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Database: UniProt
Entry: A0A022MN41_9ACTN
LinkDB: A0A022MN41_9ACTN
Original site: A0A022MN41_9ACTN 
ID   A0A022MN41_9ACTN        Unreviewed;       321 AA.
AC   A0A022MN41;
DT   11-JUN-2014, integrated into UniProtKB/TrEMBL.
DT   11-JUN-2014, sequence version 1.
DT   24-JAN-2024, entry version 29.
DE   RecName: Full=CRISPR-associated endonuclease Cas1 {ECO:0000256|HAMAP-Rule:MF_01470};
DE            EC=3.1.-.- {ECO:0000256|HAMAP-Rule:MF_01470};
GN   Name=cas1 {ECO:0000256|HAMAP-Rule:MF_01470};
GN   ORFNames=CF54_07810 {ECO:0000313|EMBL:EYT83374.1};
OS   Streptomyces sp. Tu 6176.
OC   Bacteria; Actinomycetota; Actinomycetes; Kitasatosporales;
OC   Streptomycetaceae; Streptomyces.
OX   NCBI_TaxID=1470557 {ECO:0000313|EMBL:EYT83374.1, ECO:0000313|Proteomes:UP000020060};
RN   [1] {ECO:0000313|EMBL:EYT83374.1, ECO:0000313|Proteomes:UP000020060}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Tu 6176 {ECO:0000313|EMBL:EYT83374.1,
RC   ECO:0000313|Proteomes:UP000020060};
RA   Olano C., Cano-Prieto C., Mendez C., Salas J.A.;
RT   "Draft genome sequence of Streptomyces sp. Tu 6176, producer of the
RT   cytotoxic benzoxazol nataxazol.";
RL   Submitted (MAR-2014) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: CRISPR (clustered regularly interspaced short palindromic
CC       repeat), is an adaptive immune system that provides protection against
CC       mobile genetic elements (viruses, transposable elements and conjugative
CC       plasmids). CRISPR clusters contain spacers, sequences complementary to
CC       antecedent mobile elements, and target invading nucleic acids. CRISPR
CC       clusters are transcribed and processed into CRISPR RNA (crRNA). Acts as
CC       a dsDNA endonuclease. Involved in the integration of spacer DNA into
CC       the CRISPR cassette. {ECO:0000256|HAMAP-Rule:MF_01470}.
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000256|HAMAP-Rule:MF_01470};
CC       Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC         Evidence={ECO:0000256|HAMAP-Rule:MF_01470};
CC   -!- SUBUNIT: Homodimer, forms a heterotetramer with a Cas2 homodimer.
CC       {ECO:0000256|HAMAP-Rule:MF_01470}.
CC   -!- SIMILARITY: Belongs to the CRISPR-associated endonuclease Cas1 family.
CC       {ECO:0000256|HAMAP-Rule:MF_01470}.
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:EYT83374.1}.
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DR   EMBL; JFJQ01000233; EYT83374.1; -; Genomic_DNA.
DR   RefSeq; WP_037889141.1; NZ_KK106988.1.
DR   AlphaFoldDB; A0A022MN41; -.
DR   HOGENOM; CLU_077904_0_0_11; -.
DR   OrthoDB; 9777847at2; -.
DR   Proteomes; UP000020060; Unassembled WGS sequence.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0004520; F:DNA endonuclease activity; IEA:InterPro.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0051607; P:defense response to virus; IEA:UniProtKB-UniRule.
DR   GO; GO:0043571; P:maintenance of CRISPR repeat elements; IEA:UniProtKB-UniRule.
DR   CDD; cd09719; Cas1_I-E; 1.
DR   Gene3D; 1.20.120.920; CRISPR-associated endonuclease Cas1, C-terminal domain; 1.
DR   Gene3D; 3.100.10.20; CRISPR-associated endonuclease Cas1, N-terminal domain; 1.
DR   HAMAP; MF_01470; Cas1; 1.
DR   InterPro; IPR033641; Cas1_I-E.
DR   InterPro; IPR002729; CRISPR-assoc_Cas1.
DR   InterPro; IPR042206; CRISPR-assoc_Cas1_C.
DR   InterPro; IPR019851; CRISPR-assoc_Cas1_ECOLI.
DR   InterPro; IPR042211; CRISPR-assoc_Cas1_N.
DR   NCBIfam; TIGR03638; cas1_ECOLI; 1.
DR   PANTHER; PTHR34353:SF3; CRISPR-ASSOCIATED ENDONUCLEASE CAS1; 1.
DR   PANTHER; PTHR34353; CRISPR-ASSOCIATED ENDONUCLEASE CAS1 1; 1.
DR   Pfam; PF01867; Cas_Cas1; 1.
PE   3: Inferred from homology;
KW   Antiviral defense {ECO:0000256|ARBA:ARBA00023118, ECO:0000256|HAMAP-
KW   Rule:MF_01470};
KW   DNA-binding {ECO:0000256|ARBA:ARBA00023125, ECO:0000256|HAMAP-
KW   Rule:MF_01470};
KW   Endonuclease {ECO:0000256|ARBA:ARBA00022759, ECO:0000256|HAMAP-
KW   Rule:MF_01470};
KW   Hydrolase {ECO:0000256|ARBA:ARBA00022801, ECO:0000256|HAMAP-Rule:MF_01470};
KW   Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|HAMAP-Rule:MF_01470};
KW   Manganese {ECO:0000256|HAMAP-Rule:MF_01470};
KW   Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW   Rule:MF_01470};
KW   Nuclease {ECO:0000256|ARBA:ARBA00022722, ECO:0000256|HAMAP-Rule:MF_01470}.
FT   BINDING         147
FT                   /ligand="Mn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29035"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01470"
FT   BINDING         214
FT                   /ligand="Mn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29035"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01470"
FT   BINDING         227
FT                   /ligand="Mn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29035"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01470"
SQ   SEQUENCE   321 AA;  35387 MW;  6CA71E71CB5F0B7E CRC64;
     MSTPSQRPAL TPRQLTRTDE RLSFVYLERC TVHRDANAIT AQDAEGTTHI PSATIGTLLL
     GPGTRVTHQA MSVLGETGAA VCWVGEHGVR YYASGRALSR SSHLMEAQAR QWANPRNRLA
     VAREMYRLRF PDEDPAGLTR NELLGRERRR LKDCYRAQAA RTGVPWRGRR YIPGDFTSGD
     AVNQAITAAA QCMYGIAHAV VTSLGCSPAL GFIHSGHELS FVLDIADLYK TEIGIPLAFD
     VAAQSEEDVG SRTRRALRDR ITETSLLHRC VDDIKRLLLP ETATSSDSGD DRDVVTLQSD
     HNHQVASGVN YDGPDYGDEL W
//
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