Anti-CD8 alpha 抗体 [CAL66] (ab237709)
Key features and details
- Produced recombinantly (animal-free) for high batch-to-batch consistency and long term security of supply
- Rabbit monoclonal [CAL66] to CD8 alpha
- Suitable for: ICC/IF, IP, Flow Cyt, mIHC, IHC-P
- Reacts with: Rat, Human
Related conjugates and formulations
製品の概要
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製品名
Anti-CD8 alpha antibody [CAL66]
CD8 alpha 一次抗体 製品一覧 -
製品の詳細
Rabbit monoclonal [CAL66] to CD8 alpha -
由来種
Rabbit -
アプリケーション
適用あり: ICC/IF, IP, Flow Cyt, mIHC, IHC-Pmore details
適用なし: WB -
種交差性
交差種: Rat, Human -
免疫原
Synthetic peptide. This information is proprietary to Abcam and/or its suppliers.
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ポジティブ・コントロール
- IHC-P: Human tonsil, colon and gastric carcinoma tissue; rat spleen tissue. ICC/IF: Human PBMCs. Flow cyt: Human PBMCs. IP: Human thymus lysate. mIHC: Human breast cancer tissue.
製品の特性
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製品の状態
Liquid -
保存方法
Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C long term. Avoid freeze / thaw cycle. -
バッファー
pH: 7.2
Preservative: 0.05% Sodium azide
Constituent: PBS -
Concentration information loading...
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精製度
Protein A purified -
特記事項(精製)
Purity >99% -
ポリ/モノ
モノクローナル -
クローン名
CAL66 -
アイソタイプ
IgG -
研究分野
関連製品
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Alternative Versions
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Compatible Secondaries
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Immunohistochemistry reagents
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Isotype control
アプリケーション
The Abpromise guarantee
Abpromise保証は、 次のテスト済みアプリケーションにおけるab237709の使用に適用されます
アプリケーションノートには、推奨の開始希釈率がありますが、適切な希釈率につきましてはご検討ください。
アプリケーション | Abreviews | 特記事項 |
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ICC/IF |
1/100.
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IP |
1/30.
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Flow Cyt |
1/500.
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|
mIHC |
Use at an assay dependent concentration.
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IHC-P | (2) |
Use a concentration of 0.25 µg/ml. Perform heat mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol.
Use at 1 μg/ml for rat |
特記事項 |
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ICC/IF
1/100. |
IP
1/30. |
Flow Cyt
1/500. |
mIHC
Use at an assay dependent concentration. |
IHC-P
Use a concentration of 0.25 µg/ml. Perform heat mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol. Use at 1 μg/ml for rat |
ターゲット情報
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機能
Identifies cytotoxic/suppressor T-cells that interact with MHC class I bearing targets. CD8 is thought to play a role in the process of T-cell mediated killing. CD8 alpha chains binds to class I MHC molecules alpha-3 domains. -
関連疾患
Defects in CD8A are a cause of familial CD8 deficiency (CD8 deficiency) [MIM:608957]. Familial CD8 deficiency is a novel autosomal recessive immunologic defect characterized by absence of CD8+ cells, leading to recurrent bacterial infections. -
配列類似性
Contains 1 Ig-like V-type (immunoglobulin-like) domain. -
翻訳後修飾
All of the five most carboxyl-terminal cysteines form inter-chain disulfide bonds in dimers and higher multimers, while the four N-terminal cysteines do not. -
細胞内局在
Secreted and Cell membrane. - Information by UniProt
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参照データベース
- Entrez Gene: 925 Human
- Entrez Gene: 24930 Rat
- Omim: 186910 Human
- SwissProt: P01732 Human
- SwissProt: P07725 Rat
- Unigene: 85258 Human
- Unigene: 10306 Rat
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別名
- alpha polypeptide (p32) antibody
- CD_antigen=CD8a antibody
- CD8 antibody
see all
画像
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Fluorescence multiplex immunohistochemical analysis of Human breast cancer tissue (formalin-fixed paraffin-embedded section).
Merged staining of Anti-PD-L1 (ab251611; cyan; Opal™ 520), Anti-Granzyme B (ab219803; yellow; Opal™ 540), Anti-PD1 (ab251613; magenta; Opal™ 570), Anti-pan Cytokeratin (ab264485; red; Opal™ 620), Anti-EpCAM (ab225894; red; Opal™ 620), Anti-CD8 alpha (ab251596; green; Opal™ 650) and Anti-FOXP3 (ab96048; orange; Opal™ 690). EpCAM and pan-cytokeratin share the same dye and color. Dyes are pseudo-colored for better contrast of the markers.
