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  1. Link

    products/primary-antibodies/progerin-antibody-13a4-ab66587.pdf

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Developmental Biology Post embryonic development Aging
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Anti-Progerin 抗体 [13A4] (ab66587)

  • Datasheet
  • SDS
Reviews (2)Q&A (9)References (19)

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Western blot - Anti-Progerin antibody [13A4] (ab66587)
  • Western blot - Anti-Progerin antibody [13A4] (ab66587)

Key features and details

  • Mouse monoclonal [13A4] to Progerin
  • Suitable for: WB
  • Reacts with: Human
  • Isotype: IgG1

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関連製品

製品の概要

  • 製品名

    Anti-Progerin antibody [13A4]
    Progerin 一次抗体 製品一覧
  • 製品の詳細

    Mouse monoclonal [13A4] to Progerin
  • 由来種

    Mouse
  • アプリケーション

    適用あり: WBmore details
  • 種交差性

    交差種: Human
  • 免疫原

    Synthetic peptide. This information is proprietary to Abcam and/or its suppliers.

  • ポジティブ・コントロール

    • HeLa Flag-Progerin or primary progeria fibroblasts.
  • 特記事項

    Progerin is expressed as the result of a de novo point mutation in the lamin A gene and is the underlying cause of Hutchison-Gilford progeria syndrome (accelerated aging). There is now also evidence that small amounts of Progerin are also produced in normal cells and that this might have a link with the normal aging process (Cao et al., PNAS, 2007 Mar 20;104(12):4949-54.). Gly608Gly is the most frequent HGPS-associated mutation. It is a silent base substitution that activates a cryptic splice donor in exon 11 of LMNA (BOX 3). Use of this anomalous splice donor leads to the loss of 150 nucleotides from the 3' end of exon 11 in the mature lamin A mRNA, and internal deletion of 50 amino-acid residues from the C terminus of lamin A. Progerin is the resulting mutant protein. Progerin retains its C-terminal CAAX motif, and therefore is farnesylated.

    This antibody clone is manufactured by Abcam. If you require a custom buffer formulation or conjugation for your experiments, please contact orders@abcam.com.

    The Life Science industry has been in the grips of a reproducibility crisis for a number of years. Abcam is leading the way in addressing this with our range of recombinant monoclonal antibodies and knockout edited cell lines for gold-standard validation. Please check that this product meets your needs before purchasing.

    If you have any questions, special requirements or concerns, please send us an inquiry and/or contact our Support team ahead of purchase. Recommended alternatives for this product can be found below, along with publications, customer reviews and Q&As

製品の特性

  • 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 or -80°C. Avoid freeze / thaw cycle.
  • バッファー

    pH: 7.40
    Preservative: 0.02% Sodium azide
    Constituents: PBS, 6.97% L-Arginine
  • Concentration information loading...
  • 精製度

    Protein G purified
  • 一次抗体 備考

    Progerin is expressed as the result of a de novo point mutation in the lamin A gene and is the underlying cause of Hutchison-Gilford progeria syndrome (accelerated aging). There is now also evidence that small amounts of Progerin are also produced in normal cells and that this might have a link with the normal aging process (Cao et al., PNAS, 2007 Mar 20;104(12):4949-54.). Gly608Gly is the most frequent HGPS-associated mutation. It is a silent base substitution that activates a cryptic splice donor in exon 11 of LMNA (BOX 3). Use of this anomalous splice donor leads to the loss of 150 nucleotides from the 3' end of exon 11 in the mature lamin A mRNA, and internal deletion of 50 amino-acid residues from the C terminus of lamin A. Progerin is the resulting mutant protein. Progerin retains its C-terminal CAAX motif, and therefore is farnesylated.
  • ポリ/モノ

    モノクローナル
  • クローン名

    13A4
  • ミエローマ

    x63-Ag8.653
  • アイソタイプ

    IgG1
  • 軽鎖の種類

    kappa
  • 研究分野

    • Developmental Biology
    • Post embryonic development
    • Aging

関連製品

  • Compatible Secondaries

    • Goat Anti-Mouse IgG H&L (Alexa Fluor® 488) (ab150113)
    • Goat Anti-Mouse IgG H&L (HRP) (ab205719)
  • Isotype control

    • Mouse IgG1, kappa monoclonal [15-6E10A7] - Isotype Control (ab170190)
  • Recombinant Protein

    • Recombinant Human Progerin protein (ab93918)

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ab66587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
WB (1)
1/1000. Detects a band of approximately 70 kDa.
特記事項
WB
1/1000. Detects a band of approximately 70 kDa.

