3.4.23.1: pepsin A
This is an abbreviated version!
For detailed information about pepsin A, go to the full flat file.
Word Map on EC 3.4.23.1
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3.4.23.1
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gastric
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mucosa
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porcine
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ulcer
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pylori
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helicobacter
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stomach
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gastritis
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proteinases
-
peptic
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juice
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chymosin
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atrophic
-
zymogen
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pepstatin
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reflux
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isozymogens
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gastricsin
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endoscopy
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omeprazole
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progastricsins
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prosegment
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fundic
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pentagastrin
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prochymosins
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milk-clotting
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medicine
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synthesis
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abomasum
-
hypergastrinaemia
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nutrition
-
pylori-positive
-
analysis
-
food industry
- 3.4.23.1
- gastric
- mucosa
- porcine
- ulcer
- pylori
- helicobacter
- stomach
- gastritis
- proteinases
-
peptic
- juice
- chymosin
-
atrophic
- zymogen
- pepstatin
- reflux
-
isozymogens
- gastricsin
-
endoscopy
- omeprazole
- progastricsins
- prosegment
-
fundic
- pentagastrin
- prochymosins
-
milk-clotting
- medicine
- synthesis
- abomasum
-
hypergastrinaemia
- nutrition
-
pylori-positive
- analysis
- food industry
Reaction
Preferential cleavage: hydrophobic, preferably aromatic, residues in P1 and P1' positions. Cleaves Phe1-/-Val, Gln4-/-His, Glu13-/-Ala, Ala14-/-Leu, Leu15-/-Tyr, Tyr16-/-Leu, Gly23-/-Phe, Phe24-/-Phe and Phe25-/-Tyr bonds in the B chain of insulin =
Synonyms
Aspartic proteinase, EC 3.4.4.1, elixir lactate of pepsin, fundus-pepsin, lactated pepsin, lactated pepsin elixir, P I, P-Ia, P-Ib, P-II, P-III, pep/PAG-L, pepsin, pepsin 1, pepsin A, pepsin A1, pepsin A2, pepsin D, pepsin fortior, Pepsin I/II, pepsin R, pepsinogen A, pepsinogen/PAG-Like, pepsins A1, pepsins A2, PG1, PG1-1, PG2, PG2-2, shewasin A, shewasin D
ECTree
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Specific Activity
Specific Activity on EC 3.4.23.1 - pepsin A
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additional information
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30.71 U/mg protein. One unit is defined as the amount causing an increase of 1.0 in absorbance at 280 nm per min
additional information
the specific activity of the crude extract and 7.9fold purified enzyme are 4.0 and 31.5 units/mg. One unit of pepsin activity is defined as an increase of absorbance of 1.0 at 280 nm during an incubation time of 30 min at pH 3.0 and 37°C
additional information
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the specific activity of the crude extract and 8.4fold purified enzyme are 1.8 and 15.1 units/mg. One unit of pepsin activity is defined as an increase of absorbance of 1.0 at 280 nm during an incubation time of 30 min at pH 3.0 and 37°C