The immunostaining was performed on a Leica Biosystems BOND® MAX instrument with an Opal™ 6-Plex Detection Kit (NEL821001KT, Akoya Biosciences®).
The section was incubated in six rounds of staining; sequentially for ab251611 (1/750 dilution), ab219803 (1/250 dilution), ab251613 (1/750 dilution), ab264485 (0.5 µg/ml), ab225894 (1/1250 dilution), ab251596 (1/1500 dilution) and ab96048 (10 µg/ml); each using a separate fluorescent tyramide signal amplification system. EDTA based antigen retrieval (Leica Biosystems BOND® Epitope Retrieval Solution 2, pH 9.0, 20 minutes) was used in between rounds of tyramide signal amplification to remove the antibody from the previous round, to avoid any cross-reactivity. DAPI (dark blue) was used as a nuclear counter stain.
Microscopy and pseudocoloring of individual Opal™ dyes was performed using a Vectra 3 Imaging System (Akoya Biosciences®).This data is courtesy of ImmunoAtlas and it can be found here.
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Immunohistochemical analysis of paraffin-embedded human tonsil tissue labeling CD8 alpha with ab237709 at 1/2000 dilution, followed by Goat Anti-Rabbit IgG H&L (HRP) ready to use. Positive staining on the human tonsil is observed. Counter stained with hematoxylin.
Secondary antibody only control: Used PBS instead of primary antibody, secondary antibody is Goat Anti-Rabbit IgG H&L (HRP) ready to use.
Heat mediated antigen retrieval using ab93684 (Tris/EDTA buffer, pH 9.0).
-
Fluorescence multiplex immunohistochemical analysis of Human breast cancer tissue (formalin-fixed paraffin-embedded section).
Merged staining of Anti-PD-L1 (ab251611; cyan; Opal™ 520), Anti-Granzyme B (ab219803; yellow; Opal™ 540), Anti-PD1 (ab251613; magenta; Opal™ 570), Anti-pan Cytokeratin (ab264485; red; Opal™ 620), Anti-EpCAM (ab225894; red; Opal™ 620), Anti-CD8 alpha (ab251596; green; Opal™ 650) and Anti-FOXP3 (ab96048; orange; Opal™ 690). EpCAM and pan-cytokeratin share the same dye and color. Dyes are pseudo-colored for better contrast of the markers.
The immunostaining was performed on a Leica Biosystems BOND® MAX instrument with an Opal™ 6-Plex Detection Kit (NEL821001KT, Akoya Biosciences®).
The section was incubated in six rounds of staining; sequentially for ab251611 (1/750 dilution), ab219803 (1/250 dilution), ab251613 (1/750 dilution), ab264485 (0.5 µg/ml), ab225894 (1/1250 dilution), ab251596 (1/1500 dilution) and ab96048 (10 µg/ml); each using a separate fluorescent tyramide signal amplification system. EDTA based antigen retrieval (Leica Biosystems BOND® Epitope Retrieval Solution 2, pH 9.0, 20 minutes) was used in between rounds of tyramide signal amplification to remove the antibody from the previous round, to avoid any cross-reactivity. DAPI (dark blue) was used as a nuclear counter stain.
Microscopy and pseudocoloring of individual Opal™ dyes was performed using a Vectra 3 Imaging System (Akoya Biosciences®).This data is courtesy of ImmunoAtlas and it can be found here.
-
Fluorescence multiplex immunohistochemical analysis of Human breast cancer tissue (formalin-fixed paraffin-embedded section).
Merged staining of Anti-PD-L1 (ab251611; cyan; Opal™ 520), Anti-Granzyme B (ab219803; yellow; Opal™ 540), Anti-PD1 (ab251613; magenta; Opal™ 570), Anti-pan Cytokeratin (ab264485; red; Opal™ 620), Anti-EpCAM (ab225894; red; Opal™ 620), Anti-CD8 alpha (ab251596; green; Opal™ 650) and Anti-FOXP3 (ab96048; orange; Opal™ 690). EpCAM and pan-cytokeratin share the same dye and color. Dyes are pseudo-colored for better contrast of the markers.
The immunostaining was performed on a Leica Biosystems BOND® MAX instrument with an Opal™ 6-Plex Detection Kit (NEL821001KT, Akoya Biosciences®).
The section was incubated in six rounds of staining; sequentially for ab251611 (1/750 dilution), ab219803 (1/250 dilution), ab251613 (1/750 dilution), ab264485 (0.5 µg/ml), ab225894 (1/1250 dilution), ab251596 (1/1500 dilution) and ab96048 (10 µg/ml); each using a separate fluorescent tyramide signal amplification system. EDTA based antigen retrieval (Leica Biosystems BOND® Epitope Retrieval Solution 2, pH 9.0, 20 minutes) was used in between rounds of tyramide signal amplification to remove the antibody from the previous round, to avoid any cross-reactivity. DAPI (dark blue) was used as a nuclear counter stain.
