELISA(peptide) 1:20000-1:40000
*The optimal dilutions should be determined by the end user.
反应:
Human,Mouse,Rat
预测:
Pig(100%), Zebrafish(100%), Bovine(100%), Horse(100%), Sheep(100%), Rabbit(100%), Dog(100%), Chicken(100%), Xenopus(100%)
克隆:
Polyclonal
特异性:
Phospho-MEK1/2 (Ser218+Ser222/Ser222+Ser226) Antibody detects endogenous levels of MEK1/2 only when phosphorylated at S218+S222(MEK1)/S222+S226(MEK2).
RRID:
AB_2840098
引用格式: Affinity Biosciences Cat# AF8035, RRID:AB_2840098.
纯化:
The antibody is from purified rabbit serum by affinity purification via sequential chromatography on phospho-peptide and non-phospho-peptide affinity columns.
保存:
Rabbit IgG in phosphate buffered saline , pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol. Store at -20 °C. Stable for 12 months from date of receipt.
别名:

展开/折叠

Dual specificity mitogen activated protein kinase kinase 1; Dual specificity mitogen-activated protein kinase kinase 1; ERK activator kinase 1; MAP kinase kinase 1; MAP kinase/Erk kinase 1; MAP2K1; MAPK/ERK kinase 1; MAPKK 1; MAPKK1; MEK 1; Mek1; MEKK1; Mitogen activated protein kinase kinase 1; MKK 1; MKK1; MP2K1_HUMAN; PRKMK1; Protein kinase mitogen activated kinase 1 (MAP kinase kinase 1); Protein kinase mitogen activated, kinase 1; Cardiofaciocutaneous syndrome; CFC syndrome; CFC4; Dual specificity mitogen activated protein kinase kinase 2; Dual specificity mitogen-activated protein kinase kinase 2; ERK activator kinase 2; FLJ26075; MAP kinase kinase 2; map2k2; MAPK / ERK kinase 2; MAPK/ERK kinase 2; MAPKK 2; MAPKK2; MEK 2; MEK2; Microtubule associated protein kinase kinase 2; Mitogen activated protein kinase kinase 2; Mitogen activated protein kinase kinase 2 p45; MKK 2; MKK2; MP2K2_HUMAN; OTTHUMP00000165826; OTTHUMP00000165827; PRKMK 2; PRKMK2;

抗原和靶标

免疫原:
Uniprot:
基因/基因ID:
表达特异性:
Q02750 MP2K1_HUMAN:

Widely expressed, with extremely low levels in brain.

蛋白序列:
MPKKKPTPIQLNPAPDGSAVNGTSSAETNLEALQKKLEELELDEQQRKRLEAFLTQKQKVGELKDDDFEKISELGAGNGGVVFKVSHKPSGLVMARKLIHLEIKPAIRNQIIRELQVLHECNSPYIVGFYGAFYSDGEISICMEHMDGGSLDQVLKKAGRIPEQILGKVSIAVIKGLTYLREKHKIMHRDVKPSNILVNSRGEIKLCDFGVSGQLIDSMANSFVGTRSYMSPERLQGTHYSVQSDIWSMGLSLVEMAVGRYPIPPPDAKELELMFGCQVEGDAAETPPRPRTPGRPLSSYGMDSRPPMAIFELLDYIVNEPPPKLPSGVFSLEFQDFVNKCLIKNPAERADLKQLMVHAFIKRSDAEEVDFAGWLCSTIGLNQPSTPTHAAGV

MLARRKPVLPALTINPTIAEGPSPTSEGASEANLVDLQKKLEELELDEQQKKRLEAFLTQKAKVGELKDDDFERISELGAGNGGVVTKVQHRPSGLIMARKLIHLEIKPAIRNQIIRELQVLHECNSPYIVGFYGAFYSDGEISICMEHMDGGSLDQVLKEAKRIPEEILGKVSIAVLRGLAYLREKHQIMHRDVKPSNILVNSRGEIKLCDFGVSGQLIDSMANSFVGTRSYMAPERLQGTHYSVQSDIWSMGLSLVELAVGRYPIPPPDAKELEAIFGRPVVDGEEGEPHSISPRPRPPGRPVSGHGMDSRPAMAIFELLDYIVNEPPPKLPNGVFTPDFQEFVNKCLIKNPAERADLKMLTNHTFIKRSEVEEVDFAGWLCKTLRLNQPGTPTRTAV

