Hmdb loader
Identification
HMDB Protein ID HMDBP00120
Secondary Accession Numbers
  • 5352
  • HMDBP03476
Name NADH dehydrogenase [ubiquinone] iron-sulfur protein 2, mitochondrial
Synonyms
  1. CI-49kD
  2. Complex I-49kD
  3. NADH-ubiquinone oxidoreductase 49 kDa subunit
Gene Name NDUFS2
Protein Type Unknown
Biological Properties
General Function Involved in oxidoreductase activity, acting on NADH or NADPH
Specific Function Core subunit of the mitochondrial membrane respiratory chain NADH dehydrogenase (Complex I) that is believed to belong to the minimal assembly required for catalysis. Complex I functions in the transfer of electrons from NADH to the respiratory chain. The immediate electron acceptor for the enzyme is believed to be ubiquinone (By similarity).
Pathways
  • Alzheimer disease
  • Doxorubicin Metabolism Pathway
  • Huntington disease
  • Oxidative phosphorylation
  • Parkinson disease
Reactions
NADH + Coenzyme Q10 → NAD + QH(2) details
NADH + acceptor → NAD + reduced acceptor details
GO Classification
Biological Process
small molecule metabolic process
mitochondrial electron transport, NADH to ubiquinone
response to oxidative stress
Cellular Component
mitochondrial respiratory chain complex I
Function
binding
nucleotide binding
catalytic activity
nad or nadh binding
quinone binding
cofactor binding
oxidoreductase activity
oxidoreductase activity, acting on nadh or nadph
Molecular Function
electron carrier activity
NAD binding
metal ion binding
4 iron, 4 sulfur cluster binding
NADH dehydrogenase (ubiquinone) activity
quinone binding
Process
metabolic process
oxidation reduction
Cellular Location
  1. Peripheral membrane protein
  2. Mitochondrion inner membrane
  3. Matrix side
Gene Properties
Chromosome Location 1
Locus 1q23
SNPs NDUFS2
Gene Sequence
>1392 bp
ATGGCGGCGCTGAGGGCTTTGTGCGGCTTCCGGGGCGTCGCGGCCCAGGTGCTGCGGCCT
GGGGCTGGAGTCCGATTGCCGATTCAGCCCAGCAGAGGTGTTCGGCAGTGGCAGCCAGAT
GTGGAATGGGCACAGCAGTTTGGGGGAGCTGTTATGTACCCAAGCAAAGAAACAGCCCAC
TGGAAGCCTCCACCTTGGAATGATGTGGACCCTCCAAAGGACACAATTGTGAAGAACATT
ACCCTGAACTTTGGGCCCCAACACCCAGCAGCGCATGGTGTCCTGCGACTAGTGATGGAA
TTGAGTGGGGAGATGGTGCGGAAGTGTGATCCTCACATCGGGCTCCTGCACCGAGGCACT
GAGAAGCTCATTGAATACAAGACCTATCTTCAGGCCCTTCCATACTTTGACCGGCTAGAC
TATGTGTCCATGATGTGTAACGAACAGGCCTATTCTCTAGCTGTGGAGAAGTTGCTAAAC
ATCCGGCCTCCTCCTCGGGCACAGTGGATCCGAGTGCTGTTTGGAGAAATCACACGTTTG
TTGAACCACATCATGGCTGTGACCACACATGCCCTGGACCTTGGGGCCATGACCCCTTTC
TTCTGGCTGTTTGAAGAAAGGGAGAAGATGTTTGAGTTCTACGAGCGAGTGTCTGGAGCC
CGAATGCATGCTGCTTATATCCGGCCAGGAGGAGTGCACCAGGACCTACCCCTTGGGCTT
ATGGATGACATTTATCAGTTTTCTAAGAACTTCTCTCTTCGGCTTGATGAGTTGGAGGAG
TTGCTGACCAACAATAGGATCTGGCGAAATCGGACAATTGACATTGGGGTTGTAACAGCA
GAAGAAGCACTTAACTATGGTTTTAGTGGAGTGATGCTTCGGGGCTCAGGCATCCAGTGG
GACCTGCGGAAGACCCAGCCCTATGATGTTTACGACCAGGTTGAGTTTGATGTTCCTGTT
GGTTCTCGAGGGGACTGCTATGATAGGTACCTGTGCCGGGTGGAGGAGATGCGCCAGTCC
CTGAGAATTATCGCACAGTGTCTAAACAAGATGCCTCCTGGGGAGATCAAGGTTGATGAT
GCCAAAGTGTCTCCACCTAAGCGAGCAGAGATGAAGACTTCCATGGAGTCACTGATTCAT
