ID NDUB3_HUMAN Reviewed; 98 AA. AC O43676; Q6IB80; DT 15-JUL-1999, integrated into UniProtKB/Swiss-Prot. DT 23-JAN-2007, sequence version 3. DT 02-SEP-2026, entry version 195. DE RecName: Full=NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 3; DE AltName: Full=Complex I-B12; DE Short=CI-B12; DE AltName: Full=NADH-ubiquinone oxidoreductase B12 subunit; GN Name=NDUFB3; 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]. RC TISSUE=Heart; RX PubMed=9425316; DOI=10.1006/bbrc.1997.7707; RA Ton C., Hwang D.M., Dempsey A.A., Liew C.-C.; RT "Identification and primary structure of five human NADH-ubiquinone RT oxidoreductase subunits."; RL Biochem. Biophys. Res. Commun. 241:589-594(1997). RN [2] RP NUCLEOTIDE SEQUENCE [MRNA]. RX PubMed=9878551; DOI=10.1006/bbrc.1998.9786; RA Loeffen J.L.C.M., Triepels R.H., van den Heuvel L.P., Schuelke M., RA Buskens C.A.F., Smeets R.J.P., Trijbels J.M.F., Smeitink J.A.M.; RT "cDNA of eight nuclear encoded subunits of NADH:ubiquinone oxidoreductase: RT human complex I cDNA characterization completed."; RL Biochem. Biophys. Res. Commun. 253:415-422(1998). RN [3] RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. RA Ebert L., Schick M., Neubert P., Schatten R., Henze S., Korn B.; RT "Cloning of human full open reading frames in Gateway(TM) system entry RT vector (pDONR201)."; RL Submitted (JUN-2004) to the EMBL/GenBank/DDBJ databases. RN [4] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RX PubMed=15815621; DOI=10.1038/nature03466; RA Hillier L.W., Graves T.A., Fulton R.S., Fulton L.A., Pepin K.H., Minx P., RA Wagner-McPherson C., Layman D., Wylie K., Sekhon M., Becker M.C., RA Fewell G.A., Delehaunty K.D., Miner T.L., Nash W.E., Kremitzki C., Oddy L., RA Du H., Sun H., Bradshaw-Cordum H., Ali J., Carter J., Cordes M., Harris A., RA Isak A., van Brunt A., Nguyen C., Du F., Courtney L., Kalicki J., RA Ozersky P., Abbott S., Armstrong J., Belter E.A., Caruso L., Cedroni M., RA Cotton M., Davidson T., Desai A., Elliott G., Erb T., Fronick C., Gaige T., RA Haakenson W., Haglund K., Holmes A., Harkins R., Kim K., Kruchowski S.S., RA Strong C.M., Grewal N., Goyea E., Hou S., Levy A., Martinka S., Mead K., RA McLellan M.D., Meyer R., Randall-Maher J., Tomlinson C., RA Dauphin-Kohlberg S., Kozlowicz-Reilly A., Shah N., Swearengen-Shahid S., RA Snider J., Strong J.T., Thompson J., Yoakum M., Leonard S., Pearman C., RA Trani L., Radionenko M., Waligorski J.E., Wang C., Rock S.M., RA Tin-Wollam A.-M., Maupin R., Latreille P., Wendl M.C., Yang S.