Abacwaningi baseRussia babonise ngokokuqala ngqa ukuthi enye ye-heat shock protein (IbpA) isebenzisana ngokuqondile neprotheyini ebhekele ukukhiqizwa kwebhaktheriya eyi-parasitic Acholeplasma laidlawii. iwebhusayithi esemthethweni yoMnyango Wezemfundo Nesayensi.
Lawa ma-mycoplasma, kanye nama-phytoplasma ahlobene, abeka usongo olukhulu ekukhiqizeni izitshalo, njengoba ehlala ezitshalweni ezibalulekile kwezolimo. Ngokuzayo, le phrotheni ingasetshenziswa njengenhloso yezidakamizwa ezivikela izitshalo. Umsebenzi wenziwa ngabasebenzi be-Institute of Cytology (INC) RAS, engaphansi koMnyango Wezemfundo Nesayensi weRussian Federation.
Amagciwane ohlobo lwe-Acholeplasma laidlawii yiwo kuphela ama-mycoplasma angaphila ngokukhululeka emhlabathini noma emanzini, kodwa abulala izitshalo nezilwane ngokuyinhloko. Umsebenzi obalulekile wala magciwane ungaholela ekulahlekeni kwesivuno esikhulu.
Ngesikhathi esifanayo, i-achholeplasma, njengamanye ama-mycoplasmas kanye ne-phytoplasmas, ibonisa ukumelana nenani lemithi elwa namagciwane esetshenziswa kabanzi kwezolimo ukuvikela izitshalo. Ngakho-ke, namuhla ososayensi benza ucwaningo olunzulu lwe-mycoplasmas ukuze bathole izindlela ezintsha eziphumelelayo zokulwa nalezi zinambuzane eziyingozi.
“Ku-achholeplasma, sifunda lokho okubizwa nge-protein encane yokushaqeka kwe-IbpA, ebonakala ngenani elikhulu lemisebenzi. Ikakhulukazi, ivikela amangqamuzana ebhaktheriya ekucindezelekeni. Sikwazile ukuthola ukuthi i-IbpA ithinta ngqo amaprotheni abhekele ukuhlukaniswa kwamaseli we-microorganism, hhayi nje ngaphansi kwengcindezi, kodwa futhi ngaphansi kwezimo ezifanele zokukhula kwaleli gciwane, "kusho u-Innokenty Vishnyakov, inhloko yeProkaryotic Molecular Cytology and Bacterial. Iqembu Lokuhlasela e-Institute of Scientific Centers ye-Russian Academy of Sciences.
Ukuhlola umbono wokuthi iphrotheni yokushaqeka kokushisa i-IbpA ku-achholeplasma ithinta iphrotheni enesibopho sokuhlukaniswa kwamaseli i-FtsZ, ososayensi abavela ku-Institute of Scientific Centers of the Russian Academy of Sciences basebenzisa izindlela ezimbalwa zofuzo zamangqamuzana. Amaseli e-Acholeplasma acwaningwa kusetshenziswa i-electron microscopy yokudlulisela, ngaphezu kwalokho, okubizwa ngokuthi i-plasmon surface resonance yasetshenziswa. Le ndlela ikuvumela ukuthi urekhode ngokunembile ukusebenzisana kwama-biomolecules ahlukahlukene esitokisini ngesikhathi sangempela.
I-FtsZ iphrotheni etholakala cishe kuwo wonke amagciwane aziwayo. Iqala noma isebenze ukuhlukaniswa kwamaseli kubhaktheriya, kuhlanganise ne-acholeplasma. Kungashiwo ukuthi ilawula ukukhiqizwa kwamagciwane.
I-IbpA ingelinye lamaprotheni ashaqisa ukushisa asebenza kumaseli cishe azo zonke izinto eziphilayo. Okuhlukile kwalawa ma-biopolymers ukuthi umzimba uqala ukuwahlanganisa ngenkuthalo esitokisini uphendula izici ezahlukahlukene zengcindezi. Khona-ke amaprotheni okwethuka kokushisa aqala ukusebenza kumaprotheni aneminye imisebenzi ukuze enze umsebenzi wawo abe ngokwejwayelekile noma asebenzise lawo maprotheni ayeke ukusebenza ngendlela efanele ngenxa yengcindezi.
Ngokusekelwe emiphumeleni yabo, abacwaningi baphetha ngokuthi i-protein ye-heat shock IbpA ku-acheoplasm ingaba inhloso yezidakamizwa.
“Lo msebenzi unezela emiphumeleni yethu yangaphambili iqiniso lokuthi le phrotheni iyakwazi ukuthonya ukuhlukaniswa kwamaseli e-acholeplasma. Ngakho-ke, ukwephulwa komsebenzi wawo kungaholela emiphumeleni edabukisayo ye-mycoplasma ngisho nokufa kwe-microorganism. Esikhathini esizayo, lo mphumela ungasetshenziswa ukudala izidakamizwa ezivikela izitshalo ezibalulekile kwezolimo, "kwengeza u-Innokenty Vishnyakov.