SELD_METKA
ID SELD_METKA Reviewed; 334 AA.
AC Q8TVM0;
DT 25-MAR-2003, integrated into UniProtKB/Swiss-Prot.
DT 26-FEB-2008, sequence version 3.
DT 03-AUG-2022, entry version 95.
DE RecName: Full=Selenide, water dikinase {ECO:0000255|HAMAP-Rule:MF_00625};
DE EC=2.7.9.3 {ECO:0000255|HAMAP-Rule:MF_00625};
DE AltName: Full=Selenium donor protein {ECO:0000255|HAMAP-Rule:MF_00625};
DE AltName: Full=Selenophosphate synthase {ECO:0000255|HAMAP-Rule:MF_00625};
GN Name=selD {ECO:0000255|HAMAP-Rule:MF_00625}; OrderedLocusNames=MK1369;
OS Methanopyrus kandleri (strain AV19 / DSM 6324 / JCM 9639 / NBRC 100938).
OC Archaea; Euryarchaeota; Methanopyri; Methanopyrales; Methanopyraceae;
OC Methanopyrus.
OX NCBI_TaxID=190192;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=AV19 / DSM 6324 / JCM 9639 / NBRC 100938;
RX PubMed=11930014; DOI=10.1073/pnas.032671499;
RA Slesarev A.I., Mezhevaya K.V., Makarova K.S., Polushin N.N.,
RA Shcherbinina O.V., Shakhova V.V., Belova G.I., Aravind L., Natale D.A.,
RA Rogozin I.B., Tatusov R.L., Wolf Y.I., Stetter K.O., Malykh A.G.,
RA Koonin E.V., Kozyavkin S.A.;
RT "The complete genome of hyperthermophile Methanopyrus kandleri AV19 and
RT monophyly of archaeal methanogens.";
RL Proc. Natl. Acad. Sci. U.S.A. 99:4644-4649(2002).
CC -!- FUNCTION: Synthesizes selenophosphate from selenide and ATP.
CC {ECO:0000255|HAMAP-Rule:MF_00625}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP + H2O + hydrogenselenide = AMP + 2 H(+) + phosphate +
CC selenophosphate; Xref=Rhea:RHEA:18737, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:16144, ChEBI:CHEBI:29317,
CC ChEBI:CHEBI:30616, ChEBI:CHEBI:43474, ChEBI:CHEBI:456215; EC=2.7.9.3;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00625};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00625};
CC Note=Binds 1 Mg(2+) ion per monomer. {ECO:0000255|HAMAP-Rule:MF_00625};
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00625}.
CC -!- SIMILARITY: Belongs to the selenophosphate synthase 1 family. Class I
CC subfamily. {ECO:0000255|HAMAP-Rule:MF_00625}.
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DR EMBL; AE009439; AAM02582.1; -; Genomic_DNA.
DR STRING; 190192.MK1369; -.
DR KEGG; mka:MK1369; -.
DR PATRIC; fig|190192.8.peg.1522; -.
DR HOGENOM; CLU_032859_1_0_2; -.
DR OMA; DNEPKYG; -.
DR Proteomes; UP000001826; Chromosome.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0004756; F:selenide, water dikinase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0016310; P:phosphorylation; IEA:UniProtKB-KW.
DR GO; GO:0016260; P:selenocysteine biosynthetic process; IEA:InterPro.
DR CDD; cd02195; SelD; 1.
DR Gene3D; 3.30.1330.10; -; 1.
DR Gene3D; 3.90.650.10; -; 1.
DR HAMAP; MF_00625; SelD; 1.
DR InterPro; IPR010918; PurM-like_C_dom.
DR InterPro; IPR036676; PurM-like_C_sf.
DR InterPro; IPR016188; PurM-like_N.
DR InterPro; IPR036921; PurM-like_N_sf.
DR InterPro; IPR023061; SelD_I.
DR InterPro; IPR004536; SPS/SelD.
DR PANTHER; PTHR10256; PTHR10256; 1.
DR Pfam; PF00586; AIRS; 1.
DR Pfam; PF02769; AIRS_C; 1.
DR PIRSF; PIRSF036407; Selenphspht_syn; 1.
DR SUPFAM; SSF55326; SSF55326; 1.
DR SUPFAM; SSF56042; SSF56042; 1.
DR TIGRFAMs; TIGR00476; selD; 1.
PE 3: Inferred from homology;
KW ATP-binding; Kinase; Magnesium; Metal-binding; Nucleotide-binding;
KW Reference proteome; Selenium; Selenocysteine; Transferase.
FT CHAIN 1..334
FT /note="Selenide, water dikinase"
FT /id="PRO_0000127646"
FT ACT_SITE 16
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00625"
FT BINDING 19
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /ligand_note="ligand shared between dimeric partners"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00625"
FT BINDING 45..47
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /ligand_note="ligand shared between dimeric partners"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00625"
FT BINDING 48
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00625"
FT BINDING 64
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /ligand_note="ligand shared between dimeric partners"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00625"
FT BINDING 87
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /ligand_note="ligand shared between dimeric partners"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00625"
FT BINDING 87
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00625"
FT BINDING 135..137
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /ligand_note="ligand shared between dimeric partners"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00625"
FT BINDING 231
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00625"
FT SITE 19
FT /note="Important for catalytic activity"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00625"
FT NON_STD 16
FT /note="Selenocysteine"
FT /evidence="ECO:0000255"
SQ SEQUENCE 334 AA; 35918 MW; 1472409D983757D8 CRC64;
MSRKKSLVEM ADLHGUACKL PQGDLEDLLK GVELPEEGGR VEVGVGDDAA VIRVDGGYVI
QSVDFFTPIH PDPYTQGRIA ANNSINDVFA MGATEVLSVL VVSGFPRELP EEDAREMLQG
FADQCREVDA LIVGGHTIMN PWPILGGCVT GFAERYVTVG GAEPGDVLYL TKPLGTQPAM
AALRLPEDVR KQFLTDSELE EAVDLAVEVM TEPLKDAAEA ALEVGVHAMT DVTGFGLKGH
AGEMAEASGV RVVIERLPVI PGTTELSRAL GYGLERGESA ETAGGLLVAV PEEHAEDLED
AFERRDVWYR RIGRVEEGSG VEVRGDVEEV EDYP
