ID PURA_PLAKH Reviewed; 437 AA.
AC B3L781;
DT 05-OCT-2010, integrated into UniProtKB/Swiss-Prot.
DT 02-SEP-2008, sequence version 1.
DT 13-SEP-2023, entry version 67.
DE RecName: Full=Adenylosuccinate synthetase {ECO:0000255|HAMAP-Rule:MF_03125};
DE Short=AMPSase {ECO:0000255|HAMAP-Rule:MF_03125};
DE Short=AdSS {ECO:0000255|HAMAP-Rule:MF_03125};
DE EC=6.3.4.4 {ECO:0000255|HAMAP-Rule:MF_03125};
DE AltName: Full=IMP--aspartate ligase {ECO:0000255|HAMAP-Rule:MF_03125};
GN ORFNames=PKH_111670;
OS Plasmodium knowlesi (strain H).
OC Eukaryota; Sar; Alveolata; Apicomplexa; Aconoidasida; Haemosporida;
OC Plasmodiidae; Plasmodium; Plasmodium (Plasmodium).
OX NCBI_TaxID=5851;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=H;
RX PubMed=18843368; DOI=10.1038/nature07306;
RA Pain A., Boehme U., Berry A.E., Mungall K., Finn R.D., Jackson A.P.,
RA Mourier T., Mistry J., Pasini E.M., Aslett M.A., Balasubrammaniam S.,
RA Borgwardt K., Brooks K., Carret C., Carver T.J., Cherevach I.,
RA Chillingworth T., Clark T.G., Galinski M.R., Hall N., Harper D., Harris D.,
RA Hauser H., Ivens A., Janssen C.S., Keane T., Larke N., Lapp S., Marti M.,
RA Moule S., Meyer I.M., Ormond D., Peters N., Sanders M., Sanders S.,
RA Sargeant T.J., Simmonds M., Smith F., Squares R., Thurston S., Tivey A.R.,
RA Walker D., White B., Zuiderwijk E., Churcher C., Quail M.A., Cowman A.F.,
RA Turner C.M.R., Rajandream M.A., Kocken C.H.M., Thomas A.W., Newbold C.I.,
RA Barrell B.G., Berriman M.;
RT "The genome of the simian and human malaria parasite Plasmodium knowlesi.";
RL Nature 455:799-803(2008).
CC -!- FUNCTION: Plays an important role in the salvage pathway for purine
CC nucleotide biosynthesis. Catalyzes the first committed step in the
CC biosynthesis of AMP from IMP (By similarity). {ECO:0000250}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=GTP + IMP + L-aspartate = GDP + 2 H(+) + N(6)-(1,2-
CC dicarboxyethyl)-AMP + phosphate; Xref=Rhea:RHEA:15753,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:29991, ChEBI:CHEBI:37565,
CC ChEBI:CHEBI:43474, ChEBI:CHEBI:57567, ChEBI:CHEBI:58053,
CC ChEBI:CHEBI:58189; EC=6.3.4.4; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_03125};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_03125};
CC Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000255|HAMAP-Rule:MF_03125};
CC -!- PATHWAY: Purine metabolism; AMP biosynthesis via de novo pathway; AMP
CC from IMP: step 1/2. {ECO:0000255|HAMAP-Rule:MF_03125}.
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_03125}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_03125}.
CC -!- MISCELLANEOUS: Parasitic protozoa lack the de novo purine biosynthesis
CC pathway and rely exclusively on the salvage pathway for their purine
CC nucleotide requirements.
CC -!- SIMILARITY: Belongs to the adenylosuccinate synthetase family.
CC {ECO:0000255|HAMAP-Rule:MF_03125}.
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DR EMBL; AM910993; CAQ40754.1; -; Genomic_DNA.
DR RefSeq; XP_002261349.1; XM_002261313.1.
DR AlphaFoldDB; B3L781; -.
DR SMR; B3L781; -.
DR STRING; 5851.B3L781; -.
DR EnsemblProtists; CAQ40754; CAQ40754; PKH_111670.
DR GeneID; 7321848; -.
DR KEGG; pkn:PKNH_1117300; -.
DR VEuPathDB; PlasmoDB:PKNH_1117300; -.
DR HOGENOM; CLU_029848_0_0_1; -.
DR InParanoid; B3L781; -.
