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Kits/ Lysates/ Other Tools and Reagents IHC Tools/ Reagents

Trypsin Antigen Retrieval Solution (ab970)

  • Datasheet
  • SDS
Reviews (1)Q&A (11)References (24)

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概述

  • 产品名称

    Trypsin Antigen Retrieval Solution
  • 经测试应用

    适用于: IHC-Pmore details
  • 常规说明

    Trypsin-based antigen retrieval solution for Protease-Induced Epitope Retrieval (PIER) (ab970). Contains colored pH indicator for easy pH confirmation.

    Protocol Notes: 1) Deparaffinize tissues and hydrate to water. If necessary perform a hydrogen peroxide block, wash in water, and rinse in PBS or TBS. The tissue section is ready for trypsin digestion. 2) Combine 1 part trypsin concentrate with 1 part buffer (working solution stable for 5 working days at 2-8ºC). Incubate section for 5-10 minutes at 37°C or 15 minutes at room temperature. Then, rinse well in PBS or TBS buffer and proceed with immunostaining procedure. This product utilises a color-coded pH indicator (rose) for easy identification. The end-user can visually inspect the solution and see that the mixture or buffer is at the proper pH. If the mixed solution is purple, the pH is too high for optimum digestion. If the buffer or trypsin solution turns orange or yellow, the pH is too low for optimum digestion.

    Trypsin is a commonly used digestive enzyme. In formalin-fixed, paraffin-embedded tissues, certain antibody protocols required enzyme pretreatment for proper immunohistochemical staining.

    Other products for IHC

    Other enzymes for antigen retrieval include: Proteinase K Antigen Retrieval Solution ab64220 and Pepsin Solution ab64201.

    Find more kits and reagents for antigen retrieval, blocking, signal amplification, visualization, counterstaining, and mounting in the IHC kits and reagents guide.

性能

  • 形式

    Liquid
  • 存放说明

    Store at +4°C.
  • 存储溶液

    Preservative: 0.05% Sodium azide
    Constituents: PBS, Carrier protein
  • Concentration information loading...
  • Reagent说明

    Trypsin is a commonly used digestive enzyme. In formalin-fixed, paraffin-embedded tissues, certain antibody protocols required enzyme pretreatment for proper immunohistochemical staining.
  • 研究领域

    • Kits/ Lysates/ Other
    • Tools and Reagents
    • IHC Tools/ Reagents
    • Kits/ Lysates/ Other
    • Kits
    • IHC tools
    • Antigen retrieval reagent
    • PIER

应用

The Abpromise guarantee

Abpromise™承诺保证使用ab970于以下的经测试应用

“应用说明”部分 下显示的仅为推荐的起始稀释度;实际最佳的稀释度/浓度应由使用者检定。

应用 Ab评论 说明
IHC-P
Use at an assay dependent dilution. Ratio for 25ml concentrated trypsin and 25 ml buffer is 1:1 - 1:3.
说明
IHC-P
Use at an assay dependent dilution. Ratio for 25ml concentrated trypsin and 25 ml buffer is 1:1 - 1:3.

实验方案

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.

Click here to view the general protocols

数据表及文件

  • SDS download

  • Datasheet download

    Download

文献 (24)

发表研究结果有使用 ab970?请让我们知道,以便我们可以引用本数据表中的参考文章。

ab970 被引用在 24 文献中.

  • Xu Y  et al. Identification of a genetic variant underlying familial cases of recurrent benign paroxysmal positional vertigo. PLoS One 16:e0251386 (2021). PubMed: 33956893
  • Choi MH  et al. A selective small-molecule inhibitor of c-Met suppresses keloid fibroblast growth in vitro and in a mouse model. Sci Rep 11:5468 (2021). PubMed: 33750878
  • Choi MC  et al. Intra-Articular Administration of Cramp into Mouse Knee Joint Exacerbates Experimental Osteoarthritis Progression. Int J Mol Sci 22:N/A (2021). PubMed: 33810460
  • Gross-Amat O  et al. Characterization of a Topically Testable Model of Burn Injury on Human Skin Explants. Int J Mol Sci 21:N/A (2020). PubMed: 32971882
  • Wang Y  et al. PDGFRa marks distinct perivascular populations with different osteogenic potential within adipose tissue. Stem Cells 38:276-290 (2020). PubMed: 31742801
View all Publications for this product

