The name of this superfamily has been modified since the most recent official CATH+ release (v4_2_0). At the point of the last release, this superfamily was named:
"Acid Proteases
".
FunFam 22892: Pepsinogen 4, group I (Pepsinogen A)
There are 4 EC terms in this cluster
Please note: EC annotations are assigned to the full protein sequence rather than individual protein domains. Since a given protein can contain multiple domains, it is possible that some of the annotations below come from additional domains that occur in the same protein, but have been classified elsewhere in CATH.
Note: The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
EC Term | Annotations | Evidence |
---|---|---|
Pepsin A.
[EC: 3.4.23.1]
Preferential cleavage: hydrophobic, preferably aromatic, residues in P1 and P1' positions. Cleaves 1-Phe-|-Val-2, 4-Gln-|-His-5, 13-Glu-|-Ala-14, 14-Ala-|-Leu-15, 15-Leu-|-Tyr-16, 16-Tyr-|-Leu-17, 23-Gly-|-Phe-24, 24-Phe-|-Phe-25 and 25-Phe-|-Tyr-26 bonds in the B chain of insulin.
|
33 |
A0A172Q3Y6
B9A837
B9A838
B9A839
B9A840
B9A841
B9A842
B9A844
B9A845
B9A847 (23 more...) |
Chymosin.
[EC: 3.4.23.4]
Broad specificity similar to that of pepsin A. Clots milk by cleavage of a single 104-Ser-Phe-|-Met-Ala-107 bond in kappa-chain of casein.
|
12 |
A0A061IRD0
A9LY78
C0LTP1
M4LK61
P00794
P18276
Q8SPG9
Q8SPH0
Q8SPH1
Q9GK11 (2 more...) |
Cathepsin E.
[EC: 3.4.23.34]
Similar to cathepsin D, but slightly broader specificity.
|
10 | A0A1L8H7D5 B7ZQ61 P14091 P16228 P25796 P43159 P70269 Q800A0 Q805F2 Q805F3 |
Gastricsin.
[EC: 3.4.23.3]
More restricted specificity than pepsin A, but shows preferential cleavage at Tyr-|-Xaa bonds. High activity on hemoglobin.
|
8 | B9A851 G3I107 P03955 P04073 P20142 Q9D7R7 Q9GMY2 Q9N2D3 |