Cell adhesion molecules feem ntau yog rau tsev neeg ntawm cov tshuaj hu ua glycoproteins. Lawv nyob ntawm lub xovtooj ntawm testhiab tsim ntau hom kev sib txuas thiab sib txuas los koom nrog: cov hlwb rau cov hlwb.
Dab tsi ntawm tes yog adhesion hauv?
Prokaryotes muaj adhesion molecules ntawm lawv lub xov tooj ntawm tes hu ua kab mob adhesins, sib nrug los ntawm kev siv nws pili (fimbriae) thiab flagella rau cell adhesion. Adhesins tuaj yeem paub txog ntau yam ligands tam sim no nyob rau ntawm lub xov tooj ntawm tes thiab tseem muaj cov khoom hauv extracellular matrix.
Dab tsi yog adhesion hauv tib neeg lub cev?
Adhesions yog bands ntawm caws pliav zoo li daim ntaub. Feem ntau, cov ntaub so ntswg thiab cov kabmob hauv nruab nrog cev muaj cov nplais nplaum kom lawv tuaj yeem hloov tau yooj yim thaum lub cev txav mus los. Adhesions ua rau cov ntaub so ntswg thiab lub cev los ua ke. Lawv tuaj yeem txuas cov voj voog ntawm txoj hnyuv mus rau ib leeg, rau cov kabmob uas nyob ze, lossis rau phab ntsa ntawm lub plab.
Kev adhesion hauv hlwb yog dab tsi?
Los ntawm Wikipedia, phau ntawv qhia dawb. Cellular adhesions tuaj yeem txhais tau tias yog proteins lossis protein aggregates uas tsim kev sib txuas ntawm cov tshuab thiab tshuaj lom neeg ntawm qhov chaw intracellular thiab extracellular. Adhesions pab ntau cov txheej txheem tseem ceeb suav nrog kev txav chaw ntawm tes, hloov pauv cov teeb liab, txhim kho cov ntaub so ntswg thiab kho …
Dab tsi yog adhesion hauv cell?
Cell adhesion yog txheej txheem los ntawm cov hlwb tsim kev sib cuag nrog ib leeg lossis nrog lawv cov substratum los ntawm cov protein tshwj xeebcomplexes. Intercellular adhesion tuaj yeem kho los ntawm adherens junctions, nruj junctions thiab desmosomes, whereas hlwb muaj peev xwm cuam tshuam nrog extracellular matrix molecules los ntawm focal adhesions.
