KEGG   ENZYME: 7.1.1.6
Entry
EC 7.1.1.6                  Enzyme                                 
Name
plastoquinol---plastocyanin reductase;
plastoquinol/plastocyanin oxidoreductase;
cytochrome f/b6 complex;
cytochrome b6f complex
Class
Translocases;
Catalysing the translocation of hydrons;
Linked to oxidoreductase reactions
Sysname
plastoquinol:oxidized-plastocyanin oxidoreductase
Reaction(IUBMB)
plastoquinol + 2 oxidized plastocyanin + 2 H+[side 1] = plastoquinone + 2 reduced plastocyanin + 4 H+[side 2] [RN:R03817]
Reaction(KEGG)
R03817;
(other) R08409
Substrate
plastoquinol [CPD:C16693];
oxidized plastocyanin [CPD:C03162];
H+[side 1]
Product
plastoquinone [CPD:C02061];
reduced plastocyanin [CPD:C03025];
H+[side 2]
Comment
Contains two b-type cytochromes, two c-type cytochromes (cn and f), and a [2Fe-2S] Rieske cluster. The enzyme plays a key role in photosynthesis, transferring electrons from photosystem II (EC 1.10.3.9) to photosystem I (EC 1.97.1.12). Cytochrome c-552 can act as acceptor instead of plastocyanin, but more slowly. In chloroplasts, protons are translocated through the thylakoid membrane from the stroma to the lumen. The mechanism occurs through the Q cycle as in EC 7.1.1.8, quinol---cytochrome-c reductase (complex III) and involves electron bifurcation.
History
EC 7.1.1.6 created 1984 as EC 1.10.99.1, transferred 2011 to EC 1.10.9.1, transferred 2018 to EC 7.1.1.6
Pathway
ec00195  Photosynthesis
ec01100  Metabolic pathways
Orthology
K02636  cytochrome b6-f complex iron-sulfur subunit
Genes
ATHAT4G03280(PETC)
ALY9310938
CRB17882819
CSAT104707757 104715172 104738479
EUSEUTSA_v10028941mg
BRP103846718 103858708
BNA106389955 106392303 106401343 106431526 106438729
BOE106315451 106328732
RSZ108823980 108844583
THJ104801189
CPAP110817023
CIT102606718
CICCICLE_v100167062m
PVY116141722 116144315
MINC123196593 123224144
TCC18608589
GRA105794917 105794918
GHI107886732 107886733 107909236 107909237
GAB108474570 108474627
DZI111282552 111298614 111308428
EGR104440214 104448387
GMX100127419(PETC) 100799420
GSJ114377041 114379626
PVUPHAVU_005G109400g
VRA106754175
VAR108332507
VUN114183273
CCAJ109806045
APRC113854039
MTRMTR_2g089510
CAM101497453
LJALj3g3v2742950.1(Lj3g3v2742950.1)
ADU107462083 107477915
AIP107614043 107629905
AHF112707058 112737603 112772680 112789729
LANG109338331 109343276 109347638
FVE101297120
RCN112183729
PPER18782385
PMUM103329498
PAVI110772253
PDUL117621606
MDM103404760 103442560
PXB103941967 103944475
ZJU107416955 107430257
MNT21405037
CSV101221828
CMO103495550
BHJ120078393 120083924
MCHA111008042
CMAX111468309 111486141
CMOS111437235 111455612
CPEP111793654 111811805
RCU8287590
HBR110656423
MESC110600408 110608049
POP7494443 7498162
PEU105141822 105142513
PALZ118028175 118029542
JRE109014063
QSU111995094
QLO115955685
TWL120000650
VVI100245219 100256300 100258879
VRI117909506 117927312
SLY101243864
SPEN107007225
SOT102577449(FES)
SSTN125863338
CANN107863280
NTA107765416(petC) 107805497(petC2)
NSY104226732
NTO104089639
NAU109226606
INI109184540
ITR116032770
SIND105162660 105178615
