Beta D-1 (47 aa) human

NA.32

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 (36a.a.), a propeptide region. b-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 5.0 kDa protein containing 47 amino acid residues.
Chemical structure: peptide

Defensins (alpha and beta) are cationic peptides with a broad spectrum of antimicrobial activity that comprise an important arm of the innate immune system. Recombinant human BD-1 is a 5.0 kDa protein containing 47 amino acid residues.

GNFLTGLGHR SDHYNCVSSG GQCLYSACPI FTKIQGTCYR GKAKCCK

Lyophilized from 10 mM Sodium Citrate, pH 4.0.

Centrifuge the vial prior to opening. Reconstitute in 10 mM Acetic Acid to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8℃ for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20℃ to -80℃.

human

expressed in E. coli

≥98% (HPLC)
≥98% (SDS-PAGE)

lyophilized

5.0 kDa

pkg of 20 μg

cell culture | mammalian: suitable

<0.1 EU/μg endotoxin, tested

white to off-white

P60022

fungi
mycobacteria
viruses

cell membrane | interferes

wet ice

−20℃

human ... DEFB1(1672)

13 - Non Combustible Solids

WGK 3