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Literature summary extracted from
- Peptide substrate profiling defines fibroblast activation protein as an endopeptidase of strict Gly(2)-Pro(1)-cleaving specificity (2006), FEBS Lett., 580, 1581-1586.
KM Value [mM]
| EC Number | KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|---|
| 3.4.21.B28 | 0.0006 | - |
Arg-Lys-(4-(4-dimethylaminophenylazo)benzoyl)-Thr-Ser-D-Ser-Pro-Asn-Gln-Glu-Gln-Glu(5-[(2-aminoethyl)amino]naphthalene-1-sulfonic acid)-Arg | 23°C | Homo sapiens |  |
| 3.4.21.B28 | 0.0007 | - |
Thr-Ala-Gly-Pro-Asn-Gln | 23°C | Homo sapiens | |
| 3.4.21.B28 | 0.0008 | - |
Arg-Lys-(4-(4-dimethylaminophenylazo)benzoyl)-Thr-Ser-D-Ala-Pro-Asn-Gln-Glu-Gln-Glu(5-[(2-aminoethyl)amino]naphthalene-1-sulfonic acid)-Arg | 23°C | Homo sapiens | |
| 3.4.21.B28 | 0.0013 | - |
Thr-Ser-Gly-Pro-Asn-Gln | 23°C | Homo sapiens | |
| 3.4.21.B28 | 0.0019 | - |
Thr-Ser-Gly-Pro-Ser-Gln | 23°C | Homo sapiens | |
| 3.4.21.B28 | 0.0022 | - |
Ala-Ser-Gly-Pro-Asn-Gln | 23°C | Homo sapiens | |
| 3.4.21.B28 | 0.0022 | - |
Thr-Ser-Gly-Pro-Asn-Ser | 23°C | Homo sapiens | |
| 3.4.21.B28 | 0.0043 | - |
Ala-Ser-Gly-Pro-Ser-Ser | 23°C | Homo sapiens | |
| 3.4.21.B28 | 0.213 | - |
D-Ala-Pro-7-amido-4-trifluoromethylcoumarin | 23°C | Homo sapiens | |
| 3.4.21.B28 | 0.541 | - |
acetyl-D-Ala-Pro-7-amido-4-trifluoromethylcoumarin | 23°C | Homo sapiens | |
Organism
| EC Number | Organism | UniProt | Comment | Textmining |
|---|---|---|---|---|
| 3.4.21.B28 | Homo sapiens | Q12884 | - |
- |
Reaction
| EC Number | Reaction | Comment | Organism | Reaction ID |
|---|---|---|---|---|
| 3.4.21.B28 | fibroblast activation protein requires substrates with Pro at P1 and Gly or D-amino acids at P2. Met-alpha2-antiplasmin is cleaved N-terminally at Pro3-Leu4 and Pro12-Asn13 into Asn-alpha2-antiplasmin that is rapidly cross-linked to fibrin and protects it from digestion by plasmin | besides glycine, fibroblast activation protein tolerates substrates with D-Ala and D-Ser at P2. Fibroblast activation protein prefers small, uncharged amino acids at P3, but tolerates most amino acids at P4, P1' and P2' | Homo sapiens |
Substrates and Products (Substrate)
| EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 3.4.21.B28 | acetyl-D-Ala-Pro-7-amido-4-trifluoromethylcoumarin + H2O | - |
Homo sapiens | acetyl-D-Ala-Pro + 7-amino-4-trifluoromethylcoumarin | - |
? | |
| 3.4.21.B28 | Ala-Ser-Gly-Pro-Asn-Gln + H2O | - |
Homo sapiens | Ala-Ser-Gly-Pro + Asn-Gln | - |
? | |
| 3.4.21.B28 | Ala-Ser-Gly-Pro-Ser-Ser + H2O | - |
Homo sapiens | Ala-Ser-Gly-Pro + Ser-Ser | - |
? | |
| 3.4.21.B28 | Arg-Lys-(4-(4-dimethylaminophenylazo)benzoyl)-Thr-Ser-D-Ala-Pro-Asn-Gln-Glu-Gln-Glu(5-[(2-aminoethyl)amino]naphthalene-1-sulfonic acid)-Arg + H2O | - |
