ID A0A2Z5UY12_9EUCA Unreviewed; 513 AA. AC A0A2Z5UY12; DT 10-OCT-2018, integrated into UniProtKB/TrEMBL. DT 10-OCT-2018, sequence version 1. DT 14-DEC-2022, entry version 13. DE RecName: Full=NADH-ubiquinone oxidoreductase chain 4 {ECO:0000256|ARBA:ARBA00021006, ECO:0000256|RuleBase:RU003297}; DE EC=7.1.1.2 {ECO:0000256|ARBA:ARBA00012944, ECO:0000256|RuleBase:RU003297}; GN Name=ND4 {ECO:0000313|EMBL:BBB16292.1}; OS Pagurus gracilipes. OG Mitochondrion {ECO:0000313|EMBL:BBB16292.1}. OC Eukaryota; Metazoa; Ecdysozoa; Arthropoda; Crustacea; Multicrustacea; OC Malacostraca; Eumalacostraca; Eucarida; Decapoda; Pleocyemata; Anomura; OC Paguroidea; Paguridae; Pagurus. OX NCBI_TaxID=1929474 {ECO:0000313|EMBL:BBB16292.1}; RN [1] {ECO:0000313|EMBL:BBB16292.1} RP NUCLEOTIDE SEQUENCE. RA Sultana Z., Asakura A., Kinjo S., Nozawa M., Nakano T., Ikeo K.; RT "Molecular phylogeny of ten intertidal hermit crabs of the genus Pagurus RT inferred from multiple mitochondrial genes, with special emphasis on the RT evolutionary relationship of Pagurus lanuginosus and Pagurus maculosus."; RL Genetica 0:0-0(2017). CC -!- FUNCTION: Core subunit of the mitochondrial membrane respiratory chain CC NADH dehydrogenase (Complex I) that is believed to belong to the CC minimal assembly required for catalysis. Complex I functions in the CC transfer of electrons from NADH to the respiratory chain. The immediate CC electron acceptor for the enzyme is believed to be ubiquinone. CC {ECO:0000256|ARBA:ARBA00003257}. CC -!- FUNCTION: Core subunit of the mitochondrial membrane respiratory chain CC NADH dehydrogenase (Complex I) which catalyzes electron transfer from CC NADH through the respiratory chain, using ubiquinone as an electron CC acceptor. Essential for the catalytic activity and assembly of complex CC I. {ECO:0000256|RuleBase:RU003297}. CC -!- CATALYTIC ACTIVITY: CC Reaction=a ubiquinone + 5 H(+)(in) + NADH = a ubiquinol + 4 H(+)(out) + CC NAD(+); Xref=Rhea:RHEA:29091, Rhea:RHEA-COMP:9565, Rhea:RHEA- CC COMP:9566, ChEBI:CHEBI:15378, ChEBI:CHEBI:16389, ChEBI:CHEBI:17976, CC ChEBI:CHEBI:57540, ChEBI:CHEBI:57945; EC=7.1.1.2; CC Evidence={ECO:0000256|ARBA:ARBA00000766, CC ECO:0000256|RuleBase:RU003297}; CC -!- SUBCELLULAR LOCATION: Membrane {ECO:0000256|ARBA:ARBA00004141}; Multi- CC pass membrane protein {ECO:0000256|ARBA:ARBA00004141}. Mitochondrion CC membrane {ECO:0000256|RuleBase:RU003297}; Multi-pass membrane protein CC {ECO:0000256|RuleBase:RU003297}. CC -!- SIMILARITY: Belongs to the complex I subunit 4 family. CC {ECO:0000256|ARBA:ARBA00009025, ECO:0000256|RuleBase:RU003297}. 