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AB19878

Anti-STELLAR 抗体

Anti-STELLAR antibody

4

(7 Reviews)

|

(42 Publications)

Rabbit Polyclonal STELLAR antibody. Suitable for ICC/IF, IHC-Fr and reacts with Mouse samples. Cited in 42 publications.

別名を表示する

Cap1p, Crg1, Pgc7, Dppa3, Developmental pluripotency-associated protein 3, Compaction-associated protein 1, Primordial germ cell protein 7, Stella

6 Images
Immunohistochemistry (Frozen sections) - Anti-STELLAR antibody (AB19878)
  • IHC-Fr

Characteriser

Immunohistochemistry (Frozen sections) - Anti-STELLAR antibody (AB19878)

The image shows ab19878 staining of a crysosection of mouse embryonic genital ridges (E14.5). The samples were fixed overnight in 4% paraformaldehyde, permeabilised with 0.1% Triton and stained overnight at 4 degrees. 4μg/ml of antibody was used. Staining was in the nucleus and cytoplasm of Oct4-positive cells. The blue fluorescence is DAPI staining of DNA.

This image is courtesy of Petra Hajkova, University of Cambridge

Immunocytochemistry/ Immunofluorescence - Anti-STELLAR antibody (AB19878)
  • ICC/IF

Unknown

Immunocytochemistry/ Immunofluorescence - Anti-STELLAR antibody (AB19878)

ICC/IF image of ab19878 stained mouse embryonic stem cells. The cells were 4% formaldehyde fixed (10 min) and then incubated in 1%BSA / 10% normal goat serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab19878, 5µg/ml) overnight at +4°C. The secondary antibody (green) was ab96899, DyLight® 488 goat anti-rabbit IgG (H+L) used at a 1/250 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM.

Immunocytochemistry/ Immunofluorescence - Anti-STELLAR antibody (AB19878)
  • ICC/IF

Lab

Immunocytochemistry/ Immunofluorescence - Anti-STELLAR antibody (AB19878)

ab19878 staining STELLAR in mES cells. The cells were fixed with 100% methanol (5 min), permeabilized with 0.1% PBS-Triton X-100 for 5 minutes and then blocked with 1% BSA/10% normal goat serum/0.3M glycine in 0.1%PBS-Tween for 1h. The cells were then incubated overnight at 4°C with ab19878 at 5µg/ml and ab7291, Mouse monoclonal [DM1A] to alpha Tubulin - Loading Control. Cells were then incubated with ab150081, Goat polyclonal Secondary Antibody to Rabbit IgG - H&L (Alexa Fluor® 488), pre-adsorbed at 1/1000 dilution (shown in green) and ab150120, Goat polyclonal Secondary Antibody to Mouse IgG - H&L (Alexa Fluor® 594), pre-adsorbed at 1/1000 dilution (shown in pseudocolour magenta). Nuclear DNA was labelled with DAPI (shown in blue).

Image was acquired with a high-content analyser (Operetta CLS, Perkin Elmer) and a maximum intensity projection of confocal sections is shown.

Immunocytochemistry/ Immunofluorescence - Anti-STELLAR antibody (AB19878)
  • ICC/IF

CiteAb

Immunocytochemistry/ Immunofluorescence - Anti-STELLAR antibody (AB19878)

Immunocytochemistry-immunofluorescence using Anti-STELLAR antibody, ab19878. Publication image from Kim, Y. et al., 2020, Nat Commun, 32332736. Legend direct from paper.

PGCs show rapid non-canonical Hh signalling responses.a Immunofluorescence of Smo, p-Creb, Gli3 and p-Src, co-stained with germ cell marker Stella in GR primary culture cells with or without Shh treatment for 10 min. Representative images from at least three biologically independent experiments are shown. Scale bar, 10 µm. b The relative fluorescence intensity values of Smo, p-Creb, Gli3 and p-Src, normalised to the signal intensity of Stella observed in PGCs were compared with or without Shh treatment. Unpaired t-test with Welch’s correction indicates a significant increase in Smo (DMF (n = 14), Shh (n = 13), ****P < 0.0001), p-Creb (DMF (n = 9), Shh (n = 7), ****P < 0.0001) and p-Src (DMF (n = 10), Shh (n = 11), ****P < 0.0001) but no significant change in Gli3 (DMF (n = 9), Shh (n = 9), P = 0.8542). Error bars represent SD. Unpaired t-test with Welch’s correction. Source data are provided as a Source Data file.

