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:

"
Plasminogen Kringle 4
".

Functional Families

Overview of the Structural Clusters (SC) and Functional Families within this CATH Superfamily. Clusters with a representative structure are represented by a filled circle.
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FunFam 1699: Urokinase-type plasminogen activator amino-termina...

There are 3 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
T-plasminogen activator. [EC: 3.4.21.68]
Specific cleavage of Arg-|-Val bond in plasminogen to form plasmin.
  • From a wide variety of mammalian tissues, especially endothelial cells.
  • Secreted as a single chain precursor which is cleaved to a two-chain form by plasmin.
  • Activity is considerably enhanced by fibrin.
  • Belongs to peptidase family S1.
  • Formerly EC 3.4.21.31 and EC 3.4.99.26.
198 A0A087QGQ9 A0A087QGQ9 A0A087V5C3 A0A087V5C3 A0A091FM61 A0A091FM61 A0A091GNM4 A0A091GNM4 A0A091ISA5 A0A091ISA5
(188 more...)
U-plasminogen activator. [EC: 3.4.21.73]
Specific cleavage of Arg-|-Val bond in plasminogen to form plasmin.
  • Formed from the inactive precursor by action of plasmin or plasma kallikrein.
  • Differs in structure from EC 3.4.21.68, and does not bind to fibrin.
  • Belongs to peptidase family S1.
  • Formerly EC 3.4.21.31 and EC 3.4.99.26.
10 A0A024QZM9 P00749 P04185 P06869 P16227 P29598 Q05589 Q0VBA8 Q5RF29 Q8MHY7
Coagulation factor XIIa. [EC: 3.4.21.38]
Selective cleavage of Arg-|-Ile bonds in factor VII to form factor VIIa and factor XI to form factor XIa.
  • Also activates plasma prekallikrein and plasminogen.
  • Formed from the proenzyme, factor XII, by plasma kallikrein or factor XIIa.
  • Belongs to peptidase family S1.
5 A0A061IBV4 A0A061IEF7 D3ZTE0 P00748 Q04962
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