ID DGKI_HUMAN Reviewed; 1065 AA. AC O75912; A4D1Q9; Q9NZ49; DT 11-JAN-2001, integrated into UniProtKB/Swiss-Prot. DT 01-NOV-1998, sequence version 1. DT 27-MAR-2024, entry version 195. DE RecName: Full=Diacylglycerol kinase iota {ECO:0000303|PubMed:9830018}; DE Short=DAG kinase iota {ECO:0000305|PubMed:9830018}; DE Short=DGK-iota {ECO:0000303|PubMed:9830018}; DE EC=2.7.1.107 {ECO:0000269|PubMed:23949095, ECO:0000269|PubMed:9830018}; GN Name=DGKI {ECO:0000312|HGNC:HGNC:2855}; OS Homo sapiens (Human). OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; OC Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; OC Homo. OX NCBI_TaxID=9606; RN [1] RP NUCLEOTIDE SEQUENCE [MRNA], FUNCTION, CATALYTIC ACTIVITY, PATHWAY, RP SUBCELLULAR LOCATION, AND TISSUE SPECIFICITY. RC TISSUE=Retina; RX PubMed=9830018; DOI=10.1074/jbc.273.49.32746; RA Ding L., Traer E., McIntyre T.M., Zimmerman G.A., Prescott S.M.; RT "The cloning and characterization of a novel human diacylglycerol kinase, RT DGK-iota."; RL J. Biol. Chem. 273:32746-32752(1998). RN [2] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RX PubMed=12690205; DOI=10.1126/science.1083423; RA Scherer S.W., Cheung J., MacDonald J.R., Osborne L.R., Nakabayashi K., RA Herbrick J.-A., Carson A.R., Parker-Katiraee L., Skaug J., Khaja R., RA Zhang J., Hudek A.K., Li M., Haddad M., Duggan G.E., Fernandez B.A., RA Kanematsu E., Gentles S., Christopoulos C.C., Choufani S., Kwasnicka D., RA Zheng X.H., Lai Z., Nusskern D.R., Zhang Q., Gu Z., Lu F., Zeesman S., RA Nowaczyk M.J., Teshima I., Chitayat D., Shuman C., Weksberg R., RA Zackai E.H., Grebe T.A., Cox S.R., Kirkpatrick S.J., Rahman N., RA Friedman J.M., Heng H.H.Q., Pelicci P.G., Lo-Coco F., Belloni E., RA Shaffer L.G., Pober B., Morton C.C., Gusella J.F., Bruns G.A.P., Korf B.R., RA Quade B.J., Ligon A.H., Ferguson H., Higgins A.W., Leach N.T., RA Herrick S.R., Lemyre E., Farra C.G., Kim H.-G., Summers A.M., Gripp K.W., RA Roberts W., Szatmari P., Winsor E.J.T., Grzeschik K.-H., Teebi A., RA Minassian B.A., Kere J., Armengol L., Pujana M.A., Estivill X., RA Wilson M.D., Koop B.F., Tosi S., Moore G.E., Boright A.P., Zlotorynski E., RA Kerem B., Kroisel P.M., Petek E., Oscier D.G., Mould S.J., Doehner H., RA Doehner K., Rommens J.M., Vincent J.B., Venter J.C., Li P.W., Mural R.J., RA Adams M.D., Tsui L.-C.; RT "Human chromosome 7: DNA sequence and biology."; RL Science 300:767-772(2003). RN [3] RP NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 135-1065, AND VARIANT PHE-153. RX PubMed=10706894; RA Bowne S.J., Sullivan L.S., Ding L., Traer E., Prescott S.M., Birch D.G., RA Kennan A., Humphries P., Daiger S.P.; RT "Evaluation of human diacylglycerol kinase iota, DGKI, a homolog of RT Drosophila rdgA, in inherited retinopathy mapping to 7q."; RL Mol. Vis. 6:6-9(2000). RN [4] RP TISSUE SPECIFICITY. RX PubMed=15894621; DOI=10.1073/pnas.0500663102; RA Regier D.S., Higbee J., Lund K.M., Sakane F., Prescott S.M., Topham M.K.; RT "Diacylglycerol kinase iota regulates Ras guanyl-releasing protein 3 and RT inhibits Rap1 signaling."; RL Proc. Natl. Acad. Sci. U.S.A. 102:7595-7600(2005). RN [5] RP INTERACTION WITH DLG4. RX PubMed=21119615; DOI=10.1038/emboj.2010.286; RA