K. Hosang et al., PORCINE LUTEAL CELLS EXPRESS MONOCYTE CHEMOATTRACTANT PROTEIN-1 (MCP-1) - ANALYSIS BY POLYMERASE CHAIN-REACTION AND CDNA CLONING, Biochemical and biophysical research communications, 199(2), 1994, pp. 962-968
RT PCR employing poly(A+)RNA from porcine luteal cells and a combinati
on of primers designed from the known bovine MCP-1 cDNA identified the
luteal cells as a source of MCP-1. This finding is corroborated by re
sults from Northern analysis using total RNA from luteal cells. To cha
racterize the complete porcine MCP-1 cDNA, poly (A+)RNA was isolated f
rom porcine corpus luteum, transcribed into cDNA and the latter cloned
into the expression vector lambda Uni-ZapXR. A digoxigenin-labeled DN
A probe of 375 bp was obtained by PCR and employed to screen the libra
ry. From the positive clones pMCP5, pMCP7 and pMCP10, the clone pMCP5
was selected and both strands of the cDNA insert were sequenced. The c
DNA insert was 742 bp long, with an open reading frame (ORF) encoding
a protein of 99 amino acid residues which by comparison with known ami
no acid sequences of MCPs yielded highest identities with MCP-1 sequen
ces. We therefore assume that pMCP5 encodes the amino acid sequence fo
r porcine MCP-1. (C) 1994 Academic Press, Inc.