-P., Pohl C., RA Wallis J.W., Spieth J., Bieri T.A., Berkowicz N., Nelson J.O., Osborne J., RA Ding L., Meyer R., Sabo A., Shotland Y., Sinha P., Wohldmann P.E., RA Cook L.L., Hickenbotham M.T., Eldred J., Williams D., Jones T.A., She X., RA Ciccarelli F.D., Izaurralde E., Taylor J., Schmutz J., Myers R.M., RA Cox D.R., Huang X., McPherson J.D., Mardis E.R., Clifton S.W., Warren W.C., RA Chinwalla A.T., Eddy S.R., Marra M.A., Ovcharenko I., Furey T.S., RA Miller W., Eichler E.E., Bork P., Suyama M., Torrents D., Waterston R.H., RA Wilson R.K.; RT "Generation and annotation of the DNA sequences of human chromosomes 2 and RT 4."; RL Nature 434:724-731(2005). RN [5] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RA Mural R.J., Istrail S., Sutton G., Florea L., Halpern A.L., Mobarry C.M., RA Lippert R., Walenz B., Shatkay H., Dew I., Miller J.R., Flanigan M.J., RA Edwards N.J., Bolanos R., Fasulo D., Halldorsson B.V., Hannenhalli S., RA Turner R., Yooseph S., Lu F., Nusskern D.R., Shue B.C., Zheng X.H., RA Zhong F., Delcher A.L., Huson D.H., Kravitz S.A., Mouchard L., Reinert K., RA Remington K.A., Clark A.G., Waterman M.S., Eichler E.E., Adams M.D., RA Hunkapiller M.W., Myers E.W., Venter J.C.; RL Submitted (JUL-2005) to the EMBL/GenBank/DDBJ databases. RN [6] RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. RC TISSUE=Lung; 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 [7] 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 [8] 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 [9] RP INVOLVEMENT IN MC1DN25, AND VARIANTS MC1DN25 ARG-22 AND 70-GLY--HIS-98 DEL. RX PubMed=22499348; DOI=10.1136/jmedgenet-2012-100846; RA Haack T.B., Haberberger B., Frisch E.M., Wieland T., Iuso A., Gorza M., RA Strecker V., Graf E., Mayr J.A., Herberg U., Hennermann J.B., Klopstock T., RA Kuhn K.A., Ahting U., Sperl W., Wilichowski E., Hoffmann G.F., Tesarova M., RA Hansikova H., Zeman J., Plecko B., Zeviani M., Wittig I., Strom T.M., RA Schuelke M., Freisinger P., Meitinger T., Prokisch H.; RT "Molecular diagnosis in mitochondrial complex I deficiency using exome RT sequencing."; RL J. Med. Genet. 49:277-283(2012). RN [10] 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 [11] 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 [12] RP METHYLATION AT HIS-5; HIS-7 AND HIS-9, AND MUTAGENESIS OF 5-HIS--HIS-9. RX PubMed=33563959; DOI=10.1038/s41467-020-20670-7; RA Davydova E., Shimazu T., Schuhmacher M.K., Jakobsson M.E., RA Willemen H.L.D.M., Liu T., Moen A., Ho A.Y.Y., Malecki J., Schroer L., RA Pinto R., Suzuki T., Groensberg I.A., Sohtome Y., Akakabe M., Weirich S., RA Kikuchi M., Olsen J.V., Dohmae N., Umehara T., Sodeoka M., Siino V., RA McDonough M.A., Eijkelkamp N., Schofield C.J., Jeltsch A., Shinkai Y., RA Falnes P.O.; RT "The methyltransferase METTL9 mediates pervasive 1-methylhistidine RT modification in mammalian proteomes."; RL Nat. Commun. 12:891-891(2021). RN [13] RP VARIANT MC1DN25 ARG-22. RX PubMed=27091925; DOI=10.1136/jmedgenet-2015-103576; RA Alston C.L., Howard C., Olahova M., Hardy S.A., He L., Murray P.G., RA O'Sullivan S., Doherty G., Shield J.P., Hargreaves I.P., Monavari A.A., RA Knerr I., McCarthy P., Morris A.A., Thorburn D.R., Prokisch H., RA Clayton P.E., McFarland R., Hughes J., Crushell E., Taylor R.W.; RT "A recurrent mitochondrial p.Trp22Arg NDUFB3 variant causes a distinctive RT facial appearance, short stature and a mild biochemical and clinical RT phenotype."; RL J. Med. Genet. 