HER2/ErbB2 Antibody - #AF7681

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製品: HER2/ErbB2 Antibody
カタログ: AF7681
タンパク質の説明: Rabbit polyclonal antibody to HER2/ErbB2
アプリケーション: WB IF/ICC
Cited expt.: WB, IF/ICC
反応性: Human, Mouse, Rat
予測: Pig, Zebrafish, Bovine, Horse, Sheep, Rabbit, Dog, Chicken, Xenopus
分子量: 138kDa; 138kD(Calculated).
ユニプロット: P04626
RRID: AB_2844045

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MS Report
HPLC Report
MSDS
説明書
COA
プロトコル
WB Handbook
IHC Protocol
IF/ICC Protocol

製品説明

ソース:
Rabbit
アプリケーション:
WB 1:500-1:2000, IF/ICC 1:100-1:500
*The optimal dilutions should be determined by the end user.
*Tips:

WB: For western blot detection of denatured protein samples. IHC: For immunohistochemical detection of paraffin sections (IHC-p) or frozen sections (IHC-f) of tissue samples. IF/ICC: For immunofluorescence detection of cell samples. ELISA(peptide): For ELISA detection of antigenic peptide.

反応性:
Human,Mouse,Rat
予測:
Pig(100%), Zebrafish(89%), Bovine(100%), Horse(100%), Sheep(100%), Rabbit(100%), Dog(100%), Chicken(100%), Xenopus(100%)
クローナリティ:
Polyclonal
特異性:
HER2/ErbB2 Antibody detects endogenous levels of total HER2/ErbB2.
RRID:
AB_2844045
引用形式: Affinity Biosciences Cat# AF7681, RRID:AB_2844045.
コンジュゲート:
Unconjugated.
精製:
The antiserum was purified by peptide affinity chromatography using SulfoLink™ Coupling Resin (Thermo Fisher Scientific).
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.
別名:

折りたたみ／展開

Verb b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog; C erb B2/neu protein; CD340; CD340 antigen; Cerb B2/neu protein; CerbB2; Erb b2 receptor tyrosine kinase 2; ERBB2; ERBB2_HUMAN; HER 2; HER 2/NEU; HER2; Herstatin; Human epidermal growth factor receptor 2; Metastatic lymph node gene 19 protein; MLN 19; MLN19; NEU; NEU proto oncogene; Neuro/glioblastoma derived oncogene homolog; Neuroblastoma/glioblastoma derived oncogene homolog; NGL; p185erbB2; Proto-oncogene c-ErbB-2; Proto-oncogene Neu; Receptor tyrosine-protein kinase erbB-2; TKR1; Tyrosine kinase type cell surface receptor HER2; Tyrosine kinase-type cell surface receptor HER2; V erb b2 avian erythroblastic leukemia viral oncogene homolog 2 (neuro/glioblastoma derived oncogene homolog); V erb b2 avian erythroblastic leukemia viral oncogene homolog 2; V erb b2 avian erythroblastic leukemia viral oncoprotein 2; V erb b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog (avian); V erb b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog; Verb b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog (avian);

免疫原

免疫原:

A synthesized peptide derived from human HER2/ErbB2, corresponding to a region within the internal amino acids.

Uniprot:

P04626(ERBB2_HUMAN) >>Visit HPA database.

遺伝子(ID):
ERBB2(2064)
発現特異性:
P04626 ERBB2_HUMAN:

Expressed in a variety of tumor tissues including primary breast tumors and tumors from small bowel, esophagus, kidney and mouth.

