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UniProtKB - Q12567 (PEPA_ASPPH)
Protein
Aspergillopepsin-1
Gene
pepA
Organism
Aspergillus phoenicis (Aspergillus saitoi)
Status
Functioni
Secreted aspartic endopeptidase that allows assimilation of proteinaceous substrates. The scissile peptide bond is attacked by a nucleophilic water molecule activated by two aspartic residues in the active site. Shows a broad primary substrate specificity. Favors hydrophobic residues at the P1 and P1' positions, but also accepts a lysine residue in the P1 position, leading to the activation of trypsinogen and chymotrypsinogen A.
3 PublicationsCatalytic activityi
- Hydrolysis of proteins with broad specificity. Generally favors hydrophobic residues in P1 and P1', but also accepts Lys in P1, which leads to activation of trypsinogen. Does not clot milk.1 Publication EC:3.4.23.18
pH dependencei
Optimum pH is 2.9-3.3.1 Publication
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Active sitei | 101 | PROSITE-ProRule annotation | 1 |
GO - Molecular functioni
- aspartic-type endopeptidase activity Source: UniProtKB-KW
Keywordsi
Molecular function | Aspartyl protease, Hydrolase, Protease |
Protein family/group databases
MEROPSi | A01.016 |
Names & Taxonomyi
Protein namesi | Recommended name: Aspergillopepsin-1Curated (EC:3.4.23.181 Publication)Alternative name(s): Aspartic protease pepA Aspergillopepsin I1 Publication Aspergillopeptidase A Protease type XIII |
Gene namesi | Name:pepA |
Organismi | Aspergillus phoenicis (Aspergillus saitoi) |
Taxonomic identifieri | 5063 [NCBI] |
Taxonomic lineagei | Eukaryota › Fungi › Dikarya › Ascomycota › Pezizomycotina › Eurotiomycetes › Eurotiomycetidae › Eurotiales › Aspergillaceae › Aspergillus |
Subcellular locationi
Extracellular region or secreted
- Secreted 1 Publication
Extracellular region or secreted
- extracellular region Source: UniProtKB-SubCell
Keywords - Cellular componenti
SecretedPathology & Biotechi
Mutagenesis
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Mutagenesisi | 145 | D → S: Changes specificity toward basic substrates. 1 Publication | 1 |
Protein family/group databases
Allergomei | 8264, Asp sa AP |
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Signal peptidei | 1 – 20 | Sequence analysisAdd BLAST | 20 | |
PropeptideiPRO_0000025924 | 21 – 69 | Activation peptide1 PublicationAdd BLAST | 49 | |
ChainiPRO_0000025925 | 70 – 394 | Aspergillopepsin-1Add BLAST | 325 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Glycosylationi | 129 | O-linked (Man...) serine1 Publication | 1 | |
Glycosylationi | 304 | O-linked (Man...) serine1 Publication | 1 | |
Disulfide bondi | 319 ↔ 354 | PROSITE-ProRule annotation1 Publication |
Keywords - PTMi
Disulfide bond, Glycoprotein, ZymogenPTM databases
iPTMneti | Q12567 |
Interactioni
Subunit structurei
Monomer.
1 PublicationStructurei
Secondary structure
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details3D structure databases
SMRi | Q12567 |
ModBasei | Search... |
PDBe-KBi | Search... |
Miscellaneous databases
EvolutionaryTracei | Q12567 |
Family & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Domaini | 85 – 391 | Peptidase A1PROSITE-ProRule annotationAdd BLAST | 307 |
Sequence similaritiesi
Belongs to the peptidase A1 family.PROSITE-ProRule annotation
Keywords - Domaini
SignalFamily and domain databases
CDDi | cd06097, Aspergillopepsin_like, 1 hit |
Gene3Di | 2.40.70.10, 2 hits |
InterProi | View protein in InterPro IPR001461, Aspartic_peptidase_A1 IPR001969, Aspartic_peptidase_AS IPR034163, Aspergillopepsin-like_cat_dom IPR033121, PEPTIDASE_A1 IPR021109, Peptidase_aspartic_dom_sf |
PANTHERi | PTHR47966, PTHR47966, 1 hit |
Pfami | View protein in Pfam PF00026, Asp, 1 hit |
PRINTSi | PR00792, PEPSIN |
SUPFAMi | SSF50630, SSF50630, 1 hit |
PROSITEi | View protein in PROSITE PS00141, ASP_PROTEASE, 2 hits PS51767, PEPTIDASE_A1, 1 hit |
i Sequence
Sequence statusi: Complete.
