SRP3126
NP-1 Peptide
≥98% (HPLC), human recombinant, expressed in E. coli, suitable for cell culture
Synonym(s):
Cryptdin, HNP-1, Neutrophil Peptide-1, alpha Defensin-1
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About This Item
UNSPSC Code:
12352202
NACRES:
NA.32
Product Name
NP-1 human, recombinant, expressed in E. coli, ≥98% (SDS-PAGE), ≥98% (HPLC), suitable for cell culture
biological source
human
recombinant
expressed in E. coli
Assay
≥98% (HPLC)
≥98% (SDS-PAGE)
form
lyophilized
mol wt
3.4 kDa
packaging
pkg of 20 μg
technique(s)
cell culture | mammalian: suitable
impurities
<0.1 EU/μg endotoxin, tested
color
white to off-white
UniProt accession no.
antibiotic activity spectrum
fungi
mycobacteria
viruses
Mode of action
cell membrane | interferes
shipped in
wet ice
storage temp.
−20°C
Gene Information
human ... NRP1(8829)
General description
Chemical structure: peptide
Defensins (α and β) are cationic peptides with a broad spectrum of antimicrobial activity that comprise an important arm of the innate immune system. The α-defensins which include neutrophil peptides-1, -2 and -3, (NP-1, NP-2 and NP-3) are distinguished from the β-defensins by the pairing of their three disulfide bonds. Neutrophil-1 (NP-1) is expressed as the C-terminal portion of an inactive precursor protein, which also contains a 19 amino acid N-terminal signal sequence and a 45 amino acid polypeptide. The protein contains a six-cysteine motif that forms three intra-molecular disulfide bonds. It is a transmembrane glycoprotein. Recombinant human NP-1 is a 3.4kDa protein containing 30 amino acid residues.
Biochem/physiol Actions
Neutrophil peptide-1 (NP-1) exhibits antimicrobial activity. It also has a chemotactic function in dendritic cells. It has a role in the growth and metastasis of cancer cells. The protein acts as multifunctional co-receptor and interacts with various signaling cascades. NP-1 associates with epithelial growth factor (EGF) and its receptor (EGFR). It also interacts with hepatocyte growth factor (HGF) and its receptor c-Met.
Physical form
Lyophilized with no additives.
Preparation Note
Centrifuge the vial prior to opening. Reconstitute in water 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.
Other Notes
ACYCRIPACI AGERRYGYCI YQGRLWAFCC
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Regulatory Information
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Haiyan Jia et al.
Chembiochem : a European journal of chemical biology, 15(8), 1161-1170 (2014-04-29)
The interaction between VEGF-A and its neuropilin (NRP) receptors mediates a number of important biological effects. NRP1 and the related molecule NRP2 are widely expressed on multiple tumour types and throughout the tumour vasculature, and are emerging as critical molecules
Pavel Melicherčík et al.
Diagnostics (Basel, Switzerland), 10(1) (2020-01-16)
The α-defensins (AD) present in synovial fluid have been regarded as constituting the most accurate periprosthetic joint infection (PJI) biomarker. The methods most commonly used for estimating AD as a biomarker are the qualitative Synovasure® PJI tests, based on the
Neuropilin-1 is associated with clinicopathology of gastric cancer and contributes to cell proliferation and migration as multifunctional co-receptors.
Li L
Journal of Experimental & Clinical Cancer Research, 35, 16-16 (2016)
Antibacterial activity of human neutrophil defensin HNP-1 analogs without cysteines.
Varkey J and Nagaraj R
Antimicrobial Agents and Chemotherapy, 49(11), 4561-4566 (2005)
Juan Cong Dong et al.
Journal of cellular and molecular medicine, 19(9), 2286-2295 (2015-07-07)
The purpose of this study was to determine the correlation between over-expression of the neuropilin 1 (NRP1) gene and growth, survival, and radio-sensitivity of non-small cell lung carcinoma (NSCLC) cells. 3-[4,5-dimethylthylthiazol-2-yl]-2,5 diphenyltetrazolium broide (MTT) and colony assays were then performed
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