P0CD51 · NU2C2_SORBI
- ProteinNAD(P)H-quinone oxidoreductase subunit 2 B, chloroplastic
- GenendhB2
- StatusUniProtKB reviewed (Swiss-Prot)
- Amino acids510 (go to sequence)
- Protein existenceInferred from homology
- Annotation score3/5
Function
function
NDH shuttles electrons from NAD(P)H:plastoquinone, via FMN and iron-sulfur (Fe-S) centers, to quinones in the photosynthetic chain and possibly in a chloroplast respiratory chain. The immediate electron acceptor for the enzyme in this species is believed to be plastoquinone. Couples the redox reaction to proton translocation, and thus conserves the redox energy in a proton gradient.
Catalytic activity
- a plastoquinone + NADH + (n+1) H+(in) = a plastoquinol + NAD+ + n H+(out)
a plastoquinone RHEA-COMP:9562 + CHEBI:57945 + (n+1) H+ (in)CHEBI:15378= a plastoquinol RHEA-COMP:9561 + CHEBI:57540 + n H+ (out)CHEBI:15378 - a plastoquinone + NADPH + (n+1) H+(in) = a plastoquinol + NADP+ + n H+(out)
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | chloroplast thylakoid membrane | |
Molecular Function | NADH dehydrogenase (ubiquinone) activity | |
Molecular Function | quinone binding | |
Biological Process | ATP synthesis coupled electron transport | |
Biological Process | photosynthesis, light reaction |
Keywords
- Molecular function
- Biological process
- Ligand
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended nameNAD(P)H-quinone oxidoreductase subunit 2 B, chloroplastic
- EC number
- Alternative names
Gene names
Encoded on
- Chloroplast
Organism names
- Strain
- Taxonomic lineageEukaryota > Viridiplantae > Streptophyta > Embryophyta > Tracheophyta > Spermatophyta > Magnoliopsida > Liliopsida > Poales > Poaceae > PACMAD clade > Panicoideae > Andropogonodae > Andropogoneae > Sorghinae > Sorghum
Accessions
- Primary accessionP0CD51
- Secondary accessions
Proteomes
Genome annotation databases
Subcellular Location
UniProt Annotation
GO Annotation
Plastid, chloroplast thylakoid membrane ; Multi-pass membrane protein
Features
Showing features for transmembrane.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Transmembrane | 31-51 | Helical | ||||
Sequence: FIFPECILIFGLILLLMIDLT | ||||||
Transmembrane | 59-79 | Helical | ||||
Sequence: WFYFISSTSLVISITALLFRW | ||||||
Transmembrane | 99-119 | Helical | ||||
Sequence: IFQFLILLCSTLCIPLSVEYI | ||||||
Transmembrane | 124-144 | Helical | ||||
Sequence: MAITEFLLFVLTATLGGMFLC | ||||||
Transmembrane | 149-169 | Helical | ||||
Sequence: LITIFVAPECFSLCSYLLSGY | ||||||
Transmembrane | 183-203 | Helical | ||||
Sequence: YLLMGGASSSILVHGFSWLYG | ||||||
Transmembrane | 229-249 | Helical | ||||
Sequence: ISIALIFITVGLGFKLSPAPF | ||||||
Transmembrane | 295-315 | Helical | ||||
Sequence: WHLLLEILAILSMILGNLLAI | ||||||
Transmembrane | 323-343 | Helical | ||||
Sequence: MLAYSSIGQIGYVIIGIIVGD | ||||||
Transmembrane | 354-374 | Helical | ||||
Sequence: YMLFYISMNLGTFACIVLFGL | ||||||
Transmembrane | 395-415 | Helical | ||||
Sequence: ALSLALCLLSLGGLPPLAGFF | ||||||
Transmembrane | 418-438 | Helical | ||||
Sequence: LYLFWCGWQAGLYFLVSIGLL |
Keywords
- Cellular component
PTM/Processing
Features
Showing features for chain.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Chain | PRO_0000391313 | 1-510 | NAD(P)H-quinone oxidoreductase subunit 2 B, chloroplastic | |||
Sequence: MIWHVQNENFILDSTRIFMKAFHLLLFNGSFIFPECILIFGLILLLMIDLTSDQKDRPWFYFISSTSLVISITALLFRWREEPIISFSGNFQTNNFNEIFQFLILLCSTLCIPLSVEYIECTEMAITEFLLFVLTATLGGMFLCGANDLITIFVAPECFSLCSYLLSGYTKRDLRSNEATMKYLLMGGASSSILVHGFSWLYGSSGGEIELQEIVNGLINTQMYNSPGISIALIFITVGLGFKLSPAPFHQWTPDVYEGSPTPVVAFLSVTSKVAASALATRILDIPFYFSSNEWHLLLEILAILSMILGNLLAITQTSMKRMLAYSSIGQIGYVIIGIIVGDSNDGYASMITYMLFYISMNLGTFACIVLFGLRTGTDNIRDYAGLYTKDPFLALSLALCLLSLGGLPPLAGFFGKLYLFWCGWQAGLYFLVSIGLLTSVLSIYYYLKIIKLLMTGRNQEITPYVRNYRRSPLRSNNSIELSMTVCVIASTIPGISMNPILAIAQDTLF |
Keywords
- PTM
Expression
Gene expression databases
Interaction
Subunit
NDH is composed of at least 16 different subunits, 5 of which are encoded in the nucleus.
Protein-protein interaction databases
Structure
Family & Domains
Sequence similarities
Belongs to the complex I subunit 2 family.
Keywords
- Domain
Phylogenomic databases
Family and domain databases
Sequence
- Sequence statusComplete
- Length510
- Mass (Da)56,855
- Last updated2010-02-09 v1
- Checksum54FE82A5A461167E
Keywords
- Technical term
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
EF115542 EMBL· GenBank· DDBJ | ABK79556.1 EMBL· GenBank· DDBJ | Genomic DNA |