This antibody is purified through a protein A column, followed by peptide affinity purification.
Immunogen
This CCK4 (PTK7) antibody is generated from rabbits immunized with a KLH conjugated synthetic peptide between 21-52 amino acids from the N-terminal region of human CCK4 (PTK7).
Purified polyclonal antibody supplied in PBS with 0.09 % (W/V) sodium azide.
Preservative
Sodium azide
Precaution of Use
This product contains Sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
Storage
4 °C,-20 °C
Storage Comment
Maintain refrigerated at 2-8 °C for up to 6 months. For long term storage store at -20 °C in small aliquots to prevent freeze-thaw cycles.
Expiry Date
6 months
Wang, Li, Yin, Wang, Wang, Wei, Guo, Ma, Shi, Zhou, Wang: "PTK7 protein is decreased in epithelial ovarian carcinomas with poor prognosis." in: International journal of clinical and experimental pathology, Vol. 7, Issue 11, pp. 7881-9, (2014) (PubMed).
CCK4 may function as a cell adhesion molecule. Although it belongs to the insuline receptor subfamily of the Tyr protein kinases, it likely lacks the catalytic activity of a tyrosine kinase. It may be connected to the pathophysiology of colon carcinomas and/or may represent a tumor progression marker. This Type I membrane protein is highly expressed in lung, liver, pancreas, kidney, placenta and melanocytes, but weakly expressed in thyroid gland, ovary, brain, heart and skeletal muscle, and not in colon. It is also expressed in erythroleukemia cells.