DR OMA; FHHAKPI; -.
DR OrthoDB; 122722at2759; -.
DR PhylomeDB; B3L781; -.
DR UniPathway; UPA00075; UER00335.
DR Proteomes; UP000031513; Chromosome 11.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0004019; F:adenylosuccinate synthase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0005525; F:GTP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0044208; P:'de novo' AMP biosynthetic process; IEA:UniProtKB-UniPathway.
DR CDD; cd03108; AdSS; 1.
DR Gene3D; 3.40.440.10; Adenylosuccinate Synthetase, subunit A, domain 1; 1.
DR Gene3D; 1.10.300.10; Adenylosuccinate Synthetase, subunit A, domain 2; 1.
DR Gene3D; 3.90.170.10; Adenylosuccinate Synthetase, subunit A, domain 3; 1.
DR HAMAP; MF_00011; Adenylosucc_synth; 1.
DR InterPro; IPR018220; Adenylosuccin_syn_GTP-bd.
DR InterPro; IPR033128; Adenylosuccin_syn_Lys_AS.
DR InterPro; IPR042109; Adenylosuccinate_synth_dom1.
DR InterPro; IPR042110; Adenylosuccinate_synth_dom2.
DR InterPro; IPR042111; Adenylosuccinate_synth_dom3.
DR InterPro; IPR001114; Adenylosuccinate_synthetase.
DR InterPro; IPR027417; P-loop_NTPase.
DR NCBIfam; TIGR00184; purA; 1.
DR PANTHER; PTHR11846; ADENYLOSUCCINATE SYNTHETASE; 1.
DR PANTHER; PTHR11846:SF0; ADENYLOSUCCINATE SYNTHETASE; 1.
DR Pfam; PF00709; Adenylsucc_synt; 1.
DR SMART; SM00788; Adenylsucc_synt; 1.
DR SUPFAM; SSF52540; P-loop containing nucleoside triphosphate hydrolases; 1.
DR PROSITE; PS01266; ADENYLOSUCCIN_SYN_1; 1.
DR PROSITE; PS00513; ADENYLOSUCCIN_SYN_2; 1.
PE 3: Inferred from homology;
KW Cytoplasm; GTP-binding; Ligase; Magnesium; Metal-binding;
KW Nucleotide-binding; Purine biosynthesis; Reference proteome.
FT CHAIN 1..437
FT /note="Adenylosuccinate synthetase"
FT /id="PRO_0000399295"
FT ACT_SITE 26
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT ACT_SITE 54
FT /note="Proton donor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 25..31
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 26..29
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /ligand_note="ligand shared between dimeric partners"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 26
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 51..54
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /ligand_note="ligand shared between dimeric partners"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 53..55
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 53
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 62
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 141
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /ligand_note="ligand shared between dimeric partners"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 155
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /ligand_note="ligand shared between dimeric partners"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 232
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /ligand_note="ligand shared between dimeric partners"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 247
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /ligand_note="ligand shared between dimeric partners"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 307..313
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 307
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 311
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /ligand_note="ligand shared between dimeric partners"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 313
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 339..341
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 425..427
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
SQ SEQUENCE 437 AA; 49303 MW; 0363D4E6F2F59CF0 CRC64;
MNIFEHDIQN LSQGNVVAIL GSQWGDEGKG KIIDILSKHS DITCRFNGGA NAGHTISVND
KKYALHLLPC GILYENNICV LGNGMVVHLK SLINEINSIG GNIIERLYLS DKSHILFDIH
QTIDSIQENR KLKEGKQIGT TKRGIGPCYS TKVSRVGIRL GSLKNFEHFK NLYLKLIDNL
MELYDIKDYN KEEELESFYK YHLLLKDRII DVISFMNNRL NEKKNILIEG ANAAMLDIDF
GTYPYVTSSC TTVGGIFSGL GINHKKLNLT IGVVKSYLTR VGCGPFMTEL NNEIGAYLRE
KGHEYGTTTK RPRRCGWLDI PMLLYVKCIN SIDIINLTKL DVLSGLKEIL LCVGYRSKGT
GELLQKGCYP VDEDAPENYE PVYEQFQGWE EDISNCQTFE ELPENAQKYV LAIEKYVDSP
IVWIGVGPNR NNTITKK
//