ターゲット情報

  • 機能

    Lamins are components of the nuclear lamina, a fibrous layer on the nucleoplasmic side of the inner nuclear membrane, which is thought to provide a framework for the nuclear envelope and may also interact with chromatin. Lamin A and C are present in equal amounts in the lamina of mammals. Plays an important role in nuclear assembly, chromatin organization, nuclear membrane and telomere dynamics. Required for normal development of peripheral nervous system and skeletal muscle and for muscle satellite cell proliferation. Required for osteoblastogenesis and bone formation. Also prevents fat infiltration of muscle and bone marrow, helping to maintain the volume and strength of skeletal muscle and bone.
    Prelamin-A/C can accelerate smooth muscle cell senescence. It acts to disrupt mitosis and induce DNA damage in vascular smooth muscle cells (VSMCs), leading to mitotic failure, genomic instability, and premature senescence.
  • 組織特異性

    In the arteries, prelamin-A/C accumulation is not observed in young healthy vessels but is prevalent in medial vascular smooth muscle cells (VSMCs) from aged individuals and in atherosclerotic lesions, where it often colocalizes with senescent and degenerate VSMCs. Prelamin-A/C expression increases with age and disease. In normal aging, the accumulation of prelamin-A/C is caused in part by the down-regulation of ZMPSTE24/FACE1 in response to oxidative stress.
  • 関連疾患

    Emery-Dreifuss muscular dystrophy 2, autosomal dominant
    Emery-Dreifuss muscular dystrophy 3, autosomal recessive
    Cardiomyopathy, dilated 1A
    Lipodystrophy, familial partial, 2
    Limb-girdle muscular dystrophy 1B
    Charcot-Marie-Tooth disease 2B1
    Hutchinson-Gilford progeria syndrome
    Cardiomyopathy, dilated, with hypergonadotropic hypogonadism
    Mandibuloacral dysplasia with type A lipodystrophy
    Lethal tight skin contracture syndrome
    Heart-hand syndrome Slovenian type
    Muscular dystrophy congenital LMNA-related
    Defects in LMNA may cause a late-onset cardiocutaneous progeria syndrome characterized by cutaneous manifestations of aging appearing in the third decade of life, cardiac valve calcification and dysfunction, prominent atherosclerosis, and cardiomyopathy, leading to death on average in the fourth decade.
  • 配列類似性

    Belongs to the intermediate filament family.
    Contains 1 LTD domain.
  • 翻訳後修飾

    Increased phosphorylation of the lamins occurs before envelope disintegration and probably plays a role in regulating lamin associations.
    Proteolytic cleavage of the C-terminal of 18 residues of prelamin-A/C results in the production of lamin-A/C. The prelamin-A/C maturation pathway includes farnesylation of CAAX motif, ZMPSTE24/FACE1 mediated cleavage of the last three amino acids, methylation of the C-terminal cysteine and endoproteolytic removal of the last 15 C-terminal amino acids. Proteolytic cleavage requires prior farnesylation and methylation, and absence of these blocks cleavage.
    Sumoylation is necessary for the localization to the nuclear envelope.
    Farnesylation of prelamin-A/C facilitates nuclear envelope targeting.
  • 細胞内局在

    Nucleus speckle and Nucleus. Nucleus envelope. Nucleus lamina. Nucleus, nucleoplasm. Farnesylation of prelamin-A/C facilitates nuclear envelope targeting and subsequent cleaveage by ZMPSTE24/FACE1 to remove the farnesyl group produces mature lamin-A/C, which can then be inserted into the nuclear lamina. EMD is required for proper localization of non-farnesylated prelamin-A/C.
  • Target information above from: UniProt accession P02545 The UniProt Consortium
    The Universal Protein Resource (UniProt) in 2010
    Nucleic Acids Res. 38:D142-D148 (2010) .