Immunocytochemistry/ Immunofluorescence - Anti-STELLAR antibody (AB19878)
  • ICC/IF

CiteAb

Immunocytochemistry/ Immunofluorescence - Anti-STELLAR antibody (AB19878)

Immunocytochemistry-immunofluorescence using Anti-STELLAR antibody, ab19878. Publication image from Kim, Y. et al., 2020, Nat Commun, 32332736. Legend direct from paper.

PGCs are naturally unciliated but still responsive to Hh signalling.a Primary cultures of GR were treated with DMF or Pur for 18 h and analysed by immunofluorescence staining for Smo and Gli3. The positive and negative staining for Stella, a germ cell marker, distinguished PGCs and somatic cells, respectively. The merged images are shown without Stella signal for improved clarity. Representative images from three biologically independent experiments are shown. Scale bar, 10 µm. b Dot plots showing the relative fluorescence intensity values of Smo and Gli3 signal observed in PGCs treated with DMF or Pur, which were normalised to the fluorescence intensity values of Stella in each cell. Unpaired t-test with Welch’s correction indicates a significant increase in Smo (DMF (n = 9), Pur (n = 31), P < 0.0001) and Gli3 (DMF (n = 18), Pur (n = 20), P < 0.0001). c Cilia staining of primary cultures of dissected E10.5 mouse GR tissues. Arl13b and acetylated tubulin are used for axoneme staining and gamma-tubulin and CEP164 are used for basal body staining. SSEA1 and Stella are used as germ cell markers. Representative images from three independent experiments are shown. Scale bar, 10 µm. d Ciliation frequency of the PGCs (n = 158) and the somatic cells (n = 971) observed from GR cultures. Error bars represent SD of three independent experiments. Each data point represents one experiment. Unpaired t-test, two-tailed (****P < 0.0001). Source data are provided as a Source Data file.

Immunocytochemistry/ Immunofluorescence - Anti-STELLAR antibody (AB19878)
  • ICC/IF

CiteAb

Immunocytochemistry/ Immunofluorescence - Anti-STELLAR antibody (AB19878)

Immunocytochemistry-immunofluorescence using Anti-STELLAR antibody, ab19878. Publication image from Kim, Y. et al., 2020, Nat Commun, 32332736. Legend direct from paper.

PGCs are naturally unciliated but still responsive to Hh signalling.a Primary cultures of GR were treated with DMF or Pur for 18 h and analysed by immunofluorescence staining for Smo and Gli3. The positive and negative staining for Stella, a germ cell marker, distinguished PGCs and somatic cells, respectively. The merged images are shown without Stella signal for improved clarity. Representative images from three biologically independent experiments are shown. Scale bar, 10 µm. b Dot plots showing the relative fluorescence intensity values of Smo and Gli3 signal observed in PGCs treated with DMF or Pur, which were normalised to the fluorescence intensity values of Stella in each cell. Unpaired t-test with Welch’s correction indicates a significant increase in Smo (DMF (n = 9), Pur (n = 31), P < 0.0001) and Gli3 (DMF (n = 18), Pur (n = 20), P < 0.0001). c Cilia staining of primary cultures of dissected E10.5 mouse GR tissues. Arl13b and acetylated tubulin are used for axoneme staining and gamma-tubulin and CEP164 are used for basal body staining. SSEA1 and Stella are used as germ cell markers. Representative images from three independent experiments are shown. Scale bar, 10 µm. d Ciliation frequency of the PGCs (n = 158) and the somatic cells (n = 971) observed from GR cultures. Error bars represent SD of three independent experiments. Each data point represents one experiment. Unpaired t-test, two-tailed (****P < 0.0001). Source data are provided as a Source Data file.

