Name :
Recombinant Canine HE4/WFDC2 Protein (hFc Tag)
Biological Activity :
Background :
WAP four-disulfide core domain protein 2, also known as Epididymal secretory protein E4, Major epididymis-specific protein E4, Putative protease inhibitor WAP5, WFDC2 and HE4, is a secreted protein that contains two WAP domains. WFDC2 / HE4 is a member of a family of stable 4-disulfide core proteins that are secreted at high levels. It is expressed in a number of normal tissues, including male reproductive system, regions of the respiratory tract and nasopharynx. It is highly expressed in a number of tumors cells lines, such ovarian, colon, breast, lung and renal cells lines. Initially described as being exclusively transcribed in the epididymis. WFDC2 may be a component of the innate immune defences of the lung, nasal and oral cavities and suggest that WFDC2 functions in concert with related WAP domain containing proteins in epithelial host defence. WFDC2 re-expression in lung carcinomas may prove to be associated with tumour type and should be studied in further detail. Mammary gland expression of tammar WFDC2 during the course of lactation showed WFDC2 was elevated during pregnancy, reduced in early lactation and absent in mid-late lactation. WFDC2 / HE4 can undergo a complex series of alternative splicing events that can potentially yield five distinct WAP domain containing protein isoforms.
Biological Activity :
Testing in progress
Expression Host :
Canine
Source :
HEK293 Cells
Tag :
Protein Accession No. :
NP_001003241.1
NCBI Gene ID :
Synonyms :
Synonyms :
WAP four-disulfide core domain 2
Amino Acid Sequence :
Molecular Weight :
The recombinant canine WFDC2/Fc is a disulfide-linked homodimer. The reduced monomer comprises 338 amino acids and has a predicted molecular mass of 37.3 kDa. The apparent molecular mass of the protein is approximately 48 kDa in SDS-PAGE under reducing conditions.
Purity :
> 95 % as determined by SDS-PAGE
State of Matter :
Product Concentration :
Storage and Stability :
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃. Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Endotoxin Level :
< 1.0 EU per μg of the protein as determined by the LAL method
Protein Construction :
A DNA sequence encoding the canine WFDC2 (NP_001003241.1)(Met1-Phe124) was expressed, fused with the Fc region of human IgG1 at the C-terminus.
Buffer Solution :
Lyophilized from sterile PBS, pH 7.4.Please contact us for any concerns or special requirements. Normally 5 % – 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hardcopy of datasheet.
Shipping :
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Redissolution :
A hardcopy of datasheet with reconstitution instructions is sent along with the products. Please refer to it for detailed information.
Synonyms :
References & Citations :
Bingle,L. et al., 2002, Oncogene. 21 (17):2768-73. Hellström,I. et al., 2003, Cancer Res. 63 (13):3695-700. Bingle,L. et al., 2006, Respir Res. 7 : 61. Galgano,M.T. et al., 2006, Mod Pathol.19 (6):847-53. Sharp,J.A. et al., 2007, Evol Dev. 9 (4): 378-92.
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