Cat. No. 302 411 |
100 µg purified IgM, lyophilized. Azide was added before lyophilization. For reconstitution add 100 µl H2O to get a 1mg/ml solution in PBS. Then aliquot and store at -20°C to -80°C until use. Antibodies should be stored at +4°C when still lyophilized. Do not freeze! |
Applications | |
Clone | 88B6 |
Subtype | IgM (κ light chain) |
Immunogen | Synthetic peptide corresponding to AA 419 to 435 from human α-tubulin 4A (UniProt Id: P68366) |
Reactivity |
Reacts with: human (P68366), rat (Q5XIF6), mouse (P68368). Other species not tested yet. |
Specificity | Specific for α-tubulin. K.O. validated PubMed: 36340693 |
Matching control protein/peptide | 302-21P |
Data sheet | 302_411.pdf |
Microtubules are involved in a wide variety of cellular activities ranging from mitosis and transport events to cell movement and the maintainance of cell shape.
Tubulin itself is a globular protein which consists of two polypeptides, α-tubulin and β-tubulin. α- and β-tubulin dimers are assembled to 13 protofilaments that form a microtubule of 22 nm diameter.
Assembled microtubules can be detyrosinated by a carboxypeptidaseS called vasohibins / SVBPs. Detyrosinated α-tubulin is referred to as Glu-α-tubulin and occurs for exemple in neurons. This reaction can be reverted by Tubulin tyrosine ligase (TTL) that ads a C-terminal tyrosin to Glu α-tubulin.
Another post-translational modification of α-tubulin is C-terminal polyglutamylation which is also characteristic for microtubules in neuronal cells and the mitotic spindle. A third variant of detyrosinated α-tubulin is Δ2-tubulin which lacks the C-terminal glutamic acid. It cannot be tyrosinated by TTL and is one of the dominant α-tubulin isoforms in neurons.