OEU111371939 111389733 111394769
EGT105972065
SSPL121742482 121756416 121759644
HAN110898900 110912849 110929744
ECAD122593279 122599029
LSV111895461 111901008
CCAV112500184 112507696
DCR108214328
CSIN114288646
BVG104903038
SOE110796530
CQI110693902 110711840
NNU104612240
MING122059215
TSS122647195
PSOM113287773 113305396
NCOL116264773 116265059 116266556
OSA4343570
DOSAOs07t0556200-01(Os07g0556200)
OBR102722030
BDI100821378
ATS109739965 109787183
TDC119354172 119363349
TAES123044564 123171554 123188289 543078
TUA125536644
SBI8058472
ZMA100273026 100273354
SITA101778821
SVS117861978
PVIR120655269 120696403
PHAI112886338
PDA103723659
EGU105049872
MUS103998870
DCT110107309
PEQ110039274
AOF109833255
ATR18426417
SMOSELMODRAFT_166088 SELMODRAFT_174399
CRECHLRE_11g467689v5
VCNVOLCADRAFT_109628(gon9)
MNGMNEG_2391
CSLCOCSUDRAFT_46361
CVRCHLNCDRAFT_57522
APROF751_5172
OLUOSTLU_40083(PETC)
OTAOT_ostta01g06610
BPGBathy15g02600
MISMICPUN_88922(PETC)
MPPMICPUCDRAFT_36185(PETC)
CMECYME_CMI281C CYME_CMO066C CYME_CMQ165C
GSLGasu_06700 Gasu_34460
CCPCHC_T00007954001
SMINv1.2.006093.t1(symbB.v1.2.006093.t1) v1.2.006094.t1(symbB.v1.2.006094.t1) v1.2.006095.t1(symbB.v1.2.006095.t1) v1.2.018676.t1(symbB.v1.2.018676.t1) v1.2.018676.t2(symbB.v1.2.018676.t2) v1.2.035696.t2(symbB.v1.2.035696.t2)
PTIPHATR_13358 PHATR_46657(petC)
FCYFRACYDRAFT_216240 FRACYDRAFT_268792
TPSTHAPSDRAFT_270229 THAPSDRAFT_38231(PETC2)
AAFAURANDRAFT_59217(petC) AURANDRAFT_8535
EHXEMIHUDRAFT_45249 EMIHUDRAFT_45312
GTTGUITHDRAFT_183242(PetC)
COLADBO93_18300
COVEKO29_20070
CYQQ91_1605
CZACYCME_0855(petA2)
CYYCPC19_04825
GSKKN400_1672(cbcV)
GMEGmet_0538(cbcO) Gmet_1922(cbcV) Gmet_2121(pcmE)
GPIGPICK_07355
GAOA2G06_08780
GEMGM21_2851 GM21_3173 GM21_4116
GEBGM18_0922 GM18_4480
GURGura_0457 Gura_2379
GEOGeob_0123(pcmE) Geob_1345(cbcO)
GLOGlov_1197
GBMGbem_1088(cbcV) Gbem_4025(cbcO)
GBNGEOBRER4_30140 GEOBRER4_30840 GEOBRER4_38940
GSBGSUB_03785
GERKP004_14930 KP004_19390
GSUBKP001_01760 KP001_16930
GNTKP003_19375
GPLM1B72_00365
DESDSOUD_1848 DSOUD_2442
DEUDBW_2723
DVEDESUT3_21540
DFLDFE_1758
DMSE8L03_07185
DDNDND132_0694
DSFUWK_02587
DPRDespr_2540
DOGHP555_00440
DOLDole_0192
DWDDSCW_54970
DALKDSCA_15120
DMMdnm_085970
ADEAdeh_2405 Adeh_3146
ACPA2cp1_1553 A2cp1_3337
AFWAnae109_0241 Anae109_0582
ANKAnaeK_1458 AnaeK_3259
MXAMXAN_6572
MSDMYSTI_07166
MYMA176_000310
MFBMFUL124B02_38020 MFUL124B02_42690
CCXCOCOR_07146
MMASMYMAC_006267
SURSTAUR_2170
AGEAA314_09243
CFUSCYFUS_009124
MRMA7982_01990 A7982_13040
DTIDesti_1379
DBRDeba_1755
DAVDESACE_01550
BSEDDN745_12270
PALGHFP57_13430
BMXBMS_0207
HAXBALOs_0221(petC)
BSTOC0V70_01105
BACIB1NLA3E_13370
AFXJZ786_05460
STHSTH3146
DSYDSY0257
DHDDhaf_0205
DDHDesde_0182
DDLDesdi_0163
DMTDESME_05810
DORDesor_3574
DAIDesaci_0892 Desaci_3268
AACXDEACI_0630 DEACI_0718
HMOHM1_0699(petC)
HCVFTV88_2631(petC)
TMRTmar_0323
THEFE1B22_05205
THEPDYI95_001430
CTHMCFE_0594
LPILLIP_1344 LIP_1511
MPAMAP_4218
MAOMAP4_4343
MAVIRC58_21575
MAVURE97_21625
MAVMAV_4414
ARMART_0260
ARLAFL94_10515
AREAL755_08920
ARWMB46_07855
ARYATC04_07710
AAIAARI_19890
GARAOZ07_10320
