ID NDUA9_HUMAN Reviewed; 377 AA. AC Q16795; Q14076; Q2NKX0; DT 01-NOV-1997, integrated into UniProtKB/Swiss-Prot. DT 01-NOV-1997, sequence version 2. DT 27-MAR-2024, entry version 200. DE RecName: Full=NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 9, mitochondrial; DE AltName: Full=Complex I-39kD; DE Short=CI-39kD; DE AltName: Full=NADH-ubiquinone oxidoreductase 39 kDa subunit; DE Flags: Precursor; GN Name=NDUFA9; Synonyms=NDUFS2L; 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]. RA Loeffen J.L.C.M., Smeets R.J.P., Triepels R., Ruitenbeek W., RA Smeitink J.A.M., van den Heuvel L.; RT "39 kDa subunit of NADH-ubiquinone oxidoreductase."; RL Submitted (FEB-1998) to the EMBL/GenBank/DDBJ databases. RN [2] RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. RC TISSUE=Colon, Muscle, and Skeletal muscle; RX PubMed=15489334; DOI=10.1101/gr.2596504; RG The MGC Project Team; RT "The status, quality, and expansion of the NIH full-length cDNA project: RT the Mammalian Gene Collection (MGC)."; RL Genome Res. 14:2121-2127(2004). RN [3] RP NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 1-33. RC TISSUE=Blood; RX PubMed=8012384; DOI=10.1038/ng0394-236; RA Cross S.H., Charlton J.A., Nan X., Bird A.P.; RT "Purification of CpG islands using a methylated DNA binding column."; RL Nat. Genet. 6:236-244(1994). RN [4] RP NUCLEOTIDE SEQUENCE [MRNA] OF 3-377. RC TISSUE=Liver; RX PubMed=8486360; DOI=10.1006/geno.1993.1161; RA Baens M., Chaffanet M., Cassiman J.-J., van den Berghe H., Marynen P.; RT "Construction and evaluation of a hncDNA library of human 12p transcribed RT sequences derived from a somatic cell hybrid."; RL Genomics 16:214-218(1993). RN [5] RP IDENTIFICATION IN THE NADH-UBIQUINONE OXIDOREDUCTASE COMPLEX, RP IDENTIFICATION BY MASS SPECTROMETRY, AND SUBCELLULAR LOCATION. RX PubMed=12611891; DOI=10.1074/jbc.c300064200; RA Murray J., Zhang B., Taylor S.W., Oglesbee D., Fahy E., Marusich M.F., RA Ghosh S.S., Capaldi R.A.; RT "The subunit composition of the human NADH dehydrogenase obtained by rapid RT one-step immunopurification."; RL J. Biol. Chem. 278:13619-13622(2003). RN [6] RP IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS]. RX PubMed=21269460; DOI=10.1186/1752-0509-5-17; RA Burkard T.R., Planyavsky M., Kaupe I., Breitwieser F.P., Buerckstuemmer T., RA Bennett K.L., Superti-Furga G., Colinge J.; RT "Initial characterization of the human central proteome."; RL BMC Syst. Biol. 5:17-17(2011). RN [7] RP INTERACTION WITH BLOC1S1, AND ACETYLATION. RX PubMed=22309213; DOI=10.1042/bj20120118; RA Scott I., Webster B.R., Li J.H., Sack M.N.; RT "Identification of a molecular component of the mitochondrial acetyl RT transferase program; a novel role for GCN5L1."; RL Biochem. J. 443:655-661(2012). RN [8] RP IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS]. RC TISSUE=Liver; RX PubMed=24275569; DOI=10.1016/j.jprot.2013.11.014; RA Bian Y., Song C., Cheng K., Dong M., Wang F., Huang J., Sun D., Wang L., RA Ye M., Zou H.; RT "An enzyme assisted RP-RPLC approach for in-depth analysis of human liver RT phosphoproteome."; RL J. Proteomics 96:253-262(2014). RN [9] RP IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS]. RX PubMed=25944712; DOI=10.1002/pmic.201400617; RA Vaca Jacome A.S., Rabilloud T., Schaeffer-Reiss C., Rompais M., Ayoub D., RA Lane L., Bairoch A., Van Dorsselaer A., Carapito C.; RT "N-terminome analysis of the human mitochondrial proteome."; RL Proteomics 15:2519-2524(2015). RN [10] RP FUNCTION, AND IDENTIFICATION IN THE NADH-UBIQUINONE OXIDOREDUCTASE COMPLEX. RX PubMed=27626371; DOI=10.1038/nature19754; RA Stroud D.A., Surgenor E.E., Formosa L.E., Reljic B., Frazier A.E., RA Dibley M.G., Osellame L.D., Stait T., Beilharz T.H., Thorburn D.R., RA Salim A., Ryan M.T.; RT "Accessory subunits are integral for assembly and function of human RT mitochondrial complex I."; RL Nature 538:123-126(2016). RN [11] RP INVOLVEMENT IN MC1DN26, VARIANT MC1DN26 PRO-321, AND FUNCTION. RX PubMed=22114105; DOI=10.1136/jmedgenet-2011-100466; RA van den Bosch B.J., Gerards M., Sluiter W., Stegmann A.P., Jongen E.L., RA Hellebrekers D.M., Oegema R., Lambrichs E.H., Prokisch H., Danhauser K., RA Schoonderwoerd K., de Coo I.F., Smeets H.J.; RT "Defective NDUFA9 as a novel cause of neonatally fatal complex I disease."; RL J. Med. Genet. 49:10-15(2012). RN [12] RP ACETYLATION, AND INTERACTION WITH CLOCK. RX PubMed=28985504; DOI=10.1016/j.molcel.2017.09.008; RA Lin R., Mo Y., Zha H., Qu Z., Xie P., Zhu Z.J., Xu Y., Xiong Y., Guan K.L.; RT "CLOCK acetylates ASS1 to drive circadian rhythm of ureagenesis."; RL Mol. Cell 68:198-209(2017). RN [13] RP FUNCTION, INVOLVEMENT IN MC1DN26, VARIANTS MC1DN26 PRO-321 AND CYS-360, AND RP CHARACTERIZATION OF VARIANTS MC1DN26 PRO-321 AND CYS-360. RX PubMed=28671271; DOI=10.1111/cge.13089; RA Baertling F., Sanchez-Caballero L., van den Brand M.A.M., Fung C.W., RA Chan S.H., Wong V.C., Hellebrekers D.M.E., de Coo I.F.M., Smeitink J.A.M., RA Rodenburg R.J.T., Nijtmans L.G.J.; RT "NDUFA9 point mutations cause a variable mitochondrial complex I assembly RT defect."; RL Clin. Genet. 93:111-118(2018). RN [14] RP IDENTIFICATION BY MASS SPECTROMETRY, AND INTERACTION WITH RAB5IF. RX PubMed=31536960; DOI=10.1016/j.isci.2019.08.057; RA Moutaoufik M.T., Malty R., Amin S., Zhang Q., Phanse S., Gagarinova A., RA Zilocchi M., Hoell L., Minic Z., Gagarinova M., Aoki H., Stockwell J., RA Jessulat M., Goebels F., Broderick K., Scott N.E., Vlasblom J., Musso G., RA Prasad B., Lamantea E., Garavaglia B., Rajput A., Murayama K., Okazaki Y., RA Foster L.J., Bader G.D., Cayabyab F.S., Babu M.; RT "Rewiring of the Human Mitochondrial Interactome during Neuronal RT Reprogramming Reveals Regulators of the Respirasome and Neurogenesis."; RL IScience 19:1114-1132(2019). CC -!