种属预测

种属预测:

score>80的预测可信度较高,可尝试用于WB检测。*预测模型主要基于免疫原序列比对,结果仅作参考,不作为质保凭据。

Species
Results
Score
Pig
100
Horse
100
Bovine
100
Sheep
100
Dog
100
Xenopus
100
Zebrafish
100
Chicken
100
Rabbit
100
Model Confidence:
High(score>80) Medium(80>score>50) Low(score<50) No confidence

翻译修饰 - Q02750/P36507 作为底物

Site PTM Type Enzyme
M1 Acetylation
K6 Ubiquitination
T13 Acetylation
S23 Phosphorylation
T25 Phosphorylation
S26 Phosphorylation P36507 (MAP2K2)
S30 Phosphorylation
K40 Ubiquitination
K51 Ubiquitination
T59 Phosphorylation O14757 (CHEK1)
K61 Ubiquitination
K63 Ubiquitination
K68 Ubiquitination
K88 Ubiquitination
S94 Phosphorylation
K101 Ubiquitination
K108 Sumoylation
K108 Ubiquitination
K163 Ubiquitination
K196 Ubiquitination
S198 Phosphorylation
K209 Ubiquitination
S216 Phosphorylation
S222 Acetylation
S222 Phosphorylation P15056 (BRAF) , P41279 (MAP3K8) , O15530 (PDPK1) , P53350 (PLK1)
S226 Acetylation
S226 Phosphorylation O15530 (PDPK1) , P53350 (PLK1) , P15056 (BRAF) , P41279 (MAP3K8) , P36507 (MAP2K2)
T230 Phosphorylation
S293 Phosphorylation
S295 Phosphorylation
S306 Phosphorylation
S312 Phosphorylation
K352 Ubiquitination
K361 Ubiquitination
K370 Ubiquitination
S372 Phosphorylation
K385 Ubiquitination
T394 Phosphorylation
T396 Phosphorylation P36507 (MAP2K2)
T398 Phosphorylation
Site PTM Type Enzyme
T23 Phosphorylation
S24 Phosphorylation Q6VAB6 (KSR2)
S25 Phosphorylation
K36 Ubiquitination
T55 Phosphorylation O14757 (CHEK1)
K57 Ubiquitination
K64 Ubiquitination
K70 Ubiquitination
S72 Phosphorylation Q6VAB6 (KSR2)
K88 Ubiquitination
K97 Ubiquitination
K104 Sumoylation
K104 Ubiquitination
K168 Ubiquitination
K175 Acetylation
K175 Ubiquitination
K192 Ubiquitination
S194 Phosphorylation
K205 Ubiquitination
S212 Phosphorylation
S218 Phosphorylation P53350 (PLK1) , O15530 (PDPK1) , P15056 (BRAF) , P41279 (MAP3K8) , Q5TCX8 (MAP3K21) , P00540 (MOS) , Q13233 (MAP3K1) , P10398 (ARAF) , P04049 (RAF1)
S222 Phosphorylation Q5TCX8 (MAP3K21) , P10398 (ARAF) , Q13233 (MAP3K1) , P53350 (PLK1) , O15530 (PDPK1) , P00540 (MOS) , P04049 (RAF1) , P15056 (BRAF) , P41279 (MAP3K8)
T226 Phosphorylation
S231 Phosphorylation
S244 Phosphorylation P41279 (MAP3K8)
S248 Phosphorylation P41279 (MAP3K8)
T286 Phosphorylation Q00535 (CDK5) , P06493 (CDK1) , P27361 (MAPK3) , P28482 (MAPK1)
T292 Phosphorylation P06493 (CDK1) , P27361 (MAPK3) , Q00535 (CDK5) , P28482 (MAPK1)
S298 Phosphorylation Q13153 (PAK1) , Q02750 (MAP2K1) , O75914 (PAK3)
S299 Phosphorylation
Y300 Phosphorylation Q02750 (MAP2K1)
K344 Ubiquitination
K353 Ubiquitination
K362 Acetylation
S385 Phosphorylation
T386 Phosphorylation P28482 (MAPK1) , P27361 (MAPK3)
T388 Phosphorylation

