Recombinant Human BD-2
產(chǎn)品編號
產(chǎn)品名稱
產(chǎn)品包裝
產(chǎn)品價格
XY5804-1mg
1mg
15444.00元
Species
Gene ID
Accession
Source
Length
MW
Tag
Human
1673
O15263
E. coli
41aa
4.3kDa
－
About this Antibody
Name
Recombinant Human BD-2 (Recombinant Human β-defensin 2; rHuBD-2)；重組人β-防御素2
Synonyms
BD-2; DEFB2; DEFB4A; DEFB4B; HBD-2; SAP-1; Beta-defensin 2; DEFB-2; DEFB2DEFB102; DEFB4beta-defensin 4A; Defensin, beta 2Skin-antimicrobial peptide 1; defensin, beta 4; defensin, beta 4A; HBD-2; hBD-2; SAP1BD-2
Purity
>98% by SDS-PAGE and HPLC analyses.
Biological Activity
Fully biologically active when compared to standard. The biological activity determined by a chemotaxis bioassay using immature human dendritic cells is in a concentration range of 10-100ng/ml.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Formulation
Lyophilized from a 0.2μm filtered concentrated solution in 20mM PB, pH7.4, 130mM NaCl.
Endotoxin
Less than 1EU/μg of rHuBD-2 as determined by LAL method.
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0mg/ml. Stock solutions should be apportioned into working aliquots and stored at ≤-20℃. Further dilutions should be made in appropriate buffered solutions.
Category
Cytokine
Background
Defensins (alpha and beta) are cationic peptides with antimicrobial activity against Gram-negative and Gram-positive bacteria, fungi, and enveloped viruses. They are 2-6kDa proteins and take important roles in innate immune system. On the basis of their size and pattern of disulfide bonding, mammalian defensins are classified into alpha, beta and theta categories. β-Defensins contain a six-cysteine motif that forms three intra-molecular disulfide bonds. Four human β-defensins have been identified and they are expressed on some leukocytes and at epithelial surfaces. Because β-defensins is cationic peptides, they can therefore interact with the membrane of invading microbes, which are negative due to lipopolysaccharides (LPS) and lipoteichoic acid (LTA) found in the cell membrane. Especially, they have higher affinity to the binding site compared to Ca2+ and Mg2+ ions. Furthermore, they can affect the stability of the membrane.
Amino Acid Sequence
GIGDPVTCLK SGAICHPVFC PRRYKQIGTC GLPGTKCCKK P
包裝清單:
包裝
XY5804-5μg
5μg
XY5804-20μg
20μg
XY5804-100μg
100μg
-
說明書
1份
保存條件: -20℃或更低溫度保存，至少一年有效。由于蛋白的每次凍融均會引起部分失活，所以**配制成相應(yīng)濃度的儲存液后(請根據(jù)產(chǎn)品簡介中Reconstitution一欄的信息配制儲存液)，須分裝后-20℃或更低溫度凍存，以避免反復(fù)凍融。 注意事項: 由于有些塑料管壁對某些蛋白有較強(qiáng)的吸附作用，溶液中的蛋白很容易粘附在管壁上，并且粘附后的蛋白很難與管壁分離。而載體蛋白(Carrier protein，如0.1% BSA等)的主要作用是預(yù)先封閉塑料管壁上的蛋白結(jié)合位點，使細(xì)胞因子或重組蛋白不會粘附于管壁。所以一定要使用產(chǎn)品簡介中Reconstitution一欄的信息配制儲存液。 本產(chǎn)品**于專業(yè)人員的科學(xué)研究用，不得用于臨床診斷或**，不得用于食品或藥品，不得存放于普通住宅內(nèi)。 為了您的**和健康，請穿實驗服并戴一次性手套操作。