PDB: 4pep Compound: Pepsin Classification: HYDROLASE (ACID PROTEINASE) Entry date in PDB: 1990-04-15 Resolution [Å]: 1.80 R-Factor: 0.174

CHAIN: - SWISS-PROT/TREMBL: P00791    KEYWORD: 3D-structure    Aspartyl protease    Digestion    Hydrolase    Phosphorylation    Signal    Zymogen    EC: 3.4.23.1 SCOP: b.50.1.2 All beta proteins    Acid proteases    Acid proteases    Pepsin-like    Pepsin(ogen)    Pig (Sus scrofa) GO:  aspartic-type endopeptidase activity    pepsin A activity    proteolysis and peptidolysis

Image Source: PDB

Loops in ArchDB95 clusters

4pep_*_221 - EH => SUBCLASS : 1.1.1
4pep_*_246 - EH => SUBCLASS : 1.1.2
4pep_*_180 - AR => SUBCLASS : 7.30.1
4pep_*_163 - AR => SUBCLASS : 12.2.1
4pep_*_191 - HA => SUBCLASS : 2.1.1
4pep_*_274 - HA => SUBCLASS : 2.1.1
4pep_*_191 - HA => SUBCLASS : 2.5.1
4pep_*_2 - HA => SUBCLASS : 3.7.1

Loops in ArchDB-EC clusters

4pep_*_110 - HE => SUBCLASS : 4.42.1

Loops not clustered in ArchDB

4pep_*_286 - AR
4pep_*_210 - AR
4pep_*_281 - AR
4pep_*_38 - AR
4pep_*_25 - AR
4pep_*_25 - AR
4pep_*_38 - AR
4pep_*_163 - AR
4pep_*_180 - AR
4pep_*_202 - AR
4pep_*_210 - AR
4pep_*_281 - AR
4pep_*_286 - AR
4pep_*_202 - AR
4pep_*_94 - EH
4pep_*_299 - EH
4pep_*_119 - EH
4pep_*_265 - EH
4pep_*_78 - HA
4pep_*_150 - HA
4pep_*_191 - HA
4pep_*_150 - HA
4pep_*_258 - HA
4pep_*_274 - HA
4pep_*_65 - HA
4pep_*_309 - HA
4pep_*_78 - HA
4pep_*_13 - HA
4pep_*_258 - HA
4pep_*_65 - HA
4pep_*_2 - HA
4pep_*_13 - HA
4pep_*_309 - HA
4pep_*_136 - HE
4pep_*_225 - HE
4pep_*_250 - HE
4pep_*_303 - HE
4pep_*_271 - HE

1f34 A - percentage of sequence identity: 99
1flh A - percentage of sequence identity: 85
1psa A - percentage of sequence identity: 99
1psa B - percentage of sequence identity: 99
1psn - - percentage of sequence identity: 85
1yx9 A - percentage of sequence identity: 99
2psg - - percentage of sequence identity: 100
3pep - - percentage of sequence identity: 100
5pep - - percentage of sequence identity: 99