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Virologica Sinica, 19 (2) : 168-170, 2004
Brief Reports
The Bioinformatic Analysis of the blcap Gene
1. Virology Institute of Medical School, Wuhan University, Wuhan 430071, China
2.The Clinical Laboratory of Zhongnan Hospital, Wuhan University, Wuhan 430071, China
BLCAP is a potential gene for suppression of cervical carcinoma, which was found by analysing the cervical carcinoma specimen with the oncogene and anti-oncogene cDNA microarray. Basing on the bioinformatical analyses, we try to predict the function of blcap gene. The results show that there are several genes that highly resemble with blcap. The comparability between the sequences of blcap and Homo sapiens mRNA (DKFZp564M053) or BC10 is 99% and 87%, respectively. The protein encoded by BLCAP is composed of Leu(19.5%)、pro(9.19%)、ser(8.04%)、cys(8.04%) and other amino acids. The secondary structure of the N-terminal of BLCAP encoded protein is an alpha helix. In the C-terminal, it is beta sheet and in the middle, it is coil. The of the terminals is more hydrophobile than the middle region. Between 45-55aa, there is a transmembrane region. Therefore, we forecast the BLCAP is a member of transmembrane protein I. By analyzing the signal peptide and the procedure of blcap gene with the program of SignalP (V1.1), we found a cleavage site in 59-66aa. By using the program of Netpho, we predicted there might be three phospholate sites at 68aa, 73aa and 78aa. At 78-81aa, we found a typical [ST]-X(2)-[DE] structure—the phospholate site of tyrosine protein kinase, which might be related to its function. Bioinformatic studies of blcap provided the foundation for the function researches of BLCAP in laboratory.
  Published online: 20 Apr 2004
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