Recombinant Human Hydroperoxide Isomerase Aloxe3 (ALOXE3) Protein (His)

Name: Recombinant Human Hydroperoxide Isomerase Aloxe3 (ALOXE3) Protein (His)
Brand: Beta LifeScience
SKU: BLC-00347P
Availability: InStock

Greater than 90% as determined by SDS-PAGE.

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Product Overview

Description	Recombinant Human Hydroperoxide Isomerase Aloxe3 (ALOXE3) Protein (His) is produced by our E.coli expression system. This is a full length protein.
Purity	Greater than 90% as determined by SDS-PAGE.
Uniprotkb	Q9BYJ1
Target Symbol	ALOXE3
Species	Homo sapiens (Human)
Expression System	E.coli
Tag	C-6His
Target Protein Sequence	MAVYRLCVTTGPYLRAGTLDNISVTLVGTCGESPKQRLDRMGRDFAPGSVQKYKVRCTAELGELLLLRVHKERYAFFRKDSWYCSRICVTEPDGSVSHFPCYQWIEGYCTVELRPGTARTICQDSLPLLLDHRTRELRARQECYRWKIYAPGFPCMVDVNSFQEMESDKKFALTKTTTCVDQGDSSGNRYLPGFPMKIDIPSLMYMEPNVRYSATKTISLLFNAIPASLGMKLRGLLDRKGSWKKLDDMQNIFWCHKTFTTKYVTEHWCEDHFFGYQYLNGVNPVMLHCISSLPSKLPVTNDMVAPLLGQDTCLQTELERGNIFLADYWILAEAPTHCLNGRQQYVAAPLCLLWLSPQGALVPLAIQLSQTPGPDSPIFLPTDSEWDWLLAKTWVRNSEFLVHENNTHFLCTHLLCEAFAMATLRQLPLCHPIYKLLLPHTRYTLQVNTIARATLLNPEGLVDQVTSIGRQGLIYLMSTGLAHFTYTNFCLPDSLRARGVLAIPNYHYRDDGLKIWAAIESFVSEIVGYYYPSDASVQQDSELQAWTGEIFAQAFLGRESSGFPSRLCTPGEMVKFLTAIIFNCSAQHAAVNSGQHDFGAWMPNAPSSMRQPPPQTKGTTTLKTYLDTLPEVNISCNNLLLFWLVSQEPKDQRPLGTYPDEHFTEEAPRRSIAAFQSRLAQISRDIQERNQGLALPYTYLDPPLIENSVSI
Expression Range	1-711aa
Protein Length	Full Length
Mol. Weight	87.4 kDa
Research Area	Cell Biology
Form	Liquid or Lyophilized powder
Buffer	Liquid form: default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. Lyophilized powder form: the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution	Briefly centrifuged the vial prior to opening to bring the contents to the bottom. Reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL. It is recommended to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. The default final concentration of glycerol is 50%.
Storage	1. Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. 2. Avoid repeated freeze-thaw cycles. 3. Store working aliquots at 4°C for up to one week. 4. In general, protein in liquid form is stable for up to 6 months at -20°C/-80°C. Protein in lyophilized powder form is stable for up to 12 months at -20°C/-80°C.
Notes	Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Target Details

Target Function	Non-heme iron-containing lipoxygenase which is atypical in that it displays a prominent hydroperoxide isomerase activity and a reduced lipoxygenases activity. The hydroperoxide isomerase activity catalyzes the isomerization of hydroperoxides, derived from arachidonic and linoleic acid by ALOX12B, into hepoxilin-type epoxyalcohols and ketones. In presence of oxygen, oxygenates polyunsaturated fatty acids, including arachidonic acid, to produce fatty acid hydroperoxides. In the skin, acts downstream of ALOX12B on the linoleate moiety of esterified omega-hydroxyacyl-sphingosine (EOS) ceramides to produce an epoxy-ketone derivative, a crucial step in the conjugation of omega-hydroxyceramide to membrane proteins. Therefore plays a crucial role in the synthesis of corneocytes lipid envelope and the establishment of the skin barrier to water loss. In parallel, it may have a signaling function in barrier formation through the production of hepoxilins metabolites. Plays also a role in adipocyte differentiation through hepoxilin A3 and hepoxilin B3 production which in turn activate PPARG. Through the production of hepoxilins in the spinal cord, it may regulate inflammatory tactile allodynia.
Subcellular Location	Cytoplasm.
Protein Families	Lipoxygenase family
Database References	HGNC: 13743 OMIM: 606545 KEGG: hsa:59344 STRING: 9606.ENSP00000314879 UniGene: Hs.232770
Associated Diseases	Ichthyosis, congenital, autosomal recessive 3 (ARCI3)
Tissue Specificity	Predominantly expressed in skin.

Gene Functions References

Case Report: ALOXE3 mutation causing congenital ichthyosis and recurrent eczema. PMID: 27868147
In summary, we have identified three novel sequence variants, one in TGM1 and two in ALOXE3, in three consanguineous families segregating lamellar ichthyosis and congenital ichthyosiform erythroderma types of autosomal recessive congenital ichthyosis. PMID: 26578203
Case Report: homozygous ALOXE3 mutation causing autosomal recessive congenital ichthyosis. PMID: 25423909
Loss-of-function mutations in the LOX genes ALOX12B and ALOXE3 have been found to represent the second most common cause of autosomal recessive congenital ichthyosis. [review] PMID: 23954555
This review covers the background to discovery of the two key lipoxygenases (LOX) involved in epidermal barrier function, 12R-LOX and eLOX3. [review] PMID: 24021977
Autosomal recessive congenital ichthyosis patients with NIPAL4 mutations and abnormal ichthyin expression showed increased 12R-LOX and eLOX-3 staining and a colocalization signal of these LOXs that was three times the normal intensity. PMID: 22622417
On the role of molecular oxygen in lipoxygenase activation: comparison and contrast of epidermal lipoxygenase-3 with soybean lipoxygenase-1. PMID: 20923767
Dioxygenase activity of epidermal lipoxygenase-3 unveiled: typical and atypical features of its catalytic activity with natural and synthetic polyunsaturated fatty acids. PMID: 20921226
ALOX12B mutations are the leading cause of self-improving collodion ichthyosis in Scandinavia, followed by ALOXE3 mutations, and TGM1 mutations PMID: 19890349
Lipoxygenase-3 (ALOXE3) and 12(R)-lipoxygenase (ALOX12B) are mutated in non-bullous congenital ichthyosiform erythroderma (NCIE) linked to chromosome 17p13.1. PMID: 11773004
eLOX-3 hydrolase functions in the normal process of skin differentiation, and that the loss of function mutations are the basis of the LOX-dependent form of Non-bullous congenital ichthyosiform erythroderma. PMID: 15629692
The substrate preference of mouse eLOX3 and the unique occurrence of an 8S-LOX enzyme in mouse skin point to a potential LOX pathway for the production of epoxyalcohol in murine epidermal differentiation. PMID: 17045234
Formation of a ligand for the nuclear receptor PPARalpha may be one possibility by which 12R-LOX and eLOX3 contribute to epidermal differentiation. PMID: 17436029
mutation hotspots in ALOXE3 and allelic heterogeneity in ALOX12B may have roles in autosomal recessive congenital ichthyosis PMID: 19131948

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.