SRP3013

Beta D-4 human

recombinant, expressed in E. coli, ≥98% (HPLC), suitable for cell culture

• Sinónimos: Beta-defensin 104, DEFB104A
• Código UNSPSC: 12352202
• NACRES: NA.32

Propiedades

• origen biológico: human
• recombinante: expressed in E. coli
• Ensayo: ≥98% (HPLC)
• Formulario: lyophilized
• mol peso: 6.0 kDa
• envase: pkg of 20 μg
• técnicas: cell culture | mammalian: suitable
• impurezas: <0.1 EU/μg endotoxin, tested
• color: white to off-white
• idoneidad: suitable for
• Nº de acceso UniProt: Q8WTQ1
• espectro de actividad antibiótica: fungi; mycobacteria; viruses
• Modo de acción: cell membrane | interferes
• Condiciones de envío: wet ice
• temp. de almacenamiento: −20°C
• Información sobre el gen: human ... DEFB104A(140596)

Descripción

Descripción general

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. The α-defensins are distinguished from the β-defensins by the pairing of their three disulfide bonds. To date, four human b-defensins have been identified; BD-1, BD-2, BD-3 and BD-4. The β-defensin proteins are expressed as the C-terminal portion of precursors and are released by proteolytic cleavage of a signal sequence. 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. BD-4 is expressed in testis, stomach, uterus, neutrophils, thyroid, lung and kidney. In addition to its direct antimicrobial activities, BD-4 is chemoattractant towards human blood monocytes. Recombinant human BD-4 is a 6.0 kDa protein containing 50 amino acid residues.

Acciones bioquímicas o fisiológicas

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-4 is a 6.0 kDa protein containing 50 amino acid residues.

Secuencia

EFELDRICGY GTARCRKKCR SQEYRIGRCP NTYACCLRKW DESLLNRTKP

Forma física

Lyophilized from 10 mM Acetic Acid.

Reconstitución

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.

Información de seguridad

• Pictogramas: GHS07
• Palabra de señalización: Warning
• Frases de peligro: H315,H319
• Consejos de prudencia: P264 - P280 - P302 + P352 - P305 + P351 + P338 - P332 + P313 - P337 + P313
• Clasificaciones de peligro: Eye Irrit. 2 - Skin Irrit. 2
• Código de clase de almacenamiento: 11 - Combustible Solids
• Clase de riesgo para el agua (WGK): WGK 3
• Punto de inflamabilidad (°F): Not applicable
• Punto de inflamabilidad (°C): Not applicable