Accessory subunit of the mitochondrial membrane respiratory chain NADH dehydrogenase (Complex I), that is believed not to be involved in 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. Caenorhabditis elegans (taxid: 6239)
Score = 58.9 bits (141), Expect = 1e-08, Method: Compositional matrix adjust.
Identities = 29/68 (42%), Positives = 39/68 (57%)
Query: 13 ESLFTISGSLVPAEWYGWLHYKTDYLPHEDPGRPKYKWMAEHTENFSGSNKQYVPYSSTR 72
+ + + GS+VP EW+ WLH TD P P + H N SG+ +QYVPYS+TR
Sbjct: 72 NTFWDVDGSMVPPEWHRWLHCMTDDPPTVKPPTARKFIWTNHKFNLSGTPQQYVPYSTTR 131
Query: 73 TKIEAWKP 80
KI+ W P
Sbjct: 132 KKIQEWVP 139
Accessory subunit of the mitochondrial membrane respiratory chain NADH dehydrogenase (Complex I), that is believed not to be involved in 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.
Score = 57.0 bits (136), Expect = 3e-08, Method: Compositional matrix adjust.
Identities = 28/68 (41%), Positives = 39/68 (57%)
Query: 13 ESLFTISGSLVPAEWYGWLHYKTDYLPHEDPGRPKYKWMAEHTENFSGSNKQYVPYSSTR 72
+ + + GS+VP EW+ WLH TD P P + H N +G+ +QYVPYS+TR
Sbjct: 72 NTFWDVDGSMVPPEWHRWLHSMTDDPPTTKPLTARKFIWTNHKFNMTGTPEQYVPYSTTR 131
Query: 73 TKIEAWKP 80
KI+ W P
Sbjct: 132 KKIQEWIP 139
Accessory subunit of the mitochondrial membrane respiratory chain NADH dehydrogenase (Complex I), that is believed not to be involved in 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.
Score = 57.0 bits (136), Expect = 3e-08, Method: Compositional matrix adjust.
Identities = 28/68 (41%), Positives = 39/68 (57%)
Query: 13 ESLFTISGSLVPAEWYGWLHYKTDYLPHEDPGRPKYKWMAEHTENFSGSNKQYVPYSSTR 72
+ + + GS+VP EW+ WLH TD P P + H N +G+ +QYVPYS+TR
Sbjct: 72 NTFWDVDGSMVPPEWHRWLHSMTDDPPTTKPLTARKFIWTNHKFNVTGTPEQYVPYSTTR 131
Query: 73 TKIEAWKP 80
KI+ W P
Sbjct: 132 KKIQEWIP 139
Accessory subunit of the mitochondrial membrane respiratory chain NADH dehydrogenase (Complex I), that is believed not to be involved in 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.
Score = 57.0 bits (136), Expect = 3e-08, Method: Compositional matrix adjust.
Identities = 28/68 (41%), Positives = 39/68 (57%)
Query: 13 ESLFTISGSLVPAEWYGWLHYKTDYLPHEDPGRPKYKWMAEHTENFSGSNKQYVPYSSTR 72
+ + + GS+VP EW+ WLH TD P P + H N +G+ +QYVPYS+TR
Sbjct: 72 NTFWDVDGSMVPPEWHRWLHSMTDDPPTTKPLTARKFIWTNHKFNVTGTPEQYVPYSTTR 131
Query: 73 TKIEAWKP 80
KI+ W P
Sbjct: 132 KKIQEWIP 139
Accessory subunit of the mitochondrial membrane respiratory chain NADH dehydrogenase (Complex I), that is believed not to be involved in 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.
Score = 56.6 bits (135), Expect = 5e-08, Method: Compositional matrix adjust.
Identities = 28/68 (41%), Positives = 39/68 (57%)
Query: 13 ESLFTISGSLVPAEWYGWLHYKTDYLPHEDPGRPKYKWMAEHTENFSGSNKQYVPYSSTR 72
+ + + GS+VP EW+ WLH TD P P + H N +G+ +QYVPYS+TR
Sbjct: 72 NTFWDVDGSMVPPEWHHWLHSITDDPPTTKPLTARKFIWTNHKFNVTGTPEQYVPYSTTR 131
Query: 73 TKIEAWKP 80
KI+ W P
Sbjct: 132 KKIQEWIP 139
Accessory subunit of the mitochondrial membrane respiratory chain NADH dehydrogenase (Complex I), that is believed not to be involved in 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.