Yang J., Seo J., Nair R., Han S., Jang S., Kim K., Han K., Paik S.K., RA Choi J., Lee S., Bae Y.C., Topham M.K., Prescott S.M., Rhee J.S., RA Choi S.Y., Kim E.; RT "DGKiota regulates presynaptic release during mGluR-dependent LTD."; RL EMBO J. 30:165-180(2011). RN [6] RP FUNCTION, AND CATALYTIC ACTIVITY. RX PubMed=23949095; DOI=10.1159/000351849; RA Sato M., Liu K., Sasaki S., Kunii N., Sakai H., Mizuno H., Saga H., RA Sakane F.; RT "Evaluations of the selectivities of the diacylglycerol kinase inhibitors RT R59022 and R59949 among diacylglycerol kinase isozymes using a new non- RT radioactive assay method."; RL Pharmacology 92:99-107(2013). CC -!- FUNCTION: Diacylglycerol kinase that converts diacylglycerol/DAG into CC phosphatidic acid/phosphatidate/PA and regulates the respective levels CC of these two bioactive lipids (PubMed:9830018, PubMed:23949095). CC Thereby, acts as a central switch between the signaling pathways CC activated by these second messengers with different cellular targets CC and opposite effects in numerous biological processes (Probable). Has CC probably no preference for any of the diacylglycerols in terms of the CC acyl chain composition, especially for the acyl chain at the sn-2 CC position (PubMed:9830018). By controlling the diacylglycerol/DAG- CC mediated activation of RASGRP3, negatively regulates the Rap1 signaling CC pathway. May play a role in presynaptic diacylglycerol/DAG signaling CC and control neurotransmitter release during metabotropic glutamate CC receptor-dependent long-term depression (By similarity). CC {ECO:0000250|UniProtKB:D3YWQ0, ECO:0000269|PubMed:23949095, CC ECO:0000269|PubMed:9830018, ECO:0000305}. CC -!- CATALYTIC ACTIVITY: CC Reaction=a 1,2-diacyl-sn-glycerol + ATP = a 1,2-diacyl-sn-glycero-3- CC phosphate + ADP + H(+); Xref=Rhea:RHEA:10272, ChEBI:CHEBI:15378, CC ChEBI:CHEBI:17815, ChEBI:CHEBI:30616, ChEBI:CHEBI:58608, CC ChEBI:CHEBI:456216; EC=2.7.1.107; CC Evidence={ECO:0000269|PubMed:23949095, ECO:0000269|PubMed:9830018}; CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:10273; CC Evidence={ECO:0000305|PubMed:9830018}; CC -!- CATALYTIC ACTIVITY: CC Reaction=1,2-di-(9Z-octadecenoyl)-sn-glycerol + ATP = 1,2-di-(9Z- CC octadecenoyl)-sn-glycero-3-phosphate + ADP + H(+); CC Xref=Rhea:RHEA:40327, ChEBI:CHEBI:15378, ChEBI:CHEBI:30616, CC ChEBI:CHEBI:52333, ChEBI:CHEBI:74546, ChEBI:CHEBI:456216; CC Evidence={ECO:0000269|PubMed:23949095, ECO:0000269|PubMed:9830018}; CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:40328; CC Evidence={ECO:0000305|PubMed:9830018}; CC -!- CATALYTIC ACTIVITY: CC Reaction=1-octadecanoyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycerol CC + ATP = 1-octadecanoyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero- CC 3-phosphate + ADP + H(+); Xref=Rhea:RHEA:40323, ChEBI:CHEBI:15378, CC ChEBI:CHEBI:30616, ChEBI:CHEBI:75728, ChEBI:CHEBI:77091, CC ChEBI:CHEBI:456216; Evidence={ECO:0000269|PubMed:9830018}; CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:40324; CC Evidence={ECO:0000305|PubMed:9830018}; CC -!