: The displayed sequence is further processed into a mature form. Sequence processingi
Q12567-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MVVFSKTAAL VLGLSTAVSA APAPTRKGFT INQIARPANK TRTVNLPGLY
60 70 80 90 100
ARSLAKFGGT VPQSVKEAAS KGSAVTTPQN NDEEYLTPVT VGKSTLHLDF
110 120 130 140 150
DTGSADLWVF SDELPSSEQT GHDLYTPSSS ATKLSGYSWD ISYGDGSSAS
160 170 180 190 200
GDVYRDTVTV GGVTTNKQAV EAASKISSEF VQDTANDGLL GLAFSSINTV
210 220 230 240 250
QPKAQTTFFD TVKSQLDSPL FAVQLKHDAP GVYDFGYIDD SKYTGSITYT
260 270 280 290 300
DADSSQGYWG FSTDGYSIGD GSSSSSGFSA IADTGTTLIL LDDEIVSAYY
310 320 330 340 350
EQVSGAQESY EAGGYVFSCS TDLPDFTVVI GDYKAVVPGK YINYAPVSTG
360 370 380 390
SSTCYGGIQS NSGLGLSILG DVFLKSQYVV FNSEGPKLGF AAQA
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | D25318 Genomic DNA Translation: BAA04988.1 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | D25318 Genomic DNA Translation: BAA04988.1 |
3D structure databases
Select the link destinations: PDBei RCSB PDBi PDBji Links Updated | PDB entry | Method | Resolution (Å) | Chain | Positions | PDBsum |
1IBQ | X-ray | 2.14 | A/B | 70-394 | [»] | |
SMRi | Q12567 | |||||
ModBasei | Search... | |||||
PDBe-KBi | Search... |
Protein family/group databases
Allergomei | 8264, Asp sa AP |
MEROPSi | A01.016 |
PTM databases
iPTMneti | Q12567 |
Miscellaneous databases
EvolutionaryTracei | Q12567 |
Family and domain databases
CDDi | cd06097, Aspergillopepsin_like, 1 hit |
Gene3Di | 2.40.70.10, 2 hits |
InterProi | View protein in InterPro IPR001461, Aspartic_peptidase_A1 IPR001969, Aspartic_peptidase_AS IPR034163, Aspergillopepsin-like_cat_dom IPR033121, PEPTIDASE_A1 IPR021109, Peptidase_aspartic_dom_sf |
PANTHERi | PTHR47966, PTHR47966, 1 hit |
Pfami | View protein in Pfam PF00026, Asp, 1 hit |
PRINTSi | PR00792, PEPSIN |
SUPFAMi | SSF50630, SSF50630, 1 hit |
PROSITEi | View protein in PROSITE PS00141, ASP_PROTEASE, 2 hits PS51767, PEPTIDASE_A1, 1 hit |
MobiDBi | Search... |
Entry informationi
Entry namei | PEPA_ASPPH | |
Accessioni | Q12567Primary (citable) accession number: Q12567 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | November 1, 1997 |
Last sequence update: | November 1, 1997 | |
Last modified: | June 2, 2021 | |
This is version 102 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Fungal Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
3D-structure, Direct protein sequencingDocuments
- Peptidase families
Classification of peptidase families and list of entries - PDB cross-references
Index of Protein Data Bank (PDB) cross-references - SIMILARITY comments
Index of protein domains and families