PhTx-1

PhTx-1 is a toxic fraction isolated from the venom of the Brazilian wandering spider Phoneutria nigriventer.

Composition and Target

PhTx-1 has as its main toxin PnTx-1, with a molecular mass of 8,594.6 Da, composed of 77 aminoacid residues, 14 of which are cysteines.[1] PnTx-1, also known as Tx1, exerts an inhibitory effect on neuronal sodium channels (Nav1.2).[2] This component is considered highly pathogenic for primates.[3]

References

Resende, Rodrigo R. (2015-01-01). Biotecnologia aplicada à saúde - vol. 1: fundamentos e aplicações (in Portuguese). Editora Blucher. ISBN 978-85-212-0897-6.
Weiss, Marcelo Barros; Paiva, Jorge Wilson Souza (2018-10-10). Acidentes com Animais Peçonhentos (in Portuguese). Thieme Revinter Publicações LTDA. ISBN 978-85-5465-084-1.
"phonutria sac when to pull and how to know if its furtile?". Arachnoboards. Retrieved 2020-11-01.

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[1] Resende, Rodrigo R. (2015-01-01). Biotecnologia aplicada à saúde - vol. 1: fundamentos e aplicações (in Portuguese). Editora Blucher. ISBN 978-85-212-0897-6.

[2] Weiss, Marcelo Barros; Paiva, Jorge Wilson Souza (2018-10-10). Acidentes com Animais Peçonhentos (in Portuguese). Thieme Revinter Publicações LTDA. ISBN 978-85-5465-084-1.

[3] "phonutria sac when to pull and how to know if its furtile?". Arachnoboards. Retrieved 2020-11-01.