客户评价及客户问答

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1-10 of 12 Abreviews or Q&A

works well

Excellent Excellent 5/5 (Ease of Use)
Abreviews
Abreviews
The trypsin digestion worked well for the PRG2 (ab14462) staining.
The enzyme working solution is easy to create. The corresponding buffer is included in the kit.
For the digestion it takes a maximum of 15 minutes.
The reviewer received a reward from Abcam’s Loyalty Program in thanks for submitting this Abreview and for helping the scientific community make better-informed decisions.

Abcam user community

Verified customer

提交于 Feb 08 2018

Question

In the described protocol I see the following :

Combine 1 part trypsin concentrate with 1 part buffer.

Is the trypsin ab970 provided with a buffer?

Thanks in advance for your answer,

Best regards,

Read More

Abcam community

Verified customer

Asked on Mar 10 2014

Answer


There are 2X 25 ml vials in the kit

1 vial is 25 ml Trysin (concentrated liquid)

2nd vial 25 ml Trypsin buffer

Read More

Padamjeet Singh

Abcam Scientific Support

回复于 Mar 10 2014

Question

I want to ask if this ab970 retrieval solution is suitable for my protocol (ab13418,ab79091, rabbit bone, parafiin embedded sections)

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Abcam community

Verified customer

Asked on Dec 13 2012

Answer

Thank you for contacting us.

For a standard IHC-P protocol I usually recommend a HIER method (Heat Induced Epitope Retrieval) for the antigen retrieval step using a Tris/EDTA pH 9.0 buffer as described in section "D" of the following protocol:https://www.abcam.com/index.html?pageconfig=resource&rid=11384.

However you could also use an enzyme mediated antigen retrieval step and using ab970 for this should work fine. Please let us know if you have problems as these products are covered by our abpromise guarantee.

At Abcam, providing quality service is just as important as providing quality products. Our Abpromise® ensures that you can trust our products to perform as stated on the datasheets, or we will offer a replacement, credit, or refund.

The Abcam Abpromise® guarantee:
- 100% Scientific and Customer Support for any product you buy from Abcam or one of our authorized distributors.
- We guarantee our products work in the tested species and applications stated on the datasheet.
- We will replace or refund products not performing as stated on the datasheet if reported within 6 months of purchase.
- We investigate any quality concerns raised by customers to ensure our catalog contains products that perform to the highest standards.

Please note these conditions to our Abpromise®:
- Protocol information must be provided in order for the claim to be validated.
- Antibodies tested in recombinant samples only are not guaranteed for use on endogenous samples.
- “Predicted to react” information on the datasheets is provided for reference only and these species are not guaranteed.
- Fast Track antibodies are covered for ELISA against the immunizing peptide only.

I hope this information is helpful to you. Please do not hesitate to contact us if you need any more advice or information.

Free Rabbit monoclonal antibody with any purchase of a primary antibody, while stocks last! Quote “RABMAB-XBSMG” in your next primary antibody order. For more information, visit the following link: https://www.abcam.com/index.html?pageconfig=resource&rid=15447

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Abcam Scientific Support

回复于 Dec 13 2012

Question



I just would like to know if the trypsin enzymatic antigen retrieval solution also comes with the storage buffer in addition to the trypsin. Thanks.

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Abcam community

Verified customer

Asked on Nov 05 2012

Answer

Thank you for contacting us. Yes, ab970 comes with 25 mL of concentrated Trpsin and 25 mL of Trypsin buffer.

I hope this information is helpful to you. Please do not hesitate to contact us if you need any more advice or information.

Use our products? Submit an Abreview. Earn rewards!
https://www.abcam.com/abreviews

Read More

Abcam Scientific Support

回复于 Nov 05 2012

Question

1) Antibody is stored at -4 until use, just a normal freezer. When I use it I keep it in a refridgerator for no longer than 2 days.