Homo sapiens | Arg-Lys-(4-(4-dimethylaminophenylazo)benzoyl)-Thr-Ser-D-Ala-Pro + Asn-Gln-Glu-Gln-Glu(5-[(2-aminoethyl)amino]naphthalene-1-sulfonic acid)-Arg | - |
? | |
| 3.4.21.B28 | Arg-Lys-(4-(4-dimethylaminophenylazo)benzoyl)-Thr-Ser-D-Ser-Pro-Asn-Gln-Glu-Gln-Glu(5-[(2-aminoethyl)amino]naphthalene-1-sulfonic acid)-Arg + H2O | - |
Homo sapiens | Arg-Lys-(4-(4-dimethylaminophenylazo)benzoyl)-Thr-Ser-D-Ser-Pro + Asn-Gln-Glu-Gln-Glu(5-[(2-aminoethyl)amino]naphthalene-1-sulfonic acid)-Arg | - |
? | |
| 3.4.21.B28 | D-Ala-Pro-7-amido-4-trifluoromethylcoumarin + H2O | - |
Homo sapiens | D-Ala-Pro + 7-amino-4-trifluoromethylcoumarin | - |
? | |
| 3.4.21.B28 | additional information | fibroblast activation protein requires substrates with Pro at P1 and Gly or D-amino acids at P2. Besides glycine, fibroblast activation protein tolerates substrates with D-Ala and D-Ser at P2. Fibroblast activation protein prefers small, uncharged amino acids at P3, but tolerates most amino acids at P4, P1' and P2' | Homo sapiens | ? | - |
? | |
| 3.4.21.B28 | Thr-Ala-Gly-Pro-Asn-Gln + H2O | - |
Homo sapiens | Thr-Ala-Gly-Pro + Asn-Gln | - |
? | |
| 3.4.21.B28 | Thr-Ser-Gly-Pro-Asn-Gln + H2O | - |
Homo sapiens | Thr-Ser-Gly-Pro + Asn-Gln | - |
? | |
| 3.4.21.B28 | Thr-Ser-Gly-Pro-Asn-Ser + H2O | - |
Homo sapiens | Thr-Ser-Gly-Pro + Asn-Ser | - |
? | |
| 3.4.21.B28 | Thr-Ser-Gly-Pro-Ser-Gln + H2O | - |
Homo sapiens | Thr-Ser-Gly-Pro + Ser-Gln | - |
? | |
Synonyms
| EC Number | Synonyms | Comment | Organism |
|---|---|---|---|
| 3.4.21.B28 | FAP | - |
Homo sapiens |
| 3.4.21.B28 | fibroblast activation protein | - |
Homo sapiens |
Turnover Number [1/s]
| EC Number | Turnover Number Minimum [1/s] | Turnover Number Maximum [1/s] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|---|
| 3.4.21.B28 | 0.19 | - |
Arg-Lys-(4-(4-dimethylaminophenylazo)benzoyl)-Thr-Ser-D-Ala-Pro-Asn-Gln-Glu-Gln-Glu(5-[(2-aminoethyl)amino]naphthalene-1-sulfonic acid)-Arg | 23°C | Homo sapiens | |
| 3.4.21.B28 | 0.22 | - |
Arg-Lys-(4-(4-dimethylaminophenylazo)benzoyl)-Thr-Ser-D-Ser-Pro-Asn-Gln-Glu-Gln-Glu(5-[(2-aminoethyl)amino]naphthalene-1-sulfonic acid)-Arg | 23°C | Homo sapiens | |
| 3.4.21.B28 | 0.3 | - |
acetyl-D-Ala-Pro-7-amido-4-trifluoromethylcoumarin | 23°C | Homo sapiens | |
| 3.4.21.B28 | 1.5 | - |
Thr-Ala-Gly-Pro-Asn-Gln | 23°C | Homo sapiens | |
| 3.4.21.B28 | 1.5 | - |
D-Ala-Pro-7-amido-4-trifluoromethylcoumarin | 23°C | Homo sapiens | |
| 3.4.21.B28 | 1.6 | - |
Thr-Ser-Gly-Pro-Asn-Gln | 23°C | Homo sapiens | |
| 3.4.21.B28 | 2 | - |
Thr-Ser-Gly-Pro-Ser-Gln | 23°C | Homo sapiens | |
| 3.4.21.B28 | 2.7 | - |
Ala-Ser-Gly-Pro-Asn-Gln | 23°C | Homo sapiens | |
| 3.4.21.B28 | 3.1 | - |
Thr-Ser-Gly-Pro-Asn-Ser | 23°C | Homo sapiens | |
| 3.4.21.B28 | 5.5 | - |
Ala-Ser-Gly-Pro-Ser-Ser | 23°C | Homo sapiens | |
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