- CATALYTIC ACTIVITY: CC Reaction=1-octadecanoyl-2-(9Z,12Z)-octadecadienoyl-sn-glycerol + ATP = CC 1-octadecanoyl-2-(9Z,12Z-octadecadienoyl)-sn-glycero-3-phosphate + CC ADP + H(+); Xref=Rhea:RHEA:40339, ChEBI:CHEBI:15378, CC ChEBI:CHEBI:30616, ChEBI:CHEBI:77097, ChEBI:CHEBI:77098, CC ChEBI:CHEBI:456216; Evidence={ECO:0000250|UniProtKB:F1MAB7}; CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:40340; CC Evidence={ECO:0000250|UniProtKB:F1MAB7}; CC -!- PATHWAY: Lipid metabolism; glycerolipid metabolism. CC {ECO:0000269|PubMed:9830018}. CC -!- SUBUNIT: Interacts (via PDZ-binding motif) with DLG4; controls the CC localization of DGKI to the synapse (PubMed:21119615). Interacts (via CC PDZ-binding motif) with DLG1 (By similarity). Interacts (via PDZ- CC binding motif) with DLG2 (By similarity). Interacts (via PDZ-binding CC motif) with DLG3 (By similarity). May interact with RASGRP3; involved CC in the regulation of RASGRP3 activity (By similarity). CC {ECO:0000250|UniProtKB:D3YWQ0, ECO:0000250|UniProtKB:F1MAB7, CC ECO:0000269|PubMed:21119615}. CC -!- INTERACTION: CC O75912; P40337-3: VHL; NbExp=3; IntAct=EBI-1765520, EBI-301270; CC -!- SUBCELLULAR LOCATION: Cell projection, axon CC {ECO:0000250|UniProtKB:F1MAB7}. Cell projection, dendrite CC {ECO:0000250|UniProtKB:F1MAB7}. Presynapse CC {ECO:0000250|UniProtKB:F1MAB7}. Postsynapse CC {ECO:0000250|UniProtKB:F1MAB7}. Postsynaptic density CC {ECO:0000250|UniProtKB:F1MAB7}. Synaptic cell membrane CC {ECO:0000250|UniProtKB:F1MAB7}. Cytoplasmic vesicle, secretory vesicle, CC synaptic vesicle membrane {ECO:0000250|UniProtKB:F1MAB7}. Cytoplasm, CC cytosol {ECO:0000269|PubMed:9830018}. Nucleus CC {ECO:0000269|PubMed:9830018}. Note=Excluded from inhibitory synapses CC (By similarity). Localization between cytoplasm and nucleus is CC regulated by protein kinase C (PubMed:9830018). Both in the detergent CC soluble and particulate fractions (By similarity). CC {ECO:0000250|UniProtKB:F1MAB7, ECO:0000269|PubMed:9830018}. CC -!- TISSUE SPECIFICITY: Specifically expressed in brain and retina CC (PubMed:9830018). In brain, highly expressed in hippocampus, caudate CC nucleus, occipital pole, cerebral cortex, and cerebellum CC (PubMed:9830018). Also detected in kidney (PubMed:15894621). CC {ECO:0000269|PubMed:15894621, ECO:0000269|PubMed:9830018}. CC -!- SIMILARITY: Belongs to the eukaryotic diacylglycerol kinase family. CC {ECO:0000305}. 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; AF061936; AAC62010.1; -; mRNA. DR EMBL; CH236950; EAL24051.1; -; Genomic_DNA. DR EMBL; AH009185; AAF43006.1; -; Genomic_DNA. DR CCDS; CCDS5845.1; -. DR RefSeq; NP_001308637.1; NM_001321708.1. DR RefSeq; NP_001308638.1; NM_001321709.1. DR RefSeq; NP_001308639.1; NM_001321710.1. DR RefSeq; NP_004708.1; NM_004717.3. DR AlphaFoldDB; O75912; -. DR SMR; O75912; -. DR BioGRID; 114605; 7. DR IntAct; O75912; 3. DR STRING; 9606.ENSP00000288490; -. DR DrugBank; DB14001; alpha-Tocopherol succinate. DR SwissLipids; SLP:000000925; -. DR iPTMnet; O75912; -. DR PhosphoSitePlus; O75912; -. DR BioMuta; DGKI; -. DR jPOST; O75912; -. DR MassIVE; O75912; -. DR MaxQB; O75912; -. DR PaxDb; 9606-ENSP00000288490; -. DR PeptideAtlas; O75912; -. DR ProteomicsDB; 50265; -. DR Antibodypedia; 32299; 219 antibodies from 29 providers. DR DNASU; 9162; -. DR