Drebrin 1 Antibody [Alexa Fluor® 647]

• Reactivity: Hu
• Applications: WB, ICC/IF
• Clonality: Polyclonal
• Host: Sheep
• Conjugate: Alexa Fluor 647

Drebrin 1 Antibody [Alexa Fluor® 647] Summary

• Immunogen: E. coli-derived recombinant human Drebrin 1
  Asn482-Asp649 (Ser553Pro)
  Accession # Q16643
• Specificity: Detects human Drebrin 1 in direct ELISAs and Western blots.
• Isotype: IgG
• Clonality: Polyclonal
• Host: Sheep
• Purity Statement: Antigen Affinity-purified

Applications/Dilutions

• Dilutions:
  • Immunocytochemistry
  • Western Blot

Packaging, Storage & Formulations

• Storage: Protect from light. Do not freeze. 12 months from date of receipt, 2 to 8 °C as supplied
• Buffer: Supplied 0.2mg/ml in 1X PBS with RDF1 and 0.09% Sodium Azide

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Drebrin 1 Antibody [Alexa Fluor® 647]

• D0S117E
• DBN1
• Developmentally-regulated brain protein
• DKFZp434D064
• Drba
• Drebrin 1
• Drebrin A
• Drebrin E
• Drebrin E2
• drebrin
• drebrin-1

Background

Drebrin 1 (DBN-1 [developmentally-regulated brain protein1]; also drebrin-E/E2 [Embryonic]) is an intracellular member of the ADF-H (actin-depolymerizing factor-H) family of actin binding proteins. Although its predicted MW is 72 kDa, it runs anomalously at 115-116 kDa in SDS-PAGE. It is expressed by neurons, gastric Parietal cells, astrocytes, distal convoluted tubule epithelium and proton-secreting intercalated cells of the renal collecting duct. Drebrin 1 interacts with multiple partners near the membrane. It links connexin-43 and F-actin, thereby stabilizing membrane gap junctions. It also binds to EB3 (end-binding protein 3) on microtubules, facilitating actin-microtubule interactions. Human Drebrin 1 is 649 amino acids (aa) in length. It contains one actin depolymerizing homology domain (aa 3-134), an actin-binding region (≈ aa 150-300), and two HOMER binding motifs (aa 539-543 and 617-621). There are at least 10 utilized Ser/Thr phosphorylation sites and one utilized Tyr phosphorylation site. Alternative splicing generates drebrin-A (Adult), a 124-126 kDa isoform that contains a 46 aa insert after Gly319. Drebrin-A is found in neurons and possibly podocytes, and is associated with dendritic spines where it inhibits the interaction of F-actin with alpha -actinin and tropomyosin. This favors the generation of excitatory impulses in neurons. Three other potential isoform variants are noted. One utilizes an alternative start site at Met64, a second shows a 60 aa substitution for aa 1-110, and a third contains a 28 aa substitution for aa 4-29. Over aa 482-649, human Drebrin 1 shares 84% aa sequence identity with mouse Drebrin 1.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.