The HSP70 Gene Family inPneumocystis carinii: Molecular and Phylogenetic Characterization of Cytoplasmic Members

1998 ◽  
Vol 45 (6) ◽  
pp. 589-599 ◽  
Author(s):  
Timothy T. Stedman ◽  
Diann R. Butler ◽  
Gregory A. Buck
1988 ◽  
Vol 8 (7) ◽  
pp. 2925-2932 ◽  
Author(s):  
Z F Zakeri ◽  
D J Wolgemuth ◽  
C R Hunt

A unique member of the mouse HSP70 gene family has been isolated and characterized with respect to its DNA sequence organization and expression. The gene contains extensive similarity to a heat shock-inducible HSP70 gene within the coding region but diverges in both 3' and 5' nontranslated regions. The gene does not yield transcripts in response to heat shock in mouse L cells. Rather, the gene appears to be activated uniquely in the male germ line. Analysis of RNA from different developmental stages and from enriched populations of spermatogenic cells revealed that this gene is expressed during the prophase stage of meiosis. A transcript different in size from the major heat-inducible mouse transcripts is most abundant in meiotic prophase spermatocytes and decreases in abundance in postmeiotic stages of spermatogenesis. This pattern of expression is distinct from that observed for another member of this gene family, which was previously shown to be expressed abundantly in postmeiotic germ cells. These observations suggest that specific HSP70 gene family members play distinct roles in the differentiation of the germ cell lineage in mammals.


2005 ◽  
Vol 59 (4) ◽  
pp. 533-551 ◽  
Author(s):  
Jeffrey S. Skinner ◽  
Jarislav von Zitzewitz ◽  
Péter Szűcs ◽  
Luis Marquez-Cedillo ◽  
Tanya Filichkin ◽  
...  

1990 ◽  
Vol 10 (6) ◽  
pp. 3232-3238 ◽  
Author(s):  
L A Perkins ◽  
J S Doctor ◽  
K Zhang ◽  
L Stinson ◽  
N Perrimon ◽  
...  

The Drosophila heat shock cognate gene 4 (hsc4), a member of the hsp70 gene family, encodes an abundant protein, hsc70, that is more similar to the constitutively expressed human protein than the Drosophila heat-inducible hsp70. Developmental expression revealed that hsc4 transcripts are enriched in cells active in endocytosis and those undergoing rapid growth and changes in shape.


2020 ◽  
Vol 174 ◽  
pp. 107394
Author(s):  
Qiang He ◽  
Jian Luo ◽  
Jin-Zhi Xu ◽  
Xian-zhi Meng ◽  
Guo-Qing Pan ◽  
...  
Keyword(s):  

Gene ◽  
1992 ◽  
Vol 121 (2) ◽  
pp. 353-358 ◽  
Author(s):  
Gabriella Sconzo ◽  
Giuseppe Scardina ◽  
Maria Grazia Ferraro

1988 ◽  
Vol 8 (7) ◽  
pp. 2925-2932
Author(s):  
Z F Zakeri ◽  
D J Wolgemuth ◽  
C R Hunt

A unique member of the mouse HSP70 gene family has been isolated and characterized with respect to its DNA sequence organization and expression. The gene contains extensive similarity to a heat shock-inducible HSP70 gene within the coding region but diverges in both 3' and 5' nontranslated regions. The gene does not yield transcripts in response to heat shock in mouse L cells. Rather, the gene appears to be activated uniquely in the male germ line. Analysis of RNA from different developmental stages and from enriched populations of spermatogenic cells revealed that this gene is expressed during the prophase stage of meiosis. A transcript different in size from the major heat-inducible mouse transcripts is most abundant in meiotic prophase spermatocytes and decreases in abundance in postmeiotic stages of spermatogenesis. This pattern of expression is distinct from that observed for another member of this gene family, which was previously shown to be expressed abundantly in postmeiotic germ cells. These observations suggest that specific HSP70 gene family members play distinct roles in the differentiation of the germ cell lineage in mammals.


Genes ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 8
Author(s):  
Cuicui Yu ◽  
Mei Rong ◽  
Yang Liu ◽  
Peiwen Sun ◽  
Yanhong Xu ◽  
...  

The heat shock protein 70 (HSP70) gene family perform a fundamental role in protecting plants against biotic and abiotic stresses. Aquilaria sinensis is a classic stress-induced medicinal plant, producing a valuable dark resin in a wood matrix, known as agarwood, in response to environmental stresses. The HSP70 gene family has been systematic identified in many plants, but there is no comprehensive analysis at the genomic level in A. sinensis. In this study, 15 putative HSP70 genes were identified in A. sinensis through genome-wide bioinformatics analysis. Based on their phylogenetic relationships, the 15 AsHSP70 were grouped into six sub-families that with the conserved motifs and gene structures, and the genes were mapped onto six separate linkage groups. A qRT-PCR analysis showed that the relative expression levels of all the AsHSP70 genes were up-regulated by heat stress. Subcellular localization of all HSP70s was predicted, and three were verified by transiently expressed in Arabidopsis protoplasts. Based on the expression profiles in different tissues and different layers treated with Agar-Wit, we predict AsHSP70 genes are involved in different stages of agarwood formation. The systematic identification and expression analysis of HSP70s gene family imply some of them may play important roles in the formation of agarwood. Our findings not only provide a foundation for further study their biological function in the later research in A. sinensis, but also provides a reference for the analysis of HSPs in other species.


1990 ◽  
Vol 10 (6) ◽  
pp. 3232-3238
Author(s):  
L A Perkins ◽  
J S Doctor ◽  
K Zhang ◽  
L Stinson ◽  
N Perrimon ◽  
...  

The Drosophila heat shock cognate gene 4 (hsc4), a member of the hsp70 gene family, encodes an abundant protein, hsc70, that is more similar to the constitutively expressed human protein than the Drosophila heat-inducible hsp70. Developmental expression revealed that hsc4 transcripts are enriched in cells active in endocytosis and those undergoing rapid growth and changes in shape.


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