ID A0A2U3WDA3_ODORO Unreviewed; 233 AA.
AC A0A2U3WDA3;
DT 18-JUL-2018, integrated into UniProtKB/TrEMBL.
DT 18-JUL-2018, sequence version 1.
DT 27-MAR-2024, entry version 23.
DE RecName: Full=Adenylate kinase 2, mitochondrial {ECO:0000256|HAMAP-Rule:MF_03168};
DE Short=AK 2 {ECO:0000256|HAMAP-Rule:MF_03168};
DE EC=2.7.4.3 {ECO:0000256|HAMAP-Rule:MF_03168};
DE AltName: Full=ATP-AMP transphosphorylase 2 {ECO:0000256|HAMAP-Rule:MF_03168};
DE AltName: Full=ATP:AMP phosphotransferase {ECO:0000256|HAMAP-Rule:MF_03168};
DE AltName: Full=Adenylate monophosphate kinase {ECO:0000256|HAMAP-Rule:MF_03168};
GN Name=AK2 {ECO:0000256|HAMAP-Rule:MF_03168,
GN ECO:0000313|RefSeq:XP_004406497.1};
OS Odobenus rosmarus divergens (Pacific walrus).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Laurasiatheria; Carnivora; Caniformia; Pinnipedia; Odobenidae;
OC Odobenus.
OX NCBI_TaxID=9708 {ECO:0000313|Proteomes:UP000245340, ECO:0000313|RefSeq:XP_004406497.1};
RN [1] {ECO:0000313|RefSeq:XP_004406497.1}
RP IDENTIFICATION.
RG RefSeq;
RL Submitted (NOV-2023) to UniProtKB.
CC -!- FUNCTION: Catalyzes the reversible transfer of the terminal phosphate
CC group between ATP and AMP. Plays an important role in cellular energy
CC homeostasis and in adenine nucleotide metabolism. Adenylate kinase
CC activity is critical for regulation of the phosphate utilization and
CC the AMP de novo biosynthesis pathways. Plays a key role in
CC hematopoiesis. {ECO:0000256|HAMAP-Rule:MF_03168}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=AMP + ATP = 2 ADP; Xref=Rhea:RHEA:12973, ChEBI:CHEBI:30616,
CC ChEBI:CHEBI:456215, ChEBI:CHEBI:456216; EC=2.7.4.3;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_03168};
CC -!- SUBUNIT: Monomer. {ECO:0000256|HAMAP-Rule:MF_03168}.
CC -!- SUBCELLULAR LOCATION: Mitochondrion intermembrane space
CC {ECO:0000256|HAMAP-Rule:MF_03168}.
CC -!- DOMAIN: Consists of three domains, a large central CORE domain and two
CC small peripheral domains, NMPbind and LID, which undergo movements
CC during catalysis. The LID domain closes over the site of phosphoryl
CC transfer upon ATP binding. Assembling and dissambling the active center
CC during each catalytic cycle provides an effective means to prevent ATP
CC hydrolysis. {ECO:0000256|HAMAP-Rule:MF_03168}.
CC -!- SIMILARITY: Belongs to the adenylate kinase family. AK2 subfamily.
CC {ECO:0000256|HAMAP-Rule:MF_03168}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_03168}.
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DR RefSeq; XP_004406497.1; XM_004406440.1.
DR AlphaFoldDB; A0A2U3WDA3; -.
DR GeneID; 101364318; -.
DR CTD; 204; -.
DR OrthoDB; 167111at2759; -.
DR Proteomes; UP000245340; Unplaced.
DR GO; GO:0005758; C:mitochondrial intermembrane space; IEA:UniProtKB-SubCell.
DR GO; GO:0004017; F:adenylate kinase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR GO; GO:0006172; P:ADP biosynthetic process; IEA:UniProtKB-UniRule.
DR GO; GO:0046033; P:AMP metabolic process; IEA:UniProtKB-UniRule.
DR GO; GO:0046034; P:ATP metabolic process; IEA:UniProtKB-UniRule.
