BD-1 Recombinant Protein

BD1, HBD1, DEFB-1, DEFB101, BD1, Beta-defensin 1, Defensin, beta 1, BD-1

Defensins (alpha and beta) are cationic peptides with a broad spectrum of antimicrobial activity that comprise an important arm of the innate immune system. The α-defensins are distinguished from the β-defensins by the pairing of their three disulfide bonds. To date, four human β-defensins have been identified; BD-1, BD-2, BD-3 and BD-4. β-defensins are expressed on some leukocytes and at epithelial surfaces. In addition to their direct antimicrobial activities, they are chemoattractant towards immature dendritic cells and memory T cells. The β-defensin proteins are expressed as the C-terminal portion of precursors and are released by proteolytic cleavage of a signal sequence and, in the case of BD-1 (36 a.a.), a propeptide region. β-defensins contain a six-cysteine motif that forms three intra-molecular disulfide bonds. β-Defensins are 3-5 kDa peptides ranging in size from 33-47 amino acid residues. Recombinant Human BD-1 is a 3.9 kDa protein containing 36 amino acid residues.

Determined by its ability to chemoattract CD34+ dendritic cells using a concentration range of 100.0 - 1000.0 ng/mL.

1672

defensin, beta 1

DEFB1

Homo sapiens

Lyophilized

NP_005209.1

4885181

Greater than 98% by SDS-PAGE gel and HPLC analyses.

Endotoxin level is less than 0.1 ng per μg (1EU/μg).

#N/A

E. coli

P60022