alexa CLONING AND AMPLIFICATION OF ZNF 217 GENE IN CANCER


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Review Article

CLONING AND AMPLIFICATION OF ZNF 217 GENE IN CANCER

Nafiseh Karoubi1, S.Murali Mohan2, C.Prabhakar Raju3 and Jayasimha Rayalu Daddam4*
  1. Department of Genetics and Biotechnology, Osmania University, Hyderabad, Telangana. India
  2. Department of Zoology, S.S.B.N Degree College, Anantapuram, Andhra Pradesh. India
  3. Department of Botany, S.S.B.N Degree College, Andhra Pradesh. India
  4. Department of Biotechnology, Akshaya Biological Corporation, Himayath nagar, Hyderabad, Telangana. India
Corresponding Author: Jayasimha Rayalu Daddam, E-mail: [email protected]
Received: 14 June 2014 Accepted: 27 July 2014
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Abstract

ZNF 217 been increasingly recognized that znf 217 in human cancers may be complex structures composed of large amplified DNA domains containing multiple genes. It is therefore important to devise strategies for the rapid isolation of cDNAs expressed from these structures. Using a procedure we term microdissection mediated cDNA capture, we recovered znf 217 specific cDNAs from two different human tumors. The glioblastoma cell line TX3868 and the human sarcoma cell line OsA-CL carry ZNF 217 containing amplified sequences from chromosome 12q13–15. We recovered 2 specific cDNAs following microdissection of this ZNF 217 which had been previously hybridized in situ with linkered cDNA. Northern blot analysis with these cDNAs revealed hybridization to distinct transcripts in OsA-CL RNA and TX3868 RNA. None of the OsA-CL cDNA clones showed cross hybridization with the TX3868 cDNAs suggesting that despite their coincident band localization on 12q, the OsA-CL and TX3868 amplification units do not completely overlap. These results significantly increase the number of amplified genes assigned to the 12q13–15 amplicon illustrating both the complexity of ZNF 217 derived from this region and the utility of microdissection mediated cDNA capture to gain rapid access to cDNAs transcribed from amplified genes.

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