2) Could you clarify this point? Are you saying I should not have added the PBS to the antibody vial? Only 50ul was shipped--essentially I could see no ab in the vial. I had to add some PBS to the vial because when I recieved it there was nothing to pipette out. When you say "increase antibody concentration" do you mean "decrease antibody concentration?." Also--I did not want to dilute the antibody before doing my titration experiments because i was nervous to over dilute rendering the rest of the ab useless.

3) I will use this temperature.

4) I just dip them in a copland jar with PBS for 2 minutes per jar so a total of 4 minutes. This was recommended in another company's antibody's primary antibody application videos for ab staining.


--Over the weekend I extended the period of antigen retrieval to 25 minutes, increased the conc of secondary to 1:50 and increased the conc of primary fox 3 to 1:500. I was able to get Fox 3 to work for the most part. VWF still doesn't display any fluorescence. What should I try now? I will read the paper.

Read More

Abcam community

Verified customer

Asked on May 01 2012

Answer

Thank you for your email.

To answer your questions and make some comments/suggestions that hopefully will help you further:

1) The antibodies (shipped as is) should be stored aliquoted and stored at -20 or -80 degree. This would also apply to the 1/10 stock solution as well. Please make sure to avoid freeze-thaw cycles. For ab6994, a brief period of storage at +4 degree for 1-2 weeks would be fine, but for long term storage -20 or -80 degree is recommended.

2) For ab6994, you should have received 100 ul, and for ab104225 you should have received 50 ul. You can spin the vials briefly before opening and the liquid should be at the bottom of the tube and it would be visible. In thecase of these 2 antibodies, diluting them to 1/10it might be OK as they are either whole antiserum (contain other proteins) or contain lots of BSA as stabilizer.
In general, it is recommended to dilute the antibody to the working solution just before use.

A 1/100dilution would be an increase in antibody concentration compared to 1/500 (which is more dilute), as 1/100 contains more antibody than 1/500.

3) Yes, the higher temperaturewill help with the antigen retrieval.

4) Yes, this is probably fine. But in case of no signal, you might consider reducing the time to e.g. 2x 30 sec.

I'm glad to hear you are getting now signal with the Fox 3 antibody. As for the VWF antibody, would also use more primary and secondary antibody, increase the retrieval temp to 37 degrees and reduce the wash time. Yes, checking the reference could provide additional helpful information.

I wish you good luck and look forward to hear back.

Use our products? Submit an Abreview. Earn rewards!
https://www.abcam.com/abreviews

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Abcam Scientific Support

回复于 May 01 2012

Question

The trypsin antigen retrieval did not work. I'd like to review what I did to see if there are any large errors.

Rats wre perfused in situ and brains were preserved in 4% paraformaldehyde solution overnight. We purchased the paraformaldehyde commercially pre-prepared. We then sucrose protected the brains (after speaking with an abcam rep) in a sucrose series to freeze protect them. We then froze the brains for a period of about a month.

I recieved the Fox-3 antibody from abcam as a 50ul concentrate. In reading the antibody reviews online I saw that our target antibody concentration would be between 1:500-1:2000. So I initially added 500ul to the 50 ul concentrate to have an initial 1:10 dilution (roughly). Then I took 1 ul of this working solution and diluted it with 200 ul PBS to get my 1:2000 dilution. I followed this with 1ul working solution in 100 ul PBS to get my 1:1000 dilution. Then, 2:100ul PBS to get my 1:500 dilution. I did this because an abcam representative said I should shoot for 100ul per slice.

I took my test slices, washed them in PBS for 5 minutes, then outlined them in a histology pen, and applied the primary. I spoke with an abcam rep last week who advised us not to block unless we had too much non-specific staining. I used the trypsin enzymatic retrieval kit you recommended which entained mixing the trypsin concentrate with a diluent included in the kit at a ratio 1:1. I applied 100ul of this per slice for 15 minutes at room temperature under a fume hood (not in the dark--this was not required in the literature). I then washed twice with PBS, and I applied the primary on a counter top at roomtemperatureand then stored in at 4 degrees c overnight in a dark container. After this, I rinsed the slices in PBS, and thenbathed the slices twice in PBS to get the primary off, and then applied the Dylight secondary (dilution info below) for one hour at room temp in a dark environment. I then washed once with PBS and applied the DAPI mounting medium we purchased from abcam. I coverslipped the slides and left them for about an hour at 4 degrees c in a dark slide holder. I then attempted microscopy.

