Article
A tissue specific IL-1 receptor antagonist homolog from the IL-1 cluster lacks IL-1, IL-1ra, IL-18 and IL-18 antagonist activities
1 Nov 2000
Abstract excerpt
Interleukin (IL)-1-like protein 1 (IL-1L1) is a 155-amino acid protein that shares 27% identity with IL-1beta and 47% with IL-1 receptor antagonist (IL-1ra). A 2.7-kb IL-1L1 mRNA was cloned from human placenta and is detectable in the trophoblastic cell line JEG-3, in macrophages and in endotoxin-stimulated monocytes. Expression of IL-1L1 is much less abundant and less widespread than IL-1ra. We have determined...
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