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@ARTICLE{Fuss:14335,
author = {Fuss, N. and Mujagic, S. and Wachten, S. and Erber, J. and
Baumann, A.},
title = {{B}iochemical properties of heterologously expressed and
native adenylyl cyclases from the honeybee brain ({A}pis
mellifera {L}.)},
journal = {Insect biochemistry and molecular biology},
volume = {40},
issn = {0965-1748},
address = {Amsterdam},
publisher = {Elsevier},
reportid = {PreJuSER-14335},
pages = {573 - 580},
year = {2010},
note = {We gratefully acknowledge the technical assistance of S.
Balfanz (Julich). For help with Western blots containing
native honeybee proteins, we thank B. Troppmann (University
Potsdam). This study was supported by grants BA 1541/6-1/2
and Er 79/6-2 from the Deutsche Forschungsgemeinschaft.},
abstract = {Cyclic AMP is an important intracellular signaling molecule
participating e.g. in sensory signal transduction, cardiac
myocyte regulation, learning and memory. The formation of
cAMP is catalyzed by adenylyl cyclases. A variety of factors
can modulate the properties of these enzymes and lead to
dynamic changes of the intracellular cAMP concentration.
Here we determined the tissue distribution of a recently
cloned adenylyl cyclase (AmAC3) in honeybee brain. The
protein is present in all neuropils. Intensive
immunoreactivity was found in parts of the proto- and
deutocerebrum and in the suboesophageal ganglion.
Biochemical and pharmacological properties of AmAC3 and of
native adenylyl cyclases in subregions of the honeybee brain
were examined. Values for half-maximal activation with
NKH477 were in the low micromolar range with 10.2 μM for
AmAC3 and 3.6-8.1 μM for native enzymes. Biosynthesis of
cAMP was specifically blocked by P-site inhibitors. Adenylyl
cyclases in antennal lobes and AmAC3 share the inhibitory
profile with 2',5'dd3'ATP>3'AMP>2'deoxyadenosine. In
addition to P-site inhibitors AmAC3 activity was impaired by
Ca(2+)/calmodulin. The results suggest that AmAC3 is a
likely candidate to fulfill an integrative role in sensory,
motor and higher-order information processing in the
honeybee brain.},
keywords = {Adenylate Cyclase: chemistry / Adenylate Cyclase: genetics
/ Adenylate Cyclase: metabolism / Animals / Bees: enzymology
/ Bees: genetics / Brain: enzymology / Cell Line / Enzyme
Activation / Gene Expression / Insect Proteins: chemistry /
Insect Proteins: genetics / Insect Proteins: metabolism /
Neuropil: enzymology / Protein Transport / Insect Proteins
(NLM Chemicals) / Adenylate Cyclase (NLM Chemicals) / J
(WoSType)},
cin = {ISB-1},
ddc = {590},
cid = {I:(DE-Juel1)VDB922},
pnm = {BioSoft: Makromolekulare Systeme und biologische
Informationsverarbeitung},
pid = {G:(DE-Juel1)FUEK505},
shelfmark = {Biochemistry $\&$ Molecular Biology / Entomology},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:20685336},
UT = {WOS:000280616400002},
doi = {10.1016/j.ibmb.2010.05.004},
url = {https://juser.fz-juelich.de/record/14335},
}