yanhan

pos and neg control no problem method is tube test anti-A anti-B are monoclonal reagents results of two manufactures (immucor and diagast) are same. Anti-A1 lectin is immucor regent Why anti-A neg ,anti-A1 pos? Many thanks

A BLOOD DONOR Anti-A: 0 Anti-B: 4+ A1 Cells: w+ B cells: 0 O cells: 0 Anti-A1: 2+ (mixed field) Any sugestions?

We used the anti-A、anti-B、anti-A1、 anti-H、A1 、A2、B and screen cell of immucor company. Anti-A is gamma clone. I had used another manufacturer's anti-A and A1 、A2 cell. The result is same. Anti-H reagent with A1 、A2 control cells result (A1=neg , A2 =2+) I agree with Ginal. Plasma from A(sub)B may occasionally contain weak anti-A1,so it can react with A1 cell. why serum from the donor agglutinate both A1 and A2 cell. I am confused My English is not good. Am I understood?

thanks shily and malcolm. if we have family member 's blood type, we will deduce if the B and A glycosyltransferases gene are on the same chromosome. Can you detail it . thanks

I've a donor. anti-A= 1+ ,anti-B= 4+，anti-A1=neg , anti-H=3+ A1 cells=2+,A2 cells=1+，B cell= neg , screen cell= neg, auto ,controll = neg AsubB or B(A)? many thanks