翻译修饰 - Q02750/P36507 作为激酶

Substrate Site Source
P05787 (KRT8) S74 Uniprot
P27361 (MAPK3) T202 Uniprot
P27361 (MAPK3) Y204 Uniprot
P28482 (MAPK1) T185 Uniprot
P28482 (MAPK1) Y187 Uniprot
P36507 (MAP2K2) S26 Uniprot
P36507 (MAP2K2) S226 Uniprot
P36507 (MAP2K2) T396 Uniprot
P55211-1 (CASP9) T125 Uniprot
Substrate Site Source
O75676-1 (RPS6KA4) S196 Uniprot
O75676-1 (RPS6KA4) S343 Uniprot
O75676-1 (RPS6KA4) S347 Uniprot
O75676-1 (RPS6KA4) S360 Uniprot
O75676-2 (RPS6KA4) T562 Uniprot
O75676-1 (RPS6KA4) T568 Uniprot
P04049 (RAF1) S338 Uniprot
P05787 (KRT8) S74 Uniprot
P15172 (MYOD1) Y156 Uniprot
P17542 (TAL1) S122 Uniprot
P27361 (MAPK3) T202 Uniprot
P27361 (MAPK3) Y204 Uniprot
P27361 (MAPK3) T207 Uniprot
P27361 (MAPK3) Y210 Uniprot
P28482 (MAPK1) T185 Uniprot
P28482 (MAPK1) Y187 Uniprot
P32121 (ARRB2) T382 Uniprot
P35568 (IRS1) S307 Uniprot
P37231 (PPARG) S112 Uniprot
P49841 (GSK3B) Y216 Uniprot
P55211-1 (CASP9) T125 Uniprot
Q00613 (HSF1) S326 Uniprot
Q02750 (MAP2K1) S298 Uniprot
Q02750 (MAP2K1) Y300 Uniprot
Q02750-1 (MAP2K1) S304 Uniprot

研究背景

功能:

Dual specificity protein kinase which acts as an essential component of the MAP kinase signal transduction pathway. Binding of extracellular ligands such as growth factors, cytokines and hormones to their cell-surface receptors activates RAS and this initiates RAF1 activation. RAF1 then further activates the dual-specificity protein kinases MAP2K1/MEK1 and MAP2K2/MEK2. Both MAP2K1/MEK1 and MAP2K2/MEK2 function specifically in the MAPK/ERK cascade, and catalyze the concomitant phosphorylation of a threonine and a tyrosine residue in a Thr-Glu-Tyr sequence located in the extracellular signal-regulated kinases MAPK3/ERK1 and MAPK1/ERK2, leading to their activation and further transduction of the signal within the MAPK/ERK cascade. Activates BRAF in a KSR1 or KSR2-dependent manner; by binding to KSR1 or KSR2 releases the inhibitory intramolecular interaction between KSR1 or KSR2 protein kinase and N-terminal domains which promotes KSR1 or KSR2-BRAF dimerization and BRAF activation. Depending on the cellular context, this pathway mediates diverse biological functions such as cell growth, adhesion, survival and differentiation, predominantly through the regulation of transcription, metabolism and cytoskeletal rearrangements. One target of the MAPK/ERK cascade is peroxisome proliferator-activated receptor gamma (PPARG), a nuclear receptor that promotes differentiation and apoptosis. MAP2K1/MEK1 has been shown to export PPARG from the nucleus. The MAPK/ERK cascade is also involved in the regulation of endosomal dynamics, including lysosome processing and endosome cycling through the perinuclear recycling compartment (PNRC), as well as in the fragmentation of the Golgi apparatus during mitosis.

