ID Q6NEQ3_CORDI Unreviewed; 319 AA.
AC Q6NEQ3;
DT 05-JUL-2004, integrated into UniProtKB/TrEMBL.
DT 05-JUL-2004, sequence version 1.
DT 27-MAR-2024, entry version 91.
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 OrderedLocusNames=DIP2214 {ECO:0000313|EMBL:CAE50742.1};
OS Corynebacterium diphtheriae (strain ATCC 700971 / NCTC 13129 / Biotype
OS gravis).
OC Bacteria; Actinomycetota; Actinomycetes; Mycobacteriales;
OC Corynebacteriaceae; Corynebacterium.
OX NCBI_TaxID=257309 {ECO:0000313|EMBL:CAE50742.1, ECO:0000313|Proteomes:UP000002198};
RN [1] {ECO:0000313|EMBL:CAE50742.1, ECO:0000313|Proteomes:UP000002198}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 700971 / NCTC 13129 / Biotype gravis
RC {ECO:0000313|Proteomes:UP000002198};
RX PubMed=14602910; DOI=10.1093/nar/gkg874;
RA Cerdeno-Tarraga A.M., Efstratiou A., Dover L.G., Holden M.T.G., Pallen M.,
RA Bentley S.D., Besra G.S., Churcher C., James K.D., De Zoysa A.,
RA Chillingworth T., Cronin A., Dowd L., Feltwell T., Hamlin N., Holroyd S.,
RA Jagels K., Moule S., Quail M.A., Rabbinowitsch E., Rutherford K.,
RA Thomson N.R., Unwin L., Whitehead S., Barrell B.G.Parkhill.J.;
RT "The complete genome sequence and analysis of Corynebacterium diphtheriae
RT NCTC13129.";
RL Nucleic Acids Res. 31:6516-6523(2003).
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}.
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DR EMBL; BX248360; CAE50742.1; -; Genomic_DNA.
DR RefSeq; WP_010935669.1; NC_002935.2.
DR AlphaFoldDB; Q6NEQ3; -.
DR STRING; 257309.DIP2214; -.
DR KEGG; cdi:DIP2214; -.
DR HOGENOM; CLU_077904_0_0_11; -.
DR Proteomes; UP000002198; Chromosome.
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 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; 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; TIGR00287; cas1; 1.
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};
KW Reference proteome {ECO:0000313|Proteomes:UP000002198}.
FT BINDING 165
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"
FT BINDING 240
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01470"
SQ SEQUENCE 319 AA; 34833 MW; 79A3A47C06D83355 CRC64;
MPYSHDAIAF STIPASHQIR LEDRLSFLYL EYCLIRQDRT GVIAIQNGHN ESSDEEEKLE
PQILRIQLPV ASLAVLCLGP GTSISNAAMT SCTRSGCTVI FTGGGGVNAY SHATPLTSTA
KWAIAQACLV SNTEYQKKAA LAFYKRQFGG NAITGGSISV MRGLEGRIMR NTYRENAKKA
GIRGFKRDTK AADPVNVGLN ISNSILYGAA ATVCTAIGVN PALGIIHRGD TRSLLFDLAD
LYKASIVIPL VFSHAKDEDP VTNIRRHLRR EIHSRKIMAG MLEALMEVLT PYLPNRNDDR
LIGDSDEVKG HIQYGKEIN
//