Microscopy and pseudocoloring of individual Opal™ dyes was performed using a Vectra 3 Imaging System (Akoya Biosciences®).This data is courtesy of ImmunoAtlas and it can be found here.
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CD8 alpha was immunoprecipitated from 0.35 mg of human thymus lysate with ab237709 at 1/30 dilution. Western blot was performed from the immunoprecipitate using ab237709 at 1/1000 dilution. VeriBlot for IP Detection Reagent (HRP) (ab131366), was used as secondary antibody at 1/5000 dilution.
Lane 1: Human thymus lysate 10 μg (Input).
Lane 2: ab237709 IP in human thymus lysate.
Lane 3: Rabbit monoclonal IgG (ab172730) instead of ab237709 in human thymus lysate.Blocking and dilution buffer and concentration: 5% NFDM/TBST.
Exposure time: 100 seconds. -
Fluorescence multiplex immunohistochemical analysis of Human breast cancer tissue (formalin-fixed paraffin-embedded section).
Merged staining of Anti-PD-L1 (ab251611; cyan; Opal™ 520), Anti-Granzyme B (ab219803; yellow; Opal™ 540), Anti-PD1 (ab251613; magenta; Opal™ 570), Anti-pan Cytokeratin (ab264485; red; Opal™ 620), Anti-EpCAM (ab225894; red; Opal™ 620), Anti-CD8 alpha (ab251596; green; Opal™ 650) and Anti-FOXP3 (ab96048; orange; Opal™ 690). EpCAM and pan-cytokeratin share the same dye and color. Dyes are pseudo-colored for better contrast of the markers.
The immunostaining was performed on a Leica Biosystems BOND® MAX instrument with an Opal™ 6-Plex Detection Kit (NEL821001KT, Akoya Biosciences®).
The section was incubated in six rounds of staining; sequentially for ab251611 (1/750 dilution), ab219803 (1/250 dilution), ab251613 (1/750 dilution), ab264485 (0.5 µg/ml), ab225894 (1/1250 dilution), ab251596 (1/1500 dilution) and ab96048 (10 µg/ml); each using a separate fluorescent tyramide signal amplification system. EDTA based antigen retrieval (Leica Biosystems BOND® Epitope Retrieval Solution 2, pH 9.0, 20 minutes) was used in between rounds of tyramide signal amplification to remove the antibody from the previous round, to avoid any cross-reactivity. DAPI (dark blue) was used as a nuclear counter stain.
Microscopy and pseudocoloring of individual Opal™ dyes was performed using a Vectra 3 Imaging System (Akoya Biosciences®).This data is courtesy of ImmunoAtlas and it can be found here.
-
Fluorescence multiplex immunohistochemical analysis of Human breast cancer tissue (formalin-fixed paraffin-embedded section).
Merged staining of Anti-PD-L1 (ab251611; cyan; Opal™ 520), Anti-Granzyme B (ab219803; yellow; Opal™ 540), Anti-PD1 (ab251613; magenta; Opal™ 570), Anti-pan Cytokeratin (ab264485; red; Opal™ 620), Anti-EpCAM (ab225894; red; Opal™ 620), Anti-CD8 alpha (ab251596; green; Opal™ 650) and Anti-FOXP3 (ab96048; orange; Opal™ 690). EpCAM and pan-cytokeratin share the same dye and color. Dyes are pseudo-colored for better contrast of the markers.
The immunostaining was performed on a Leica Biosystems BOND® MAX instrument with an Opal™ 6-Plex Detection Kit (NEL821001KT, Akoya Biosciences®).
The section was incubated in six rounds of staining; sequentially for ab251611 (1/750 dilution), ab219803 (1/250 dilution), ab251613 (1/750 dilution), ab264485 (0.5 µg/ml), ab225894 (1/1250 dilution), ab251596 (1/1500 dilution) and ab96048 (10 µg/ml); each using a separate fluorescent tyramide signal amplification system. EDTA based antigen retrieval (Leica Biosystems BOND® Epitope Retrieval Solution 2, pH 9.0, 20 minutes) was used in between rounds of tyramide signal amplification to remove the antibody from the previous round, to avoid any cross-reactivity. DAPI (dark blue) was used as a nuclear counter stain.
Microscopy and pseudocoloring of individual Opal™ dyes was performed using a Vectra 3 Imaging System (Akoya Biosciences®).This data is courtesy of ImmunoAtlas and it can be found here.
