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AB227691

Anti-TROP2 antibody [SP295]

  • 20ul selling size
  • BOND RX™ Validated
  • KO Validated
  • RabMAb
  • Recombinant
  • What is this?

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(4 Publications)

Anti-TROP2 antibody [SP295] (ab227691) is a rabbit monoclonal antibody detecting TROP2 in Western Blot, IHC-P. Suitable for Human.

- KO validated for confirmed specificity
- Biophysical QC for unrivalled batch-batch consistency

View Alternative Names

GA733-1, M1S1, TROP2, TACSTD2, Tumor-associated calcium signal transducer 2, Cell surface glycoprotein Trop-2, Membrane component chromosome 1 surface marker 1, Pancreatic carcinoma marker protein GA733-1

15 Images
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-TROP2 antibody [SP295] (AB227691)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-TROP2 antibody [SP295] (AB227691)

Formalin-fixed, paraffin-embedded human skin tissue stained for TROP2 using ab227691 at a 1/100 dilution in immunohistochemical analysis.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-TROP2 antibody [SP295] (AB227691)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-TROP2 antibody [SP295] (AB227691)

Formalin-fixed, paraffin-embedded human bladder transitional cell carcinoma tissue stained for TROP2 using ab227691 at a 1/100 dilution in immunohistochemical analysis.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-TROP2 antibody [SP295] (AB227691)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-TROP2 antibody [SP295] (AB227691)

Formalin-fixed, paraffin-embedded human bladder tissue stained for TROP2 using ab227691 at a 1/100 dilution in immunohistochemical analysis.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-TROP2 antibody [SP295] (AB227691)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-TROP2 antibody [SP295] (AB227691)

Formalin-fixed, paraffin-embedded human tonsil tissue stained for TROP2 using ab227691 at a 1/100 dilution in immunohistochemical analysis.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-TROP2 antibody [SP295] (AB227691)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-TROP2 antibody [SP295] (AB227691)

Formalin-fixed, paraffin-embedded human lung squamous cell carcinoma tissue stained for TROP2 using ab227691 at a 1/100 dilution in immunohistochemical analysis.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-TROP2 antibody [SP295] (AB227691)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-TROP2 antibody [SP295] (AB227691)

Formalin-fixed, paraffin-embedded human prostate adenocarcinoma tissue stained for TROP2 using ab227691 at a 1/100 dilution in immunohistochemical analysis.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-TROP2 antibody [SP295] (AB227691)
  • IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-TROP2 antibody [SP295] (AB227691)

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of Human bladder carcinoma tissue sections labeling TROP2 with ab227691 at 1/100 dilution (1.01 μg/ml). Heat mediated antigen retrieval with Bond™ Epitope Retrieval Solution 2 (pH 9.0) for 10mins. Rabbit specific IHC polymer detection kit HRP/DAB was used as the secondary antibody. Hematoxylin was used as a counterstain. Membranous staining on the human bladder carcinoma, performed on a Leica Biosystems BOND™ RX instrument.
The section was incubated with ab228199 for 10 mins at room temperature.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-TROP2 antibody [SP295] (AB227691)
  • IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-TROP2 antibody [SP295] (AB227691)

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of Human skin tissue sections labeling TROP2 with ab227691 at 1 : 100 dilution (1.01 μg/ml). Heat mediated antigen retrieval with Bond™ Epitope Retrieval Solution 2 (pH 9.0) for 10mins. Rabbit specific IHC polymer detection kit HRP/DAB was used as the secondary antibody. Hematoxylin was used as a counterstain. Membranous staining on the human skin, performed on a Leica Biosystems BOND™ RX instrument.
The section was incubated with ab228199 for 10 mins at room temperature.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-TROP2 antibody [SP295] (AB227691)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-TROP2 antibody [SP295] (AB227691)

Formalin-fixed, paraffin-embedded human prostate tissue stained for TROP2 using ab227691 at a 1/100 dilution in immunohistochemical analysis.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-TROP2 antibody [SP295] (AB227691)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-TROP2 antibody [SP295] (AB227691)

Formalin-fixed, paraffin-embedded human skin squamous cell carcinoma tissue stained for TROP2 using ab227691 at a 1/100 dilution in immunohistochemical analysis.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-TROP2 antibody [SP295] (AB227691)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-TROP2 antibody [SP295] (AB227691)

Formalin-fixed, paraffin-embedded human pancreas tissue stained for TROP2 using ab227691 at a 1/100 dilution in immunohistochemical analysis.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-TROP2 antibody [SP295] (AB227691)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-TROP2 antibody [SP295] (AB227691)

Formalin-fixed, paraffin-embedded human breast ductal cell carcinoma tissue stained for TROP2 using ab227691 at a 1/100 dilution in immunohistochemical analysis.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-TROP2 antibody [SP295] (AB227691)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-TROP2 antibody [SP295] (AB227691)

Formalin-fixed, paraffin-embedded human breast tissue stained for TROP2 using ab227691 at a 1/100 dilution in immunohistochemical analysis.

