
Chemokinereceptorsareseven-transmembranedomainG-proteincoupledreceptorsthatmediatethebiologicalactivitiesofchemokines.Mostofthesereceptorsexhibitpromiscuousbindingpropertieswherebyseveraldifferentchemokinessignalthroughthesamereceptor.Theyarenamedaccordingtothechemokinesubfamilytheybind.TherearecurrentlysixCXC-specificreceptorsdesignatedCXCR1toCXCR6,elevenCC-specificreceptorsdesignatedCCR1toCCR11,andoneCreceptor,XCR1.CX3CR1isthereceptorforfractalkine.
Image: CXCR2 stainingof humanlymphnodes.CellswerestainedusingABC-HRP+AEC(red)andHaematoxylin(blue)counterstain.Itisrecommendedtoemployanavidin-biotinblockingstepandquenchendogenousperoxidase.