ID S2JWH2_MUCC1 Unreviewed; 495 AA.
AC S2JWH2;
DT 18-SEP-2013, integrated into UniProtKB/TrEMBL.
DT 18-SEP-2013, sequence version 1.
DT 27-MAR-2024, entry version 44.
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=HMPREF1544_09048 {ECO:0000313|EMBL:EPB84185.1};
OS Mucor circinelloides f. circinelloides (strain 1006PhL) (Mucormycosis
OS agent) (Calyptromyces circinelloides).
OC Eukaryota; Fungi; Fungi incertae sedis; Mucoromycota; Mucoromycotina;
OC Mucoromycetes; Mucorales; Mucorineae; Mucoraceae; Mucor.
OX NCBI_TaxID=1220926 {ECO:0000313|EMBL:EPB84185.1, ECO:0000313|Proteomes:UP000014254};
RN [1] {ECO:0000313|Proteomes:UP000014254}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=1006PhL {ECO:0000313|Proteomes:UP000014254};
RG The Broad Institute Genomics Platform;
RA Cuomo C., Earl A., Findley K., Lee S.C., Walker B., Young S., Zeng Q.,
RA Gargeya S., Fitzgerald M., Haas B., Abouelleil A., Allen A.W., Alvarado L.,
RA Arachchi H.M., Berlin A.M., Chapman S.B., Gainer-Dewar J., Goldberg J.,
RA Griggs A., Gujja S., Hansen M., Howarth C., Imamovic A., Ireland A.,
RA Larimer J., McCowan C., Murphy C., Pearson M., Poon T.W., Priest M.,
RA Roberts A., Saif S., Shea T., Sisk P., Sykes S., Wortman J., Nusbaum C.,
RA Birren B.;
RT "The Genome sequence of Mucor circinelloides f. circinelloides 1006PhL.";
RL Submitted (MAY-2013) 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; KE124046; EPB84185.1; -; Genomic_DNA.
DR AlphaFoldDB; S2JWH2; -.
DR STRING; 1220926.S2JWH2; -.
DR MEROPS; C01.085; -.
DR VEuPathDB; FungiDB:HMPREF1544_09048; -.
DR eggNOG; KOG4128; Eukaryota.
DR InParanoid; S2JWH2; -.
DR OMA; QSYTFFW; -.
DR OrthoDB; 45184at2759; -.
DR Proteomes; UP000014254; 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:UP000014254};
KW Thiol protease {ECO:0000256|ARBA:ARBA00022807,
KW ECO:0000256|PIRNR:PIRNR005700}.
FT ACT_SITE 119
FT /evidence="ECO:0000256|PIRSR:PIRSR005700-1"
FT ACT_SITE 412
FT /evidence="ECO:0000256|PIRSR:PIRSR005700-1"
FT ACT_SITE 434
FT /evidence="ECO:0000256|PIRSR:PIRSR005700-1"
SQ SEQUENCE 495 AA; 56260 MW; 11DEBC5DAC3A6A9E CRC64;
MGAQSSKEQE QQQENFDYEK CAEPSSAVSV LSNQYAHLTL DEADARRYNT ASLSTDTLAK
YSKRFYQDDK NLLARNAIVG TDPTQVMLNP QAALKDKHVF NVKLDLEGSA TNQKSSGRCW
IFAGTNVMRL HVIKKYKLAD DFELSQSYLF FYDKLEKANW FLENMIDLAK EDINDRVVQY
LLTDPVGDGG QFDMLINLVE KYGVVPKSVF PETYASSNSR RLNWLVTVKL REFATQIRKS
VDQGLSVQVI RFLKDKMMED IYRILVISLG EPPSQFDWET TDKAGKYVGV HHLTPKKFFR
EVVGYNIAET LSLINDPRNP TNKLYTVDRL GNIVGGKPIR YVNTTSATQK QLAVDVLKSG
RPVWFGCDVG QFSSNQIGAM DTKIFDYSLA YNVEFGLTKE ERLLYKESAM THAMVFTGVH
LDKDGKPVRW RVENSWSDTS GDKGFWVMSD DWFSSFVYQL VLEKSDVPRK LVDLLDTEPI
VLPAYDPMGA LASPQ
//