Western blot - Anti-TROP2 antibody [SP295] (AB227691)
  • WB

Lab

Western blot - Anti-TROP2 antibody [SP295] (AB227691)

Western blot : Anti-TACSTD2 antibody [SP295] (ab227691) staining at 1/1000 dilution, shown in green; Mouse anti-CANX [CANX/1543] (ab238078) loading control staining at 1/20000 dilution, shown in magenta. In Western blot, ab227691 was shown to bind specifically to TACSTD2. A band was observed at 38-50 kDa in wild-type MCF7 cell lysates with no signal observed at this size in TACSTD2 knockout cell line. To generate this image, wild-type and TACSTD2 knockout MCF7 cell lysates were analysed. First, samples were run on an SDS-PAGE gel then transferred onto a nitrocellulose membrane. Membranes were blocked in 3 % milk in TBS-0.1 % Tween® 20 (TBS-T) before incubation with primary antibodies overnight at 4 °C. Blots were washed four times in TBS-T, incubated with secondary antibodies for 1 h at room temperature, washed again four times then imaged. Secondary antibodies used were Goat anti-Rabbit IgG H&L 800CW and Goat anti-Mouse IgG H&L 680RD at 1/20000 dilution.

All lanes:

Western blot - Anti-TROP2 antibody [SP295] (ab227691) at 1/1000 dilution

Lane 1:

Wild-type MCF7 cell lysate at 20 µg

Lane 2:

TACSTD2 knockout MCF7 cell lysate at 20 µg

Lane 3:

HCT 116 cell lysate at 20 µg

Lane 4:

HeLa cell lysate at 20 µg

Secondary

All lanes:

Goat anti-Rabbit IgG H&L 800CW and Goat anti-Mouse IgG H&L 680RD at 1/20000 dilution

Observed band size: 38 kDa,50 kDa

false

Western blot - Anti-TROP2 antibody [SP295] (AB227691)
  • WB

Supplier Data

Western blot - Anti-TROP2 antibody [SP295] (AB227691)

This blot was developed using a higher sensitivity ECL substrate.

Blocking buffer and concentration : 5% NFDM/TBST

Diluting buffer and concentration : 5% NFDM/TBST

All lanes:

Western blot - Anti-TROP2 antibody [SP295] (ab227691) at 1/1000 dilution

All lanes:

MCF7 (human breast adenocarcinoma epithelial cell) whole cell lysate at 20 µg

Secondary

All lanes:

Western blot - Goat Anti-Rabbit IgG H&L (HRP) (<a href='/en-us/products/secondary-antibodies/goat-rabbit-igg-h-l-hrp-ab97051'>ab97051</a>) at 1/100000 dilution

Predicted band size: 36 kDa

Observed band size: 37-50 kDa

true

Exposure time: 48s

Key facts

Host species

Rabbit

Clonality

Monoclonal

Clone number

SP295

Isotype

IgG

Carrier free

No

Reacts with

Human

Applications

IHC-P, WB

applications

Immunogen

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

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "WB" : {"fullname" : "Western blot", "shortname":"WB"}, "IHCP" : {"fullname" : "Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)", "shortname":"IHC-P"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "1/1000", "WB-species-notes": "<p></p>", "IHCP-species-checked": "testedAndGuaranteed", "IHCP-species-dilution-info": "1/100", "IHCP-species-notes": "<p>Boil tissue section in EDTA buffer, pH 8.0 for 10 minutes followed by cooling at room temperature for 20 minutes. Primary incubation for 10 minutes at room temperature.</p>" }, "Mouse": { "WB-species-checked": "notRecommended", "WB-species-dilution-info": "1/1000", "WB-species-notes": "<p></p>", "IHCP-species-checked": "predicted", "IHCP-species-dilution-info": "", "IHCP-species-notes": "" } } }

Product details

What is this antibody validated in?
Anti-TROP2 antibody [SP295] (ab227691) is a rabbit recombinant monoclonal antibody and is validated for use in Western Blot (WB), Immunohistochemistry (IHC-P) in Human samples.

What is the molecular weight of TROP2?
Anti-TROP2 [SP295] (ab227691) specifically detects a band for TROP2 (UniProt: P09758) at a molecular weight of 36kDa.

Collaboration
Anti-TROP2 [SP295] (ab227691) is a clone from the portfolio of Spring Bioscience (Roche) SP clones which have been optimised for immunohistochemistry (IHC).

Specificity confirmed
The specificity of Anti-TROP2 antibody [SP295] (ab227691) has been confirmed by Western blot testing in TACSTD2 Knockout MCF7 cells.