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; LC222534; BBB16292.1; -; Genomic_DNA. DR AlphaFoldDB; A0A2Z5UY12; -. DR GO; GO:0031966; C:mitochondrial membrane; IEA:UniProtKB-SubCell. DR GO; GO:0070469; C:respirasome; IEA:UniProtKB-KW. DR GO; GO:0008137; F:NADH dehydrogenase (ubiquinone) activity; IEA:UniProtKB-UniRule. DR GO; GO:0042773; P:ATP synthesis coupled electron transport; IEA:InterPro. DR InterPro; IPR000260; NADH4_N. DR InterPro; IPR003918; NADH_UbQ_OxRdtase. DR InterPro; IPR001750; ND/Mrp_mem. DR PANTHER; PTHR43507; NADH-UBIQUINONE OXIDOREDUCTASE CHAIN 4; 1. DR Pfam; PF01059; Oxidored_q5_N; 1. DR Pfam; PF00361; Proton_antipo_M; 1. DR PRINTS; PR01437; NUOXDRDTASE4. PE 3: Inferred from homology; KW Electron transport {ECO:0000256|RuleBase:RU003297}; KW Membrane {ECO:0000256|RuleBase:RU003297}; KW Mitochondrion {ECO:0000256|RuleBase:RU003297, ECO:0000313|EMBL:BBB16292.1}; KW NAD {ECO:0000256|RuleBase:RU003297}; KW Respiratory chain {ECO:0000256|RuleBase:RU003297}; KW Transmembrane {ECO:0000256|RuleBase:RU003297}; KW Transmembrane helix {ECO:0000256|RuleBase:RU003297}; KW Transport {ECO:0000256|RuleBase:RU003297}; KW Ubiquinone {ECO:0000256|RuleBase:RU003297}. FT TRANSMEM 53..70 FT /note="Helical" FT /evidence="ECO:0000256|RuleBase:RU003297" FT TRANSMEM 82..101 FT /note="Helical" FT /evidence="ECO:0000256|RuleBase:RU003297" FT TRANSMEM 107..129 FT /note="Helical" FT /evidence="ECO:0000256|RuleBase:RU003297" FT TRANSMEM 141..161 FT /note="Helical" FT /evidence="ECO:0000256|RuleBase:RU003297" FT TRANSMEM 181..204 FT /note="Helical" FT /evidence="ECO:0000256|RuleBase:RU003297" FT TRANSMEM 216..235 FT /note="Helical" FT /evidence="ECO:0000256|RuleBase:RU003297" FT TRANSMEM 247..266 FT /note="Helical" FT /evidence="ECO:0000256|RuleBase:RU003297" FT TRANSMEM 273..295 FT /note="Helical" FT /evidence="ECO:0000256|RuleBase:RU003297" FT TRANSMEM 301..322 FT /note="Helical" FT /evidence="ECO:0000256|RuleBase:RU003297" FT TRANSMEM 343..361 FT /note="Helical" FT /evidence="ECO:0000256|RuleBase:RU003297" FT TRANSMEM 381..401 FT /note="Helical" FT /evidence="ECO:0000256|RuleBase:RU003297" FT TRANSMEM 422..443 FT /note="Helical" FT /evidence="ECO:0000256|RuleBase:RU003297" FT TRANSMEM 481..501 FT /note="Helical" FT /evidence="ECO:0000256|RuleBase:RU003297" FT DOMAIN 1..100 FT /note="Oxidored_q5_N" FT /evidence="ECO:0000259|Pfam:PF01059" FT DOMAIN 103..390 FT /note="Proton_antipo_M" FT /evidence="ECO:0000259|Pfam:PF00361" SQ SEQUENCE 513 AA; 58227 MW; 991703CE987DB843 CRC64; MLKFILALMM LMIFIGEWNL IQVGLFILCF LLNIFSCHDF YMSNLGFGLG SDYLGYILIL LSAWIMSLVI SSSTKVMFNN IFPSSFLIVN ILLLVALFVT FSSMDYLMFY ISFEASLIPT LILILGWGYQ PERIQAGVYM LFYTLLASLP LLVSILYLYK INGSLSMGLN YNMLNVSSMN LIWFVCSMMA FVVKLPMYMF HLWLPKAHVE APVAGSMILA GVLLKLGGYG LIRILPLFSE LNKSINWVWI GLSILGGFIV SLICLRQVDM KSLIAYSSVA HMGLVLSGLV MFGWWGLNGA VVVMVGHGLC SSGMFCLANM VYERMGSRSL LINKGLMNFM PSMALWWFLL SVGNMAAPPT INLLGEINLI MSMVSWSKLT MVGICLLSFF SAAYTLYLYS LSQHGLFSSS LYSCCSGKVR EYLVLSLHWI PLNILILKSI LIMPNFYLNS LMKTLVCGTK NMNMVILNHH MKNINQLKQN IIFIISIFIF YNNIFILYFI WKMLYYWMGN FIY //