SYS_ENCCU
ID SYS_ENCCU Reviewed; 429 AA.
AC Q8SS48;
DT 01-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT 01-JUN-2002, sequence version 1.
DT 03-AUG-2022, entry version 125.
DE RecName: Full=Serine--tRNA ligase;
DE EC=6.1.1.11;
DE AltName: Full=Seryl-tRNA synthetase;
DE Short=SerRS;
DE AltName: Full=Seryl-tRNA(Ser/Sec) synthetase;
GN OrderedLocusNames=ECU04_0750;
OS Encephalitozoon cuniculi (strain GB-M1) (Microsporidian parasite).
OC Eukaryota; Fungi; Fungi incertae sedis; Microsporidia; Unikaryonidae;
OC Encephalitozoon.
OX NCBI_TaxID=284813;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=GB-M1;
RX PubMed=11719806; DOI=10.1038/35106579;
RA Katinka M.D., Duprat S., Cornillot E., Metenier G., Thomarat F.,
RA Prensier G., Barbe V., Peyretaillade E., Brottier P., Wincker P.,
RA Delbac F., El Alaoui H., Peyret P., Saurin W., Gouy M., Weissenbach J.,
RA Vivares C.P.;
RT "Genome sequence and gene compaction of the eukaryote parasite
RT Encephalitozoon cuniculi.";
RL Nature 414:450-453(2001).
RN [2]
RP IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS], AND
RP DEVELOPMENTAL STAGE.
RX PubMed=16691553; DOI=10.1002/pmic.200500796;
RA Brosson D., Kuhn L., Delbac F., Garin J., Vivares C.P., Texier C.;
RT "Proteomic analysis of the eukaryotic parasite Encephalitozoon cuniculi
RT (microsporidia): a reference map for proteins expressed in late sporogonial
RT stages.";
RL Proteomics 6:3625-3635(2006).
CC -!- FUNCTION: Catalyzes the attachment of serine to tRNA(Ser). Is also
CC probably able to aminoacylate tRNA(Sec) with serine, to form the
CC misacylated tRNA L-seryl-tRNA(Sec), which will be further converted
CC into selenocysteinyl-tRNA(Sec) (By similarity). {ECO:0000250}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP + L-serine + tRNA(Ser) = AMP + diphosphate + H(+) + L-
CC seryl-tRNA(Ser); Xref=Rhea:RHEA:12292, Rhea:RHEA-COMP:9669,
CC Rhea:RHEA-COMP:9703, ChEBI:CHEBI:15378, ChEBI:CHEBI:30616,
CC ChEBI:CHEBI:33019, ChEBI:CHEBI:33384, ChEBI:CHEBI:78442,
CC ChEBI:CHEBI:78533, ChEBI:CHEBI:456215; EC=6.1.1.11;
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP + L-serine + tRNA(Sec) = AMP + diphosphate + H(+) + L-
CC seryl-tRNA(Sec); Xref=Rhea:RHEA:42580, Rhea:RHEA-COMP:9742,
CC Rhea:RHEA-COMP:10128, ChEBI:CHEBI:15378, ChEBI:CHEBI:30616,
CC ChEBI:CHEBI:33019, ChEBI:CHEBI:33384, ChEBI:CHEBI:78442,
CC ChEBI:CHEBI:78533, ChEBI:CHEBI:456215; EC=6.1.1.11;
CC -!- PATHWAY: Aminoacyl-tRNA biosynthesis; selenocysteinyl-tRNA(Sec)
CC biosynthesis; L-seryl-tRNA(Sec) from L-serine and tRNA(Sec): step 1/1.
CC -!- SUBUNIT: Homodimer. The tRNA molecule probably binds across the dimer
CC (By similarity). {ECO:0000250}.
CC -!- DEVELOPMENTAL STAGE: Expressed in late sporogonial stages.
CC {ECO:0000269|PubMed:16691553}.
CC -!- DOMAIN: Consists of two distinct domains, a catalytic core and a N-
CC terminal extension that is involved in tRNA binding. {ECO:0000250}.
CC -!- SIMILARITY: Belongs to the class-II aminoacyl-tRNA synthetase family.
CC Type-1 seryl-tRNA synthetase subfamily. {ECO:0000305}.
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DR EMBL; AL590444; CAD25262.1; -; Genomic_DNA.
DR RefSeq; NP_584758.1; NM_001041108.1.