Secondary info: (Donkey anti rabit Dylight 488) from its stock solution and read online that a 1:50-1:200 dilution would be optimal so I tried 1:100 which should have produced at least some fluorescence. I took the equivalent of 1ul Dylight to 99ul PBS done in the dark..

The VWF antibody was prepared the exact same way except the suggested concentrations were slightly different.
I took the 100ul concentrated antibody that abcam shipped and immediately added 900ul for a 1:10 working solution dilution. Then I did an experiment with 1:200 (5ul working solution in 95ul pbs); 1:500 (2ul working in 98 ul pbs); and 1:800 (2 ul working in 198 pbs). Secondary was applied at same conc.

Where should we go from here?

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Abcam community

Verified customer

Asked on Apr 30 2012

Answer

Thank you for your email.
I am sorry to hear the antigen retrieval step did not improve your results.

I have looked throught your protocol you sent me and have the following suggestions, comments and questions:

1) You are making a 1/10 stock solution for each antibody. How do you store the antibody afterwards?

2) Also, in my understanding, diluting the entire vial of antibody - although it makes it easier for pipetting - can lead to a loss of antibody to the tube wall due to absorption andan increase in volume. Thus, increasing the primary antibody concentration might be necessary(e.g. 1/100).

3) For the enzymatic antigen retrieval, a temperatue of 37 degree would be recommendedas this is the temparature where the enzyme is most active.

Here is the link to our antigen retrieval protocol page: https://www.abcam.com/index.html?pageconfig=resource&rid=11488. In section 3, you can find information about the enzymatic retrieval.

4) In your protocol description, you mentioned: "I rinsed the slices in PBS, and then bathed the slices twice in PBS to get the primary off". How long did you bathe the slides in PBS each time? If this is done for too long, you might potentially also lose primary antibody.

5) As for the secondary antibody, it will only bind specifically if the primary antibody is present. Thus, doing the antigen retrieval at a higher temperature and using potentially more primary antibody should help with that. In addition, you might also want to try a lower dilution and longer incubation time with the seconadry antibody (e.g. 1/50 for 2 h).

6) You are using perfused frozen sections which we abbreviate IHC-FoFr.
For the VWF antibody (ab6994) this application has been tested, and it was added based on the following publication:
Fujimoto KL et al. Naive rat amnion-derived cell transplantation improved left ventricular function and reduced myocardial scar of postinfarcted heart. Cell Transplant 18:477-86 (2009). IHC-FoFr; Rat. PubMed: 19622235
It might be worthwhile checking this publication for additional protocol details or contacting the authors for the details of their technique.
In addition, a customer submittedthe following Abreview for IHC-FoFr:
https://www.abcam.com/Von-Willebrand-Factor-antibody-ab6994.html&tab=abreviews&intabreviewid=11467

As for the FOX3 antibody (ab104225) this application has not been tested yet, and we do not have information if and how well IHC-FoFr would work with this antibody. Thus, we also do not havea specific protocolestablished for this antibody. Since IHC-P was tested with ab104225, IHC-FoFr might work as well. Here is the link to the Abreview a customer submitted for IHC-P:
https://www.abcam.com/NeuN-antibody-Neuronal-Marker-ab104225.html&tab=abreviews&intabreviewid=25847

I have also attached a paper describing how heat-inducedantigen retrieval can be used on frozen sections.

I hope this information will be of help to you. Please let me knowif these suggestions are improving your results or not.

Use our products? Submit an Abreview. Earn rewards!
https://www.abcam.com/abreviews

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Abcam Scientific Support

回复于 Apr 30 2012

Question

Thank you for the help today. I have already purchased ab970 (trypsin enzymatic antigen retrieval) after our conversation and will let you know how that works. I took 5 ul of secondary and it did flouresce so the antibody is not dead. I will try antigen retrieval when it arrives.

