ID A0A2B7YQX1_9EURO Unreviewed; 507 AA.
AC A0A2B7YQX1;
DT 20-DEC-2017, integrated into UniProtKB/TrEMBL.
DT 20-DEC-2017, sequence version 1.
DT 24-JAN-2024, entry version 24.
DE RecName: Full=Cysteine proteinase 1, mitochondrial {ECO:0000256|ARBA:ARBA00016900, ECO:0000256|PIRNR:PIRNR005700};
DE EC=3.4.22.40 {ECO:0000256|ARBA:ARBA00012465, ECO:0000256|PIRNR:PIRNR005700};
GN ORFNames=AJ80_02350 {ECO:0000313|EMBL:PGH23570.1};
OS Polytolypa hystricis UAMH7299.
OC Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Eurotiomycetes;
OC Eurotiomycetidae; Onygenales; Onygenales incertae sedis; Polytolypa.
OX NCBI_TaxID=1447883 {ECO:0000313|EMBL:PGH23570.1, ECO:0000313|Proteomes:UP000224634};
RN [1] {ECO:0000313|EMBL:PGH23570.1, ECO:0000313|Proteomes:UP000224634}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=UAMH7299 {ECO:0000313|EMBL:PGH23570.1,
RC ECO:0000313|Proteomes:UP000224634};
RA Munoz J.F., Mcewen J.G., Clay O.K., Cuomo C.A.;
RT "Comparative genomics in systemic dimorphic fungi from Ajellomycetaceae.";
RL Submitted (OCT-2017) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Has aminopeptidase activity, shortening substrate peptides
CC sequentially by 1 amino acid. Has bleomycin hydrolase activity, which
CC can protect the cell from the toxic effects of bleomycin. Has
CC homocysteine-thiolactonase activity, protecting the cell against
CC homocysteine toxicity. {ECO:0000256|PIRNR:PIRNR005700}.
CC -!- FUNCTION: The normal physiological role of the enzyme is unknown, but
CC it is not essential for the viability of yeast cells. Has
CC aminopeptidase activity, shortening substrate peptides sequentially by
CC 1 amino acid. Has bleomycin hydrolase activity, which can protect the
CC cell from the toxic effects of bleomycin. Has homocysteine-
CC thiolactonase activity, protecting the cell against homocysteine
CC toxicity. Acts as a repressor in the GAL4 regulatory system, but this
CC does not require either the peptidase or nucleic acid-binding
CC activities. {ECO:0000256|ARBA:ARBA00025347}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=Inactivates bleomycin B2 (a cytotoxic glycometallopeptide) by
CC hydrolysis of a carboxyamide bond of beta-aminoalanine, but also
CC shows general aminopeptidase activity. The specificity varies
CC somewhat with source, but amino acid arylamides of Met, Leu and Ala
CC are preferred.; EC=3.4.22.40;
CC Evidence={ECO:0000256|ARBA:ARBA00000423,
CC ECO:0000256|PIRNR:PIRNR005700};
CC -!- SUBUNIT: Homohexamer. Binds to nucleic acids. Binds single-stranded DNA
CC and RNA with higher affinity than double-stranded DNA.
CC {ECO:0000256|ARBA:ARBA00026080}.
CC -!- SUBCELLULAR LOCATION: Mitochondrion {ECO:0000256|PIRNR:PIRNR005700}.
CC Cytoplasm {ECO:0000256|PIRNR:PIRNR005700}.
CC -!- SIMILARITY: Belongs to the peptidase C1 family.
CC {ECO:0000256|PIRNR:PIRNR005700}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:PGH23570.1}.
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DR EMBL; PDNA01000022; PGH23570.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A2B7YQX1; -.
DR STRING; 1447883.A0A2B7YQX1; -.
DR OrthoDB; 45184at2759; -.
DR Proteomes; UP000224634; Unassembled WGS sequence.
DR GO; GO:0005739; C:mitochondrion; IEA:UniProtKB-SubCell.
DR GO; GO:0070005; F:cysteine-type aminopeptidase activity; IEA:InterPro.
DR GO; GO:0004197; F:cysteine-type endopeptidase activity; IEA:UniProtKB-EC.
DR GO; GO:0003677; F:DNA binding; IEA:UniProtKB-KW.
DR GO; GO:0006508; P:proteolysis; IEA:UniProtKB-KW.
DR CDD; cd00585; Peptidase_C1B; 1.
DR Gene3D; 3.90.70.10; Cysteine proteinases; 1.
DR InterPro; IPR038765; Papain-like_cys_pep_sf.
DR InterPro; IPR000169; Pept_cys_AS.
DR InterPro; IPR004134; Peptidase_C1B.
DR PANTHER; PTHR10363; BLEOMYCIN HYDROLASE; 1.
DR PANTHER; PTHR10363:SF2; BLEOMYCIN HYDROLASE; 1.
DR Pfam; PF03051; Peptidase_C1_2; 1.
DR PIRSF; PIRSF005700; PepC; 1.
DR SUPFAM; SSF54001; Cysteine proteinases; 1.
DR PROSITE; PS00139; THIOL_PROTEASE_CYS; 1.
PE 3: Inferred from homology;
KW Cytoplasm {ECO:0000256|PIRNR:PIRNR005700};
KW DNA-binding {ECO:0000256|ARBA:ARBA00023125};
KW Hydrolase {ECO:0000256|ARBA:ARBA00022801, ECO:0000256|PIRNR:PIRNR005700};
KW Mitochondrion {ECO:0000256|PIRNR:PIRNR005700};
KW Protease {ECO:0000256|ARBA:ARBA00022670, ECO:0000256|PIRNR:PIRNR005700};
KW Reference proteome {ECO:0000313|Proteomes:UP000224634};
KW Thiol protease {ECO:0000256|ARBA:ARBA00022807,
KW ECO:0000256|PIRNR:PIRNR005700}.
FT REGION 1..23
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 123
FT /evidence="ECO:0000256|PIRSR:PIRSR005700-1"
FT ACT_SITE 428
FT /evidence="ECO:0000256|PIRSR:PIRSR005700-1"
FT ACT_SITE 449
FT /evidence="ECO:0000256|PIRSR:PIRSR005700-1"
SQ SEQUENCE 507 AA; 56630 MW; 5E5C78D98800EA14 CRC64;
MGAGQSKELA GPASREKQAV TESLSKLELK DDFALVDDDD HEMPPAYSSA SRTTTISISQ
AQKWEKKLLQ DPKNRLALSA LSVNPASAIL TNPAATVGDI HTFNIKIPFE GAPITNQRQS
GRCWLFASTN VFRVAMMKTY NLKEFELSQS YLFYWDKIEK ANWFLENMID TAGEELDGRL
VQSLFDSPVG DGGQWDMAAN LVRKYGLIPQ QLYPDAYHAK NSSVMDSLIT TKLREQALAL
RDMTKSKDTA VRASIGDAKD KFLQEIHSIL TIMLGPPPFP TEKFTWQYYD TDGKYHELSM
TPTEFSASLS SRQGLRACAG TDVHELFSLV NDPRNSYTRL LTVDRLGNVV RGQPVTYVNV
DMETMKNSAI SMLNVGIPVF FGCDVGKHSN PSLGIMDTAL YDYTLGFNVK FGMTKAQRLR
TGESAMTHAM VLTGVQVENG KPVRWRVENS WGKERGDQGY FVMTDKWMDE FVYQVVVDPR
FVSTAVRGVL KQTPLTLPLW DPMGALA
//
