HE4 cDNA ORF Clone, Canine, C-DDK (Flag®) tag General Information
Full length Clone DNA of Canine WAP four-disulfide core domain 2 with C terminal Flag tag.
Enhanced CMV promoter
FLAG Tag Sequence: GATTACAAGGATGACGACGATAAG
T7( 5' TAATACGACTCACTATAGGG 3' )
BGH( 5' TAGAAGGCACAGTCGAGG 3' )
The plasmid is confirmed by full-length sequencing.
Antibiotic in E.coli
Antibiotic in Mammalian cell
Stable or Transient mammalian expression
Storage & Shipping
Each tube contains lyophilized plasmid.
The lyophilized plasmid can be stored at ambient temperature for three months.
**Sino Biological guarantees 100% sequence accuracy of all synthetic DNA constructs we deliver, but we do not guarantee protein expression in your experimental system. Protein expression is influenced by many factors that may vary between experiments or laboratories.**
HE4 Background Information
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 which 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.
WAP four-disulfide core domain 2
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.