ID I6U8P6_ACISI Unreviewed; 505 AA. AC I6U8P6; DT 03-OCT-2012, integrated into UniProtKB/TrEMBL. DT 03-OCT-2012, sequence version 1. DT 29-MAY-2024, entry version 21. DE RecName: Full=V(D)J recombination-activating protein 1 {ECO:0000256|ARBA:ARBA00021277, ECO:0000256|RuleBase:RU366024}; DE EC=2.3.2.27 {ECO:0000256|ARBA:ARBA00012483, ECO:0000256|RuleBase:RU366024}; DE EC=3.1.-.- {ECO:0000256|RuleBase:RU366024}; DE Flags: Fragment; GN Name=RAG-1 {ECO:0000313|EMBL:AFM84470.1}; OS Acipenser sinensis (Chinese sturgeon). OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; OC Actinopterygii; Chondrostei; Acipenseriformes; Acipenseridae; Acipenser. OX NCBI_TaxID=61970 {ECO:0000313|EMBL:AFM84470.1}; RN [1] {ECO:0000313|EMBL:AFM84470.1} RP NUCLEOTIDE SEQUENCE. RX PubMed=22720083; DOI=10.1371/journal.pone.0039256; RA Shen X.X., Liang D., Zhang P.; RT "The development of three long universal nuclear protein-coding locus RT markers and their application to osteichthyan phylogenetics with nested RT PCR."; RL PLoS ONE 7:E39256-E39256(2012). CC -!- FUNCTION: Catalytic component of the RAG complex, a multiprotein CC complex that mediates the DNA cleavage phase during V(D)J CC recombination. V(D)J recombination assembles a diverse repertoire of CC immunoglobulin and T-cell receptor genes in developing B and T- CC lymphocytes through rearrangement of different V (variable), in some CC cases D (diversity), and J (joining) gene segments. In the RAG complex, CC RAG1 mediates the DNA-binding to the conserved recombination signal CC sequences (RSS) and catalyzes the DNA cleavage activities by CC introducing a double-strand break between the RSS and the adjacent CC coding segment. RAG2 is not a catalytic component but is required for CC all known catalytic activities. DNA cleavage occurs in 2 steps: a first CC nick is introduced in the top strand immediately upstream of the CC heptamer, generating a 3'-hydroxyl group that can attack the CC phosphodiester bond on the opposite strand in a direct CC transesterification reaction, thereby creating 4 DNA ends: 2 hairpin CC coding ends and 2 blunt, 5'-phosphorylated ends. CC {ECO:0000256|RuleBase:RU366024}. CC -!- CATALYTIC ACTIVITY: CC Reaction=S-ubiquitinyl-[E2 ubiquitin-conjugating enzyme]-L-cysteine + CC [acceptor protein]-L-lysine = [E2 ubiquitin-conjugating enzyme]-L- CC cysteine + N(6)-ubiquitinyl-[acceptor protein]-L-lysine.; CC EC=2.3.2.27; Evidence={ECO:0000256|ARBA:ARBA00000900, CC ECO:0000256|RuleBase:RU366024}; CC -!- COFACTOR: CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420; CC Evidence={ECO:0000256|ARBA:ARBA00001946, CC ECO:0000256|RuleBase:RU366024}; CC -!- COFACTOR: CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035; CC Evidence={ECO:0000256|RuleBase:RU366024}; CC Note=Binds 1 divalent metal cation per subunit. Mg(2+) or Mn(2+). CC {ECO:0000256|RuleBase:RU366024}; CC -!- SUBUNIT: Homodimer. {ECO:0000256|RuleBase:RU366024}. CC -!