Blood Groups Flashcards
expression of blood groups
codominant
blood groups that do not express Mendelian rules of inheritance
Xg and Kx
formed when exposed to foreign antigens
alloantibodies
antibodies that react to self antigens
autoantibodies
key role of the complement system
hemolysis
gene product of ABO
glycosyltransferases
gene product of MNS
glycophorins
gene product of P1PK
P1 antigen
gene product of RH
RhD protein and RHCE protein
gene product of Lutheran
Lutheran glycoprotein, B-CAM
gene product of Kell
Kell protein
gene product of Lewis
alpha-3/4-fucosyl transferase
gene product of Duffy
DARC
gene product of Kidd
HUT11
gene product of Diego
Anion exchanger 1 (AE1), Band 3
gene product of Cartwright
acetylcholinesterase
gene product of Xg
CD99
gene product of Scianna
HEMP
gene product of Dombrock
ADP-ribosyl transferase (CD297)
gene product of Colton
CHIP
gene product of LW
ICAM (CD 242)
gene product of Chido/Rogers
C4A and C4B complement glycoproteins
gene product of Hh
alpha 1/2 fucosyl transferase
gene product of Kx
Kx glycoprotein
gene products of Gerbich
glycophorin C and glycophorin D
gene product of Cromer
decay accelerating factor (DAF, CD 55)
gene product of Knops
complement receptor 1 (CD35)
gene product of indian
CD44
gene product of OK
CD147, extracellular matrix metalloproteinase inducer
gene product of Raph
tetraspanin (CD151)
gene product of JMH
semaphorin (CD108)
gene product of I
alpha 1/6- N acetylglucosaminyl transferase
gene product of Globoside
alpha 1/3 N-acetylglucosaminyl transferase
gene product of Gil
aquaglycoporin
gene product of RHAG
Rh-associated glycoprotein (CD 241)
single most important blood group
ABO
ABO blood group contains how many phenotypes
4 (A, B, AB, O)
discovered ABO blood group
Landsteiner in 1901
discovered AB
Von decastello and Sturli in 1902
immunodominant sugar of H
L-fucose
immunodominant sugar of A
N-acetylgalactosamine
immunodominant sugar of B
D-galactose
ABO chromosome
chromosome 1
H chromosome
chromosome 19
rarest bloodtype
Bombay
naturally occuring antobodies in Bombay
anti-A, anti-B and anti-H
ABO antibodies are detectable at what age?
3-6 months
antibody class of ABO
IgG and IgM
most reactive to anti-H
O
least reactive to anti-H
A1B
complete absence of H antigens
Oh
what are the major subgroups of A?
A1 and A2
anti-A1 lectin
Dolichos biflorus
ABO blood group discrepancy characterized by missing antibodies
type 1
ABO blood group discrepancy characterized by missing antigens
type 2
ABO blood group discrepancy characterized by abnormal plasma proteins
type 3
ABO blood group discrepancy characterized by miscellaneous causes
type 4
biological role of ABO blood groups
cause acute rejection in solid organ transplants
discovered the D antigen
Levine and Stetson
most common genotype in whites
R1r
most common genotypes in blacks
R0r
immunogenocity if Rh antigens
D>c>E>C>e
Tippet genetic theory
2 genes: RHD and RHCE
Fisher-Race genetic theory
3 genes
Weiner genetic theory
1 gene
chromosome of Rh
chromosome 1
how do you detect weak D?
IAT
How are weak D persons identified?
Rh (-) as blood recipients
Rh(+) as blood donors
Rh(-) Du (+)
antibody produced by Rhnull
anti-Rh29
how much Rh-positive RBCs are needed to induce alloantibody production?
<0.1 ml
Kell antigens are susceptible to?
DTT, AET, 2-ME, ZZAP
a zinc neutral endopeptidase is homologous to?
CALLA, CD10
characteristics of K0K0
lacks all Kell antigens
increased expression of Kx
antibody produced by K0K0
anti-Ku (anti-KEL5)
most common immune antibody outside ABO and Rh
anti-K
confers resistance to Plasmodium vivax and Plasmodium knowlesii
-Fy; Fy (a-b-)
confers resistance to HIV
Fynull
very common cause of delayed HTRs
Kidd
most common MNS null phenotype
U-
lacks all MNS antigens due to deletion of GYPA and GYPB
Mk
lacks GYPA
En (a-); coincides with the loss of Wrb
antibody produced by dialysis patients
autoanti-N (anti-Nf)
confers resistance to Plasmodium falciparum
En (a-)
the only blood group no null phenotype
Diego
product of H antigen
FUT1
product of Se
FUT2
product of Le
FUT3
Null phenotype of Secretors
Le d
Null phenotype of non-secretors
Le c
what bacteria binds to Lewis antigen
Helicobacter pylori
epitope for CA 19-9
Sialyl-Le a
neutralizer of Lewis antigens
saliva
neutralizers of P antigens
hydatid cyst
biphasic hemolysin
Donath-Landsteiner
mechanism of Donath-Landsteiner antibodies
bonds at 4C, bursts at 37C
P1 can be receptors for
Shigella dysenteriae and EHEC
P can be receptors for
Parvovirus B19 and UPEC
Pk can be receptors for
Shigella dysenteriae, EHEC, UPEC,
HIV, Streptococcus suis, Pseudomonas aeruginosa
blood group with increased expression on reticulocytesand sickle cells of sickle cell patients
Lutheran
Lutheran has high affinity receptor for
laminin
cause of PNH-III
Dombrock null
receptors for influenza virus
GYPC and GYPD
receptor for UHEC, E.coli, echovirus and Coxsackie B virus
CD55
receptor for Haemophilus influenzae
AnWj/CD44
neutralizer for I blood group
milk and/or urine
name given to HLA class I antigens
Bg
formerly known as Bennet-Goospeed
HLA-B7
Bg expressed in WBC
HLA-B27
Bg that is clinically benign
HLA-A28
appears as shiny and refractile under the microscope
anti-Sda
neutralizer of anti-Sda
urine
most severe HTR
ABO
antibody involved in intravascular red cell destruction
IgM; large amounts of complement
antibody involved in extravascular red cell destruction
IgG
antibodies that are often described as complement dependent
KIdd antibodies
alloimmunization is acquired via:
pregnancy
transfusion
disease (EBV and IM)