Ensembl; ENST00000288490.9; ENSP00000288490.4; ENSG00000157680.17. DR GeneID; 9162; -. DR KEGG; hsa:9162; -. DR UCSC; uc003vtt.4; human. DR AGR; HGNC:2855; -. DR CTD; 9162; -. DR DisGeNET; 9162; -. DR GeneCards; DGKI; -. DR HGNC; HGNC:2855; DGKI. DR HPA; ENSG00000157680; Tissue enhanced (choroid plexus, retina, thyroid gland). DR MIM; 604072; gene. DR neXtProt; NX_O75912; -. DR OpenTargets; ENSG00000157680; -. DR PharmGKB; PA27316; -. DR VEuPathDB; HostDB:ENSG00000157680; -. DR eggNOG; KOG0782; Eukaryota. DR GeneTree; ENSGT00940000158094; -. DR InParanoid; O75912; -. DR OrthoDB; 4642163at2759; -. DR PhylomeDB; O75912; -. DR TreeFam; TF312817; -. DR BRENDA; 2.7.1.107; 2681. DR PathwayCommons; O75912; -. DR Reactome; R-HSA-114508; Effects of PIP2 hydrolysis. DR SignaLink; O75912; -. DR UniPathway; UPA00230; -. DR BioGRID-ORCS; 9162; 20 hits in 1160 CRISPR screens. DR ChiTaRS; DGKI; human. DR GenomeRNAi; 9162; -. DR Pharos; O75912; Tbio. DR PRO; PR:O75912; -. DR Proteomes; UP000005640; Chromosome 7. DR RNAct; O75912; Protein. DR Bgee; ENSG00000157680; Expressed in cortical plate and 128 other cell types or tissues. DR ExpressionAtlas; O75912; baseline and differential. DR GO; GO:0030424; C:axon; IEA:UniProtKB-SubCell. DR GO; GO:0005737; C:cytoplasm; IDA:BHF-UCL. DR GO; GO:0005829; C:cytosol; IEA:UniProtKB-SubCell. DR GO; GO:0043197; C:dendritic spine; IDA:MGI. DR GO; GO:0005634; C:nucleus; IDA:BHF-UCL. DR GO; GO:0005886; C:plasma membrane; TAS:Reactome. DR GO; GO:0014069; C:postsynaptic density; IEA:UniProtKB-SubCell. DR GO; GO:0032991; C:protein-containing complex; IDA:MGI. DR GO; GO:0045202; C:synapse; IDA:MGI. DR GO; GO:0097060; C:synaptic membrane; IEA:UniProtKB-SubCell. DR GO; GO:0030672; C:synaptic vesicle membrane; IEA:UniProtKB-SubCell. DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW. DR GO; GO:0004143; F:ATP-dependent diacylglycerol kinase activity; IDA:BHF-UCL. DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW. DR GO; GO:0046339; P:diacylglycerol metabolic process; IBA:GO_Central. DR GO; GO:0035556; P:intracellular signal transduction; IBA:GO_Central. DR GO; GO:0046834; P:lipid phosphorylation; IDA:BHF-UCL. DR GO; GO:0030168; P:platelet activation; TAS:Reactome. DR GO; GO:0007205; P:protein kinase C-activating G protein-coupled receptor signaling pathway; IEA:InterPro. DR GO; GO:0051966; P:regulation of synaptic transmission, glutamatergic; IBA:GO_Central. DR CDD; cd20850; C1_DGKiota_rpt1; 1. DR CDD; cd20896; C1_DGKiota_rpt2; 1. DR Gene3D; 2.60.200.40; -; 1. DR Gene3D; 3.30.60.20; -; 1. DR Gene3D; 1.25.40.20; Ankyrin repeat-containing domain; 1. DR InterPro; IPR002110; Ankyrin_rpt. DR InterPro; IPR036770; Ankyrin_rpt-contain_sf. DR InterPro; IPR017438; ATP-NAD_kinase_N. DR InterPro; IPR047486; C1_DGKiota_rpt1. DR InterPro; IPR047487; C1_DGKiota_rpt2. DR InterPro; IPR037607; DGK. DR InterPro; IPR000756; Diacylglycerol_kin_accessory. DR InterPro; IPR001206; Diacylglycerol_kinase_cat_dom. DR InterPro; IPR016064; NAD/diacylglycerol_kinase_sf. DR InterPro; IPR002219; PE/DAG-bd. DR PANTHER; PTHR11255; DIACYLGLYCEROL KINASE; 1. DR PANTHER; PTHR11255:SF92; DIACYLGLYCEROL KINASE IOTA; 1. DR Pfam; PF12796; Ank_2; 1. DR Pfam; PF00130; C1_1; 