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Characterization of a carboxypeptidase A gene from the mosquito, Aedes aegypti
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Abstract
A gut‐specific carboxypeptidase A gene (
AeCPA
) from the mosquito,
Aedes aegypti
, was cloned and characterized. The gene has an open reading frame that predicts a protein of 427 amino acids, 61% of which are identical to an
Anopheles gambiae
carboxypeptidase A sequence.
AeCPA
messenger RNA (mRNA) was not detected during larval and pupal development.
In situ
hybridization experiments indicated that
AeCPA
mRNA is expressed by posterior midgut epithelial cells. In sharp contrast to
An. gambiae
carboxypeptidase A gene expression,
AeCPA
mRNA accumulates to high levels only late (≈ 16–24 h) after ingestion of a blood meal. The temporal profile of
AeCPA
gene induction is similar to that of
Ae. aegypti
late trypsin, suggesting the existence of common regulatory elements.
Title: Characterization of a carboxypeptidase A gene from the mosquito,
Aedes aegypti
Description:
Abstract
A gut‐specific carboxypeptidase A gene (
AeCPA
) from the mosquito,
Aedes aegypti
, was cloned and characterized.
The gene has an open reading frame that predicts a protein of 427 amino acids, 61% of which are identical to an
Anopheles gambiae
carboxypeptidase A sequence.
AeCPA
messenger RNA (mRNA) was not detected during larval and pupal development.
In situ
hybridization experiments indicated that
AeCPA
mRNA is expressed by posterior midgut epithelial cells.
In sharp contrast to
An.
gambiae
carboxypeptidase A gene expression,
AeCPA
mRNA accumulates to high levels only late (≈ 16–24 h) after ingestion of a blood meal.
The temporal profile of
AeCPA
gene induction is similar to that of
Ae.
aegypti
late trypsin, suggesting the existence of common regulatory elements.
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