翻译修饰:

Phosphorylation at Ser-218 and Ser-222 by MAP kinase kinase kinases (BRAF or MEKK1) positively regulates kinase activity. Also phosphorylated at Thr-292 by MAPK1/ERK2 and at Ser-298 by PAK. MAPK1/ERK2 phosphorylation of Thr-292 occurs in response to cellular adhesion and leads to inhibition of Ser-298 phosphorylation by PAK.

Acetylation by Yersinia yopJ prevents phosphorylation and activation, thus blocking the MAPK signaling pathway.

细胞定位:

Cytoplasm>Cytoskeleton>Microtubule organizing center>Centrosome. Cytoplasm>Cytoskeleton>Microtubule organizing center>Spindle pole body. Cytoplasm. Nucleus. Membrane>Peripheral membrane protein.
Note: Localizes at centrosomes during prometaphase, midzone during anaphase and midbody during telophase/cytokinesis (PubMed:14737111). Membrane localization is probably regulated by its interaction with KSR1 (PubMed:10409742).

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionSubcellular location
组织特异性:

Widely expressed, with extremely low levels in brain.

亚基结构:

Found in a complex with at least BRAF, HRAS, MAP2K1, MAPK3/ERK1 and RGS14 (By similarity). Forms a heterodimer with MAP2K2/MEK2 (By similarity). Forms heterodimers with KSR2 which further dimerize to form tetramers (By similarity). Interacts with KSR1 or KSR2 and BRAF; the interaction with KSR1 or KSR2 mediates KSR1-BRAF or KSR2-BRAF dimerization. Interacts with ARBB2, LAMTOR3, MAPK1/ERK2 and RAF1 (By similarity). Interacts with MORG1 (By similarity). Interacts with PPARG. Interacts with isoform 1 of VRK2. Interacts with SGK1. Interacts with BIRC6/bruce. Interacts with KAT7; the interaction promotes KAT7 phosphorylation (By similarity).

(Microbial infection) Interacts with Yersinia yopJ.

蛋白家族:

The proline-rich region localized between residues 270 and 307 is important for binding to RAF1 and activation of MAP2K1/MEK1.

Belongs to the protein kinase superfamily. STE Ser/Thr protein kinase family. MAP kinase kinase subfamily.

功能:

Catalyzes the concomitant phosphorylation of a threonine and a tyrosine residue in a Thr-Glu-Tyr sequence located in MAP kinases. Activates the ERK1 and ERK2 MAP kinases (By similarity). Activates BRAF in a KSR1 or KSR2-dependent manner; by binding to KSR1 or KSR2 releases the inhibitory intramolecular interaction between KSR1 or KSR2 protein kinase and N-terminal domains which promotes KSR1 or KSR2-BRAF dimerization and BRAF activation.

翻译修饰:

MAPKK is itself dependent on Ser/Thr phosphorylation for activity catalyzed by MAP kinase kinase kinases (RAF or MEKK1). Phosphorylated by MAP2K1/MEK1 (By similarity).

Acetylation of Ser-222 and Ser-226 by Yersinia yopJ prevents phosphorylation and activation, thus blocking the MAPK signaling pathway.

细胞定位:

Cytoplasm. Membrane>Peripheral membrane protein.
Note: Membrane localization is probably regulated by its interaction with KSR1.

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionSubcellular location
亚基结构:

Interacts with MORG1 (By similarity). Interacts with SGK1. Interacts with KSR1. Interacts with KSR1 and BRAF; the interaction with KSR1 mediates KSR1-BRAF dimerization. Interacts with GLS.

蛋白家族:

Belongs to the protein kinase superfamily. STE Ser/Thr protein kinase family. MAP kinase kinase subfamily.

