Monoclonal anti-mouse laminin antibodies: AL-1 reacts with laminin alpha1 chain, AL-2 with laminin beta1 chain, and AL-4 with the coiled-coil domain of laminin beta1 chain. |
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Authors: | Susanne Schéele Takako Sasaki Anna Arnal-Estapé Madeleine Durbeej Peter Ekblom |
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Institution: | Department of Experimental Medical Science, BMC B12, Lund University, Lund, Sweden. Susanne.Scheele@med.lu.se |
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Abstract: | We analyzed the reactivity of three different commercially available rat monoclonal antibodies raised against mouse laminin-alpha1beta1gamma1 (laminin-111), AL-1, AL-2, and AL-4. Using ELISA assays, Western blot analysis and immunostainings we present refined epitope maps for these three laminin monoclonals. AL-1 reacted, as predicted with laminin alpha1 chain. AL-4 has also been marketed as an alpha1 chain specific probe, but we show here that AL-4 detects mouse laminin beta1 chain, in the distal part of the coiled-coil region. AL-2 was predicted to react with all three chains near the cross-region, but seems to primarily react with laminin beta1 chain. |
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