タンパク質配列:
MELAALCRWGLLLALLPPGAASTQVCTGTDMKLRLPASPETHLDMLRHLYQGCQVVQGNLELTYLPTNASLSFLQDIQEVQGYVLIAHNQVRQVPLQRLRIVRGTQLFEDNYALAVLDNGDPLNNTTPVTGASPGGLRELQLRSLTEILKGGVLIQRNPQLCYQDTILWKDIFHKNNQLALTLIDTNRSRACHPCSPMCKGSRCWGESSEDCQSLTRTVCAGGCARCKGPLPTDCCHEQCAAGCTGPKHSDCLACLHFNHSGICELHCPALVTYNTDTFESMPNPEGRYTFGASCVTACPYNYLSTDVGSCTLVCPLHNQEVTAEDGTQRCEKCSKPCARVCYGLGMEHLREVRAVTSANIQEFAGCKKIFGSLAFLPESFDGDPASNTAPLQPEQLQVFETLEEITGYLYISAWPDSLPDLSVFQNLQVIRGRILHNGAYSLTLQGLGISWLGLRSLRELGSGLALIHHNTHLCFVHTVPWDQLFRNPHQALLHTANRPEDECVGEGLACHQLCARGHCWGPGPTQCVNCSQFLRGQECVEECRVLQGLPREYVNARHCLPCHPECQPQNGSVTCFGPEADQCVACAHYKDPPFCVARCPSGVKPDLSYMPIWKFPDEEGACQPCPINCTHSCVDLDDKGCPAEQRASPLTSIISAVVGILLVVVLGVVFGILIKRRQQKIRKYTMRRLLQETELVEPLTPSGAMPNQAQMRILKETELRKVKVLGSGAFGTVYKGIWIPDGENVKIPVAIKVLRENTSPKANKEILDEAYVMAGVGSPYVSRLLGICLTSTVQLVTQLMPYGCLLDHVRENRGRLGSQDLLNWCMQIAKGMSYLEDVRLVHRDLAARNVLVKSPNHVKITDFGLARLLDIDETEYHADGGKVPIKWMALESILRRRFTHQSDVWSYGVTVWELMTFGAKPYDGIPAREIPDLLEKGERLPQPPICTIDVYMIMVKCWMIDSECRPRFRELVSEFSRMARDPQRFVVIQNEDLGPASPLDSTFYRSLLEDDDMGDLVDAEEYLVPQQGFFCPDPAPGAGGMVHHRHRSSSTRSGGGDLTLGLEPSEEEAPRSPLAPSEGAGSDVFDGDLGMGAAKGLQSLPTHDPSPLQRYSEDPTVPLPSETDGYVAPLTCSPQPEYVNQPDVRPQPPSPREGPLPAARPAGATLERPKTLSPGKNGVVKDVFAFGGAVENPEYLTPQGGAAPQPHPPPAFSPAFDNLYYWDQDPPERGAPPSTFKGTPTAENPEYLGLDVPV

種類予測

種類予測:

Score>80(red) has high confidence and is suggested to be used for WB detection. *The prediction model is mainly based on the alignment of immunogen sequences, the results are for reference only, not as the basis of quality assurance.

Species
Results
Score
Pig
100
Horse
100
Bovine
100
Sheep
100
Dog
100
Xenopus
100
Chicken
100
Rabbit
100
Zebrafish
89
Model Confidence:
High(score>80) Medium(80>score>50) Low(score<50) No confidence

研究背景

機能:

Protein tyrosine kinase that is part of several cell surface receptor complexes, but that apparently needs a coreceptor for ligand binding. Essential component of a neuregulin-receptor complex, although neuregulins do not interact with it alone. GP30 is a potential ligand for this receptor. Regulates outgrowth and stabilization of peripheral microtubules (MTs). Upon ERBB2 activation, the MEMO1-RHOA-DIAPH1 signaling pathway elicits the phosphorylation and thus the inhibition of GSK3B at cell membrane. This prevents the phosphorylation of APC and CLASP2, allowing its association with the cell membrane. In turn, membrane-bound APC allows the localization of MACF1 to the cell membrane, which is required for microtubule capture and stabilization.

In the nucleus is involved in transcriptional regulation. Associates with the 5'-TCAAATTC-3' sequence in the PTGS2/COX-2 promoter and activates its transcription. Implicated in transcriptional activation of CDKN1A; the function involves STAT3 and SRC. Involved in the transcription of rRNA genes by RNA Pol I and enhances protein synthesis and cell growth.

PTMs:

Autophosphorylated. Autophosphorylation occurs in trans, i.e. one subunit of the dimeric receptor phosphorylates tyrosine residues on the other subunit (Probable). Ligand-binding increases phosphorylation on tyrosine residues. Signaling via SEMA4C promotes phosphorylation at Tyr-1248. Dephosphorylated by PTPN12.

細胞の位置付け:

Cell membrane>Single-pass type I membrane protein. Early endosome. Cytoplasm>Perinuclear region. Nucleus.
Note: Translocation to the nucleus requires endocytosis, probably endosomal sorting and is mediated by importin beta-1/KPNB1. Also detected in VPS35-positive endosome-to-TGN retrograde vesicles (PubMed:31138794).

Cytoplasm. Nucleus.

Cytoplasm. Nucleus.

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionSubcellular location
組織特異性:

Expressed in a variety of tumor tissues including primary breast tumors and tumors from small bowel, esophagus, kidney and mouth.

タンパク質ファミリー:

Belongs to the protein kinase superfamily. Tyr protein kinase family. EGF receptor subfamily.

研究領域

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

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

· Cellular Processes > Cellular community - eukaryotes > Tight junction.   (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 > Calcium signaling pathway.   (View pathway)

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

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

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

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

· Human Diseases > Drug resistance: Antineoplastic > Platinum drug resistance.

