PEPA1_RABIT
ID PEPA1_RABIT Reviewed; 387 AA.
AC P28712; Q54A54;
DT 01-DEC-1992, integrated into UniProtKB/Swiss-Prot.
DT 01-DEC-1992, sequence version 1.
DT 03-AUG-2022, entry version 112.
DE RecName: Full=Pepsin II-1;
DE EC=3.4.23.1;
DE AltName: Full=Pepsin A;
DE Flags: Precursor;
OS Oryctolagus cuniculus (Rabbit).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Euarchontoglires; Glires; Lagomorpha; Leporidae; Oryctolagus.
OX NCBI_TaxID=9986;
RN [1]
RP NUCLEOTIDE SEQUENCE [MRNA].
RC STRAIN=Japanese white; TISSUE=Stomach;
RX PubMed=2129536; DOI=10.1016/s0021-9258(17)44864-2;
RA Kageyama T., Tanabe K., Koiwai O.;
RT "Structure and development of rabbit pepsinogens. Stage-specific zymogens,
RT nucleotide sequences of cDNAs, molecular evolution, and gene expression
RT during development.";
RL J. Biol. Chem. 265:17031-17038(1990).
CC -!- FUNCTION: Shows particularly broad specificity; although bonds
CC involving phenylalanine and leucine are preferred, many others are also
CC cleaved to some extent.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=Preferential cleavage: hydrophobic, preferably aromatic,
CC residues in P1 and P1' positions. Cleaves 1-Phe-|-Val-2, 4-Gln-|-His-
CC 5, 13-Glu-|-Ala-14, 14-Ala-|-Leu-15, 15-Leu-|-Tyr-16, 16-Tyr-|-Leu-
CC 17, 23-Gly-|-Phe-24, 24-Phe-|-Phe-25 and 25-Phe-|-Tyr-26 bonds in the
CC B chain of insulin.; EC=3.4.23.1; Evidence={ECO:0000255|PROSITE-
CC ProRule:PRU10094};
CC -!- SUBCELLULAR LOCATION: Secreted.
CC -!- DEVELOPMENTAL STAGE: Pepsinogens in group I, II, and III where the
CC predominant zymogens at late postnatal stage.
CC -!- SIMILARITY: Belongs to the peptidase A1 family. {ECO:0000305}.
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DR EMBL; AB089790; BAC07514.1; -; mRNA.
DR PIR; B38302; B38302.
DR RefSeq; NP_001164549.1; NM_001171078.1.
DR AlphaFoldDB; P28712; -.
DR SMR; P28712; -.
DR STRING; 9986.ENSOCUP00000015402; -.
DR MEROPS; A01.001; -.
DR Ensembl; ENSOCUT00000006740; ENSOCUP00000005828; ENSOCUG00000023022.
DR GeneID; 100328619; -.
DR KEGG; ocu:100328619; -.
DR eggNOG; KOG1339; Eukaryota.
DR GeneTree; ENSGT00940000155036; -.
DR HOGENOM; CLU_013253_3_0_1; -.
DR InParanoid; P28712; -.
DR OrthoDB; 1619495at2759; -.
DR Proteomes; UP000001811; Unplaced.
DR Bgee; ENSOCUG00000023022; Expressed in smooth muscle tissue and 2 other tissues.
DR GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR GO; GO:0004190; F:aspartic-type endopeptidase activity; IEA:UniProtKB-KW.
DR GO; GO:0007586; P:digestion; IEA:UniProtKB-KW.
DR GO; GO:0006508; P:proteolysis; IEA:UniProtKB-KW.
DR CDD; cd05478; pepsin_A; 1.
DR Gene3D; 2.40.70.10; -; 2.
DR InterPro; IPR001461; Aspartic_peptidase_A1.
DR InterPro; IPR001969; Aspartic_peptidase_AS.
DR InterPro; IPR012848; Aspartic_peptidase_N.
DR InterPro; IPR034162; Pepsin_A.
DR InterPro; IPR033121; PEPTIDASE_A1.
DR InterPro; IPR021109; Peptidase_aspartic_dom_sf.
DR PANTHER; PTHR47966; PTHR47966; 1.
DR Pfam; PF07966; A1_Propeptide; 1.
DR Pfam; PF00026; Asp; 1.
DR PRINTS; PR00792; PEPSIN.
DR SUPFAM; SSF50630; SSF50630; 1.
DR PROSITE; PS00141; ASP_PROTEASE; 2.
DR PROSITE; PS51767; PEPTIDASE_A1; 1.
PE 2: Evidence at transcript level;
KW Aspartyl protease; Digestion; Disulfide bond; Hydrolase; Phosphoprotein;
KW Protease; Reference proteome; Secreted; Signal; Zymogen.
FT SIGNAL 1..15
FT PROPEP 16..59
FT /note="Activation peptide"
FT /id="PRO_0000026028"
FT CHAIN 60..387
FT /note="Pepsin II-1"
FT /id="PRO_0000026029"
FT DOMAIN 75..384
FT /note="Peptidase A1"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01103"
FT ACT_SITE 93
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU10094"
FT ACT_SITE 276
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU10094"
FT MOD_RES 129
FT /note="Phosphoserine"
FT /evidence="ECO:0000250|UniProtKB:P03954"
FT DISULFID 106..111
FT /evidence="ECO:0000250"
FT DISULFID 267..271
FT /evidence="ECO:0000250"
FT DISULFID 310..343
FT /evidence="ECO:0000250"
SQ SEQUENCE 387 AA; 42071 MW; A6EC48F715541A48 CRC64;
MKWLLLLGLL ALSECIVHKV PLVRKKSLRK NLIEKGLLQD YLKTHTPNLA TKYFPKETFA
SVSTESLENY LDAEYFGTIS IGTPPQEFTV IFDTGSSNLW VPSTYCSSLA CFLHKRFNPD
DSSTFQATSE TLSITYGTGS MTGILGYDTV KVGNIEDTNQ IFGLSKTEPG ITFLVAPFDG
ILGLAYPSIS ASDATPVFDN MWNEGLVSED LFSVYLSSNG EKGSMVMFGG IDSSYYTGSL
NWVPVSHEGY WQITMDSITI NGETIACADS CQAVVDTGTS LLAGPTSAIS KIQSYIGASK
NLLGENIISC SAIDSLPDIV FTINNVQYPL PASAYILKED DDCLSGFDGM NLDTSYGELW
ILGDVFIRQY FTVFDRANNQ VGLAAAA