CACTTTAAGTTGTATACTGAGGGCTACCAAGTTCCTCCAGGAGCCACATATACTGCCATT
GAGGCTCCCAAGGGAGAGTTTGGGGTGTACCTGGTGTCTGATGGCAGCAGCCGCCCTTAT
CGATGCAAGATCAAGGCTCCTGGTTTTGCCCATCTGGCTGGTTTGGACAAGATGTCTAAG
GGACACATGTTGGCAGATGTCGTTGCCATCATAGGTACCCAAGATATTGTATTTGGAGAA
GTAGATCGGTGA
Protein Properties
Number of Residues 463
Molecular Weight 51851.59
Theoretical pI 8.145
Pfam Domain Function
Signals Not Available
Transmembrane Regions Not Available
Protein Sequence
>NADH dehydrogenase [ubiquinone] iron-sulfur protein 2, mitochondrial
MAALRALCGFRGVAAQVLRPGAGVRLPIQPSRGVRQWQPDVEWAQQFGGAVMYPSKETAH
WKPPPWNDVDPPKDTIVKNITLNFGPQHPAAHGVLRLVMELSGEMVRKCDPHIGLLHRGT
EKLIEYKTYLQALPYFDRLDYVSMMCNEQAYSLAVEKLLNIRPPPRAQWIRVLFGEITRL
LNHIMAVTTHALDLGAMTPFFWLFEEREKMFEFYERVSGARMHAAYIRPGGVHQDLPLGL
MDDIYQFSKNFSLRLDELEELLTNNRIWRNRTIDIGVVTAEEALNYGFSGVMLRGSGIQW
DLRKTQPYDVYDQVEFDVPVGSRGDCYDRYLCRVEEMRQSLRIIAQCLNKMPPGEIKVDD
AKVSPPKRAEMKTSMESLIHHFKLYTEGYQVPPGATYTAIEAPKGEFGVYLVSDGSSRPY
RCKIKAPGFAHLAGLDKMSKGHMLADVVAIIGTQDIVFGEVDR
GenBank ID Protein Not Available
UniProtKB/Swiss-Prot ID O75306
UniProtKB/Swiss-Prot Entry Name NDUS2_HUMAN
PDB IDs Not Available
GenBank Gene ID AF050640
GeneCard ID NDUFS2
GenAtlas ID NDUFS2
HGNC ID HGNC:7708
References
General References
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  3. Murray J, Zhang B, Taylor SW, Oglesbee D, Fahy E, Marusich MF, Ghosh SS, Capaldi RA: The subunit composition of the human NADH dehydrogenase obtained by rapid one-step immunopurification. J Biol Chem. 2003 Apr 18;278(16):13619-22. Epub 2003 Feb 28. [PubMed:12611891 ]
  4. Loeffen J, van den Heuvel L, Smeets R, Triepels R, Sengers R, Trijbels F, Smeitink J: cDNA sequence and chromosomal localization of the remaining three human nuclear encoded iron sulphur protein (IP) subunits of complex I: the human IP fraction is completed. Biochem Biophys Res Commun. 1998 Jun 29;247(3):751-8. [PubMed:9647766 ]
  5. Procaccio V, de Sury R, Martinez P, Depetris D, Rabilloud T, Soularue P, Lunardi J, Issartel J: Mapping to 1q23 of the human gene (NDUFS2) encoding the 49-kDa subunit of the mitochondrial respiratory Complex I and immunodetection of the mature protein in mitochondria. Mamm Genome. 1998 Jun;9(6):482-4. [PubMed:9585441 ]
  6. Saada A, Vogel RO, Hoefs SJ, van den Brand MA, Wessels HJ, Willems PH, Venselaar H, Shaag A, Barghuti F, Reish O, Shohat M, Huynen MA, Smeitink JA, van den Heuvel LP, Nijtmans LG: Mutations in NDUFAF3 (C3ORF60), encoding an NDUFAF4 (C6ORF66)-interacting complex I assembly protein, cause fatal neonatal mitochondrial disease. Am J Hum Genet. 2009 Jun;84(6):718-27. doi: 10.1016/j.ajhg.2009.04.020. Epub 2009 May 21. [PubMed:19463981 ]
  7. Loeffen J, Elpeleg O, Smeitink J, Smeets R, Stockler-Ipsiroglu S, Mandel H, Sengers R, Trijbels F, van den Heuvel L: Mutations in the complex I NDUFS2 gene of patients with cardiomyopathy and encephalomyopathy. Ann Neurol. 2001 Feb;49(2):195-201. [PubMed:11220739 ]