· 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 > Pancreatic cancer.   (View pathway)

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

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

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

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

参考文献

1). Resistance to anti-HER2 therapy associated with the TSC2 nonsynonymous variant c.4349 C > G (p.Pro1450Arg) is reversed by CDK4/6 inhibitor in HER2-positive breast cancer. npj Breast Cancer, 2023 (PubMed: 37160904) [IF=5.9]

Application: WB    Species: Human    Sample: breast cancer

Fig. 1 Magnetic resonance imaging (MRI) reveals a clinical response to neoadjuvant therapy containing trastuzumab in a breast cancer patient with the TSC2 c.4349 C > G (p.Pro1450Arg) variant and mutant TSC2 conferring resistance to lapatinib. a Left: Breast MRI scan captured before trastuzumab treatment initiation. Right: Follow-up image captured after trastuzumab treatment initiation, showing considerable tumor enlargement after four treatment cycles. b Three groups of lentiviruses were added to the BT474 culture to validate the transfection efficacy using fluorescence microscopy. Images in b are at ×20 magnification. Scale bar for each image is 1 cm. c Expression of the FLAG tag in the TSC2-NC, TSC2-WT, and TSC2-MT groups was determined via western blotting. d Expression of EGFR and HER2 in BT474, TSC2-NC, TSC2-WT, and TSC2-MT cells was determined via western blotting. e Relative expression of EGFR and HER2 in BT474, TSC2-NC, TSC2-WT, and TSC2-MT. (f) Expression of EGFR and HER2 in TSC2-NC, TSC2-WT, and TSC2-MT cells was determined by flow cytometry. g Mean fluorescence intensity (MFI) values of EGFR and HER2 in TSC2-NC, TSC2-WT, and TSC2-MT cells. h IC50 values of lapatinib for the TSC2-NC, TSC2-WT, and TSC2-MT groups are 0.2503 μM, 0.2919 μM, and 1.416 μM, respectively. Overexpression of TSC2-MT enhanced lapatinib resistance compared with that of TSC2-WT (P 

Application: IHC    Species: Human    Sample: BT474 cell

Fig. 3 Expression of proteins involved in the HER2/AKT/mTOR and cyclinD1/CDK4 signaling pathways in BT474 cell lines treated with lapatinib and/or palbociclib. a Western blot analysis of proteins involved in the HER2/AKT/mTOR signaling pathway after treatment with lapatinib and/or palbociclib for 48 h. b Western blot analysis of proteins involved in the cyclinD1/CDK4 signaling pathway after treatment with lapatinib and/or palbociclib for 48 h. c p-HER2 expression levels under treatment with different drugs in the same cell. d p-HER2 expression levels in TSC2-NC, WT, and MT groups treated with the same drugs. e p-TSC2 expression levels under treatment with different drugs in the same cell. f p-TSC2 expression levels in TSC2-NC, WT, and MT groups treated with the same drugs. g p-mTOR expression levels under treatment with different drugs in the same cell. h p-mTOR expression levels in TSC2-NC, WT, and MT groups treated with the same drugs. i p-P70S6K expression levels under treatment with different drugs in the same cell. j p-P70S6K expression levels in TSC2-NC, WT, and MT groups treated with the same drugs. Data are shown as mean ± SD; One-way ANOVA was used to analyze the data in (d, f, h, j). Error bars are SEM.
2). Comparative Metabolomics Analysis Reveals Key Metabolic Mechanisms and Protein Biomarkers in Alzheimer’s Disease. Frontiers in Pharmacology, 2022 (PubMed: 35694256) [IF=5.6]

Application: WB    Species: Mouse    Sample: brain tissue

FIGURE 7 Experimental validation of HER2 and NDF2. (A) Immunofluorescence expression of HER2 (8.5 months). (B) Immunofluorescence expression of NDF2 (8.5 months). (C) Western blot results of NDF2 and HER2 (17 months). (D,E) Statistical analysis of immunofluorescence and western blot.

Application: IF/ICC    Species: Mouse    Sample: brain tissue

FIGURE 7 Experimental validation of HER2 and NDF2. (A) Immunofluorescence expression of HER2 (8.5 months). (B) Immunofluorescence expression of NDF2 (8.5 months). (C) Western blot results of NDF2 and HER2 (17 months). (D,E) Statistical analysis of immunofluorescence and western blot.
3). Neuregulin-1-ErbB signaling promotes microglia activation contributing to mechanical allodynia of cyclophosphamide-induced cystitis. NEUROUROLOGY AND URODYNAMICS, 2019 (PubMed: 30989724) [IF=1.8]

Application: WB    Species: rat    Sample: spinal dorsal horn

FIGURE 1| Neuregulin‐1 (Nrg1)‐ErbB signaling was upregulated in the spinal dorsal horn (SDH) of the cyclophosphamide (CYP)‐induced cystitis group. A‐C, Nrg1, p‐ErbB4, and p‐ErbB2 in the SDH of the cystitis rat model were upregulated at all three time points (days 8, 12, and 17) after the onset of CYP injection. Further, expression of Nrg1 and the p‐ErbB4/ErbB4 ratio peaked on day 12 but p‐ErbB2/ErbB2 showed no significant difference among the three time points. The data in A‐C were analyzed by one‐way analysis of variance (ANOVA) followed by the Tukey posthoc test

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