- SUBCELLULAR LOCATION: Nucleus {ECO:0000256|RuleBase:RU366024}. CC -!- SIMILARITY: Belongs to the RAG1 family. CC {ECO:0000256|RuleBase:RU366024}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; JQ929572; AFM84470.1; -; Genomic_DNA. DR AlphaFoldDB; I6U8P6; -. DR GO; GO:0097519; C:DNA recombinase complex; IEA:TreeGrafter. DR GO; GO:1905347; C:endodeoxyribonuclease complex; IEA:TreeGrafter. DR GO; GO:0005634; C:nucleus; IEA:UniProtKB-SubCell. DR GO; GO:1990238; F:double-stranded DNA endonuclease activity; IEA:TreeGrafter. DR GO; GO:0042393; F:histone binding; IEA:UniProtKB-UniRule. DR GO; GO:0042803; F:protein homodimerization activity; IEA:UniProtKB-UniRule. DR GO; GO:0043565; F:sequence-specific DNA binding; IEA:UniProtKB-UniRule. DR GO; GO:0061630; F:ubiquitin protein ligase activity; IEA:UniProtKB-UniRule. DR GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule. DR GO; GO:0002250; P:adaptive immune response; IEA:TreeGrafter. DR GO; GO:0006325; P:chromatin organization; IEA:UniProtKB-KW. DR GO; GO:0002331; P:pre-B cell allelic exclusion; IEA:TreeGrafter. DR GO; GO:0033077; P:T cell differentiation in thymus; IEA:UniProtKB-UniRule. DR GO; GO:0033151; P:V(D)J recombination; IEA:UniProtKB-UniRule. DR InterPro; IPR024627; RAG1. DR PANTHER; PTHR11539:SF0; V(D)J RECOMBINATION-ACTIVATING PROTEIN 1; 1. DR PANTHER; PTHR11539; VDJ RECOMBINATION ACTIVATING PROTEIN 1 RAG1; 1. DR Pfam; PF12940; RAG1; 1. PE 3: Inferred from homology; KW Chromatin regulator {ECO:0000256|RuleBase:RU366024}; KW DNA recombination {ECO:0000256|RuleBase:RU366024}; KW DNA-binding {ECO:0000256|ARBA:ARBA00023125, ECO:0000256|RuleBase:RU366024}; KW Endonuclease {ECO:0000256|RuleBase:RU366024}; KW Hydrolase {ECO:0000256|ARBA:ARBA00022801, ECO:0000256|RuleBase:RU366024}; KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, KW ECO:0000256|RuleBase:RU366024}; KW Multifunctional enzyme {ECO:0000256|RuleBase:RU366024}; KW Nuclease {ECO:0000256|RuleBase:RU366024}; KW Nucleus {ECO:0000256|ARBA:ARBA00023242, ECO:0000256|RuleBase:RU366024}; KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|RuleBase:RU366024}; KW Ubl conjugation pathway {ECO:0000256|RuleBase:RU366024}; KW Zinc {ECO:0000256|RuleBase:RU366024}; KW Zinc-finger {ECO:0000256|RuleBase:RU366024}. FT NON_TER 1 FT /evidence="ECO:0000313|EMBL:AFM84470.1" FT NON_TER 505 FT /evidence="ECO:0000313|EMBL:AFM84470.1" SQ SEQUENCE 505 AA; 57644 MW; 34E8691677C7373F CRC64; YRTVKATSGR QIFQPLHALR NAEKVLLPGY HPFEWQPALK NVSSSTEVGI IDGLSGWTVS VEDSQMDTIA RRFRYDAALV SALKDLEEDI LEGINEQGLD DSSTEVFTVV IKESCDGMGD VSEKHGGGPL LPEKAIRFSF TIMSIATKNE DGENINVFQE HKPNSELCCK PLCLMFADES DHETLTAILG PVLAEREAMK ESRLILEIGG LSRSFRFIFR GTGYDEKLVR DVEGLEASGS TYICTLCDAT RGEAAQNMVL HSVTRNHEEN LDRYEIWRSN PYSESVDELR DRVKGVSAKP FMETQPSIDA LHCDIGNATE FYKIFQDEIG EVYQNHNPTH EERKRWQSAL DKQLRKKMNL RPVMRMNGNF ARKLMTKETV EAVCELVPSE ERREALRELV HLYIQMKPVW RANCPAKECP DLPCRYSFNS QRFAELLSTT FKYRYDGKIT NYLHKTLAHV PEIIEREGSI GAWASEGNES GNKLFRRFRK MNARQSKCYE LEDIL //