Key facts

宿主種

Rabbit

クローン性

Polyclonal

アイソタイプ

IgG

キャリアフリー

No

交差種

Mouse

アプリケーション

ICC/IF, IHC-Fr

applications

免疫原

The exact immunogen used to generate this antibody is proprietary information.

特異性

<p>From November 2024, QC testing of replenishment batches of this polyclonal changed. All tested and expected application and reactive species combinations are still covered by our Abcam product promise. However, we no longer test all applications. For more information on a specific batch, please contact our Scientific Support who will be happy to help.</p>

Reactivity data

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出荷温度及び保存条件

製品の状態
Liquid
精製方法
Affinity purification Immunogen
バッファー組成
pH: 7.4 Preservative: 0.02% Sodium azide Constituents: PBS, 1% BSA
出荷温度
Blue Ice
短期保存期間
1-2 weeks
短期保存温度
+4°C
長期保存温度
-20°C
分注に関する情報
Upon delivery aliquot
保管に関する情報
Avoid freeze / thaw cycle

補足情報

This supplementary information is collated from multiple sources and compiled automatically.

STELLAR also known as 'STELLA' or 'DPPA2' acts mechanically as a regulator of pluripotency and early embryonic development. It weighs approximately 17 kDa. This protein expresses itself in pluripotent stem cells and germ cells. Researchers have found subcellular localization of STELLAR mainly in the nucleus suggesting critical functions in gene regulation during cell differentiation.
Biological function summary

The protein plays an important role in maintaining cell totipotency and germ cell specification. STELLAR interacts with several cellular complexes that are pivotal during embryogenesis. By regulating specific genes STELLAR contributes to the repression of inappropriate gene expression in pluripotent cells impacting cellular fate outcomes during development.

Pathways

STELLAR participates in the pluripotency regulatory network involving significant pathways like the Wnt signaling pathway. This protein's regulatory mechanisms align with other transcription factors such as NANOG and OCT4 highlighting its role in the maintenance of the pluripotent state. The interplay among these factors establishes a complex circuit essential for the retention of stem cell properties.

Aberrant expression or regulation of STELLAR associates with certain cancers. Its connection to disorders like germ cell tumors suggests an oncogenic potential when dysregulated. Moreover STELLAR's interaction with proteins such as LIN28 highlights its involvement in tumorigenic processes shedding light on its significance in both normal development and pathological states.

製品プロトコール

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ターゲットの情報

Primordial germ cell (PGCs)-specific protein involved in epigenetic chromatin reprogramming in the zygote following fertilization. In zygotes, DNA demethylation occurs selectively in the paternal pronucleus before the first cell division, while the adjacent maternal pronucleus and certain paternally-imprinted loci are protected from this process. Participates in protection of DNA methylation in the maternal pronucleus by preventing conversion of 5mC to 5hmC : specifically recognizes and binds histone H3 dimethylated at 'Lys-9' (H3K9me2) on maternal genome, and protects maternal genome from TET3-mediated conversion to 5hmC and subsequent DNA demethylation. Does not bind paternal chromatin, which is mainly packed into protamine and does not contain much H3K9me2 mark. Also protects imprinted loci that are marked with H3K9me2 in mature sperm from DNA demethylation in early embryogenesis. May be important for the totipotent/pluripotent states continuing through preimplantation development. Also involved in chromatin condensation in oocytogenesis.
See full target information Dppa3

文献 (42)

Recent publications for all applications. Explore the full list and refine your search

Advanced science (Weinheim, Baden-Wurttemberg, Germany) 12:e2410098 PubMed39629971

2024

Spatial Transcriptome and Single Nucleus Transcriptome Sequencing Reveals Tetrahydroxy Stilbene Glucoside Promotes Ovarian Organoids Development Through the Vegfa-Ephb2 Pair.

Applications

Unspecified application

Species

Unspecified reactive species

Chunlan Mu,Xiaoyong Li,Jiamei Yang,Geng G Tian,Hepeng Bai,Wenhui Lin,Linhui Wang,Ji Wu

The EMBO journal 42:e113955 PubMed37850882

2023

Epigenetic regulation limits competence of pluripotent stem cell-derived oocytes.