Again, here are the ab's that I purchased.

Primaries
ab6994
ab104225

Secondary
ab96891

I had purchased them after speaking with a representative at tech support at abcam, but you are very knowledgeable--do you know of a secondary that maybe more appropriate for the two primaries? We will purchase something new if it is more likely to work.

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Abcam community

Verified customer

Asked on Apr 25 2012

Answer

Thank you for your reply.
I'm glad to hear that the secondary antibody shows fluorescence.

As for selecting another secondary antibody, could you please let me know which fluorophore or wavelength range is covered by your miscroscope? Based on that informationI can then select a different antibody for you.

Please let me know. Thank you!

Use our products? Submit an Abreview. Earn rewards!
https://www.abcam.com/abreviews

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Abcam Scientific Support

回复于 Apr 25 2012

Question

For this antibody (75693), antigen retrieval is advised with trypsin: is there a brand/lot that your recommend of trypsin?

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Abcam community

Verified customer

Asked on Apr 25 2012

Answer

Thank you for your email.
I would recommed one of the following trypsin products:
ab970: Trypsin Enzymatic Antigen Retrieval Solution
https://www.abcam.com/trypsin-enzymatic-antigen-retrieval-solution-ab970.html
ab64205: Trypsin Enzymatic Pretreatment Kit
https://www.abcam.com/trypsin-enzymatic-pretreatment-kit-ab64205.html
ab128214: Trypsin (Enzymatic Pretreatment)
https://www.abcam.com/trypsin-enzymatic-pretreatment-ab128214.html
I hope this information is helpful to you. Please do not hesitate to contact us if you need any more advice or information.
Use our products? Submit an Abreview. Earn rewards!
https://www.abcam.com/abreviews

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Abcam Scientific Support

回复于 Apr 25 2012

Question

IHC-Fr with adult rat brain (hippocampus)
no signal at all
20 um sections
fixation: PFA 4% overnight
Ab: ab6994: 1/200, 1/500, 1/800 o/n 4 degree
ab104225: 1/500, 1/1000, 1/2000 o/n 4 degree
block: none
secondary: 1/200

suggestions: try AR (enzymatic), check if secondary works (fluorescent plate reader or fluorescence micrscope, with other primary Ab)

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Abcam community

Verified customer

Asked on Apr 25 2012

Answer

Thank you for contacting us.
I am sorry to hear that the antibodie might not be working as expected.

As we discussed over the phone the following troubleshooting tips might help in finding the cause of the problem:

1) Try antigen retrieval (enzymatic) using one of the products we discussed (ab64201, ab64220, ab64205 or ab970).

2) Check if secondary antibody works (e.g. with fluorescent plate reader or fluorescence micrscope, or with another primary Ab)

Please let me know if and how your results improving.
I wish you good luck and look forward to hear back from you.

Use our products? Submit an Abreview. Earn rewards!
https://www.abcam.com/abreviews

Read More

Abcam Scientific Support

回复于 Apr 25 2012

Question

To whom it may concern: I recently purchased several of your antibodies for IHC-P. The fibronectin antibody (ab6328) recommends enzymatic antigen retrieval before staining. Which enzymatic product would you recommend? I see that ab970 has several references. Is this one of your more popular products? In addition, which heat antigen retrieval process would you recommend for ab1416? Thank you for your assistance.

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Abcam community

Verified customer

Asked on Jan 09 2012

Answer

Thank you for contacting Abcam. For ab6328, I would recommend using ab970, the Trypsin Enzymatic Antigen Retrieval Solution that you mentioned. I believe that this will give you very good results in your IHC staining. For ab1416, from what I have read, it look as though that heat mediated antigen retrieval is recommended. You could use ab972, the Heat Mediated High pH Antigen Retrieving Solution, the protocol for this product is available on the website. If there is anything else I can help you with, please let me know.

Read More

Abcam Scientific Support

回复于 Jan 09 2012

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