1. DR Pfam; PF00609; DAGK_acc; 1. DR Pfam; PF00781; DAGK_cat; 1. DR SMART; SM00248; ANK; 2. DR SMART; SM00109; C1; 2. DR SMART; SM00045; DAGKa; 1. DR SMART; SM00046; DAGKc; 1. DR SUPFAM; SSF48403; Ankyrin repeat; 1. DR SUPFAM; SSF111331; NAD kinase/diacylglycerol kinase-like; 1. DR PROSITE; PS50297; ANK_REP_REGION; 1. DR PROSITE; PS50088; ANK_REPEAT; 2. DR PROSITE; PS50146; DAGK; 1. PE 1: Evidence at protein level; KW ANK repeat; ATP-binding; Cell membrane; Cell projection; Cytoplasm; KW Cytoplasmic vesicle; Kinase; Lipid metabolism; Membrane; Metal-binding; KW Nucleotide-binding; Nucleus; Reference proteome; Repeat; Synapse; KW Transferase; Zinc; Zinc-finger. FT CHAIN 1..1065 FT /note="Diacylglycerol kinase iota" FT /id="PRO_0000218466" FT DOMAIN 372..507 FT /note="DAGKc" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00783" FT REPEAT 958..987 FT /note="ANK 1" FT /evidence="ECO:0000255" FT REPEAT 994..1023 FT /note="ANK 2" FT /evidence="ECO:0000255" FT ZN_FING 177..232 FT /note="Phorbol-ester/DAG-type 1" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00226" FT ZN_FING 250..309 FT /note="Phorbol-ester/DAG-type 2" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00226" FT REGION 15..74 FT /note="Disordered" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT REGION 334..358 FT /note="Disordered" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT REGION 1022..1041 FT /note="Disordered" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT MOTIF 1063..1065 FT /note="PDZ-binding" FT /evidence="ECO:0000250|UniProtKB:F1MAB7" FT COMPBIAS 59..74 FT /note="Polar residues" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT COMPBIAS 334..349 FT /note="Basic residues" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT VARIANT 153 FT /note="L -> F (in dbSNP:rs61757580)" FT /evidence="ECO:0000269|PubMed:10706894" FT /id="VAR_010190" FT CONFLICT 160 FT /note="A -> P (in Ref. 3; AAF43006)" FT /evidence="ECO:0000305" SQ SEQUENCE 1065 AA; 116997 MW; B84971AA7630A799 CRC64; MDAAGRGCHL LPLPAARGPA RAPAAAAAAA ASPPGPCSGA ACAPSAAAGA GAMNPSSSAG EEKGATGGSS SSGSGAGSCC LGAEGGADPR GAGSAAAAGA AALDEPAAAG QKEKDEALEE KLRNLTFRKQ VSYRKAISRA GLQHLAPAHP LSLPVANGPA KEPRATLDWS ENAVNGEHLW LETNVSGDLC YLGEENCQVR FAKSALRRKC AVCKIVVHTA CIEQLEKINF RCKPTFREGG SRSPRENFVR HHWVHRRRQE GKCKQCGKGF QQKFSFHSKE IVAISCSWCK QAFHNKVTCF MLHHIEEPCS LGAHAAVIVP PTWIIKVKKP QNSLKASNRK KKRTSFKRKA SKRGMEQENK GRPFVIKPIS SPLMKPLLVF VNPKSGGNQG TKVLQMFMWY LNPRQVFDLS QEGPKDALEL YRKVPNLRIL ACGGDGTVGW ILSILDELQL SPQPPVGVLP LGTGNDLART LNWGGGYTDE PVSKILCQVE DGTVVQLDRW NLHVERNPDL PPEELEDGVC KLPLNVFNNY FSLGFDAHVT LEFHESREAN PEKFNSRFRN KMFYAGAAFS DFLQRSSRDL SKHVKVVCDG TDLTPKIQEL KFQCIVFLNI PRYCAGTMPW GNPGDHHDFE PQRHDDGYIE VIGFTMASLA ALQVGGHGER LHQCREVMLL TYKSIPMQVD GEPCRLAPAM IRISLRNQAN MVQKSKRRTS MPLLNDPQSV PDRLRIRVNK ISLQDYEGFH YDKEKLREAS ISDWLRTIAG ELVQSFGAIP LGILVVRGDC DLETCRMYID RLQEDLQSVS SGSQRVHYQD HETSFPRALS AQRLSPRWCF LDDRSQEHLH FVMEISQDEI FILDPDMVVS QPAGTPPGMP DLVVEQASGI SDWWNPALRK RMLSDSGLGM IAPYYEDSDL KDLSHSRVLQ SPVSSEDHAI LQAVIAGDLM KLIESYKNGG SLLIQGPDHC SLLHYAAKTG NGEIVKYILD HGPSELLDMA DSETGETALH KAACQRNRAV CQLLVDAGAS LRKTDSKGKT PQERAQQAGD PDLAAYLESR QNYKVIGHED LETAV //