Beta D-1 (36 aa) human
SIGMA/SRP3011 - recombinant, expressed in E. coli, ≥98% (SDS-PAGE), ≥98% (HPLC), suitable for cell culture
Synonym: DEFB1; beta-Defensin-1
Product Type: Chemical
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| antibiotic activity spectrum | fungi |
| mycobacteria | |
| viruses | |
| assay | ≥98% (HPLC) |
| ≥98% (SDS-PAGE) | |
| biological source | human |
| color | white to off-white |
| form | lyophilized |
| impurities | <0.1 EU/μg endotoxin, tested |
| mode of action | cell membrane | interferes |
| mol wt | 7.8 kDa |
| packaging | pkg of 20 μg |
| recombinant | expressed in E. coli |
| shipped in | wet ice |
| storage temp. | −20°C |
| technique(s) | cell culture | mammalian: suitable |
| UniProt accession no. | P60022   |
| Biochem/physiol Actions: | 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 3.9 kDa protein containing 36 amino acid residues. |
| General description: | Chemical structure: peptide |
| General description: | 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 b-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. β-defensins contain a six-cysteine motif that forms three intra-molecular disulfide bonds. b-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. |
| Other Notes: | DHYNCVSSGG QCLYSACPIF TKIQGTCYRG KAKCCK |
| Physical form: | Lyophilized from 10 mM Acetic Acid. |
| Preparation Note: | 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°C 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°C to -80°C. |
| Symbol |  GHS07 |
| Signal word | Warning |
| Hazard statements | H315 - H319 |
| Precautionary statements | P302 + P352 - P305 + P351 + P338 |
| Hazard Codes | Xi |
| Risk Statements | 36/38 |
| Safety Statements | 26 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥98% (HPLC); ≥98% (SDS-PAGE) |
| Storage Temp. | −20°C |
| UNSPSC | 12352202 |