53:634-641(2016). 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. 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:27626371}. CC -!- SUBUNIT: Complex I is composed of 45 different subunits. CC {ECO:0000269|PubMed:12611891, ECO:0000269|PubMed:27626371}. CC -!- SUBCELLULAR LOCATION: Mitochondrion inner membrane CC {ECO:0000305|PubMed:12611891}; Single-pass membrane protein CC {ECO:0000305}; Matrix side {ECO:0000305}. CC -!- PTM: Methylation at His residues by METTL9 enhances complex I-mediated CC mitochondrial respiration. {ECO:0000269|PubMed:33563959}. CC -!- DISEASE: Mitochondrial complex I deficiency, nuclear type 25 (MC1DN25) CC [MIM:618246]: 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. MC1DN25 transmission pattern is consistent with CC autosomal recessive inheritance. {ECO:0000269|PubMed:22499348, CC ECO:0000269|PubMed:27091925}. Note=The disease is caused by variants CC affecting the gene represented in this entry. CC -!- SIMILARITY: Belongs to the complex I NDUFB3 subunit 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; AF047183; AAC04268.1; -; mRNA. DR EMBL; AF035839; AAC15590.1; -; mRNA. DR EMBL; CR456924; CAG33205.1; -; mRNA. DR EMBL; AC007272; AAX88972.1; -; Genomic_DNA. DR EMBL; CH471063; EAW70233.1; -; Genomic_DNA. DR EMBL; BC018183; AAH18183.1; -; mRNA. DR CCDS; CCDS2336.1; -. DR PIR; JC5822; JC5822. DR RefSeq; NP_001244031.1; NM_001257102.2. DR RefSeq; NP_002482.1; NM_002491.3. DR RefSeq; XP_011509532.1; XM_011511230.4. DR RefSeq; XP_047300444.1; XM_047444488.1. DR RefSeq; XP_054198228.1; XM_054342253.1. DR RefSeq; XP_054198229.1; XM_054342254.1. DR PDB; 5XTC; EM; 3.70 A; Z=10-89. DR PDB; 5XTD; EM; 3.70 A; Z=10-89. DR PDB; 5XTH; EM; 3.90 A; Z=10-89. DR PDB; 5XTI; EM; 17.40 A; BZ/Z=10-89. DR PDB; 9CWT; EM; 3.44 A; Z=1-98. DR PDB; 9I4I; EM; 2.63 A; Z=1-98. DR PDB; 9TI4; EM; 2.66 A; Z=10-92. DR AlphaFoldDB; O43676; -. DR EMDB; EMD-45974; -. DR EMDB; EMD-52619; -. DR SMR; O43676; -. DR BioGRID; 110789; 118. DR ComplexPortal; CPX-577; Mitochondrial respiratory chain complex I. DR CORUM; O43676; -. DR FunCoup; O43676; 562. DR IntAct; O43676; 101. DR MINT; O43676; -. DR NDEx; IQUERY-CP-NDUFB3; 3 NDEx IQuery Curated Pathways. DR STRING; 9606.ENSP00000407336; -. DR BindingDB; O43676; -. DR ChEMBL; CHEMBL2363065; -. DR DrugBank; DB00157; NADH. DR DrugCentral; O43676; -. DR iPTMnet; O43676; -. DR PhosphoSitePlus; O43676; -. DR BioMuta; NDUFB3; -. DR jPOST; O43676; -. DR MassIVE; O43676; -. DR PaxDb; 9606-ENSP00000407336; -. DR PeptideAtlas; O43676; -. DR ProteomicsDB; 49104; -. DR Pumba; O43676; -. DR TopDownProteomics; O43676; -. DR Antibodypedia; 34135; 137 antibodies from 28 providers. DR DNASU; 4709; -. DR Ensembl; ENST00000237889.9; ENSP00000237889.4; ENSG00000119013.11. DR Ensembl; ENST00000433898.5; ENSP00000410600.1; ENSG00000119013.11. DR Ensembl; ENST00000450023.6; ENSP00000401834.2; ENSG00000119013.11. DR