ID PETD_MAIZE Reviewed; 160 AA.
AC P05643; Q33299;
DT 01-NOV-1988, integrated into UniProtKB/Swiss-Prot.
DT 01-NOV-1995, sequence version 2.
DT 27-MAR-2024, entry version 146.
DE RecName: Full=Cytochrome b6-f complex subunit 4 {ECO:0000255|HAMAP-Rule:MF_01344};
DE AltName: Full=17 kDa polypeptide {ECO:0000255|HAMAP-Rule:MF_01344};
GN Name=petD {ECO:0000255|HAMAP-Rule:MF_01344};
OS Zea mays (Maize).
OG Plastid; Chloroplast.
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; Liliopsida; Poales; Poaceae; PACMAD clade;
OC Panicoideae; Andropogonodae; Andropogoneae; Tripsacinae; Zea.
OX NCBI_TaxID=4577;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND ABSENCE OF RNA EDITING.
RC TISSUE=Seedling;
RX PubMed=8252066; DOI=10.1046/j.1365-313x.1993.04040621.x;
RA Freyer R., Hoch B., Neckermann K., Maier R.M., Koessel H.;
RT "RNA editing in maize chloroplasts is a processing step independent of
RT splicing and cleavage to monocistronic mRNAs.";
RL Plant J. 4:621-629(1993).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA], AND ABSENCE OF RNA EDITING.
RC STRAIN=cv. B73;
RX PubMed=7666415; DOI=10.1006/jmbi.1995.0460;
RA Maier R.M., Neckermann K., Igloi G.L., Koessel H.;
RT "Complete sequence of the maize chloroplast genome: gene content, hotspots
RT of divergence and fine tuning of genetic information by transcript
RT editing.";
RL J. Mol. Biol. 251:614-628(1995).
RN [3]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 1-67 (ISOFORMS LONG AND SHORT).
RX PubMed=2835175; DOI=10.1007/bf00420729;
RA Rock C.D., Barkan A., Taylor W.C.;
RT "The maize plastid psbB-psbF-petB-petD gene cluster: spliced and unspliced
RT petB and petD RNAs encode alternative products.";
RL Curr. Genet. 12:69-77(1987).
CC -!- FUNCTION: Component of the cytochrome b6-f complex, which mediates
CC electron transfer between photosystem II (PSII) and photosystem I
CC (PSI), cyclic electron flow around PSI, and state transitions.
CC {ECO:0000255|HAMAP-Rule:MF_01344}.
CC -!- SUBUNIT: The 4 large subunits of the cytochrome b6-f complex are
CC cytochrome b6, subunit IV (17 kDa polypeptide, petD), cytochrome f and
CC the Rieske protein, while the 4 small subunits are petG, petL, petM and
CC petN. The complex functions as a dimer (By similarity). {ECO:0000250}.
CC -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC {ECO:0000255|HAMAP-Rule:MF_01344}; Multi-pass membrane protein
CC {ECO:0000255|HAMAP-Rule:MF_01344}.
CC -!- ALTERNATIVE PRODUCTS:
CC Event=Alternative splicing; Named isoforms=2;
CC Name=Short;
CC IsoId=P05643-1; Sequence=Displayed;
CC Name=Long;
CC IsoId=P05643-2; Sequence=VSP_019383;
CC -!- MISCELLANEOUS: A longer mRNA that is not produced by splicing has been
CC shown to be transcribed in barley and maize. It is not known if this
CC mRNA is translated.
CC -!- SIMILARITY: Belongs to the cytochrome b family. PetD subfamily.
CC {ECO:0000255|HAMAP-Rule:MF_01344}.
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DR EMBL; S67284; AAB29195.2; -; Genomic_DNA.
DR EMBL; S67283; AAB29195.2; JOINED; Genomic_DNA.
DR EMBL; X86563; CAA60316.1; -; Genomic_DNA.
