Question

Which of these is lectin?
A). Gum
B). Diterpene
C). Concanavalin A
D).Curumin

Answer 1

Hint: Lectins are carbohydrate-binding proteins that are highly specific for sugar groups that are a part of other molecules, causing agglutination of particular cells or precipitation of glycoconjugates and polysaccharides.

Complete answer:
Concanavalin A (ConA) may be a lectin (carbohydrate-binding protein) originally extracted from the jack-bean, jack bean . It's a member of the legume lectin family. It binds specifically to certain structures found in various sugars, glycoproteins and glycolipids, mainly internal and non-reducing terminal -D-mannosyl and -D-glucosyl groups. ConA may be a plant mitogen and is understood for its ability to stimulate mouse T-cell subsets giving rise to four functionally distinct T cell populations, including precursors to suppressor T-cell.
Diterpene, a kind of terpene, is a compound composed of 4 isoprene units. Curcumin may be a substance in turmeric and morphine is an analgesic opioid drug.
Concanavalin A may be a lectin originally extracted from the jack-bean. It's a member of the legume lectin family. It binds specifically to certain structures found in various sugars, glycoproteins, and glycolipids, mainly internal and nonreducing terminal α-D-mannosyl and α-D-glucosyl groups.
In the search for new therapies for liver tumors, we found that Concanavalin A (Con A), a lectin from wonder bean seeds, can have a potent anti-hepatoma effect. Con A after binding to the mannose moiety on the cell wall glycoprotein is internalized preferentially to the mitochondria.

Hence: the choice C is correct.

Note: Concanavalin A (Con A) may be a broadly selective lectin that favors glycans presenting α-mannose-containing cores, like those found in many N-glycans; it are often useful for separating N-glycosylated proteins from O-glycosylated proteins during a sample.

Complete answer:
Concanavalin A (ConA) may be a lectin (carbohydrate-binding protein) originally extracted from the jack-bean, jack bean . It's a member of the legume lectin family. It binds specifically to certain structures found in various sugars, glycoproteins and glycolipids, mainly internal and non-reducing terminal -D-mannosyl and -D-glucosyl groups. ConA may be a plant mitogen and is understood for its ability to stimulate mouse T-cell subsets giving rise to four functionally distinct T cell populations, including precursors to suppressor T-cell.
Diterpene, a kind of terpene, is a compound composed of 4 isoprene units. Curcumin may be a substance in turmeric and morphine is an analgesic opioid drug.
Concanavalin A may be a lectin originally extracted from the jack-bean. It's a member of the legume lectin family. It binds specifically to certain structures found in various sugars, glycoproteins, and glycolipids, mainly internal and nonreducing terminal α-D-mannosyl and α-D-glucosyl groups.
In the search for new therapies for liver tumors, we found that Concanavalin A (Con A), a lectin from wonder bean seeds, can have a potent anti-hepatoma effect. Con A after binding to the mannose moiety on the cell wall glycoprotein is internalized preferentially to the mitochondria.

Hence: the choice C is correct.

Note: Concanavalin A (Con A) may be a broadly selective lectin that favors glycans presenting α-mannose-containing cores, like those found in many N-glycans; it are often useful for separating N-glycosylated proteins from O-glycosylated proteins during a sample.