DR GO; GO:0016310; P:phosphorylation; IEA:UniProtKB-KW.
DR CDD; cd01428; ADK; 1.
DR Gene3D; 3.40.50.300; P-loop containing nucleotide triphosphate hydrolases; 1.
DR HAMAP; MF_00235; Adenylate_kinase_Adk; 1.
DR HAMAP; MF_03168; Adenylate_kinase_AK2; 1.
DR InterPro; IPR006259; Adenyl_kin_sub.
DR InterPro; IPR000850; Adenylat/UMP-CMP_kin.
DR InterPro; IPR033690; Adenylat_kinase_CS.
DR InterPro; IPR007862; Adenylate_kinase_lid-dom.
DR InterPro; IPR028587; AK2.
DR InterPro; IPR027417; P-loop_NTPase.
DR NCBIfam; TIGR01351; adk; 1.
DR PANTHER; PTHR23359:SF234; ADENYLATE KINASE 2, MITOCHONDRIAL; 1.
DR PANTHER; PTHR23359; NUCLEOTIDE KINASE; 1.
DR Pfam; PF00406; ADK; 1.
DR Pfam; PF05191; ADK_lid; 1.
DR PRINTS; PR00094; ADENYLTKNASE.
DR SUPFAM; SSF52540; P-loop containing nucleoside triphosphate hydrolases; 1.
DR PROSITE; PS00113; ADENYLATE_KINASE; 1.
PE 3: Inferred from homology;
KW ATP-binding {ECO:0000256|HAMAP-Rule:MF_03168};
KW Disulfide bond {ECO:0000256|HAMAP-Rule:MF_03168};
KW Kinase {ECO:0000256|ARBA:ARBA00022777, ECO:0000256|HAMAP-Rule:MF_03168};
KW Mitochondrion {ECO:0000256|ARBA:ARBA00023128, ECO:0000256|HAMAP-
KW Rule:MF_03168};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_03168}; Reference proteome {ECO:0000313|Proteomes:UP000245340};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_03168}.
FT INIT_MET 1
FT /note="Removed"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03168"
FT DOMAIN 138..171
FT /note="Adenylate kinase active site lid"
FT /evidence="ECO:0000259|Pfam:PF05191"
FT REGION 47..76
FT /note="NMPbind"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03168"
FT BINDING 27..32
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03168"
FT BINDING 48
FT /ligand="AMP"
FT /ligand_id="ChEBI:CHEBI:456215"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03168"
FT BINDING 53
FT /ligand="AMP"
FT /ligand_id="ChEBI:CHEBI:456215"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03168"
FT BINDING 74..76
FT /ligand="AMP"
FT /ligand_id="ChEBI:CHEBI:456215"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03168"
FT BINDING 102..105
FT /ligand="AMP"
FT /ligand_id="ChEBI:CHEBI:456215"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03168"
FT BINDING 109
FT /ligand="AMP"
FT /ligand_id="ChEBI:CHEBI:456215"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03168"
FT BINDING 145..146
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03168"
FT BINDING 169
FT /ligand="AMP"
FT /ligand_id="ChEBI:CHEBI:456215"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03168"
FT BINDING 180
FT /ligand="AMP"
FT /ligand_id="ChEBI:CHEBI:456215"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03168"
FT BINDING 208
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03168"
FT DISULFID 44..94
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03168"
SQ SEQUENCE 233 AA; 25708 MW; 4107E139F526D04D CRC64;
MAPNVPASEA APECPKGIRA VLLGPPGAGK GTQAPKLAEN FCVCHLATGD MLRAMVASGS
ELGKKLKATM DAGKLVSDEM VVELIEKNLE TPRCKNGFLL DGFPRTVRQA EMLDDLMEKR
KEKLDSVIEF SIPDSLLIHP LSGRSYHEEF NPPKEHMKDD ITGEPLVRRS DDNEKALKIR
LEAYHTQTTP LVEYYRKRGI HSVIDATQTP DVVYASILAA FSKATCKDLV MFI
//
