Characterization of the oxysterol-binding protein gene family in the yellow fever mosquito, Aedes aegypti

The oxysterol-binding protein (OSBP) and OSBP-related proteins (ORPs) are sterol-binding proteins that may be involved in cellular sterol transportation, sterol metabolism and signal transduction pathways. Four ORP genes were cloned from Aedes aegypti. Based on amino acid sequence homology to human...

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Veröffentlicht in:Insect molecular biology 2011-08, Vol.20 (4), p.541-552
Hauptverfasser: Fu, Q, Lynn-Miller, A, Lan, Q
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Lynn-Miller, A
Lan, Q
description The oxysterol-binding protein (OSBP) and OSBP-related proteins (ORPs) are sterol-binding proteins that may be involved in cellular sterol transportation, sterol metabolism and signal transduction pathways. Four ORP genes were cloned from Aedes aegypti. Based on amino acid sequence homology to human proteins, they are AeOSBP, AeORP1, AeORP8 and AeORP9. Splicing variants of AeOSBP and AeORP8 were identified. The temporal and spatial transcription patterns of members of the AeOSBP gene family through developmental stages and the gonotrophic cycle were profiled. AeORP1 transcription seemed to be head tissue-specific, whereas AeOSBP and AeORP9 expression was induced by a bloodmeal. Furthermore, over-expression of AeORPs facilitated [³H]-cholesterol uptake in Ae. aegypti cultured Aag -2 cells.
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source MEDLINE; Wiley Online Library Journals Frontfile Complete
subjects Aedes - genetics
Aedes - metabolism
Aedes aegypti
amino acid sequences
Animals
Cell Line
cholesterol
Cholesterol - metabolism
developmental stages
Female
gene expression
genes
gonotrophic cycle
head
humans
Insect Vectors - genetics
Insect Vectors - metabolism
Male
metabolism
Multigene Family
oxysterol-binding protein
proteins
Receptors, Steroid - genetics
Receptors, Steroid - metabolism
sequence homology
signal transduction
sterol transport
Transcription, Genetic
Up-Regulation
Yellow Fever - transmission
title Characterization of the oxysterol-binding protein gene family in the yellow fever mosquito, Aedes aegypti
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