Technical Data
BD1 (beta Defensin-1)
Antimicrobial peptides are a common mechanism of host defense utilized by a variety of species, from insects to humans. Defensins are a large family of broad-spectrum antimicrobial peptides, identified originally in leukocytes of rabbits and humans. Defensins, cationic/polar peptides (30-35aa; 3-4kD), are distinguished by conserved tri-disulfides and a largely b-Sheet structure. Defensins, expressed at the cell surface, have been hypothesized to function as a biochemical barrier against microbial infection by inhibiting colonization of the epithelium by wide range of pathogenic microorganisms. In leukocytes, these peptides are stored in cytoplasmic granules and are released into phagolysosomes where they contribute to the killing of engulfed microorganisms. The genes encoding human alpha- and beta-Defensins are clustered in a contiguous segment of chromosome 8p23. Defensins are classified into two families designated alpha and beta based on distinctive, although similar, tri-disulfide linkages in the peptides. beta-Defensins are slightly larger and differ in the position and arrangement of 3 disulfides. In humans, six alpha-Defensin (cryptidins), HD1-6 (HD1-4 are also known as HNP1-4 for Human Neutrophil Peptides), and two beta-Defensins, HBD-1 and HBD-2, have been identified to date. Rat (RBD-1 and RBD-2) and mouse (MBD1-4) homologs of the human beta-Defensin have also been identified. alpha-Defensins are encoded by genes designated DEFA1-6, whereas human b-Defensins are encoded by the DEFB1 and DEFb2 genes.

Suitable for use in ELISA and Western Blot. Other applications not tested.

Recommended Dilutions:
ELISA: 1:10,000-50,000; Control peptide can be used to coat plates at 1ug/ml.
Western Blot: 1:1000-1:5000
Optimal dilutions to be determined by the researcher.

Recommended Control Peptide:
B0900-09A: BD1, Control Peptide (beta Defensin-1).

Storage and Stability:
May be stored at 4C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20C. Aliquots are stable for 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
50ul-20CBlue IceRabbit
Not determined
Peptide corresponding to 16aa from near the N-terminus of mature mouse BD1 conjugated to KLH. Species Sequence Homology: rat - 87%. Shows no significant homology with human BD1.
Supplied as a liquid in PBS, 0.05% sodium azide.
Recognizes mouse BD1 (beta Defensin-1).
Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.
1. Huttner, K.M., et al., FEBS Lett. 413: 45-49 (1997). 2. Liu, L., et al., Genomics 43: 316-320 (1997). 3. Bartels, J., et al., Nature 387: 861 (1997). 4. Ganz, T., Science 286: 420 (1999). 5. Yang, D., et al., Science 286: 525 (1999).