Expression of acyl-CoA-binding protein 5 from Rhodnius prolixus and its inhibition by RNA interference.
The acyl-CoA-binding proteins (ACBP) act by regulating the availability of acyl-CoA in the cytoplasm and must have essential functions in lipid metabolism. The genome of the kissing-bug Rhodnius prolixus encodes five proteins of this family, but little is known about them. In this study we investiga...
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Public Library of Science (PLoS)
2020-01-01
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| Series: | PLoS ONE |
| Online Access: | https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0227685&type=printable |
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| author | Muriel G M D Almeida Daniela S Arêdes David Majerowicz Nils J Færgeman Jens Knudsen Katia C Gondim |
| author_facet | Muriel G M D Almeida Daniela S Arêdes David Majerowicz Nils J Færgeman Jens Knudsen Katia C Gondim |
| author_sort | Muriel G M D Almeida |
| collection | DOAJ |
| description | The acyl-CoA-binding proteins (ACBP) act by regulating the availability of acyl-CoA in the cytoplasm and must have essential functions in lipid metabolism. The genome of the kissing-bug Rhodnius prolixus encodes five proteins of this family, but little is known about them. In this study we investigated the expression and function of RpACBP-5. Feeding induced RpACBP-5 gene expression in the posterior midgut, and an increase of about four times was observed two days after the blood meal. However, the amount of protein, which was only detected in this organ, did not change during digestion. The RpACBP-5 gene was also highly expressed in pre-vitellogenic and vitellogenic oocytes. Recombinant RpACBP-5 was shown to bind to acyl-CoA of different lengths, and it exhibited nanomolar affinity to lauroyl-CoA in an isothermal titration assay, indicating that RpACBP-5 is a functional ACBP. RpACBP-5 knockdown by RNA interference did not affect digestion, egg laying and hatching, survival, or accumulation of triacylglycerol in the fat body and oocytes. Similarly, double knockdown of RpACBP-1 and RpACBP-5 did not alter egg laying and hatching, survival, accumulation of triacylglycerol in the fat body and oocytes, or the neutral lipid composition of the posterior midgut or hemolymph. These results show that RpACBP-5 is a functional ACBP but indicate that the lack of a detectable phenotype in the knockdown insects may be a consequence of functional overlap of the proteins of the ACBP family found in the insect. |
| format | Article |
| id | doaj-art-d94e954ad6594513b2fa7dc75b2b409c |
| institution | DOAJ |
| issn | 1932-6203 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj-art-d94e954ad6594513b2fa7dc75b2b409c2025-08-20T02:54:53ZengPublic Library of Science (PLoS)PLoS ONE1932-62032020-01-01151e022768510.1371/journal.pone.0227685Expression of acyl-CoA-binding protein 5 from Rhodnius prolixus and its inhibition by RNA interference.Muriel G M D AlmeidaDaniela S ArêdesDavid MajerowiczNils J FærgemanJens KnudsenKatia C GondimThe acyl-CoA-binding proteins (ACBP) act by regulating the availability of acyl-CoA in the cytoplasm and must have essential functions in lipid metabolism. The genome of the kissing-bug Rhodnius prolixus encodes five proteins of this family, but little is known about them. In this study we investigated the expression and function of RpACBP-5. Feeding induced RpACBP-5 gene expression in the posterior midgut, and an increase of about four times was observed two days after the blood meal. However, the amount of protein, which was only detected in this organ, did not change during digestion. The RpACBP-5 gene was also highly expressed in pre-vitellogenic and vitellogenic oocytes. Recombinant RpACBP-5 was shown to bind to acyl-CoA of different lengths, and it exhibited nanomolar affinity to lauroyl-CoA in an isothermal titration assay, indicating that RpACBP-5 is a functional ACBP. RpACBP-5 knockdown by RNA interference did not affect digestion, egg laying and hatching, survival, or accumulation of triacylglycerol in the fat body and oocytes. Similarly, double knockdown of RpACBP-1 and RpACBP-5 did not alter egg laying and hatching, survival, accumulation of triacylglycerol in the fat body and oocytes, or the neutral lipid composition of the posterior midgut or hemolymph. These results show that RpACBP-5 is a functional ACBP but indicate that the lack of a detectable phenotype in the knockdown insects may be a consequence of functional overlap of the proteins of the ACBP family found in the insect.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0227685&type=printable |
| spellingShingle | Muriel G M D Almeida Daniela S Arêdes David Majerowicz Nils J Færgeman Jens Knudsen Katia C Gondim Expression of acyl-CoA-binding protein 5 from Rhodnius prolixus and its inhibition by RNA interference. PLoS ONE |
| title | Expression of acyl-CoA-binding protein 5 from Rhodnius prolixus and its inhibition by RNA interference. |
| title_full | Expression of acyl-CoA-binding protein 5 from Rhodnius prolixus and its inhibition by RNA interference. |
| title_fullStr | Expression of acyl-CoA-binding protein 5 from Rhodnius prolixus and its inhibition by RNA interference. |
| title_full_unstemmed | Expression of acyl-CoA-binding protein 5 from Rhodnius prolixus and its inhibition by RNA interference. |
| title_short | Expression of acyl-CoA-binding protein 5 from Rhodnius prolixus and its inhibition by RNA interference. |
| title_sort | expression of acyl coa binding protein 5 from rhodnius prolixus and its inhibition by rna interference |
| url | https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0227685&type=printable |
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