ID B7C952_9FIRM Unreviewed; 329 AA.
AC B7C952;
DT 10-FEB-2009, integrated into UniProtKB/TrEMBL.
DT 10-FEB-2009, sequence version 1.
DT 27-MAR-2024, entry version 52.
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 ECO:0000313|EMBL:EEC90629.1};
GN ORFNames=EUBIFOR_00709 {ECO:0000313|EMBL:EEC90629.1};
OS Holdemanella biformis DSM 3989.
OC Bacteria; Bacillota; Erysipelotrichia; Erysipelotrichales;
OC Erysipelotrichaceae; Holdemanella.
OX NCBI_TaxID=518637 {ECO:0000313|EMBL:EEC90629.1, ECO:0000313|Proteomes:UP000004315};
RN [1] {ECO:0000313|EMBL:EEC90629.1, ECO:0000313|Proteomes:UP000004315}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 3989 {ECO:0000313|EMBL:EEC90629.1,
RC ECO:0000313|Proteomes:UP000004315};
RA Fulton L., Clifton S., Fulton B., Xu J., Minx P., Pepin K.H., Johnson M.,
RA Bhonagiri V., Nash W.E., Mardis E.R., Wilson R.K.;
RL Submitted (OCT-2008) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:EEC90629.1, ECO:0000313|Proteomes:UP000004315}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 3989 {ECO:0000313|EMBL:EEC90629.1,
RC ECO:0000313|Proteomes:UP000004315};
RA Sudarsanam P., Ley R., Guruge J., Turnbaugh P.J., Mahowald M., Liep D.,
RA Gordon J.;
RT "Draft genome sequence of Eubacterium biforme (DSM 3989).";
RL Submitted (NOV-2008) 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:EEC90629.1}.
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DR EMBL; ABYT01000048; EEC90629.1; -; Genomic_DNA.
DR RefSeq; WP_003864516.1; NZ_DS996841.1.
DR AlphaFoldDB; B7C952; -.
DR STRING; 518637.EUBIFOR_00709; -.
DR eggNOG; COG1518; Bacteria.
DR HOGENOM; CLU_052779_2_1_9; -.
DR OrthoDB; 9803119at2; -.
DR Proteomes; UP000004315; 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 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; IPR019858; CRISPR-assoc_Cas1_HMARI/TNEAP.
DR InterPro; IPR042211; CRISPR-assoc_Cas1_N.
DR NCBIfam; TIGR00287; cas1; 1.
DR PANTHER; PTHR43219; CRISPR-ASSOCIATED ENDONUCLEASE CAS1; 1.
DR PANTHER; PTHR43219:SF1; CRISPR-ASSOCIATED ENDONUCLEASE CAS1 2; 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 155
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01470"
FT BINDING 221
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01470"
FT BINDING 236
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01470"
SQ SEQUENCE 329 AA; 38704 MW; 7D3EA5C938F8B6A5 CRC64;
MKKTIYLYKS GTLKRKDFSL ACVTKDETIP IPIRQVDLII CFSEITLNKR VLELLNAYGI
SIFFFTHNAN YIGQFLPKQH YDGSCLVKQV HAYENEETRL YIAKQMTYAN LHNCLSVLKY
YQKKGRNLTN EINEIEKIID KIKSKESISE LLLLEAMAKQ FYYSGFDEIT RNQDFVFEKR
MVCPPKNAMN AMMSYGYALL YSHYLSVLYR SSLLPSISFI HSMSKSKDSL QYDLADILKP
VLVDRLIFRL IRKNQIRKDM FEYGVDGSCY LNKEGASFFV KEFDKQLNKT IQIHGVDYSY
KRLISKEVHE LSNYIREKST EYNPFLMNW
//