DR EMBL; X05422; CAA29001.1; -; Genomic_DNA.
DR EMBL; X05422; CAA29002.1; ALT_SEQ; Genomic_DNA.
DR PIR; S58582; S58582.
DR RefSeq; NP_043054.1; NC_001666.2. [P05643-1]
DR AlphaFoldDB; P05643; -.
DR SMR; P05643; -.
DR STRING; 4577.P05643; -.
DR PaxDb; 4577-GRMZM2G427557_P01; -.
DR GeneID; 845193; -.
DR KEGG; zma:845193; -.
DR MaizeGDB; 56341; -.
DR eggNOG; KOG4663; Eukaryota.
DR HOGENOM; CLU_112652_0_0_1; -.
DR InParanoid; P05643; -.
DR OMA; GWIHKNS; -.
DR OrthoDB; 9at2759; -.
DR Proteomes; UP000007305; Chloroplast.
DR Genevisible; P05643; ZM.
DR GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0005750; C:mitochondrial respiratory chain complex III; IBA:GO_Central.
DR GO; GO:0045158; F:electron transporter, transferring electrons within cytochrome b6/f complex of photosystem II activity; IEA:UniProtKB-UniRule.
DR GO; GO:0045156; F:electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity; IEA:InterPro.
DR GO; GO:0006122; P:mitochondrial electron transport, ubiquinol to cytochrome c; IBA:GO_Central.
DR GO; GO:0009767; P:photosynthetic electron transport chain; IEA:InterPro.
DR GO; GO:1902600; P:proton transmembrane transport; IEA:GOC.
DR CDD; cd00290; cytochrome_b_C; 1.
DR Gene3D; 1.10.287.980; plastocyanin oxidoreductase; 1.
DR Gene3D; 1.20.5.510; Single helix bin; 1.
DR HAMAP; MF_01344; Cytb6_f_subIV; 1.
DR InterPro; IPR005798; Cyt_b/b6_C.
DR InterPro; IPR036150; Cyt_b/b6_C_sf.
DR InterPro; IPR005870; Cyt_b6/f_cplx_suIV.
DR InterPro; IPR048260; Cytochrome_b_C_euk/bac.
DR NCBIfam; TIGR01156; cytb6_f_IV; 1.
DR PANTHER; PTHR19271; CYTOCHROME B; 1.
DR PANTHER; PTHR19271:SF16; CYTOCHROME B; 1.
DR Pfam; PF00032; Cytochrom_B_C; 1.
DR PIRSF; PIRSF000033; B6f_17K; 1.
DR SUPFAM; SSF81648; a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase); 1.
DR PROSITE; PS51003; CYTB_CTER; 1.
PE 2: Evidence at transcript level;
KW Alternative splicing; Chloroplast; Electron transport; Membrane;
KW Photosynthesis; Plastid; Reference proteome; Thylakoid; Transmembrane;
KW Transmembrane helix; Transport.
FT CHAIN 1..160
FT /note="Cytochrome b6-f complex subunit 4"
FT /id="PRO_0000061867"
FT TRANSMEM 36..56
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01344"
FT TRANSMEM 95..115
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01344"
FT TRANSMEM 131..151
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01344"
FT VAR_SEQ 1..3
FT /note="MGV -> MSGSFGGWILKNSPIPI (in isoform Long)"
FT /evidence="ECO:0000305"
FT /id="VSP_019383"
SQ SEQUENCE 160 AA; 17489 MW; F8B6325B4D5B3E00 CRC64;
MGVTKKPDLN DPVLRAKLAK GMGHNYYGEP AWPNDLLYIF PVVILGTIAC NVGLAVLEPS
MIGEPADPFA TPLEILPEWY FFPVFQILRT VPNKLLGVLL MVSVPTGLLT VPFLENVNKF
QNPFRRPVAT TVFLIGTAVA LWLGIGATLP IDKSLTLGLF
//
