ID H3NP36_9FIRM Unreviewed; 321 AA.
AC H3NP36;
DT 18-APR-2012, integrated into UniProtKB/TrEMBL.
DT 18-APR-2012, sequence version 1.
DT 24-JAN-2024, entry version 46.
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=HMPREF9709_01097 {ECO:0000313|EMBL:EHR33498.1};
OS Helcococcus kunzii ATCC 51366.
OC Bacteria; Bacillota; Tissierellia; Tissierellales; Peptoniphilaceae;
OC Helcococcus.
OX NCBI_TaxID=883114 {ECO:0000313|EMBL:EHR33498.1, ECO:0000313|Proteomes:UP000004191};
RN [1] {ECO:0000313|EMBL:EHR33498.1, ECO:0000313|Proteomes:UP000004191}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 51366 {ECO:0000313|EMBL:EHR33498.1,
RC ECO:0000313|Proteomes:UP000004191};
RG The Broad Institute Genome Sequencing Platform;
RA Earl A., Ward D., Feldgarden M., Gevers D., Huys G., Young S.K., Zeng Q.,
RA Gargeya S., Fitzgerald M., Haas B., Abouelleil A., Alvarado L.,
RA Arachchi H.M., Berlin A., Chapman S.B., Gearin G., Goldberg J., Griggs A.,
RA Gujja S., Hansen M., Heiman D., Howarth C., Larimer J., Lui A.,
RA MacDonald P.J.P., McCowen C., Montmayeur A., Murphy C., Neiman D.,
RA Pearson M., Priest M., Roberts A., Saif S., Shea T., Sisk P., Stolte C.,
RA Sykes S., Wortman J., Nusbaum C., Birren B.;
RT "The Genome Sequence of Helcococcus kunzii ATCC 51366.";
RL Submitted (JAN-2012) 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|ARBA:ARBA00038592, 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:EHR33498.1}.
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DR EMBL; AGEI01000022; EHR33498.1; -; Genomic_DNA.
DR RefSeq; WP_005398602.1; NZ_JH601088.1.
DR AlphaFoldDB; H3NP36; -.
DR STRING; 883114.HMPREF9709_01097; -.
DR PATRIC; fig|883114.3.peg.1086; -.
DR eggNOG; COG1518; Bacteria.
DR HOGENOM; CLU_857004_0_0_9; -.
DR OrthoDB; 9803119at2; -.
DR Proteomes; UP000004191; 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; cd09634; Cas1_I-II-III; 1.
DR Gene3D; 1.20.120.920; CRISPR-associated endonuclease Cas1, C-terminal domain; 1.
DR HAMAP; MF_01470; Cas1; 1.
DR InterPro; IPR027617; Cas1_PREFRAN.
DR InterPro; IPR002729; CRISPR-assoc_Cas1.
DR InterPro; IPR042206; CRISPR-assoc_Cas1_C.
DR NCBIfam; TIGR00287; cas1; 1.
DR NCBIfam; TIGR04329; cas1_PREFRAN; 1.
DR PANTHER; PTHR34353; CRISPR-ASSOCIATED ENDONUCLEASE CAS1 1; 1.
DR PANTHER; PTHR34353:SF2; 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|ARBA:ARBA00023211, 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:UP000004191}.
FT BINDING 163
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01470"
FT BINDING 224
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01470"
FT BINDING 239
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01470"
SQ SEQUENCE 321 AA; 38225 MW; 45A9481AD088AE83 CRC64;
MLSRNDYMFK KIIIVFTNKG EKFRIQNDNL IVEDNNGEII LQSTGYRIFS LWIVGNYNIT
TPLINRAKKF GYSIFLFSHS FRIIESFCIP LEGNTLLRQR QFYNENNFDI AKHFVKNKIE
NQKYALKKSD LDNLILNNVN LKLDEYYNKI DSIEDDKSLL GIEGAASRLY FSTLFIGKDW
KGRKPRVKHD INNCLMDLGY TLLFTYIEAL LKCFGFDSYI GVYHKIFYKR KSLVCDMIEP
FRPIIDYQIV KMNNLNMIDN NDFTIRNFQV TLNYKDSKKY VGCLMKAILD NREDLFMYVQ
NYYRAFMKNK NIVDFPVYKF R
//