研究领域

· Cellular Processes > Cell growth and death > Oocyte meiosis.   (View pathway)

· Cellular Processes > Transport and catabolism > Autophagy - animal.   (View pathway)

· Cellular Processes > Cell growth and death > Apoptosis.   (View pathway)

· Cellular Processes > Cell growth and death > Cellular senescence.   (View pathway)

· Cellular Processes > Cellular community - eukaryotes > Focal adhesion.   (View pathway)

· Cellular Processes > Cellular community - eukaryotes > Gap junction.   (View pathway)

· Cellular Processes > Cellular community - eukaryotes > Signaling pathways regulating pluripotency of stem cells.   (View pathway)

· Cellular Processes > Cell motility > Regulation of actin cytoskeleton.   (View pathway)

· Environmental Information Processing > Signal transduction > MAPK signaling pathway.   (View pathway)

· Environmental Information Processing > Signal transduction > ErbB signaling pathway.   (View pathway)

· Environmental Information Processing > Signal transduction > Ras signaling pathway.   (View pathway)

· Environmental Information Processing > Signal transduction > Rap1 signaling pathway.   (View pathway)

· Environmental Information Processing > Signal transduction > cGMP-PKG signaling pathway.   (View pathway)

· Environmental Information Processing > Signal transduction > cAMP signaling pathway.   (View pathway)

· Environmental Information Processing > Signal transduction > HIF-1 signaling pathway.   (View pathway)

· Environmental Information Processing > Signal transduction > FoxO signaling pathway.   (View pathway)

· Environmental Information Processing > Signal transduction > Sphingolipid signaling pathway.   (View pathway)

· Environmental Information Processing > Signal transduction > Phospholipase D signaling pathway.   (View pathway)

· Environmental Information Processing > Signal transduction > mTOR signaling pathway.   (View pathway)

· Environmental Information Processing > Signal transduction > PI3K-Akt signaling pathway.   (View pathway)

· Environmental Information Processing > Signal transduction > Apelin signaling pathway.   (View pathway)

· Environmental Information Processing > Signal transduction > TNF signaling pathway.   (View pathway)

· Human Diseases > Drug resistance: Antineoplastic > EGFR tyrosine kinase inhibitor resistance.

· Human Diseases > Drug resistance: Antineoplastic > Endocrine resistance.

· Human Diseases > Neurodegenerative diseases > Prion diseases.

· Human Diseases > Substance dependence > Alcoholism.

· Human Diseases > Infectious diseases: Viral > Hepatitis B.

· Human Diseases > Infectious diseases: Viral > Influenza A.

· Human Diseases > Infectious diseases: Viral > Human papillomavirus infection.

· Human Diseases > Cancers: Overview > Pathways in cancer.   (View pathway)

· Human Diseases > Cancers: Overview > Proteoglycans in cancer.

· Human Diseases > Cancers: Overview > MicroRNAs in cancer.

· Human Diseases > Cancers: Specific types > Colorectal cancer.   (View pathway)

· Human Diseases > Cancers: Specific types > Renal cell carcinoma.   (View pathway)

· Human Diseases > Cancers: Specific types > Pancreatic cancer.   (View pathway)

· Human Diseases > Cancers: Specific types > Endometrial cancer.   (View pathway)

· Human Diseases > Cancers: Specific types > Glioma.   (View pathway)

· Human Diseases > Cancers: Specific types > Prostate cancer.   (View pathway)

· Human Diseases > Cancers: Specific types > Thyroid cancer.   (View pathway)

· Human Diseases > Cancers: Specific types > Melanoma.   (View pathway)

· Human Diseases > Cancers: Specific types > Bladder cancer.   (View pathway)

· Human Diseases > Cancers: Specific types > Chronic myeloid leukemia.   (View pathway)

· Human Diseases > Cancers: Specific types > Acute myeloid leukemia.   (View pathway)

· Human Diseases > Cancers: Specific types > Non-small cell lung cancer.   (View pathway)

· Human Diseases > Cancers: Specific types > Breast cancer.   (View pathway)

· Human Diseases > Cancers: Specific types > Hepatocellular carcinoma.   (View pathway)

· Human Diseases > Cancers: Specific types > Gastric cancer.   (View pathway)

· Human Diseases > Cancers: Overview > Central carbon metabolism in cancer.   (View pathway)

· Human Diseases > Cancers: Overview > Choline metabolism in cancer.   (View pathway)

· Organismal Systems > Immune system > Chemokine signaling pathway.   (View pathway)

· Organismal Systems > Circulatory system > Vascular smooth muscle contraction.   (View pathway)

· Organismal Systems > Development > Osteoclast differentiation.   (View pathway)

· Organismal Systems > Immune system > Toll-like receptor signaling pathway.   (View pathway)

· Organismal Systems > Immune system > Natural killer cell mediated cytotoxicity.   (View pathway)

· Organismal Systems > Immune system > T cell receptor signaling pathway.   (View pathway)

· Organismal Systems > Immune system > B cell receptor signaling pathway.   (View pathway)

· Organismal Systems > Immune system > Fc epsilon RI signaling pathway.   (View pathway)

· Organismal Systems > Immune system > Fc gamma R-mediated phagocytosis.   (View pathway)

· Organismal Systems > Nervous system > Long-term potentiation.

