3.4.23.4: chymosin

This is an abbreviated version!
For detailed information about chymosin, go to the full flat file.

Broad specificity similar to that of pepsin A. Clots milk by cleavage of a single Ser-Phe105-/-Met-Ala bond in kappa-chain of casein =

CHY-MAX, CHY-MAX 200, chymase, chymosin, chymosin A, chymosin B, CYM, EC 3.4.4.3, More, Preprorennin, prochymosin, rCH, rennin

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Results	in table
3	Activating Compound
30	AA Sequence
14	Application
1	CAS Registry Number
28	Cloned(Commentary)
10	Crystallization (Commentary)
212	Disease/ Diagnostics
1	General Information
1	General Stability
20	Inhibitors
4	kcat/KM [mM/s]
59	KM Value [mM]
1	Localization
9	Metals/Ions
20	Molecular Weight [Da]
61	Natural Substrates/ Products (Substrates)
1	Organic Solvent Stability
83	Organism
9	PDB ID
20	pH Optimum
20	pH Range
10	pH Stability
2	pI Value
8	Posttranslational Modification
14	Protein Variants
22	Purification (Commentary)
1	Reaction
2	Reaction Type
83	Reference
3	Renatured (Commentary)
23	Source Tissue
3	Specific Activity [micromol/min/mg]
6	Storage Stability
180	Substrates and Products (Substrate)
25	Subunits
26	Synonyms
23	Temperature Optimum [°C]
11	Temperature Range [°C]
22	Temperature Stability [°C]
43	Turnover Number [1/s]

Storage Stability on EC 3.4.23.4 - chymosin

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-20°C, Tris-HCl buffer, pH 8.0, glycerol

0-20°C, at pH 5.5, 8 h, no loss of activity

40°C, at pH 5.5, 8 h, 37.5% residual activity

4°C, at pH 3.0 and 6.2, 3 days, maximum stability

50°C, at pH 5.5, complete loss of activity

very stable below 5°C, suspension of crystals