Lysophospholipase and lysophosphatidylcholine:Lysophosphatidylcholine transacylase from rat lung: Evidence for a single enzyme and some aspects of its specificity
Archives of Biochemistry and Biophysics, ISSN: 0003-9861, Vol: 190, Issue: 2, Page: 373-384
1978
- 38Citations
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Metrics Details
- Citations38
- Citation Indexes38
- CrossRef38
- 35
Article Description
An enzyme preparation was isolated from rat lung cytosol with the capability to transfer the fatty acyl chain from 1-acyl- sn -glycero-3-phosphocholine to water and to another molecule of 1-acyl- sn -glycero-3-phosphocholine. The evidence presented to indicate that a single protein confers both activities includes: (a) both normal and sodium dodecyl sulfate polyacrylamide disc gel electrophoresis showed a single protein band, and (b) heat treatment and preincubation with increasing amounts of diisopropylfluorophosphate resulted in concomitant loss of fatty acid and phosphatidylcholine formation. The enzyme converted 1-[9,10- 3 H 2 ]stearoyl- sn -glycero-3-phospho[ 14 C- methyl ]choline into phosphatidylcholine with an isotopic 3 H/ 14 C ratio twice that of the substrate, even when an excess of unlabeled fatty acid was present. The acyl group from palmitoyl-propanediol (1,3)-phosphocholine and palmitoyl-propanediol (1,3)-phosphoethanolamine could be transferred to lysophosphatidylcholine acceptor to yield phosphatidylcholine. Neither acylglycerols and cholesterol nor glycero-3-phosphate and glycero-3-phosphocholine served as acyl acceptors. Lysophosphatidylethanolamine and lysophosphatidyglycerol were converted also into the corresponding diacylphospholipids. Palmitoyllysophosphatidylcholine is preferentially converted into phosphatidylcholine when compared with stearoyllysophosphatidylcholine. The possible involvement of the enzyme in the synthesis of dipalmitoylphosphatidylcholine for the production of lung surfactant is discussed.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/0003986178902904; http://dx.doi.org/10.1016/0003-9861(78)90290-4; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0018137638&origin=inward; http://www.ncbi.nlm.nih.gov/pubmed/718159; https://linkinghub.elsevier.com/retrieve/pii/0003986178902904; http://dx.doi.org/10.1016/0003-9861%2878%2990290-4; https://dx.doi.org/10.1016/0003-9861%2878%2990290-4
Elsevier BV
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