On cholinesterase activity and some physicochemical properties of fractions prepared from heat-treated myosin solutions

Kover, A. ; Szoor, A. ; Szabolcs, M.

Amsterdam : Elsevier
ISSN:
0003-9861
Source:
Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
Topics:
Biology
Chemistry and Pharmacology
Physics
Type of Medium:
Electronic Resource
URL:
_version_ 1798292182933700608
autor Kover, A.
Szoor, A.
Szabolcs, M.
autorsonst Kover, A.
Szoor, A.
Szabolcs, M.
book_url http://dx.doi.org/10.1016/0003-9861(64)90294-2
datenlieferant nat_lic_papers
fussnote A cholinesterase fraction (S"1) having a sedimentation coefficient of 2.9 S was found to be released from myosin solution by a heat treatment carried out at 53 ^o and pH 6.2 for 5 minutes. It could be resolved by dialyzing into a P"1-fraction of 3.76 S precipitating at a low ionic strength, and a D"1-fraction of 1.45 S remaining in solution under the same conditions. The cholinesterase activity has mainly passed into the P"1-fraction or, after its heat treatment, into the P"2-fraction. The specific activities of the P"1 and P"2 fractions were much more higher (55 and 120 μg acetylcholine (ACh) per milligram protein per hour, respectively) than that of the original myosin solution (8-10 μg Ach/mg prot./hour) or D"1-fraction (5-6 μg ACh per milligram protein per hour).If previous to heat treatment a short tryptic digestion was applied, the properties of heat-supernatant (S"1) principally changed as at reducing of its ionic strength by dialyzing, the great part of its protein content and cholinesterase activity was obtained in the D"1-fraction. In this case the specific activity of the D"1-fraction was considerably more (50 μg Ach/mg prot./hour) than that of the P"1-fraction (17 μg Ach/mg prot./hour).
hauptsatz hsatz_simple
identnr NLZ183913698
issn 0003-9861
journal_name Archives of Biochemistry and Biophysics
materialart 1
package_name Elsevier
publikationsort Amsterdam
publisher Elsevier
reference 107 (1964), S. 382-387
search_space articles
shingle_author_1 Kover, A.
Szoor, A.
Szabolcs, M.
shingle_author_2 Kover, A.
Szoor, A.
Szabolcs, M.
shingle_author_3 Kover, A.
Szoor, A.
Szabolcs, M.
shingle_author_4 Kover, A.
Szoor, A.
Szabolcs, M.
shingle_catch_all_1 Kover, A.
Szoor, A.
Szabolcs, M.
On cholinesterase activity and some physicochemical properties of fractions prepared from heat-treated myosin solutions
0003-9861
00039861
Elsevier
shingle_catch_all_2 Kover, A.
Szoor, A.
Szabolcs, M.
On cholinesterase activity and some physicochemical properties of fractions prepared from heat-treated myosin solutions
0003-9861
00039861
Elsevier
shingle_catch_all_3 Kover, A.
Szoor, A.
Szabolcs, M.
On cholinesterase activity and some physicochemical properties of fractions prepared from heat-treated myosin solutions
0003-9861
00039861
Elsevier
shingle_catch_all_4 Kover, A.
Szoor, A.
Szabolcs, M.
On cholinesterase activity and some physicochemical properties of fractions prepared from heat-treated myosin solutions
0003-9861
00039861
Elsevier
shingle_title_1 On cholinesterase activity and some physicochemical properties of fractions prepared from heat-treated myosin solutions
shingle_title_2 On cholinesterase activity and some physicochemical properties of fractions prepared from heat-treated myosin solutions
shingle_title_3 On cholinesterase activity and some physicochemical properties of fractions prepared from heat-treated myosin solutions
shingle_title_4 On cholinesterase activity and some physicochemical properties of fractions prepared from heat-treated myosin solutions
sigel_instance_filter dkfz
geomar
wilbert
ipn
albert
fhp
source_archive Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
timestamp 2024-05-06T08:44:28.167Z
titel On cholinesterase activity and some physicochemical properties of fractions prepared from heat-treated myosin solutions
titel_suche On cholinesterase activity and some physicochemical properties of fractions prepared from heat-treated myosin solutions
A cholinesterase fraction (S"1) having a sedimentation coefficient of 2.9 S was found to be released from myosin solution by a heat treatment carried out at 53 ^o and pH 6.2 for 5 minutes. It could be resolved by dialyzing into a P"1-fraction of 3.76 S precipitating at a low ionic strength, and a D"1-fraction of 1.45 S remaining in solution under the same conditions. The cholinesterase activity has mainly passed into the P"1-fraction or, after its heat treatment, into the P"2-fraction. The specific activities of the P"1 and P"2 fractions were much more higher (55 and 120 μg acetylcholine (ACh) per milligram protein per hour, respectively) than that of the original myosin solution (8-10 μg Ach/mg prot./hour) or D"1-fraction (5-6 μg ACh per milligram protein per hour).If previous to heat treatment a short tryptic digestion was applied, the properties of heat-supernatant (S"1) principally changed as at reducing of its ionic strength by dialyzing, the great part of its protein content and cholinesterase activity was obtained in the D"1-fraction. In this case the specific activity of the D"1-fraction was considerably more (50 μg Ach/mg prot./hour) than that of the P"1-fraction (17 μg Ach/mg prot./hour).
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