    Information by UniProt
  • 参照データベース

    • Entrez Gene: 4000 Human
    • Omim: 150330 Human
    • SwissProt: P02545 Human
    • SwissProt: Q6UYC3 Human
    • Unigene: 594444 Human
    • Unigene: 706897 Human
    • Unigene: 733671 Human
    • 別名

      • 70 kDa lamin antibody
      • CDCD1 antibody
      • CDDC antibody
      • CMD1A antibody
      • CMT2B1 antibody
      • EMD2 antibody
      • FPL antibody
      • FPLD antibody
      • HGPS antibody
      • IDC antibody
      • LA delta 50 antibody
      • Lamin A delta 50 antibody
      • Lamin-A/C antibody
      • LDP1 antibody
      • LFP antibody
      • LGMD1B antibody
      • LMN1 antibody
      • LMNA antibody
      • LMNA_HUMAN antibody
      • LMNC antibody
      • PRO1 antibody
      • Renal carcinoma antigen NY-REN-32 antibody
      • renal carcinoma antigen NYREN32 antibody
      see all

    画像

    • Western blot - Anti-Progerin antibody [13A4] (ab66587)
      Western blot - Anti-Progerin antibody [13A4] (ab66587)
      Lane 1 : anti Lamin A/C antibody at 1/2000 dilution
      Lane 2 : anti Flag-tag antibody at 1/5000 dilution
      Lane 3 : Anti-Progerin antibody [13A4] (ab66587) at 1/500 dilution

      All lanes : Whole cell lysate of HeLa cells ectopically expressing Flag-tagged human proteins (protein accession number AAR29466)


      ab66587 specifically detecting human Progerin by Western blotting.

      Western blot analysis (10% PAGE) of whole cell lysate of HeLa cells ectopically expressing Flag-tagged human proteins (protein accession number AAR29466). The membrane was cut into strips and each strip was incubated separately with the following antibodies:

    • Western blot - Anti-Progerin antibody [13A4] (ab66587)
      Western blot - Anti-Progerin antibody [13A4] (ab66587)
      Lane 1 : Anti Lamin A/C 3A6-4C11 at 1/1000 dilution
      Lanes 2 & 5 : Anti-Progerin antibody [13A4] (ab66587) at 1/200 dilution
      Lanes 3 & 6 : Anti-Progerin antibody [13A4] (ab66587) at 1/500 dilution
      Lanes 4 & 7 : Anti-Progerin antibody [13A4] (ab66587) at 1/1000 dilution

      All lanes : HeLa cells stably expressing Flag-tagged human Progerin

      Observed band size: 70 kDa why is the actual band size different from the predicted?


      Exposure time: 2 minutes


      Incubation with primary antibody: 2 hours at RT, 0.5% NFDM in PBS-Tween.

    プロトコール

    • Immunoprecipitation protocols
    • Immunocytochemistry & immunofluorescence protocols
    • Western blot protocols

    Click here to view the general protocols

    データシートおよび資料

    • SDS download

    • Datasheet download

      Download

    参考文献 (19)

    ab66587 を使用した論文を発表された方は、こちらまでお知らせください。データシートに掲載させていただきます。

    ab66587 は 19 報の論文で使用されています。

    • Zhang N  et al. Unique progerin C-terminal peptide ameliorates Hutchinson-Gilford progeria syndrome phenotype by rescuing BUBR1. Nat Aging 3:185-201 (2023). PubMed: 37118121
    • Hu Q  et al. Anti-hsa-miR-59 alleviates premature senescence associated with Hutchinson-Gilford progeria syndrome in mice. EMBO J 42:e110937 (2023). PubMed: 36382717
    • Maynard S  et al. Lamin A/C impairments cause mitochondrial dysfunction by attenuating PGC1α and the NAMPT-NAD+ pathway. Nucleic Acids Res 50:9948-9965 (2022). PubMed: 36099415
    • Trani JP  et al. Mesenchymal stem cells derived from patients with premature aging syndromes display hallmarks of physiological aging. Life Sci Alliance 5:N/A (2022). PubMed: 36104080
    • Xu Q  et al. Vascular senescence in progeria: role of endothelial dysfunction. Eur Heart J Open 2:oeac047 (2022). PubMed: 36117952
    View all Publications for this product

