ID A0A0D1Y8V2_9EURO Unreviewed; 509 AA.
AC A0A0D1Y8V2;
DT 29-APR-2015, integrated into UniProtKB/TrEMBL.
DT 29-APR-2015, sequence version 1.
DT 24-JAN-2024, entry version 27.
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=PV11_06908 {ECO:0000313|EMBL:KIV79342.1};
OS Exophiala sideris.
OC Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Eurotiomycetes;
OC Chaetothyriomycetidae; Chaetothyriales; Herpotrichiellaceae; Exophiala.
OX NCBI_TaxID=1016849 {ECO:0000313|EMBL:KIV79342.1, ECO:0000313|Proteomes:UP000053599};
RN [1] {ECO:0000313|EMBL:KIV79342.1, ECO:0000313|Proteomes:UP000053599}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CBS 121828 {ECO:0000313|EMBL:KIV79342.1,
RC ECO:0000313|Proteomes:UP000053599};
RG The Broad Institute Genomics Platform;
RA Cuomo C., de Hoog S., Gorbushina A., Stielow B., Teixiera M.,
RA Abouelleil A., Chapman S.B., Priest M., Young S.K., Wortman J., Nusbaum C.,
RA Birren B.;
RT "The Genome Sequence of Exophiala sideris CBS121828.";
RL Submitted (JAN-2015) 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}.
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DR EMBL; KN846953; KIV79342.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A0D1Y8V2; -.
DR STRING; 1016849.A0A0D1Y8V2; -.
DR MEROPS; C01.085; -.
DR HOGENOM; CLU_038600_0_1_1; -.
DR OrthoDB; 45184at2759; -.
DR Proteomes; UP000053599; 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:UP000053599};
KW Thiol protease {ECO:0000256|ARBA:ARBA00022807,
KW ECO:0000256|PIRNR:PIRNR005700}.
FT ACT_SITE 127
FT /evidence="ECO:0000256|PIRSR:PIRSR005700-1"
FT ACT_SITE 430
FT /evidence="ECO:0000256|PIRSR:PIRSR005700-1"
FT ACT_SITE 451
FT /evidence="ECO:0000256|PIRSR:PIRSR005700-1"
SQ SEQUENCE 509 AA; 56754 MW; 9CDB168B786E9829 CRC64;
MGNSQSSSRV NEPAVEEILA RQLANLRTGD TIRQLEVEKE YIHVDAEKGI PHTYSADPTL
SVKAAESWEK ELLADPKNRL ALNALLSNDL RSVITNKVAT LTDTQTFNVK IPLEGSPVTD
QRSSGRCWLF ATTNVLRVAI MKKYNLKEFE LSQSYLFFWD KLEKANWFLE QIIDTVGEDL
DSRIVQELLG APVNDGGQWD MAANLVAKYG LLPQKLYPDS YNAMNSSSMG SILTTKLRED
GLILRQMLNN PSIKKSSLVA AKAKMMQEVH AVLTLMLGPP PKPDEKFTWE YYDANDKYHK
VVKTPLELAS DLSSPSIVRA LNANVSDLFS LVNDPRNKYN QLMTVERLGN VVGGRPVTYV
NVDMTTMKKA AIAMLRAGLP VFFGSDVGKF SNSSSGIMDP ALYDYGLAFN INLGMSKSQR
LKVRESAMTH AMVLTAVQVE DGKSVRWRVM NSWGESAGEK GYFVMTDKWM DEFVYQVVVD
PGFVGKEIKD VLKTEPLVLP LWDPMGALA
//