- FUNCTION: Accessory subunit of the mitochondrial membrane respiratory CC chain NADH dehydrogenase (Complex I), that is believed not to be CC involved in catalysis. Required for proper complex I assembly CC (PubMed:28671271). Complex I functions in the transfer of electrons CC from NADH to the respiratory chain. The immediate electron acceptor for CC the enzyme is believed to be ubiquinone. {ECO:0000269|PubMed:22114105, CC ECO:0000269|PubMed:27626371, ECO:0000269|PubMed:28671271}. CC -!- COFACTOR: CC Name=FAD; Xref=ChEBI:CHEBI:57692; CC Note=Binds 1 FAD per subunit.; CC -!- SUBUNIT: Complex I is composed of 45 different subunits. This a CC component of the hydrophobic protein fraction (PubMed:12611891, CC PubMed:27626371). Interacts with BLOC1S1 (PubMed:22309213). Interacts CC with SLC2A4 (By similarity). Interacts with CLOCK (PubMed:28985504). CC Interacts with RAB5IF (PubMed:31536960). {ECO:0000250|UniProtKB:Q5BK63, CC ECO:0000269|PubMed:12611891, ECO:0000269|PubMed:22309213, CC ECO:0000269|PubMed:27626371, ECO:0000269|PubMed:28985504, CC ECO:0000269|PubMed:31536960}. CC -!- INTERACTION: CC Q16795; P78537: BLOC1S1; NbExp=3; IntAct=EBI-1045087, EBI-348630; CC Q16795; A8MQ03: CYSRT1; NbExp=3; IntAct=EBI-1045087, EBI-3867333; CC Q16795; P42858: HTT; NbExp=7; IntAct=EBI-1045087, EBI-466029; CC Q16795; Q3LI66: KRTAP6-2; NbExp=3; IntAct=EBI-1045087, EBI-11962084; CC Q16795; Q8NC60: NOA1; NbExp=2; IntAct=EBI-1045087, EBI-717871; CC -!- SUBCELLULAR LOCATION: Mitochondrion matrix CC {ECO:0000305|PubMed:12611891}. CC -!- PTM: Acetylated on lysine residues. BLOC1S1 is required for acetylation CC (PubMed:22309213). Acetylated by CLOCK in a circadian manner CC (PubMed:28985504). {ECO:0000269|PubMed:22309213, CC ECO:0000269|PubMed:28985504}. CC -!- DISEASE: Mitochondrial complex I deficiency, nuclear type 26 (MC1DN26) CC [MIM:618247]: A form of mitochondrial complex I deficiency, the most CC common biochemical signature of mitochondrial disorders, a group of CC highly heterogeneous conditions characterized by defective oxidative CC phosphorylation, which collectively affects 1 in 5-10000 live births. CC Clinical disorders have variable severity, ranging from lethal neonatal CC disease to adult-onset neurodegenerative disorders. Phenotypes include CC macrocephaly with progressive leukodystrophy, non-specific CC encephalopathy, cardiomyopathy, myopathy, liver disease, Leigh CC syndrome, Leber hereditary optic neuropathy, and some forms of CC Parkinson disease. MC1DN26 transmission pattern is consistent with CC autosomal recessive inheritance. {ECO:0000269|PubMed:22114105, CC ECO:0000269|PubMed:28671271}. Note=The disease is caused by variants CC affecting the gene represented in this entry. CC -!