Score = 56.2 bits (134), Expect = 5e-08, Method: Compositional matrix adjust.
Identities = 28/68 (41%), Positives = 38/68 (55%)
Query: 13 ESLFTISGSLVPAEWYGWLHYKTDYLPHEDPGRPKYKWMAEHTENFSGSNKQYVPYSSTR 72
+ + + GS+VP EW+ WLH TD P +P + H N S + +QYVPYS+TR
Sbjct: 72 NTFWDVDGSMVPPEWHRWLHCMTDDPPTTNPPTARKFIWTNHKFNVSATPEQYVPYSTTR 131
Query: 73 TKIEAWKP 80
KI W P
Sbjct: 132 KKIHEWVP 139
Accessory subunit of the mitochondrial membrane respiratory chain NADH dehydrogenase (Complex I), that is believed not to be involved in 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.
Accessory subunit of the mitochondrial membrane respiratory chain NADH dehydrogenase (Complex I), that is believed not to be involved in 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.
Arabidopsis thaliana (taxid: 3702)
Close Homologs in the Non-Redundant Database Detected by BLAST
>gi|91085133|ref|XP_969714.1| PREDICTED: similar to AGAP008653-PA [Tribolium castaneum] gi|270009297|gb|EFA05745.1| hypothetical protein TcasGA2_TC015691 [Tribolium castaneum]
Score = 68.1 bits (167), Expect = 8e-17
Identities = 26/67 (38%), Positives = 31/67 (46%), Gaps = 7/67 (10%)
Query: 20 GSLVPAEWYGWLHYKTDYLPHEDPGRPKYKWMAEHTENFSGSNKQYVPYSS------TRT 73
S VP EW+GWLH+ TD P E+P W H N +G+ Y PY S
Sbjct: 35 ASRVPPEWHGWLHHTTDEPPTEEP-LKPRAWEKPHQPNLTGTPGAYRPYGSLLRRPRATG 93
Query: 74 KIEAWKP 80
EAW P
Sbjct: 94 DYEAWTP 100
This family contains the 17.2 kD subunit of complex I (NDUFA12) and its homologues. The family also contains a second related eukaryotic protein of unknown function, . Length = 100
6.5.3 from EC) is a respiratory-chain enzyme that catalyses the transfer of two electrons from NADH to ubiquinone in a reaction that is associated with proton translocation across the membrane (NADH + ubiquinone = NAD+ + ubiquinol) []. Complex I is a major source of reactive oxygen species (ROS) that are predominantly formed by electron transfer from FMNH(2). Complex I is found in bacteria, cyanobacteria (as a NADH-plastoquinone oxidoreductase), archaea [], mitochondira, and in the hydrogenosome, a mitochondria-derived organelle. In general, the bacterial complex consists of 14 different subunits, while the mitochondrial complex contains homologues to these subunits in addition to approximately 31 additional proteins []. Mitochondrial complex I, which is located in the inner mitochondrial membrane, is the largest multimeric respiratory enzyme in the mitochondria, consisting of more than 40 subunits, one FMN co-factor and eight FeS clusters []. The assembly of mitochondrial complex I is an intricate process that requires the cooperation of the nuclear and mitochondrial genomes [, ]. Mitochondrial complex I can cycle between active and deactive forms that can be distinguished by the reactivity towards divalent cations and thiol-reactive agents. All redox prosthetic groups reside in the peripheral arm of the L-shaped structure. The NADH oxidation domain harbouring the FMN cofactor is connected via a chain of iron-sulphur clusters to the ubiquinone reduction site that is located in a large pocket formed by the PSST and 49kDa subunits of complex I []. this entry represents the 17.2kDa subunit from NADH:ubiquinone oxidoreductase and its homologues []. This subunit is believed to be one of the 36 structural complex I proteins.; GO: 0008137 NADH dehydrogenase (ubiquinone) activity, 0009055 electron carrier activity, 0016020 membrane