Other related products
We have a range of other formats of antibody clone [SP295] also available for your convenience: ab227691, Carrier free - ab238791, Alexa Fluor® 488 - ab311046, Alexa Fluor® 647 - ab311171, Alexa Fluor® 594 - ab311826, Alexa Fluor® 568 - ab313109, Alexa Fluor® 555 - ab313302, Alexa Fluor® 750 - ab321455

Properties and storage information

Form
Liquid
Purification technique
Affinity purification Protein A/G
Purification notes
Purified from TCS by protein A/G.
Storage buffer
pH: 7.2 - 7.4 Preservative: 0.1% Sodium azide Constituents: PBS, 1% BSA
Shipped at conditions
Conditional Ambient
Appropriate short-term storage duration
1-2 weeks
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle

Supplementary information

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

TROP2 also known as TACSTD2 or tumor-associated calcium signal transducer 2 is a single-pass type I membrane glycoprotein. This protein is about 35 kDa in mass and primarily expresses in epithelial tissues. It acts as a transmembrane receptor that plays a role in signal transduction due to its domain structure binding and activation processes on the cell surface. TROP2 exhibits high expression in several types of tumors making it a potential target for therapeutic antibodies like anti-TROP2 anti trop2 or anti-TROP-2.
Biological function summary

TROP2 mediates calcium signaling and cell proliferation. It functions by being a part of a signaling complex on the cell membrane which affects multiple cellular activities such as cell growth motility and survival. Its role in maintaining the integrity of the epithelial cell layer also shows TROP2's significance in normal tissue homeostasis. The interaction of TROP2 with the extracellular matrix and other cell surface proteins support the structural integrity and communication between cells.

Pathways

TROP2 plays a central role in the PI3K/AKT and MAPK signaling pathways that regulate cell growth and survival. Within these pathways TROP2 works in concert with proteins like ERK and AKT important for transmitting extracellular signals into appropriate cellular responses. These pathways are key regulators of many physiological processes including cell cycle progression and apoptosis prevention.

TROP2 is strongly associated with several types of cancers particularly epithelial cancers like breast and pancreatic cancer. Overexpression of TROP2 in tumors often correlates with poor prognosis and aggressive disease phenotypes. Interaction between TROP2 and proteins like EGFR in cancer cell signaling pathways amplifies tumor progression and metastasis. Understanding these associations makes TROP2 a significant target in developing therapeutic strategies for cancer treatment.

Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

Target data

May function as a growth factor receptor.
See full target information TACSTD2

Publications (4)

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

PloS one 20:e0321555 PubMed40233061

2025

Trop-2 expression in non-small cell lung cancer.

Applications

Unspecified application

Species

Unspecified reactive species

Peiwen Kuo,Emon Elboudwarej,Marianna Zavodovskaya,Kai-Wen Lin,Chingwei V Lee,Lauri Diehl,Jilpa Patel,Sabeen Mekan,Juliane M Jürgensmeier

Cancer medicine 14:e70615 PubMed40059728

2025

Prognostic Value of Trop-2 Expression in Nonmetastatic Triple-Negative Breast Cancer and Correlation With Emerging Biomarkers.

Applications

Unspecified application

Species

Unspecified reactive species

William Jacot,Marie-Christine Chateau,Simon Thezenas,Séverine Guiu,Nelly Firmin,Virginie Lafont,Gwendal Lazennec,Charles Theillet,Florence Boissière-Michot

Molecular diagnosis & therapy 29:103-115 PubMed39485665

2024

Targeted Therapy in Salivary Gland Cancer: Prevalence of a Selected Panel of Actionable Molecular Alterations in a German Tertiary Referral Center Patient Cohort.

Applications

Unspecified application

Species

Unspecified reactive species

Maximilian Linxweiler,Silke Wemmert,Felix Leon Braun,Sandrina Körner,Lukas Alexander Brust,Moritz Knebel,Gilbert Georg Klamminger,Mathias Wagner,Luc G T Morris,Jan Philipp Kühn

JTO clinical and research reports 5:100693 PubMed39034967

2024

Trophoblast Cell Surface Antigen 2 Expression in Thymic Carcinoma: Brief Report.

Applications

Unspecified application

Species

Unspecified reactive species

Kana Kurokawa,Tetsuhiko Asao,Takuo Hayashi,Satsuki Kishikawa,Koichiro Kanamori,Takehito Shukuya,Yosuke Miyashita,Ikuko Nakamura,Taichi Miyawaki,Ryota Kanemaru,Tomoyasu Mimori,Yoichiro Mitsuishi,Ken Tajima,Naoko Shimada,Fumiyuki Takahashi,Kazuya Takamochi,Kenji Suzuki,Kazuhisa Takahashi
View all publications

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