Abstract:
:Voltage-gated calcium (Ca2+) channels contribute to impulse propagation in excitable cells and also regulate intracellular levels of Ca2+. High voltage-activated (HVA) Ca2+ channels are heteromultimeric membrane proteins. The pore-forming, voltage-sensing subunit is the alpha1 subunit. We have cloned 3 HVA Ca2+ channel alpha1 subunit cDNAs from Schistosoma mansoni. One of these sequences most closely resembles the L-type class of HVA alpha1 subunits. The other two sequences are most closely related to non L-type alpha1 subunits. These schistosome alpha1 subunits have many of the features common to HVA Ca2+ channels, but also have distinct structural motifs. Analysis of the structural and functional properties of schistosome Ca2+ channel subunits may provide information about these critical components of excitable cells.
journal_name
Parasitologyjournal_title
Parasitologyauthors
Kohn AB,Lea J,Roberts-Misterly JM,Anderson PA,Greenberg RMdoi
10.1017/s0031182001008691subject
Has Abstractpub_date
2001-11-01 00:00:00pages
489-97issue
Pt 5eissn
0031-1820issn
1469-8161journal_volume
123pub_type
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