Ensembl; ENST00000454214.1; ENSP00000407336.1; ENSG00000119013.11. DR Ensembl; ENST00000682325.1; ENSP00000507925.1; ENSG00000119013.11. DR Ensembl; ENST00000684175.1; ENSP00000508132.1; ENSG00000119013.11. DR Ensembl; ENST00000684420.1; ENSP00000508208.1; ENSG00000119013.11. DR Ensembl; ENST00000878930.1; ENSP00000548989.1; ENSG00000119013.11. DR Ensembl; ENST00000878931.1; ENSP00000548990.1; ENSG00000119013.11. DR Ensembl; ENST00000878932.1; ENSP00000548991.1; ENSG00000119013.11. DR Ensembl; ENST00000928296.1; ENSP00000598355.1; ENSG00000119013.11. DR Ensembl; ENST00000928297.1; ENSP00000598356.1; ENSG00000119013.11. DR Ensembl; ENST00000928298.1; ENSP00000598357.1; ENSG00000119013.11. DR Ensembl; ENST00000928299.1; ENSP00000598358.1; ENSG00000119013.11. DR Ensembl; ENST00000928300.1; ENSP00000598359.1; ENSG00000119013.11. DR Ensembl; ENST00000928301.1; ENSP00000598360.1; ENSG00000119013.11. DR Ensembl; ENST00000928302.1; ENSP00000598361.1; ENSG00000119013.11. DR Ensembl; ENST00000928303.1; ENSP00000598362.1; ENSG00000119013.11. DR Ensembl; ENST00000928304.1; ENSP00000598363.1; ENSG00000119013.11. DR Ensembl; ENST00000953983.1; ENSP00000624042.1; ENSG00000119013.11. DR Ensembl; ENST00000953984.1; ENSP00000624043.1; ENSG00000119013.11. DR GeneID; 4709; -. DR KEGG; hsa:4709; -. DR MANE-Select; ENST00000237889.9; ENSP00000237889.4; NM_002491.3; NP_002482.1. DR UCSC; uc002uwx.6; human. DR AGR; HGNC:7698; -. DR ClinPGx; PA31504; -. DR CTD; 4709; -. DR DisGeNET; 4709; -. DR GeneCards; NDUFB3; -. DR HGNC; HGNC:7698; NDUFB3. DR HPA; ENSG00000119013; Tissue enhanced (skeletal muscle, tongue). DR MalaCards; NDUFB3; -. DR MIM; 603839; gene. DR MIM; 618246; phenotype. DR OpenTargets; ENSG00000119013; -. DR Orphanet; 2609; Isolated complex I deficiency. DR VEuPathDB; HostDB:ENSG00000119013; -. DR eggNOG; KOG4631; Eukaryota. DR GeneTree; ENSGT00390000010316; -. DR HOGENOM; CLU_160226_1_0_1; -. DR InParanoid; O43676; -. DR OMA; YMGGFAH; -. DR OrthoDB; 521512at2759; -. DR PAN-GO; O43676; 1 GO annotation based on evolutionary models. DR PhylomeDB; O43676; -. DR BioCyc; MetaCyc:HS04271-MONOMER; -. DR PathwayCommons; O43676; -. DR Reactome; R-HSA-611105; Respiratory electron transport. DR Reactome; R-HSA-6799198; Complex I biogenesis. DR SignaLink; O43676; -. DR SIGNOR; O43676; -. DR Agora; ENSG00000119013; -. DR BioGRID-ORCS; 4709; 436 hits in 1068 CRISPR screens. DR ChiTaRS; NDUFB3; human. DR GenomeRNAi; 4709; -. DR Pharos; O43676; Tclin. DR PRO; PR:O43676; -. DR Proteomes; UP000005640; Chromosome 2. DR RNAct; O43676; protein. DR Bgee; ENSG00000119013; Expressed in right atrium auricular region and 207 other cell types or tissues. DR ExpressionAtlas; O43676; baseline and differential. DR GO; GO:0005743; C:mitochondrial inner membrane; IDA:ComplexPortal. DR GO; GO:0005739; C:mitochondrion; HTP:FlyBase. DR GO; GO:0045271; C:respiratory chain complex I; IDA:UniProtKB. DR GO; GO:0008137; F:NADH dehydrogenase (ubiquinone) activity; TAS:ProtInc. DR