    レビューと Q&A

    Show All レビュー Q&A
    レビューを送る 質問を送る

    1-10 of 11 Abreviews or Q&A

    Immunocytochemistry/ Immunofluorescence abreview for Anti-Progerin antibody [13A4]

    Poor
    Abreviews
    Abreviews
    abreview image
    Application
    Immunocytochemistry/ Immunofluorescence
    Sample
    Human Cell (iPSC-derived smooth muscle cells)
    Permeabilization
    Yes - 0.1% TritonX-100 for 10 minutes
    Specification
    iPSC-derived smooth muscle cells
    Blocking step
    BSA as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 25°C
    Fixative
    Paraformaldehyde
    Read More
    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

    投稿 Aug 30 2022

    Western blot abreview for Anti-Progerin antibody [13A4]

    Excellent
    Abreviews
    Abreviews
    abreview image
    Application
    Western blot
    Sample
    Human Purified protein (Bladder Cancer (RT4, T24, UMUC-3, J82))
    Gel Running Conditions
    Non-reduced Non-Denaturing (Native) (10 % gel)
    Loading amount
    30 µg
    Treatment
    GFP, LaminA, Progerin overexpression
    Specification
    Bladder Cancer (RT4, T24, UMUC-3, J82)
    Blocking step
    Milk as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 24°C
    Read More
    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

    投稿 Oct 28 2020

    Question

    Phone call: no results in Co-IP on human sample

    Read More

    Abcam community

    Verified customer

    Asked on May 25 2012

    Answer

    Je suisque vous avez eu des problèmes en coIP.Merci pour votre appel.

    Voici le lien promis pour nos protocoles en ligne:
    https://www.abcam.com/index.html?pageconfig=resource&rid=11385
    https://www.abcam.com/index.html?pageconfig=popular_protocols

    J'ai contacté aussi le laboratoire, pour savoir quel protocole spécifiquement avait été testé. Voici les informations clés: Le laboratoire utilisait du tampon RIPA avec des inhibiteurs de protéases (RIPA PI).10ug de l'anticorps étaient dilué dans 200ul du tampon RIPA PI. 50 ul de billes magnétiques avec protéine Glavées était ensuite transféré sur ce mélange et lavé. Ensuite 200ul du lysat étaient ajoutées et incubées pour 10 minutes. Lavages. Elution de la protéine avec un tampon NuPAGE LDS Sample avec de la DTT et chauffage à 10 minutes à 70°C. Ensuite Western blot pour analyse.

    J'espère que ces informations vous aident. Veuillez ne pas hésiter à me demander plus de détails. Comme discuté aussi au téléphone, nous regarderions aussi volontiers votre protocole pour faire des suggestions. Veuillez trouver pour ceci ci-joint un questionnaire qui nous permet de regrouper le plus d'informations possible sur le protocole que vous avez utilisé avec cet anticorps.
    Celui-ci nous permettra de vous fournir la meilleure assistance technique.

    Je me réjouis d'avoir de vos nouvelles et je vous souhaite en attendant un bon longweekend!

    Read More

    Abcam Scientific Support

    Answered on May 25 2012

    Question

    Please see customers response below:

    Please find attached original western blots photos together with the illustration of what each lane represents.

    My reply for the suggestions:

    1. Please see attachments. I was using MagicMark as my marker. Please note I tried to over-run the gel so I could have better separation of bands. As a result, the 20kDa marker was not on the gel anymore.

    2. Normal samples; are protein extracts from muscle biopsies of normal humans that are stored in -80C freezer before use.


    3. It is the standard procedure of my lab to use Tris-Triton for protein extraction. But I can try RIPA next time I do an extraction.