· Organismal Systems > Nervous system > Neurotrophin signaling pathway.   (View pathway)

· Organismal Systems > Nervous system > Cholinergic synapse.

· Organismal Systems > Nervous system > Serotonergic synapse.

· Organismal Systems > Nervous system > Long-term depression.

· Organismal Systems > Endocrine system > Insulin signaling pathway.   (View pathway)

· Organismal Systems > Endocrine system > Progesterone-mediated oocyte maturation.

· Organismal Systems > Endocrine system > Estrogen signaling pathway.   (View pathway)

· Organismal Systems > Endocrine system > Melanogenesis.

· Organismal Systems > Endocrine system > Prolactin signaling pathway.   (View pathway)

· Organismal Systems > Endocrine system > Thyroid hormone signaling pathway.   (View pathway)

· Organismal Systems > Endocrine system > Oxytocin signaling pathway.

· Organismal Systems > Endocrine system > Relaxin signaling pathway.

文献引用

1). Tao Y et al. LncRNA CD27-AS1 promotes acute myeloid leukemia progression through the miR-224-5p/PBX3 signaling circuit. Cell Death Dis 2021 May 18;12(6):510. (PubMed: 34006845) [IF=9.685]

Application: WB    Species: Human    Sample: AML cells

Fig. 5 CD27-AS1 regulates MAPK signaling pathway in the AML cell lines. a HL-60 and KG-1 cells were infected with LV-CD27-AS1 and LV-CD27- AS1-Sh1. Protein levels of P38, p-P38, JNK, p-JNK, p-C-raf, p-MEK1/2, ERK, and p-ERK were detected using western blotting. b Densitometry analysis of protein levels in both cells was performed. c U0126, a MEK1/2 inhibitor, was used to treat the AML cells with CD27-AS1 upregulation. Relative protein levels of p-ERK and ERK were measured using western blotting. d CCK-8 assay was performed to check cell viability. N = 3. Data were shown as means ± SD. *P < 0.05, **P < 0.01, and ***P < 0.001.

2). Wang J et al. Circ_0011385 knockdown inhibits cell proliferation, migration and invasion, whereas promotes cell apoptosis by regulating miR-330-3p/MYO6 axis in colorectal cancer. Biomed J 2022 Jan 25;S2319-4170(22)00007-5. (PubMed: 35091088) [IF=7.892]

3). Xing QQ et al. Serum proteomics analysis based on label-free revealed the protective effect of Chinese herbal formula Gu-Ben-Fang-Xiao. Biomed Pharmacother 2019 Sep 11;119:109390 (PubMed: 31520916) [IF=7.419]

Application: WB    Species: mouse    Sample: lung

Figure S2. |The effect of GBFXD on RAF/MEK/ERK signaling pathway. Western blotting was used to detect the relative protein expressions of P-RAF/RAF, P-MEK/MEK, and P-ERK/ERK.

4). Bi A et al. l-Theanine attenuates neointimal hyperplasia via suppression of vascular smooth muscle cell phenotypic modulation. J Nutr Biochem 2020 Apr 8;82:108398 (PubMed: 32402912) [IF=6.117]