Applications

Unspecified application

Species

Unspecified reactive species

Eishi Aizawa,Evgeniy A Ozonov,Yumiko K Kawamura,Charles-Etienne Dumeau,So Nagaoka,Tomoya S Kitajima,Mitinori Saitou,Antoine Hfm Peters,Anton Wutz

Scientific reports 13:12309 PubMed37516749

2023

Coordination of canonical and noncanonical Hedgehog signalling pathways mediated by WDR11 during primordial germ cell development.

Applications

Unspecified application

Species

Unspecified reactive species

Jiyoung Lee,Yeonjoo Kim,Paris Ataliotis,Hyung-Goo Kim,Dae-Won Kim,Dorothy C Bennett,Nigel A Brown,Lawrence C Layman,Soo-Hyun Kim

Methods in molecular biology (Clifton, N.J.) 2677:269-280 PubMed37464248

2023

Derivation and Primordial Germ Cell Induction of Intermediate Pluripotent Stem Cells.

Applications

Unspecified application

Species

Unspecified reactive species

Leqian Yu,Emily Ballard,Carlos A Pinzon Arteaga,Jun Wu

Protein & cell 14:477-496 PubMed36921016

2023

The chemical reprogramming of unipotent adult germ cells towards authentic pluripotency and de novo establishment of imprinting.

Applications

Unspecified application

Species

Unspecified reactive species

Yuhan Chen,Jiansen Lu,Yanwen Xu,Yaping Huang,Dazhuang Wang,Peiling Liang,Shaofang Ren,Xuesong Hu,Yewen Qin,Wei Ke,Ralf Jauch,Andrew Paul Hutchins,Mei Wang,Fuchou Tang,Xiao-Yang Zhao

International journal of molecular sciences 24: PubMed36834503

2023

PGC7 Regulates Genome-Wide DNA Methylation by Regulating ERK-Mediated Subcellular Localization of DNMT1.

Applications

Unspecified application

Species

Unspecified reactive species

Xing Wei,Yingxiang Liu,Weijie Hao,Peiwen Feng,Lei Zhang,Hongni Xue,Qunli Zhou,Zekun Guo

Animals : an open access journal from MDPI 13: PubMed36670859

2023

Comparative Analysis of the Potential for Germ Cell (GC) Differentiation of Bovine Peripheral Blood Derived-Mesenchymal Stem Cells (PB-MSC) and Spermatogonial Stem Cells (SSC) in Co-Culture System with Sertoli Cells (SC).

Applications

Unspecified application

Species

Unspecified reactive species

Moisés N Segunda,Carlos Díaz,Cristian G Torres,Víctor H Parraguez,Mónica De Los Reyes,Oscar A Peralta

Nature cell biology 24:1141-1153 PubMed35787683

2022

Z-DNA is remodelled by ZBTB43 in prospermatogonia to safeguard the germline genome and epigenome.

Applications

Unspecified application

Species

Unspecified reactive species

Yingying Meng,Guliang Wang,Hongjuan He,Kin H Lau,Allison Hurt,Brianna J Bixler,Andrea Parham,Seung-Gi Jin,Xingzhi Xu,Karen M Vasquez,Gerd P Pfeifer,Piroska E Szabó

Frontiers in cell and developmental biology 10:882671 PubMed35721479

2022

Maternal Factor Dppa3 Activates 2C-Like Genes and Depresses DNA Methylation in Mouse Embryonic Stem Cells.

Applications

Unspecified application

Species

Unspecified reactive species

Chuanyu Zhang,Hang Wen,Siying Liu,Enze Fu,Lu Yu,Shang Chen,Qingsheng Han,Zongjin Li,Na Liu

Methods in molecular biology (Clifton, N.J.) 2490:213-233 PubMed35486249

2022

In Vitro Differentiation of Murine Embryonic Stem Cells (ESCs) into Primordial Germ Cell-like Cells (PGCLCs).

Applications

Unspecified application

Species

Unspecified reactive species

Han-Pin Pui,Qiaolin Deng
View all publications

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