    4. Thank you for the suggestion on washing with PBST. I will do it in my next western.

    5. The secondary antibody has been working fine with other primary antibodies including lamin A/C, 4G8, 6E10 (both for APP), dystrophin, dysferlin and desmin in my lab.

    6. I will do a protein densitometry once the western is optimized. For now, I am still trying to see if the primary antibody works in my conditions or not. But as a reference to the quality of protein extracts, I take the fact that the western probed with lamin A/C antibody showed the targeted bands (‘western 2’, gel on the right) using the same samples for progerin antibody probing (western gel on the left) as a sign of the existence of protein.

    Thank you very much for your timely and helpful reply. As my sample supplies are running low, I hope you can understand my hesitance to do another western that is likely to give very similar results as before. So I am wondering if I can get a replacement of the same antibody next

    Looking forward for your response.

    Kind regards,

    Read More

    Abcam community

    Verified customer

    Asked on Apr 10 2012

    Answer

    Thank you for kindly confirming these details. I am sorry this vial of antibody has not worked for this customer.

    As requested, we are pleased to arrange a free of charge replacement. I can confirm that 1 vial of ab66587 has been added to your order number #####. This has Abcam order reference ######.

    I would like to reassure you that this free of charge replacement vial is also covered by our Abpromise guarantee. Should the customer still be experiencing difficulties with the new vial, or if you have any further questions, please do not hesitate to let me know.

    Thank you for your help and cooperation with this case. Please do not hesitate to contact me if you need anything further.

    Read More

    Abcam Scientific Support

    Answered on Apr 10 2012

    Question

    LOT NUMBER 787619
    DESCRIPTION OF THE PROBLEM Non-specific band - Wrong band in normal samples that is not supposed to over-express progerin protein no band for progeria cells that over-express progerin
    SAMPLE Protein extract from frozen muscle sections and cell extract
    PRIMARY ANTIBODY Anti-progerin (ab66587) 1:400 diluted with primary antibody diluent from Invitrogen WesternBreeze Immunodection kit
    DETECTION METHOD ECL POSITIVE AND NEGATIVE CONTROLS USED Used protein extracts from progerin fibroblasts as positive control
    ANTIBODY STORAGE CONDITIONS -20ºC
    SAMPLE PREPARATION Volume Stock 0.5ml 1.25M Tris/HCl pH 6.8 3ml 25% SDS 0.5 ml glycerol 0.9ml Milli-Q water x1 Loading buffer (incomplete) 483.75l PMSF 1.25l Protease inhibitors 15l 150ul treatment buffer/4.5mg tissue, 100ul treatment buffer/4.5mg cell cultures - Sonicate using a 3mm tip with 4-8 pulses for 1 second each at a setting of 30/100 on a Sonics or Branson sonicator unit. Ensure tip is fully immersed in solution. - Tap tube and centrifuge briefly to ensure all tissue is immersed in solution - Sonicate twice for 1 second as above - Remove 10l of each extract if applicable for total protein estimation - Remove volume for loading (eg 50l). Freeze remainder at -80C. - Add dithiothreitol from stock solution 5l/100l (3.75l/75l) - Add bromophenol blue from stock solution 2l/100l (1.5l /75l) - Heat at 95C for 5 minutes - Centrifuge at 1,4000 rpf for 15 minutes - Load onto gel or store at -80C until use
    AMOUNT OF PROTEIN LOADED 10ul for muscle protein 20ul for cell extract
    ELECTROPHORESIS/GEL CONDITIONS NuPAGE 4-12% Bis-Tris gel (Cat# NP0322BOX)
    TRANSFER AND BLOCKING CONDITIONS Transfer O/N at 290mA at 4ºC. Blocked by Blocker solution provided by Invitrogen WesternBreeze Immunodection kits (Cat#WB7103). Wash with distilled water for 5min X 2
    SECONDARY ANTIBODY Wash with wash solution from WesternBreeze kit for 5min X 3. Wash with distilled water for 5min X 2. Incubate with secondary antibody from WesternBreeze kit for 1hr. Wash with wash solution from WesternBreeze kit for 5min X 2. Wash with distilled water for 5min X 2
    HOW MANY TIMES HAVE YOU TRIED THE APPLICATION? 2
    HAVE YOU RUN A "NO PRIMARY" CONTROL? No
    DO YOU OBTAIN THE SAME RESULTS EVERY TIME? Yes
    WHAT STEPS HAVE YOU ALTERED? Include positive control
    ADDITIONAL NOTES Please see documents attached