Application: WB    Species: Rat    Sample: VSMCs

Fig. 5. L-Theanine inhibited activation of ERK1/2 but not STAT3 induced by PDGF-BB and AngII in VSMCs. (a, c) VSMCs were stimulated with PDGF-BB or AngII for the indicated times with or without L-theanine (200 μM). The protein levels of phospho-ERK1/2, ERK, phospho-STAT3, STAT3 were determined using western blot analysis. For (a), *P(5 min)=0.034, *P(10 min)=0.028, **P(30 min)=0.002, compared to the control group; for (c), *P(5 min)=0.041, **P(10 min)=0.008, **P(15 min)=0.008, **P(30 min)=0.016, compared with the control group. ***Pb.001, compared with control group; ns, no significance. (b, d) VSMCs were pretreated with L-theanine (0, 100, 200, 400 μM) for 1 h and then stimulated with PDGF-BB (20 ng/ ml) or AngII (100 nM) for 10 min. The protein levels of phospho-ERK1/2, ERK, phospho-STAT3, STAT3 were determined by using western blot analysis. For (b), **P(L-The 100 μM)= 0.004, compared with the PDGF-BB group; for (d), *P(L-The 100 μM)=0.024, **P(L-The 200 μM)=0.003, compared with the AngII group. ###Pb.001 compared with control group; ***Pb.001, compared with PDGF-BB or AngII group; ns, no significance. Data of 3 independent experiments performed in duplicates are presented as mean±S.E.M. Data were analyzed by two-way ANOVA (a, c) and one-way ANOVA (b, d) with Fisher's LSD test.

5). Wu J et al. β-Patchoulene Ameliorates Water Transport and the Mucus Barrier in 5-Fluorouracil-Induced Intestinal Mucositis Rats via the cAMP/PKA/CREB Signaling Pathway. Front Pharmacol 2021 Aug 25;12:689491. (PubMed: 34512326) [IF=5.810]

6). Zhang J et al. Loganin alleviates sepsis-induced acute lung injury by regulating macrophage polarization and inhibiting NLRP3 inflammasome activation. Int Immunopharmacol 2021 Jun;95:107529. (PubMed: 33744777) [IF=5.714]

7). Li N et al. Activation of Aquaporin 5 by carcinogenic Helicobacter pylori infection promotes epithelial‐mesenchymal transition via the MEK/ERK pathway. Helicobacter 2021 Jul 30;e12842. (PubMed: 34331360) [IF=5.182]

Application: WB    Species: Human    Sample: AGS cell

FIGURE 6 Helicobacter pylori infection activates AQP5 to induce EMT process via upregulation of MEK/ERK signaling pathway. (A) The markers of MEK/ERK signaling pathway including p-ERK1/2, ERK1/2, p-MEK, MEK, and Myc were detected in cells transfected with AQP5-overexpressed plasmid. (B, C) After AGS (B) and GES-1 (C) cells infection with H. pylori and treatment with AQP5 siRNA, the markers of MEK/ERK signaling pathway was examined by Western blot. (D) Downstream genes of MEK/ERK signaling pathway including ELK1, Myc, and c-FOS were detected by RT-PCR analysis in AGS cells treated with H. pylori and AQP5 siRNA. (E) Western blot analysis was performed to detect the expression of EMT markers in cells following H. pylori infection and treatment with ERK inhibitor U0126. (F) Schematic for the proposed mechanism of action of AQP5 in H. pylori CagA-associated gastric tumorigenesis. CagA+ H. pylori delivers CagA into gastric epithelial cells and then induces oncogene AQP5 expression. Subsequently, the MEK/ERK signaling pathway is activated, which induces the EMT program and thereby further promoting gastric tumorigenesis

8). Wu Z et al. Traditional Chinese Medicine CFF-1 induced cell growth inhibition, autophagy, and apoptosis via inhibiting EGFR-related pathways in prostate cancer. Cancer Med 2018 Apr;7(4):1546-1559 (PubMed: 29533017) [IF=4.711]

9). Wang C et al. Histidine-rich calcium binding protein promotes gastric cancer cell proliferation, migration, invasion and epithelial-mesenchymal transition through Raf/MEK/ERK signaling. J Cancer 2022 Jan 4;13(4):1073-1085. (PubMed: 35281855) [IF=4.478]

10). Liu O et al. Keratin 80 regulated by miR-206/ETS1 promotes tumor progression via the MEK/ERK pathway in ovarian cancer. J Cancer 2021 Sep 24;12(22):6835-6850. (PubMed: 34659572) [IF=4.478]

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