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Sequence Information

Defensin Alpha 1, Neutrophil (DEFa1) Recombinant Protein | DEFa1 recombinant protein

Recombinant Defensin Alpha 1, Neutrophil (DEFa1)

Gene Names
DEFA1B; HP1; HP-1; HNP-1
Applications
SDS-Page, Western Blot
Purity
> 90%
Synonyms
Defensin Alpha 1; Neutrophil (DEFa1); Recombinant Defensin Alpha 1; DEFa1 recombinant protein
Ordering
For Research Use Only!
Host
E Coli
Purity/Purification
> 90%
Concentration
Original Concentration: 200 ug/mL (varies by lot)
Applicable Applications for DEFa1 recombinant protein
Positive Control; Immunogen; SDS-PAGE; Western Blot (WB).

(May be suitable for use in other assays to be determined by the end user.)
Organism Species
Homo sapiens (Human)
Source
Prokaryotic expression
Residues
Glu20~Cys94
Tags
N-terminal His Tag
Subcellular Location
Secreted
Traits
Freeze-dried powder
Buffer formulation
20mM Tris, 150mM NaCl, pH8.0, containing 0.01% SKL, 5% Trehalose
Predicted isoelectric point
6.4
Predicted Molecular Mass
9.5kDa
Accurate Molecular Mass
16kDa as determined by SDS-PAGE reducing conditions
Phenomenon explanation
The possible reasons that the actual band size differs from the predicted are as follows:

1.Splice variants: Alternative splicing may create different sized proteins from the same gene.
2. Relative charge: The composition of amino acids may affects the charge of the protein.
3. Post-translational modification: Phosphorylation, glycosylation, methylation etc.
4. Post-translation cleavage: Many proteins are synthesized as pro-proteins, and then cleaved to give the active form.
5. Polymerization of the target protein: Dimerization, multimerization etc.
USAGE
Reconstitute in 20mM Tris, 150mM NaCl (pH8.0) to a concentration of 0.1-1.0 mg/mL. Do not vortex.
Preparation and Storage
Storage: Avoid repeated freeze/thaw cycles.
Store at 2-8ºC for one month.
Aliquot and store at -80ºC for 12 months.

Stability Test: The thermal stability is described by the loss rate. The loss rate was determined by accelerated thermal degradation test, that is, incubate the protein at 37°C for 48h, and no obvious degradation and precipitation were observed. The loss rate is less than 5% within the expiration date under appropriate storage condition.

Sequence Information

Sequence Information

SDS-Page

SDS-Page

Testing Data

Testing Data

NCBI and Uniprot Product Information

NCBI GI #
NCBI GeneID
NCBI Accession #
NCBI GenBank Nucleotide #
UniProt Accession #
NCBI Official Full Name
neutrophil defensin 1
NCBI Official Synonym Full Names
defensin, alpha 1B
NCBI Official Symbol
DEFA1B
NCBI Official Synonym Symbols
HP1; HP-1; HNP-1
NCBI Protein Information
neutrophil defensin 1
UniProt Protein Name
Neutrophil defensin 1
Protein Family
UniProt Gene Name
DEFA1
UniProt Synonym Gene Names
DEF1; DEFA2; MRS; HP-1; HP1; HP-2; HP2
UniProt Entry Name
DEF1_HUMAN

NCBI Description

Defensins are a family of antimicrobial and cytotoxic peptides thought to be involved in host defense. They are abundant in the granules of neutrophils and also found in the epithelia of mucosal surfaces such as those of the intestine, respiratory tract, urinary tract, and vagina. Members of the defensin family are highly similar in protein sequence and distinguished by a conserved cysteine motif. The protein encoded by this gene, defensin, alpha 1, is found in the microbicidal granules of neutrophils and likely plays a role in phagocyte-mediated host defense. Several alpha defensin genes are clustered on chromosome 8. This gene differs from defensin, alpha 3 by only one amino acid. This gene and the gene encoding defensin, alpha 3 are both subject to copy number variation. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2014]

Uniprot Description

defensin, alpha 1: Defensin 1 and defensin 2 have antibacterial, fungicide and antiviral activities. Has antimicrobial activity against Gram- negative and Gram-positive bacteria. Defensins are thought to kill microbes by permeabilizing their plasma membrane. Belongs to the alpha-defensin family.

Protein type: Secreted, signal peptide; Secreted

Chromosomal Location of Human Ortholog: 8p23.1

Cellular Component: extracellular matrix; extracellular space; Golgi lumen; extracellular region

Biological Process: defense response to Gram-positive bacterium; estrogen receptor signaling pathway; innate immune response in mucosa; killing of cells of another organism; antibacterial humoral response; innate immune response; immune response; chemotaxis; defense response to fungus; defense response to virus

Research Articles on DEFa1

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Product Notes

The DEFa1 defa1 (Catalog #AAA2009331) is a Recombinant Protein produced from E Coli and is intended for research purposes only. The product is available for immediate purchase. AAA Biotech's Defensin Alpha 1, Neutrophil (DEFa1) can be used in a range of immunoassay formats including, but not limited to, Positive Control; Immunogen; SDS-PAGE; Western Blot (WB). (May be suitable for use in other assays to be determined by the end user.). Researchers should empirically determine the suitability of the DEFa1 defa1 for an application not listed in the data sheet. Researchers commonly develop new applications and it is an integral, important part of the investigative research process. It is sometimes possible for the material contained within the vial of "Defensin Alpha 1, Neutrophil (DEFa1), Recombinant Protein" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.

Precautions

All products in the AAA Biotech catalog are strictly for research-use only, and are absolutely not suitable for use in any sort of medical, therapeutic, prophylactic, in-vivo, or diagnostic capacity. By purchasing a product from AAA Biotech, you are explicitly certifying that said products will be properly tested and used in line with industry standard. AAA Biotech and its authorized distribution partners reserve the right to refuse to fulfill any order if we have any indication that a purchaser may be intending to use a product outside of our accepted criteria.

Disclaimer

Though we do strive to guarantee the information represented in this datasheet, AAA Biotech cannot be held responsible for any oversights or imprecisions. AAA Biotech reserves the right to adjust any aspect of this datasheet at any time and without notice. It is the responsibility of the customer to inform AAA Biotech of any product performance issues observed or experienced within 30 days of receipt of said product. To see additional details on this or any of our other policies, please see our Terms & Conditions page.

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