TY - JOUR
T1 - Cloning, Sequencing and Expression of a Heat Shock Protein 70 Gene from Tenebrio molitor
AU - Huang, Qiong AU - Wang, Qin AU - Sun, Lin AU - Hu, Jie
JO - Journal of Animal and Veterinary Advances
VL - 11
IS - 24
SP - 4632
EP - 4643
PY - 2012
DA - 2001/08/19
SN - 1680-5593
DO - javaa.2012.4632.4643
UR - https://makhillpublications.co/view-article.php?doi=javaa.2012.4632.4643
KW - stress proteins
KW -HSPs
KW -PCR
KW -shock protein
KW -HSE
KW -China
AB - Heat Shock/Stress Proteins (HSPs) are a group of stress proteins
which are closely associated with organisms adaptability to environment
and the heat shock protein 70 is the most conserved and important member. Researchers
cloned an hsp70 gene from Tenebrio molitor larvae by PCR and RACE
Method and determined the mRNA abundance in the beetle developmental stages
by real-time qPCR. The cDNA cloned was 2,282 bp in full length containing a
115 bp 5'untranslated region rich in adenine, a 1,935 bp open reading frame
and a 232 bp 3'untranslated regionrich in adenine and thymine. It also had seven
repeats of the Heat Shock Element (HSE) nGAAn in its 5'UTR and a 22 bp Poly
(A) tail in the 3'UTR. The deduced heat shock protein had a highly conserved
N-terminal ATPase domain and a conserved C-terminal peptide-binding domain.
The tertiary structure of ATPase domain was made of two large globular subdomains
which were separated by a deep cleft and the peptide-binding domain was a sandwich
of 2 four-stranded β-sheets with four loops protruding upwards and two
α-helices. Real-time qPCR analysis revealed that the hsp70 mRNA expression
in T. molitor was characterized by heat-inducible and developmental-regulation
features. The results form a basis for further research on structure, function
and expression regulation of HSPs from T. molitor as well as to decipher
the relationship between HSPs and stress-resistance in the beetle.
ER -