GO; GO:0009060; P:aerobic respiration; NAS:ComplexPortal. DR GO; GO:0006120; P:mitochondrial electron transport, NADH to ubiquinone; TAS:ProtInc. DR GO; GO:0042776; P:proton motive force-driven mitochondrial ATP synthesis; NAS:ComplexPortal. DR InterPro; IPR012576; NDUFB3. DR PANTHER; PTHR15082:SF2; NADH DEHYDROGENASE [UBIQUINONE] 1 BETA SUBCOMPLEX SUBUNIT 3; 1. DR PANTHER; PTHR15082; NADH-UBIQUINONE OXIDOREDUCTASE B12 SUBUNIT; 1. DR Pfam; PF08122; NDUF_B12; 1. DR PDBsum; 5XTC; -. DR PDBsum; 5XTD; -. DR PDBsum; 5XTH; -. DR PDBsum; 5XTI; -. DR PDBsum; 9CWT; -. DR PDBsum; 9I4I; -. DR PDBsum; 9TI4; -. PE 1: Evidence at protein level; KW 3D-structure; Acetylation; Disease variant; Electron transport; Membrane; KW Methylation; Mitochondrion; Mitochondrion inner membrane; KW Primary mitochondrial disease; Proteomics identification; KW Reference proteome; Respiratory chain; Transmembrane; Transmembrane helix; KW Transport. FT INIT_MET 1 FT /note="Removed" FT /evidence="ECO:0000250|UniProtKB:Q02365" FT CHAIN 2..98 FT /note="NADH dehydrogenase [ubiquinone] 1 beta subcomplex FT subunit 3" FT /id="PRO_0000118797" FT TRANSMEM 66..88 FT /note="Helical" FT /evidence="ECO:0000255" FT MOD_RES 2 FT /note="N-acetylalanine" FT /evidence="ECO:0000250|UniProtKB:Q02365" FT MOD_RES 5 FT /note="Pros-methylhistidine" FT /evidence="ECO:0000269|PubMed:33563959" FT MOD_RES 7 FT /note="Pros-methylhistidine" FT /evidence="ECO:0000269|PubMed:33563959" FT MOD_RES 9 FT /note="Pros-methylhistidine" FT /evidence="ECO:0000269|PubMed:33563959" FT MOD_RES 23 FT /note="N6-acetyllysine; alternate" FT /evidence="ECO:0000250|UniProtKB:Q9CQZ6" FT MOD_RES 23 FT /note="N6-succinyllysine; alternate" FT /evidence="ECO:0000250|UniProtKB:Q9CQZ6" FT MOD_RES 34 FT /note="N6-acetyllysine; alternate" FT /evidence="ECO:0000250|UniProtKB:Q9CQZ6" FT MOD_RES 34 FT /note="N6-succinyllysine; alternate" FT /evidence="ECO:0000250|UniProtKB:Q9CQZ6" FT VARIANT 22 FT /note="W -> R (in MC1DN25; dbSNP:rs142609245)" FT /evidence="ECO:0000269|PubMed:22499348, FT ECO:0000269|PubMed:27091925" FT /id="VAR_078939" FT VARIANT 70..98 FT /note="Missing (in MC1DN25)" FT /evidence="ECO:0000269|PubMed:22499348" FT /id="VAR_078940" FT MUTAGEN 5..9 FT /note="HGHEH->RGHER: Abolished histidine methylation by FT METTL9." FT /evidence="ECO:0000269|PubMed:33563959" FT HELIX 16..18 FT /evidence="ECO:0007829|PDB:9CWT" FT STRAND 24..27 FT /evidence="ECO:0007829|PDB:9CWT" FT HELIX 29..38 FT /evidence="ECO:0007829|PDB:9CWT" FT HELIX 46..50 FT /evidence="ECO:0007829|PDB:9CWT" FT HELIX 55..57 FT /evidence="ECO:0007829|PDB:9CWT" FT HELIX 60..62 FT /evidence="ECO:0007829|PDB:9CWT" FT HELIX 63..67 FT /evidence="ECO:0007829|PDB:9CWT" FT STRAND 68..70 FT /evidence="ECO:0007829|PDB:9CWT" FT HELIX 71..80 FT /evidence="ECO:0007829|PDB:9CWT" SQ SEQUENCE 98 AA; 11402 MW; 1C77F0C7A4DC757F CRC64; MAHEHGHEHG HHKMELPDYR QWKIEGTPLE TIQKKLAAKG LRDPWGRNEA WRYMGGFAKS VSFSDVFFKG FKWGFAAFVV AVGAEYYLES LNKDKKHH //