2007-08-09 17:26:29 · 7 answers · asked by samuel g 1 in Science & Mathematics ➔ Biology
IgM is the first antibody produced.
2007-08-10 04:35:56 · answer #1 · answered by alynnemgb 5 · 3⤊ 0⤋
IgM, it is initally membrane bound (to B cells) and is later secreted in large quanities by plasma cells (specialised antibody producing B cells).
Secreted IgM is often pentameric meaning that it forms a mulitmer of 5 IgM monomers.
2007-08-13 23:34:23 · answer #2 · answered by phytat 2 · 0⤊ 0⤋
Naive B cells that engage their antigen with the proper costimulation always produce IgM first (and a little of IgD). As the primary response evolves, class switching occurs and they can produce IgG, IgA, or IgE.
2007-08-10 09:40:11 · answer #3 · answered by cantonrh 3 · 0⤊ 0⤋
The ones on Wikipedia
2007-08-10 00:31:03 · answer #4 · answered by Anonymous · 0⤊ 2⤋
IgM. its always on primary response, especially for viral infection.
2007-08-10 00:44:25 · answer #5 · answered by TelecomsTowerGod 4 · 0⤊ 0⤋
IgM
2007-08-10 19:35:30 · answer #6 · answered by bad guppy 5 · 0⤊ 0⤋
IgM
2007-08-10 09:04:44 · answer #7 · answered by furball 4 · 0⤊ 0⤋