First Author | Heesen M | Year | 1997 |
Journal | J Immunol | Volume | 158 |
Issue | 8 | Pages | 3561-4 |
PubMed ID | 9103415 | Mgi Jnum | J:39475 |
Mgi Id | MGI:86869 | Doi | 10.4049/jimmunol.158.8.3561 |
Citation | Heesen M, et al. (1997) Alternate splicing of mouse fusin/CXC chemokine receptor-4: stromal cell-derived factor-1alpha is a ligand for both CXC chemokine receptor-4 isoforms. J Immunol 158(8):3561-4 |
abstractText | Inspection of the intron splice junction of the mouse chemokine receptor fusin/CXC chemokine receptor R-4 (CXCR-4) revealed a potential in-frame alternative splice site in the region encoding the N-terminal ectodomain of the receptor. Both predicted splice products were detected by reverse transcriptase-PCR. Cell lines of T lymphocyte, B lymphocyte, and macrophage lineage, plus populations of elicited peritoneal exudate cells, thymocytes, and astrocytes coexpressed mRNA for both isoforms. The full length cDNA of the shorter alternate splice product, termed CXCR-4B, was cloned from peritoneal exudate cell RNA. Chinese hamster ovary cells transfected with either isoform, CXCR-4A or CXCR-4B, responded to stromal cell-derived factor-1alpha with a rise in intracellular calcium. Both alternate splice products are therefore functional stromal cell-derived factor-1 alpha receptors. |