DR AlphaFoldDB; Q8SS48; -.
DR SMR; Q8SS48; -.
DR STRING; 284813.Q8SS48; -.
DR GeneID; 858906; -.
DR KEGG; ecu:ECU04_0750; -.
DR VEuPathDB; MicrosporidiaDB:ECU04_0750; -.
DR HOGENOM; CLU_023797_0_1_1; -.
DR InParanoid; Q8SS48; -.
DR OMA; SPCFRRE; -.
DR OrthoDB; 726296at2759; -.
DR UniPathway; UPA00906; UER00895.
DR Proteomes; UP000000819; Chromosome IV.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR GO; GO:0004828; F:serine-tRNA ligase activity; IEA:UniProtKB-EC.
DR GO; GO:0097056; P:selenocysteinyl-tRNA(Sec) biosynthetic process; IEA:UniProtKB-UniPathway.
DR GO; GO:0006434; P:seryl-tRNA aminoacylation; IEA:InterPro.
DR CDD; cd00770; SerRS_core; 1.
DR Gene3D; 1.10.287.40; -; 1.
DR Gene3D; 3.30.930.10; -; 1.
DR InterPro; IPR002314; aa-tRNA-synt_IIb.
DR InterPro; IPR006195; aa-tRNA-synth_II.
DR InterPro; IPR045864; aa-tRNA-synth_II/BPL/LPL.
DR InterPro; IPR002317; Ser-tRNA-ligase_type_1.
DR InterPro; IPR015866; Ser-tRNA-synth_1_N.
DR InterPro; IPR042103; SerRS_1_N_sf.
DR InterPro; IPR033729; SerRS_core.
DR InterPro; IPR010978; tRNA-bd_arm.
DR PANTHER; PTHR11778; PTHR11778; 1.
DR Pfam; PF02403; Seryl_tRNA_N; 1.
DR Pfam; PF00587; tRNA-synt_2b; 1.
DR PIRSF; PIRSF001529; Ser-tRNA-synth_IIa; 1.
DR PRINTS; PR00981; TRNASYNTHSER.
DR SUPFAM; SSF46589; SSF46589; 1.
DR SUPFAM; SSF55681; SSF55681; 1.
DR TIGRFAMs; TIGR00414; serS; 1.
DR PROSITE; PS50862; AA_TRNA_LIGASE_II; 1.
PE 1: Evidence at protein level;
KW Aminoacyl-tRNA synthetase; ATP-binding; Ligase; Nucleotide-binding;
KW Protein biosynthesis; Reference proteome.
FT CHAIN 1..429
FT /note="Serine--tRNA ligase"
FT /id="PRO_0000383146"
FT BINDING 234..236
FT /ligand="L-serine"
FT /ligand_id="ChEBI:CHEBI:33384"
FT /evidence="ECO:0000250"
FT BINDING 265..267
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000250"
FT BINDING 281
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000250"
FT BINDING 288
FT /ligand="L-serine"
FT /ligand_id="ChEBI:CHEBI:33384"
FT /evidence="ECO:0000250"
FT BINDING 352..355
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000250"
FT BINDING 389
FT /ligand="L-serine"
FT /ligand_id="ChEBI:CHEBI:33384"
FT /evidence="ECO:0000250"
SQ SEQUENCE 429 AA; 48980 MW; 437249A0D0E4572C CRC64;
MIDINLIRDP KTREKVVESE KKRFRDGLAV GKAYELDRKR IEMNFRLDQI NTRINQLNRE
IKSGYRQGKN KEDGDLSEKV AEIKGLSDEA KGLRDDVKAV EDELNKVMKG IGNIISPSVV
VSNDEKDNPI VRSYRSSRNM QKNPRPFCVL MKDFTHSVAG AKVMGHRGYY LSGKMARLAQ
ALTRYAIDFL ENKGYTYIQT PVMLRRDVMR KTSQLSDFDD QLYKVEDDLY LIATSEQSLA
ALYMDERMVP QEVPKKFCGQ SLCFRKEAGA HGKDNAGLFR VHQFEKIEQF VICGPEESQK
YHEEMIKACE EFYQSLDISY NVVGIVSGEL NDAAAIKYDL EAYFPSAEKY RELVSCSNCT
DYQSRELEIR YGVVKENNRK IYVHLLNGTM CAVQRALCCI VENYQTGDGI AIPDVLQGYF
GGDLIELGP
