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J Biol Chem, Vol. 273, Issue 15, 8680-8690, April 10, 1998
Binding of Bacterial Peptidoglycan to CD14
Roman
Dziarski ,
Richard I.
Tapping¶, and
Peter S.
Tobias¶
From the Northwest Center for Medical Education,
Indiana University School of Medicine, Gary, Indiana 46408 and
the ¶ Department of Immunology, The Scripps Research Institute,
La Jolla, California 92037
The hypothesis that soluble peptidoglycan (sPGN,
a macrophage-activator from Gram-positive bacteria) binds to CD14 (a
lipopolysaccharide (LPS) receptor) was tested. sPGN specifically bound
to CD14 in the following three assays: binding of soluble
32P-CD14 (sCD14) to agarose-immobilized sPGN,
enzyme-linked immunosorbent assay, and photoaffinity cross-linking.
sCD14 also specifically bound to agarose-immobilized muramyl dipeptide
or GlcNAc-muramyl dipeptide but not to PGN pentapeptide. Binding of
sCD14 to both sPGN and ReLPS (where ReLPS is LPS from Salmonella
minnesota Re 595) was competitively inhibited by unlabeled sCD14,
1-152 N-terminal fragment of sCD14, sPGN, smooth LPS, ReLPS, lipid A,
and lipoteichoic acid but not by dextran, dextran sulfate, heparin,
ribitol teichoic acid, or soluble low molecular weight PGN fragments.
Binding of sCD14 to sPGN was slower than to ReLPS but of higher
affinity (KD = 25 nM versus
41 nM). LPS-binding protein (LBP) increased the binding of
sCD14 to sPGN by adding another lower affinity KD
and another higher Bmax, but for ReLPS, LBP increased the affinity of binding by yielding two
KD with significantly higher affinity (7.1 and
27 nM). LBP also enhanced inhibition of sCD14
binding by LPS, ReLPS, and lipid A. Binding of sCD14 to both sPGN and
ReLPS was inhibited by anti-CD14 MEM-18 mAb, but other anti-CD14 mAbs
showed differential inhibition, suggesting conformational binding sites
on CD14 for sPGN and LPS, that are partially identical and partially
different.
Copyright © 1998 by The American Society for Biochemistry and Molecular Biology, Inc.

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J. Biol. Chem.,
February 4, 2000;
275(5):
3144 - 3149.
[Abstract]
[Full Text]
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M. G. Scott, M. R. Gold, and R. E. W. Hancock
Interaction of Cationic Peptides with Lipoteichoic Acid and Gram-Positive Bacteria
Infect. Immun.,
December 1, 1999;
67(12):
6445 - 6453.
[Abstract]
[Full Text]
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A. Sediva, K. Smetana Jr., J. Stejskal, J. Bartunkova, F.-T. Liu, N. V. Bovin, and H.-J. Gabius
Binding sites for carrier-immobilized carbohydrates in the kidney: implication for the pathogenesis of Henoch-Schonlein purpura and/or IgA nephropathy
Nephrol. Dial. Transplant.,
December 1, 1999;
14(12):
2885 - 2891.
[Abstract]
[Full Text]
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A. Yoshimura, E. Lien, R. R. Ingalls, E. Tuomanen, R. Dziarski, and D. Golenbock
Cutting Edge: Recognition of Gram-Positive Bacterial Cell Wall Components by the Innate Immune System Occurs Via Toll-Like Receptor 2
J. Immunol.,
July 1, 1999;
163(1):
1 - 5.
[Abstract]
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R. Schwandner, R. Dziarski, H. Wesche, M. Rothe, and C. J. Kirschning
Peptidoglycan- and Lipoteichoic Acid-induced Cell Activation Is Mediated by Toll-like Receptor 2
J. Biol. Chem.,
June 18, 1999;
274(25):
17406 - 17409.
[Abstract]
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O. D. Moffatt, A. Devitt, E. D. Bell, D. L. Simmons, and C. D. Gregory
Macrophage Recognition of ICAM-3 on Apoptotic Leukocytes
J. Immunol.,
June 1, 1999;
162(11):
6800 - 6810.
[Abstract]
[Full Text]
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D. Gupta, Q. Wang, C. Vinson, and R. Dziarski
Bacterial Peptidoglycan Induces CD14-dependent Activation of Transcription Factors CREB/ATF and AP-1
J. Biol. Chem.,
May 14, 1999;
274(20):
14012 - 14020.
[Abstract]
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P. A. Majcherczyk, H. Langen, D. Heumann, M. Fountoulakis, M. P. Glauser, and P. Moreillon
Digestion of Streptococcus pneumoniae Cell Walls with Its Major Peptidoglycan Hydrolase Releases Branched Stem Peptides Carrying Proinflammatory Activity
J. Biol. Chem.,
April 30, 1999;
274(18):
12537 - 12543.
[Abstract]
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M. Ochiai and M. Ashida
A Pattern Recognition Protein for Peptidoglycan. CLONING THE cDNA AND THE GENE OF THE SILKWORM, BOMBYX MORI
J. Biol. Chem.,
April 23, 1999;
274(17):
11854 - 11858.
[Abstract]
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A. Cauwels, K. Frei, S. Sansano, C. Fearns, R. Ulevitch, W. Zimmerli, and R. Landmann
The Origin and Function of Soluble CD14 in Experimental Bacterial Meningitis
J. Immunol.,
April 15, 1999;
162(8):
4762 - 4772.
[Abstract]
[Full Text]
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R. Dziarski and D. Gupta
Function of CD14 as a peptidoglycan receptor: differences and similarities with LPS
Innate Immunity,
February 1, 1999;
5(1-2):
56 - 61.
[Abstract]
[PDF]
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P.-y. Wang, R. L. Kitchens, and R. S. Munford
Phosphatidylinositides Bind to Plasma Membrane CD14 and Can Prevent Monocyte Activation by Bacterial Lipopolysaccharide
J. Biol. Chem.,
September 18, 1998;
273(38):
24309 - 24313.
[Abstract]
[Full Text]
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C. Liu, E. Gelius, G. Liu, H. Steiner, and R. Dziarski
Mammalian Peptidoglycan Recognition Protein Binds Peptidoglycan with High Affinity, Is Expressed in Neutrophils, and Inhibits Bacterial Growth
J. Biol. Chem.,
August 4, 2000;
275(32):
24490 - 24499.
[Abstract]
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H. Mitsuzawa, I. Wada, H. Sano, D. Iwaki, S. Murakami, T. Himi, N. Matsushima, and Y. Kuroki
Extracellular Toll-Like Receptor 2 Region Containing Ser40-Ile64 but Not Cys30-Ser39 Is Critical for the Recognition of Staphylococcus aureus Peptidoglycan
J. Biol. Chem.,
October 26, 2001;
276(44):
41350 - 41356.
[Abstract]
[Full Text]
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C. Liu, Z. Xu, D. Gupta, and R. Dziarski
Peptidoglycan Recognition Proteins. A NOVEL FAMILY OF FOUR HUMAN INNATE IMMUNITY PATTERN RECOGNITION MOLECULES
J. Biol. Chem.,
September 7, 2001;
276(37):
34686 - 34694.
[Abstract]
[Full Text]
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Z.-M. Wang, C. Liu, and R. Dziarski
Chemokines Are the Main Proinflammatory Mediators in Human Monocytes Activated by Staphylococcus aureus, Peptidoglycan, and Endotoxin
J. Biol. Chem.,
June 30, 2000;
275(27):
20260 - 20267.
[Abstract]
[Full Text]
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Copyright © 1998 by the American Society for Biochemistry and Molecular Biology.
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