    Read More

    Abcam community

    Verified customer

    Asked on Apr 05 2012

    Answer

    Thank you for taking the time to complete our questionnaire and contact us. I am sorry to hear you have had difficulty obtaining satisfactory results from this antibody.

    The details you have kindly provided will enable us to investigate this case for you and this is also helpful in our records for monitoring of quality.

    I would like to reassure you that ab66587 is tested and covered by our 6 month guarantee for use in WB and human samples. In the event that a product is not functioning in the applications cited on the product data sheet, we will be pleased to provide a credit note or free of charge replacement.

    Reviewing this case, I would like to offer some suggestions to help optimise the results from ab66587. I would also appreciate if you can confirm some further details:

    1. I would appreciate if you are able to provide an image, including molecular weight markers. This would help me to assess the results.

    2. Please confirm which species the samples are from.

    3. I can recommend to try RIPA buffer to prepare the lysate, this may provide a more suitable protein preparation particularly as this is a membrane and nuclear protein.

    4. I would suggest not to wash the membrane in distilled water. Wash in PBS containing 0.2% Tween, or the wash buffer from the kit. This will provide a better more stringent wash and help remove any non specific binding.

    5. Could you confirm if the secondary antibody working well with other primary antibodies?

    6. I would recommend to assess the amount of protein loading by doing a protein assay on the sample. We recommend to load 20 - 30 ug of total protein per sample.

    I hope this information is helpful, thank you for your cooperation. Should the suggestions not improve the results, please do not hesitate to contact me again with
    the further requested details.

    Read More

    Abcam Scientific Support

    Answered on Apr 05 2012

    Question

    Dear Abcam Customer Services and Technical Support Team, Many thanks for your kind attention and help. I would be very grateful if you can give me Anti-ENO1 antibody (ab85086) as a replacement sample. Thank you very much again with my best regards.

    Read More

    Abcam community

    Verified customer

    Asked on Dec 20 2011

    Answer

    Thank you for confirming these details and for your cooperation. The details provided enable us to closely monitor the quality of our products. I am sorry ab66587 did not perform as stated on the datasheet and for the inconvenience this has caused. As requested, I have issued a free of charge replacement with ab85086 with the order number xxx. To check the status of the order please contact our Customer Service team and reference this number. Please note that this free of charge replacement vial is also covered by our Abpromise guarantee. Should you still be experiencing difficulties, or if you have any further questions, please do not hesitate to let us know. I wish you the best of luck with your research.

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    Abcam Scientific Support

    Answered on Dec 20 2011

    Question

    Dear Sir/madam, Thank you very much for your kind attention. Secondary antibody that I used it is: Goat polyclonal Secondary Antibody to Mouse IgG - H&L (Biotin) (ab6788) I have used the same secondary antibody with another mouse monoclonal Antibody and it works very well. Thank you very much again with my best regards.

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    Abcam community

    Verified customer

    Asked on Dec 19 2011

    Answer

    Thank you very much again for your reply. I appreciate the time you have spent in the laboratory and understand your concerns. As it appears to me your biotin-labeled secondary and the appropriate detection system are indeed working and it is regrettable the results have not been successful with the Progerin antibody yet. Reviewing the details, I am sorry there are no further tips to provide on this occasion to help improve the results. I can suggest you have regrettably received a bad vial of ab66587. I apologise for the inconvenience and am pleased to offer you a free of charge replacement (with either a new vial or any other primary antibody of your choice) or credit note in compensation. Thank you for your cooperation. I look forward to hearing from you with details of how you would like to proceed.

