For each of the descriptions in questions ,select the B cell signaling molecule (A-I)that most closely matches it.
-A protein tyrosine kinase homologous to Zap-70,which phosphorylates several adaptor proteins and enzymes
A)Iga
B)Igb
C)C3b
D)C3d
E)CR2
F)CD19
G)CD81
H)Fyn
I)Syk

Question

Quizplus · Accepted Answer

The tyrosine kinase Syk binds through its SH2 domains to the phosphotyrosine residues on the cytoplasmic tails of IgF1F1F1S1F1F1F10 and IgF1F1F1S1F1F1F10.On activation,Syk,in turn,activates numerous downstream signaling molecules,including B cell linker protein (BLNK).BLNK serves as a scaffolding protein for the activation of different pathways,including the Ras-MAP kinase pathway,the phospholipase C pathway with calcium release,and Btk activation.Ultimately,many of the same transcription factors that are important in T cell activation also mediate B cell activation,including NFAT,AP-1,and NF-F1F1F1S1F1F1F10B.

For Each of the Descriptions in Questions ,Select the B