Products:Neuroscience >> Cell Adhesion Proteins >> ECM Proteins
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Hola buenos días, |
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ANSWER: |
Gracias por contactarnos. |
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Hola , |
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ANSWER: |
Muchas gracias por tu respuesta. |
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ab3970 (Tenascin antibody [T2H5]) ab6393 (Tenascin antibody [BC-24]) ab7839 (Tenascin antibody [B324.1.]) Do these products recognize tenascin C? |
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Thank you for your patience. I have contacted the originators of ab3970, ab6393, and ab7839 and have received the following replies: ab3970 - This antibody reacts with tenascin; it was raised against mammary tumor of human origin. Tenascin-C could be the alternate name of tenascin: Tenascin-C (Tn) is the best characterized member of the tenascin family of cell-adhesion proteins - Alternate names of tenascin C: tenascin; cytotactin; hexabrachion. ab6393 - The epitope recognized by this antibody is common to all Tenascin isoforms. Thus, the antibody will recognize Ten-C along with the other isoforms of tenascin. ab7839 - No reply. I have recontacted them. I hope this information helps. If I receive additional information on ab7839, I will e-mail it to you. Please do not hesitate to contact us again if you have additional questions.
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The customer is looking for antibodies to use in IHC-P (IF) on chicken embryos against: -tanascin -myosin heavy chain |
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ANSWER: |
Thank you for your recent phone call and your interest in our tenascin and myosin heavy chain antibodies. As we discussed we do not currently have antibodies which have been tested in chicken tissue and the homology searches revealed that for tenascin there is 64% identity between the human precursor form (immunogen of our tenascin antibodies) and the chicken precursor form. This is not extremely high and therefore our antibodies do not have high chances of cross reacting with chicken tissue. You may find better antibodies for chicken tissue on biocompare.com or at the bottom of the search for tenascin on our website a link to the World's antibody gateway which looks at 149 other online antibody companies. I am trying to find out more information about the immunogen sequence for the myosin heavy chain antibodies to work out the homology between the immunogen and the chicken protein, my apologies for the delay. |
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1- Order details Batch numbers: 33084 and 83588 Purchase order numbers: 43035 and 58853 Antibody storage conditions: 2-4 C 2- No staining 3- Human gastroentistinal tract 4- 70% ethanol ( not cold ) 5- Yes, Both; enzymatic method and heat mediated technique 6- I used peroxidase block 5 min. nothing else 7- Mouse, 50,100,200, ChemMate antibody diluent, Different incubation times and temp. e.g. 30 min at room temp, one hour at 37 C, overnight at 2-4 C, Washing with PBS. 8- Peroxidase labeiied polymer conjugated to goat anti-mouse immunoglobulins in Tris-HCL buffer containing stabilizing protein and an anti-microbial agent, incubated for 30 min at RT, then washed with PBS . All the steps are according to the instruction provided by DakoCytomation 9- Substrate-chromoge(DAB) for 5 min. at RT 12- Tissues with normal and thick basement membrane were used 13- Seven times, No staining of the basement membrane and sometimes with background, Changing the incubation time and temp. and using antigen retrival steps, manual in six times and automatic once I would be grateful if I could send you photos of my staining for your expert assessment Waiting for your expert and valuable opinion |
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ANSWER: |
Thank you for the details of your protocol, my apologies for the delay due to a long bank holiday weekend in the UK. My colleague Tanya is away and I will do my best to help you. This antibody has been tested in IHC on formalin-fixed paraffin embedded tissue, I would therefore suggest using formalin fixation as it is possible that ethanol fixation is not sufficient to fix the proteins. Please also use PBST with triton to dilute the primary and secondary antibodies. You may also find the references below useful: Gulubova M Immunohistochemical localization of collagen type III and type IV, laminin, tenascin and alpha-smooth muscle actin (alphaSMA) in the human liver in peliosis. Pathol Res Pract 198:803-12 (2002). PubMed: 12608657 Ioachim E et al. Immunohistochemical expression of extracellular matrix components tenascin, fibronectin, collagen type IV and laminin in breast cancer: their prognostic value and role in tumour invasion and progression. Eur J Cancer 38:2362-70 (2002). PubMed: 12460779 Faustino AM et al. Tenascin expression in normal, hyperplastic, dysplastic and neoplastic canine mammary tissues. J Comp Pathol 126:1-8 (2002). PubMed: 11814316 Tokes AM et al. Immunohistochemical localisation of tenascin in invasive ductal carcinoma of the breast. Anticancer Res 19:175-9 (1999). PubMed: 10226540 Please do not hesitate to contact us if you still have problems,
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Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"
ab3970 staining paraffin embedded tissue sections.
Anti-Tenascin C antibody [T2H5] (ab3970) at 1 µg/ml + U2OS (Human osteosarcoma cell line) Whole Cell Lysate at 10 µg
Secondary
Goat polyclonal Secondary Antibody to Mouse IgG - H&L (HRP), pre-adsorbed (ab97040) at 1/5000 dilution
developed using the ECL technique
Performed under reducing conditions.
Observed band size : 265 kDa (why is the actual band size different from the predicted?)
Additional bands at : 34 kDa. We are unsure as to the identity of these extra bands.
Exposure time : 20 minutes
Tenascin C contains an exstensive number of potential glycosylation sites (SwissProt) which may explain its migration at a higher molecular weight than predicted.
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