-
Immunohistochemical analysis of paraffin-embedded human colon tissue labeling CD8 alpha with ab237709 at 1/2000 dilution, followed by Goat Anti-Rabbit IgG H&L (HRP) ready to use. Positive staining on the T lymphocytes in human colon is observed. Counter stained with hematoxylin.
Secondary antibody only control: Used PBS instead of primary antibody, secondary antibody is Goat Anti-Rabbit IgG H&L (HRP) ready to use.
Heat mediated antigen retrieval using ab93684 (Tris/EDTA buffer, pH 9.0).
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Immunohistochemical analysis of paraffin-embedded human gastric carcinoma tissue labeling CD8 alpha with ab237709 at 1/2000 dilution, followed by Goat Anti-Rabbit IgG H&L (HRP) ready to use. Positive staining on the T lymphocytes in human gastric carcinoma is observed. Counter stained with hematoxylin.
Secondary antibody only control: Used PBS instead of primary antibody, secondary antibody is Goat Anti-Rabbit IgG H&L (HRP) ready to use.
Heat mediated antigen retrieval using ab93684 (Tris/EDTA buffer, pH 9.0).
-
Immunohistochemical analysis of paraffin-embedded rat spleen tissue labeling CD8 alpha with ab237709 at 1/500 dilution, followed by Goat Anti-Rabbit IgG H&L (HRP) ready to use. Positive staining on the rat spleen is observed. Counter stained with hematoxylin.
Secondary antibody only control: Used PBS instead of primary antibody, secondary antibody is Goat Anti-Rabbit IgG H&L (HRP) ready to use.
Heat mediated antigen retrieval using ab93684 (Tris/EDTA buffer, pH 9.0).
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Immunofluorescent analysis of 4% paraformaldehyde-fixed, 0.1% Triton X-100 permeabilized human PBMC (peripheral blood mononuclear cells) labeling CD8 alpha with ab237709 at 1/100 dilution, followed by Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) (ab150077) secondary antibody at 1/1000 dilution (green). Confocal image showing membranous staining in subsets of human PBMC. The nuclear counter stain is DAPI (blue). CD3 is detected with an anti-CD3 antibody-Alexa Fluor® 647 comjugate at 1/200 dilution (red).
Secondary antibody only control: Used PBS instead of primary antibody, followed by Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) (ab150077) secondary antibody at 1/1000 dilution.
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Flow cytometric analysis of 2% paraformaldehyde-fixed, 0.1% Tween 20 permeacblized human PBMC (peripheral blood mononuclear cells) labeling CD8 alpha with ab237709 at 1/500 dilution (Right) compared with a Recombinant Rabbit IgG, monoclonal [EPR25A] - Isotype Control (ab172730) (Left).
Goat Anti-Rabbit IgG Fc (Alexa Fluor® 488) preadsorbed (ab150097), at 1/5000 dilution was used as the secondary antibody.
Cells were surface stained with anti-CD8 alpha conjugated to BV421.The fixed with 2% PFA for 10min followed by intracellularly stained with rabbit IgG (Left) or ab237709 (Right). They recognize same populations.
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Formalin-fixed, paraffin-embedded human tonsil tissue stained for CD8 alpha using ab237709 at 0.25 µg/ml in immunohistochemical analysis.
プロトコール
To our knowledge, customised protocols are not required for this product. Please try the standard protocols listed below and let us know how you get on.
データシートおよび資料
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SDS download
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Datasheet download
参考文献 (43)
ab237709 は 43 報の論文で使用されています。
- Qiao T et al. Combined pembrolizumab and bevacizumab therapy effectively inhibits non-small-cell lung cancer growth and prevents postoperative recurrence and metastasis in humanized mouse model. Cancer Immunol Immunother 72:1169-1181 (2023). PubMed: 36357599
- Cai Z et al. BCAT2 Shapes a Noninflamed Tumor Microenvironment and Induces Resistance to Anti-PD-1/PD-L1 Immunotherapy by Negatively Regulating Proinflammatory Chemokines and Anticancer Immunity. Adv Sci (Weinh) 10:e2207155 (2023). PubMed: 36642843
- Cui B et al. Dendritic cells originating exosomal miR-193b-3p induces regulatory T cells to alleviate liver transplant rejection. Int Immunopharmacol 114:109541 (2023). PubMed: 36700764
- Gao L et al. Identification and validation of pyroptosis-related gene landscape in prognosis and immunotherapy of ovarian cancer. J Ovarian Res 16:27 (2023). PubMed: 36707884
- Zhao X et al. Adult spinal cord tissue transplantation combined with local tacrolimus sustained-release collagen hydrogel promotes complete spinal cord injury repair. Cell Prolif 56:e13451 (2023). PubMed: 36916024