|
|
||||||||
AJP - Lung Cellular and Molecular Physiology, Vol 261, Issue 2 118-L125, Copyright © 1991 by American Physiological Society
ARTICLES |
J. T. Stults, P. R. Griffin, D. D. Lesikar, A. Naidu, B. Moffat and B. J. Benson
Department of Protein Chemistry, Genentech, South San Francisco 94080.
Lung surfactant is a complex mixture of lipids and proteins that coats the alveoli to reduce surface tension and prevent airspace collapse. One of the principal protein constituents, surfactant protein C (SP-C), has been characterized following isolation from human, canine, and bovine sources. In each species, this highly hydrophobic protein is composed of 33-35 amino acids, the differences being due to NH2-terminal heterogeneity. A COOH-terminal leucine is conserved throughout. The cysteines in each species were found by fast atom bombardment mass spectrometry to be present as thioesters of palmitic acid. Acylation of recombinant SP-C with palmityl coenzyme A, followed by characterization before and after release of the acyl group with 1,4-dithiothreitol, provided corroborating evidence for the native structure.
This article has been cited by other articles:
![]() |
S. M. Pietschmann and U. Pison cDNA cloning of ovine pulmonary SP-A, SP-B, and SP-C: isolation of two different sequences for SP-B Am J Physiol Lung Cell Mol Physiol, April 1, 2000; 278(4): L765 - L778. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. F. Beers, C. A. Lomax, and S. J. Russo Synthetic Processing of Surfactant Protein C by Alevolar Epithelial Cells. THE COOH TERMINUS OF proSP-C IS REQUIRED FOR POST-TRANSLATIONAL TARGETING AND PROTEOLYSIS J. Biol. Chem., June 12, 1998; 273(24): 15287 - 15293. [Abstract] [Full Text] [PDF] |
||||
![]() |
Z. Wang, O. Gurel, J. E. Baatz, and R. H. Notter Acylation of Pulmonary Surfactant Protein-C Is Required for Its Optimal Surface Active Interactions with Phospholipids J. Biol. Chem., August 9, 1996; 271(32): 19104 - 19109. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. J. Conkright, J. P. Bridges, C.-L. Na, W. F. Voorhout, B. Trapnell, S. W. Glasser, and T. E. Weaver Secretion of Surfactant Protein C, an Integral Membrane Protein, Requires the N-terminal Propeptide J. Biol. Chem., April 27, 2001; 276(18): 14658 - 14664. [Abstract] [Full Text] [PDF] |
||||
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| Visit Other APS Journals Online |