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GGMP motif

Eun-Seob Cho, Hee-Dong Jeong
The cDNA of Crassostrea gigas HSP70 was cloned and rapid amplification of cDNA (RACE) techniques were used. The full length of HSP70 cDNA was 2045 bp, consisting of a 5' terminal untranslated region (UTR) of 80 bp, a 3' terminal UTR 146 bp, and an open reading frame (ORF) of 1829 bp encoding deduced 620 amino acids. The HSP70 cDNA contained HSP70 family signatures, ATP-GTP binding site motif, tetrapeptide (GGMP) and conserved carboxyl terminal region (EEVD) at C-terminal of deduced amino acid sequence. BLAST analysis revealed that the HSP70 gene has an extreme similarity of 98...
May 2012: Journal of Environmental Biology
Zhaoxia Cui, Yuan Liu, Weisha Luan, Qianqian Li, Danhua Wu, Shuangyan Wang
Hsp70 can stimulate cells of the innate immune system directly by acting as "danger"-signaling molecules. To understand the immune defense mechanisms of swimming crab Portunus trituberculatus (Decapoda: Brachyura: Portunidae), the cDNA of Hsp70 (designated PtHsp70) was cloned by the combination of homology cloning and rapid amplification of cDNA ends (RACE). The full-length PtHsp70 cDNA was 2195 bp, including an open reading frame (ORF) of 1950 bp encoding a polypeptide of 650 amino acids with estimated molecular mass of 71...
January 2010: Fish & Shellfish Immunology
M Amor-Mahjoub, N Gomez-Vrielyunck, J P Suppini, B Fouchaq, N Benarouj, M Ladjimi
HSP70 from bacteria to man are known to self-associate to form multiple species suggesting that self-association is related to function. In order to determine the structural basis of HSP70 oligomerization, deletion mutants in the C-terminal domain of HSC70, a constitutive member of the HSP70 family, have been constructed and analyzed for their self-association properties by gel electrophoresis, size-exclusion chromatography and analytical ultracentrifugation. The results of this investigation indicate that, whereas deletion of the GGMP rich C-terminal extremity of HSC70, containing EEVD motif stabilizes the oligomeric species, deletions of either the aD-aE C-terminal helices or the inter-domain hydrophobic linker contribute to the stabilization of the monomeric form...
2006: Archives de L'Institut Pasteur de Tunis
R Wu, L Sun, M Lei, S T Xie
Heat shock protein 70s (HSP70s) are fundamental chaperone proteins that are indispensable to most living organisms. In order to investigate the function of HSP70 and heat shock response in shrimp, a heat shock cognate (HSC70) gene of the white shrimp (Litopenaeus vannamei), containing a 1959-bp open reading frame, was cloned and characterized. The amino acid sequence, 71.5 kDa of molecular weight, shares 80-99.6% homology with 12 diverse species' HSP70s and HSC70s. In fact, some segments of the eukaryotic HSC70 sequence, such as ATP/GTP-binding site, cytoplasmic HSP70 C-terminal sequence, and GGMP/GAP repeats, are also found in the putative shrimp HSC70...
March 2008: Molekuliarnaia Biologiia
S M Jayasena, N V Chandrasekharan, E H Karunanayake
The filarial parasite Setaria digitata is the causative agent of cerebrospinal nematodiasis in its abnormal hosts such as sheep, goats and horses, and therefore is of significant veterinary importance. Since very little is currently known about the biology of this parasite at molecular level, we have cloned and characterised a hsp70 gene, the first gene to be reported from this parasite. The genomic clone isolated contained sequences from two hsp70 genes. One gene, hsp70-2, was completely sequenced and found to contain nine introns ranging in size from 78 to 195 bp...
April 1999: International Journal for Parasitology
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