- SIMILARITY: Belongs to the complex I NDUFA9 subunit family. CC {ECO:0000305}. CC -!- SEQUENCE CAUTION: CC Sequence=CAA54099.1; Type=Frameshift; Evidence={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; AF050641; AAD42055.1; -; mRNA. DR EMBL; BC009311; AAH09311.1; -; mRNA. DR EMBL; BC015837; AAH15837.1; -; mRNA. DR EMBL; BC111546; AAI11547.1; -; mRNA. DR EMBL; X76665; CAA54099.1; ALT_FRAME; Genomic_DNA. DR EMBL; L04490; AAA36350.1; -; mRNA. DR CCDS; CCDS8532.1; -. DR PIR; I37258; I37258. DR RefSeq; NP_004993.1; NM_005002.4. DR PDB; 5XTB; EM; 3.40 A; J=40-376. DR PDB; 5XTD; EM; 3.70 A; J=40-376. DR PDB; 5XTH; EM; 3.90 A; J=40-376. DR PDB; 5XTI; EM; 17.40 A; BJ/J=40-376. DR PDBsum; 5XTB; -. DR PDBsum; 5XTD; -. DR PDBsum; 5XTH; -. DR PDBsum; 5XTI; -. DR AlphaFoldDB; Q16795; -. DR SMR; Q16795; -. DR BioGRID; 110784; 337. DR ComplexPortal; CPX-577; Mitochondrial respiratory chain complex I. DR CORUM; Q16795; -. DR DIP; DIP-38526N; -. DR IntAct; Q16795; 95. DR MINT; Q16795; -. DR STRING; 9606.ENSP00000266544; -. DR BindingDB; Q16795; -. DR ChEMBL; CHEMBL2363065; -. DR DrugBank; DB03147; Flavin adenine dinucleotide. DR DrugBank; DB00157; NADH. DR DrugCentral; Q16795; -. DR CarbonylDB; Q16795; -. DR GlyGen; Q16795; 1 site, 1 O-linked glycan (1 site). DR iPTMnet; Q16795; -. DR PhosphoSitePlus; Q16795; -. DR SwissPalm; Q16795; -. DR BioMuta; NDUFA9; -. DR DMDM; 2833280; -. DR EPD; Q16795; -. DR jPOST; Q16795; -. DR MassIVE; Q16795; -. DR MaxQB; Q16795; -. DR PaxDb; 9606-ENSP00000266544; -. DR PeptideAtlas; Q16795; -. DR ProteomicsDB; 61072; -. DR Pumba; Q16795; -. DR TopDownProteomics; Q16795; -. DR Antibodypedia; 22301; 308 antibodies from 29 providers. DR DNASU; 4704; -. DR Ensembl; ENST00000266544.10; ENSP00000266544.5; ENSG00000139180.11. DR GeneID; 4704; -. DR KEGG; hsa:4704; -. DR MANE-Select; ENST00000266544.10; ENSP00000266544.5; NM_005002.5; NP_004993.1. DR UCSC; uc001qnc.4; human. DR AGR; HGNC:7693; -. DR CTD; 4704; -. DR DisGeNET; 4704; -. DR GeneCards; NDUFA9; -. DR HGNC; HGNC:7693; NDUFA9. DR HPA; ENSG00000139180; Low tissue specificity. DR MalaCards; NDUFA9; -. DR MIM; 603834; gene. DR MIM; 618247; phenotype. DR neXtProt; NX_Q16795; -. DR OpenTargets; ENSG00000139180; -. DR PharmGKB; PA31499; -. DR VEuPathDB; HostDB:ENSG00000139180; -. DR eggNOG; KOG2865; Eukaryota. DR GeneTree; ENSGT00390000006865; -. DR HOGENOM; CLU_007383_6_4_1; -. DR InParanoid; Q16795; -. DR OMA; EDQFFNR; -. DR OrthoDB; 141210at2759; -. DR PhylomeDB; Q16795; -. DR TreeFam; TF105961; -. DR BioCyc; MetaCyc:HS06589-MONOMER; -. DR PathwayCommons; Q16795; -. DR Reactome; R-HSA-611105; Respiratory