low frequency antigens

low frequency antigens
low incidence antigens private a's (def. 1).

Medical dictionary. 2011.

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  • Other red cell antigens — In addition to the defined Human blood group systems, there are erythrocyte antigens which do not meet the definition of a blood group system. Most of these are either nearly universal in human blood or extremely rare and are rarely significant… …   Wikipedia

  • private antigens — 1. blood group antigens that occur in only a few kindreds (low frequency blood groups). Called also low frequency a s. 2. HLA antigens found only on the gene product of a single allele. 3. a tumor antigen expressed only on a particular type of… …   Medical dictionary

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  • antigen — Any substance that, as a result of coming in contact with appropriate cells, induces a state of sensitivity and/or immune responsiveness after a latent period (days to weeks) and that reacts in a demonstrable way with antibodies and/or immune… …   Medical dictionary

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  • radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… …   Universalium

  • plasma — plasmatic /plaz mat ik/, plasmic, adj. /plaz meuh/, n. 1. Anat., Physiol. the liquid part of blood or lymph, as distinguished from the suspended elements. 2. Cell Biol. cytoplasm. 3. whey. 4. a green, faintly translucent chalcedony. 5. Physics. a …   Universalium

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