생물학적 소스
human
재조합
expressed in E. coli
분석
≥98% (HPLC)
≥98% (SDS-PAGE)
형태
lyophilized
분자량
5.0 kDa
포장
pkg of 20 μg
기술
cell culture | mammalian: suitable
불순물
<0.1 EU/μg endotoxin, tested
색상
white to off-white
UniProt 수납 번호
항생제 활성 스펙트럼
fungi
mycobacteria
viruses
동작 모드
cell membrane | interferes
배송 상태
wet ice
저장 온도
−20°C
유전자 정보
human ... DEFB1(1672)
일반 설명
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 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.
생화학적/생리학적 작용
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.
서열
GNFLTGLGHR SDHYNCVSSG GQCLYSACPI FTKIQGTCYR GKAKCCK
물리적 형태
Lyophilized from 10 mM Sodium Citrate, pH 4.0.
재구성
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.
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
시험 성적서(COA)
제품의 로트/배치 번호를 입력하여 시험 성적서(COA)을 검색하십시오. 로트 및 배치 번호는 제품 라벨에 있는 ‘로트’ 또는 ‘배치’라는 용어 뒤에서 찾을 수 있습니다.
Science (New York, N.Y.), 286(5439), 498-502 (1999-10-16)
Analysis of rhesus macaque leukocytes disclosed the presence of an 18-residue macrocyclic, tridisulfide antibiotic peptide in granules of neutrophils and monocytes. The peptide, termed rhesus theta defensin-1 (RTD-1), is microbicidal for bacteria and fungi at low micromolar concentrations. Antibacterial activity
Current opinion in immunology, 14(1), 96-102 (2002-01-16)
During the past year, novel beta-defensins of mice and men have been identified, together with a novel defensin subfamily (the circular or 'theta' minidefensins) in primates. Insight into the evolution of defensins has been obtained from structural studies, and several
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