electron transport. DR Reactome; R-HSA-6799198; Complex I biogenesis. DR SignaLink; Q16795; -. DR SIGNOR; Q16795; -. DR BioGRID-ORCS; 4704; 185 hits in 1172 CRISPR screens. DR ChiTaRS; NDUFA9; human. DR GeneWiki; NDUFA9; -. DR GenomeRNAi; 4704; -. DR Pharos; Q16795; Tclin. DR PRO; PR:Q16795; -. DR Proteomes; UP000005640; Chromosome 12. DR RNAct; Q16795; Protein. DR Bgee; ENSG00000139180; Expressed in apex of heart and 205 other cell types or tissues. DR ExpressionAtlas; Q16795; baseline and differential. DR GO; GO:0005743; C:mitochondrial inner membrane; IDA:ComplexPortal. DR GO; GO:0005759; C:mitochondrial matrix; IDA:UniProtKB. DR GO; GO:0031966; C:mitochondrial membrane; IDA:UniProtKB. DR GO; GO:0005747; C:mitochondrial respiratory chain complex I; IDA:UniProtKB. DR GO; GO:0005739; C:mitochondrion; IBA:GO_Central. DR GO; GO:0005634; C:nucleus; HDA:UniProtKB. DR GO; GO:0008137; F:NADH dehydrogenase (ubiquinone) activity; NAS:UniProtKB. DR GO; GO:0003954; F:NADH dehydrogenase activity; IMP:UniProtKB. DR GO; GO:0044877; F:protein-containing complex binding; IDA:MGI. DR GO; GO:0009060; P:aerobic respiration; NAS:ComplexPortal. DR GO; GO:0007623; P:circadian rhythm; IDA:UniProtKB. DR GO; GO:0006120; P:mitochondrial electron transport, NADH to ubiquinone; NAS:UniProtKB. DR GO; GO:0032981; P:mitochondrial respiratory chain complex I assembly; IMP:UniProtKB. DR GO; GO:0042776; P:proton motive force-driven mitochondrial ATP synthesis; NAS:ComplexPortal. DR GO; GO:0006814; P:sodium ion transport; NAS:UniProtKB. DR GO; GO:1901006; P:ubiquinone-6 biosynthetic process; IBA:GO_Central. DR CDD; cd05271; NDUFA9_like_SDR_a; 1. DR Gene3D; 3.40.50.720; NAD(P)-binding Rossmann-like Domain; 1. DR InterPro; IPR001509; Epimerase_deHydtase. DR InterPro; IPR036291; NAD(P)-bd_dom_sf. DR PANTHER; PTHR12126:SF10; NADH DEHYDROGENASE [UBIQUINONE] 1 ALPHA SUBCOMPLEX SUBUNIT 9, MITOCHONDRIAL; 1. DR PANTHER; PTHR12126; NADH-UBIQUINONE OXIDOREDUCTASE 39 KDA SUBUNIT-RELATED; 1. DR Pfam; PF01370; Epimerase; 1. DR SUPFAM; SSF51735; NAD(P)-binding Rossmann-fold domains; 1. DR Genevisible; Q16795; HS. PE 1: Evidence at protein level; KW 3D-structure; Acetylation; Disease variant; Electron transport; FAD; KW Flavoprotein; Mitochondrion; Primary mitochondrial disease; KW Reference proteome; Respiratory chain; Transit peptide; Transport. FT TRANSIT 1..35 FT /note="Mitochondrion" FT /evidence="ECO:0000250" FT CHAIN 36..377 FT /note="NADH dehydrogenase [ubiquinone] 1 alpha subcomplex FT subunit 9, mitochondrial" FT /id="PRO_0000019992" FT MOD_RES 175 FT /note="N6-succinyllysine" FT /evidence="ECO:0000250|UniProtKB:Q9DC69" FT MOD_RES 189 FT /note="N6-acetyllysine" FT /evidence="ECO:0000250|UniProtKB:Q9DC69" FT MOD_RES 370 FT /note="N6-acetyllysine" FT /evidence="ECO:0000250|UniProtKB:Q9DC69" FT VARIANT 321 FT /note="R -> P (in MC1DN26; loss of function in complex I FT assembly; accumulation of several low and high molecular FT weight assembly intermediates is observed in patient FT fibroblasts; dbSNP:rs199592341)" FT /evidence="ECO:0000269|PubMed:22114105, FT ECO:0000269|PubMed:28671271" FT /id="VAR_078936" FT VARIANT 360 FT /note="R -> C (in MC1DN26; loss of function in complex I FT assembly; accumulation of several low and high molecular FT weight assembly intermediates is observed in patient FT fibroblasts; dbSNP:rs3210083)" FT /evidence="ECO:0000269|PubMed:28671271" FT /id="VAR_081457" FT STRAND 43..51 FT /evidence="ECO:0007829|PDB:5XTB" FT STRAND 55..57 FT /evidence="ECO:0007829|PDB:5XTB" FT TURN 59..62 FT /evidence="ECO:0007829|PDB:5XTB" FT HELIX 64..75 FT /evidence="ECO:0007829|PDB:5XTB" FT STRAND 79..84 FT /evidence="ECO:0007829|PDB:5XTB" FT HELIX 89..97 FT /evidence="ECO:0007829|PDB:5XTB" FT HELIX 100..102 FT /evidence="ECO:0007829|PDB:5XTB" FT STRAND 103..107 FT /evidence="ECO:0007829|PDB:5XTB" FT HELIX 114..119 FT /evidence="ECO:0007829|PDB:5XTB" FT TURN 120..122 FT /evidence="ECO:0007829|PDB:5XTB" FT STRAND 124..126 FT /evidence="ECO:0007829|PDB:5XTB" FT STRAND 137..139 FT /evidence="ECO:0007829|PDB:5XTB" FT HELIX 141..144 FT /evidence="ECO:0007829|PDB:5XTB" FT HELIX 147..159 FT /evidence="ECO:0007829|PDB:5XTB" FT STRAND 162..167 FT /evidence="ECO:0007829|PDB:5XTB" FT HELIX 179..194 FT /evidence="ECO:0007829|PDB:5XTB" FT STRAND 199..201 FT /evidence="ECO:0007829|PDB:5XTB" FT HELIX 212..223 FT /evidence="ECO:0007829|PDB:5XTB" FT STRAND 225..229 FT /evidence="ECO:0007829|PDB:5XTB" FT TURN 230..233 FT /evidence="ECO:0007829|PDB:5XTB" FT HELIX 242..254 FT /evidence="ECO:0007829|PDB:5XTB" FT HELIX 273..284 FT /evidence="ECO:0007829|PDB:5XTB" FT STRAND 290..293 FT /evidence="ECO:0007829|PDB:5XTB" FT HELIX 295..305 FT /evidence="ECO:0007829|PDB:5XTB" FT HELIX 316..323 FT /evidence="ECO:0007829|PDB:5XTB" FT HELIX 335..337 FT /evidence="ECO:0007829|PDB:5XTB" FT HELIX 345..347 FT /evidence="ECO:0007829|PDB:5XTB" FT HELIX 349..353 FT /evidence="ECO:0007829|PDB:5XTB" FT TURN 354..356 FT /evidence="ECO:0007829|PDB:5XTB" FT HELIX 359..362 FT /evidence="ECO:0007829|PDB:5XTB" FT HELIX 367..369 FT /evidence="ECO:0007829|PDB:5XTB" SQ SEQUENCE 377 AA; 42510 MW; 66A1CC7FCE86DD0E CRC64; MAAAAQSRVV RVLSMSRSAI TAIATSVCHG PPCRQLHHAL MPHGKGGRSS VSGIVATVFG ATGFLGRYVV NHLGRMGSQV IIPYRCDKYD IMHLRPMGDL GQLLFLEWDA RDKDSIRRVV QHSNVVINLI GRDWETKNFD FEDVFVKIPQ AIAQLSKEAG VEKFIHVSHL NANIKSSSRY LRNKAVGEKV VRDAFPEAII VKPSDIFGRE DRFLNSFASM HRFGPIPLGS LGWKTVKQPV YVVDVSKGIV NAVKDPDANG KSFAFVGPSR YLLFHLVKYI FAVAHRLFLP FPLPLFAYRW VARVFEISPF EPWITRDKVE RMHITDMKLP HLPGLEDLGI QATPLELKAI EVLRRHRTYR WLSAEIEDVK PAKTVNI //