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    Abcam Scientific Support

    Answered on Dec 19 2011

    Question

    Dear Sir/madam, Thank you very much for your kind attention. These are the answers of all question: 1- No results, I mean that I obtain no bands at all. 2- a-The protein was denatured first. b- 5% milk c- 1:100 dilution d- Anti-mouse IgGBiotin secondary Abcam ab6788 Goat Thank you very much again with my best regards.

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    Abcam community

    Verified customer

    Asked on Dec 19 2011

    Answer

    Thank you very much for confirming these details. Before proceeding with this case, I would appreciate if you could confirm which detection system was used with the biotin-labeled secondary antibody ab6788: Have you used a HRP-conjugated anti-biotin antibody or HRP-conjugated streptavidin, and is this working for other primary antibodies in your lab? I look forward to your reply.

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    Abcam Scientific Support

    Answered on Dec 19 2011

    Question

    Dear sir/madam, My supervisor ordered for me these Items: Anti-Hsp70 antibody (ab31010) and Anti-Progerin antibody [13A4] (ab66587) last month, the first one was working very well and I got good results but the second one the Anti-Progerin antibody [13A4] (ab66587) does not work, I tried it many times on these cells: Neuroblastoma cells, Astocytoma cells and monocytic leukaemia cells by doing western blotting with the use of antimouse antibody as it is recommended, I got no results. Previously, I did 2-D gel for Neuroblastoma cells and I got progerin protein by MALDI-TOF analysis, it should be present in these cells. I would be very grateful if you can help me solve this problem.

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    Abcam community

    Verified customer

    Asked on Dec 16 2011

    Answer

    Thank you for contacting us. I am sorry to hear you have been experiencing problems with one of our antibodies. The quality of our products is important to us and I would like to reassure you that we investigate all customer complaints. I would like to investigate this particular case further for you, and also obtain more information for our quality records. In order to proceed with this, I would appreciate if you could confirm some further details. Once we received this information, we would be happy to replace or refund the antibody for you, if it turns out that the antibody is not working as cited on the datasheet, as the problem has been reported within 6 months of purchase. 1) When you said you got no results, does it mean that you obtain no bands at all or that there are many unspecific bands and the specific one cannot be identified? 2) Could you please confirm some key details of the protocol: a) Under which conditions did you perform the Western blot (reduced denatured)? b) What did you use to block the membrane (5% milk or BSA)? c) Which dilutions of the primary antibody have you tested and at which temperature did you incubate? d) Which secondary antibody have you used and does it work for example with other primaries you use in your lab? I look forward to receiving your reply.

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    Abcam Scientific Support

    Answered on Dec 16 2011

    Question

    Dear Sir/Madam of abcam,   Hope you are having a great week!   We  have some questions about antibody: Anti-Progerin antibody [13A4] (ab66587). https://www.abcam.com/Progerin-antibody-13A4-ab66587.html From website, this antibody clone 13A4 can detect progerin with one clear band ~70KD.  Our lab recently bought one progerin antibody which is named 13A4D4, the western result show the strongest band  is between 64KD and 49KD marker instead of 70KD (pls see attachment) which made us hard to judge our experiment. Before ordering new progerin antibody from other companies, we are wondering if the 13A4D4 is same source as abcam anti-progerin (13A4) or not since they have very similar names. We’d like to ask if it’s possible we can get a small amount of test antibody from abcam to test if it works well on our experiments before we order large scale. We appreciate your reply and thank you very much.  

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    Abcam community

    Verified customer

    Asked on Nov 17 2011

    Answer

    Thank you for contacting us with your question about ab66587. I do not know the full history of the clones 13A4 and 13A4D4, however it is likely that one is a "subclone" of the other, meaning they are similar. Unfortunately we are not able to provide small sample sizes of our products, but we do fully guarantee this antibody to work in tested species and applications for up to 6 months after purchase. The band in the image that you sent is not too far from the expected molecular weight of 69-70 kDa. What kind of samples are these? I could only find testing data using lysates with tagged progerin, which may run slightly higher than the endogenous, untagged protein. Please let me know if you have any further questions, or if there is anything else that we can do for you, and I'll be happy to help.

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    Abcam Scientific Support

    Answered on Nov 17 2011

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