GCRGcLGCM259_1763
GLUF0M17_10065
GPRJQN66_10455
MLUMlut_12990
MICKB1A86_00006405
NAEBHE16_00725
AULDCC27_004360
PAEYKUF55_07005
BCVBcav_0242
BFABfae_09350
BGGCFK41_12245
BRZCFK38_14815
BSAUDWV08_01950
BRRC1N80_14215
DVADAD186_17450
DJJCOP05_02505
CFICelf_0256
CGACelgi_3086
CEZCBP52_13290
CELHGXP71_17660
APRECNX65_25905
AMIAmir_5207
SESPBN6_62810
SSYIEKG83_35765
KPHYAOZ06_36450
PSUFA1sIA56_01725
ABAIIMCC26256_112209
RXYRxyl_2712
AYMYM304_04030
ATQGH723_00995
AQZKSP35_11615 KSP35_17665
IAMHC251_21910
ERZER308_12700
EUZDVS28_a2472 DVS28_a4621
SYNsll1182(petC) sll1316(petC) slr1185(petC)
SYZMYO_110630(petC) MYO_117060(petC) MYO_131630(petC)
SYYSYNGTS_1054(petC) SYNGTS_1688(petC) SYNGTS_3127(petC)
SYTSYNGTI_1054(petC) SYNGTI_1688(petC) SYNGTI_3126(petC)
SYSSYNPCCN_1053(petC) SYNPCCN_1687(petC) SYNPCCN_3125(petC)
SYQSYNPCCP_1053(petC) SYNPCCP_1687(petC) SYNPCCP_3125(petC)
SYJD082_26430(petC1) D082_33580(petC3)
SYOC7I86_05470 C7I86_08775 C7I86_16420
SYCsyc0318_d(petC)
SYUM744_10480
SYFSynpcc7942_1232
SYDSyncc9605_0628
SYESyncc9902_1734
SYGsync_2149(petC)
SYRSynRCC307_0704(petC)
SYXSynWH7803_1850(petC)
SYPSYNPCC7002_A1097 SYNPCC7002_A1909(petC) SYNPCC7002_G0076(petC-II)
CYACYA_1153 CYA_1403(petC)
CYBCYB_1622(petC) CYB_2623
SYNESyn6312_0287
SYNPSyn7502_03444
SYNKKR100_04740
SYNRKR49_12220
SYNDKR52_13850
SYHSyncc8109_0687(petC)
SYNWSynWH8103_02096(petC)
SYVAWQ23_05645 AWQ23_09605 AWQ23_15035
SYLAWQ21_05665 AWQ21_09030 AWQ21_15570
SYNCCB0101_13205
SYNYBM449_00995 BM449_03130
DSLDacsa_0018 Dacsa_0527
SYWSYNW1841(petC)
CGCCyagr_3246
CYICBM981_1275(petC)
PMAPro_0460(petC)
PMMPMM0462(petC)
PMTPMT_1322
PMNPMN2A_1794
PMIPMT9312_0462
PMBA9601_05181(petC)
PMCP9515_05261(petC)
PMFP9303_06651(petC)
PMGP9301_04871(petC)
PMHP9215_05421(petC)
PMJP9211_04631(petC)
PMENATL1_05171(petC)
PRCEW14_0505
PRMEW15_0557
CMPCha6605_0174 Cha6605_0479 Cha6605_1594 Cha6605_1789 Cha6605_2993
AMRAM1_0450 AM1_1961 AM1_3682 AM1_4450(petC)
TVNNIES2134_109570(petC)
SLWBRW62_09270
TELtlr0959(petC)
THNNK55_11380(petC)
THECFFX45_01340
LEPLepto7376_0641 Lepto7376_2915 Lepto7376_3231 Lepto7376_3507
LENLEP3755_01230 LEP3755_20260
LETO77CONTIG1_03342(petC_1) O77CONTIG1_03479(petC_2)
LBOLBWT_24120 LBWT_55000
KOVK9N68_06120 K9N68_23960
LSCKIK02_04735 KIK02_09855
LSKJ5X98_03300 J5X98_04355 J5X98_16450
HHGXM38_024430(petC_1) XM38_031430(petC_2) XM38_043580(petC_3) XM38_045840(petC_4)
PSEUPse7367_2670 Pse7367_3073 Pse7367_3798
PSERABRG53_0591(petC) ABRG53_2912(petC)
THEUHPC62_05865 HPC62_06390
GLPGlo7428_4114 Glo7428_5108
GENGM3709_1268
GEEGM3708_762
CHONNIES4102_10180 NIES4102_28470 NIES4102_29320 NIES4102_37910 NIES4102_40570
MARMAE_19220(petC1) MAE_29060(petC2)
MPKVL20_5284
MIQB5D77_15340
MVZmyaer102_05070(petC2) myaer102_52410(petC1)
CANCyan10605_0985 Cyan10605_1627 Cyan10605_2697
CSNCyast_1951
CYLAA637_03160(petC)
HAOPCC7418_1322
ENNFRE64_06705 FRE64_13215 FRE64_13905
CYUUCYN_04610
CYTcce_2958(petC1) cce_3410(petC2)
CWACwatDRAFT_0991
CYPPCC8801_0755
CYHCyan8802_0781
CYCPCC7424_1693 PCC7424_3950 PCC7424_4636
CYJCyan7822_0236 Cyan7822_4646
CYNCyan7425_1419
TERTery_1799
ARPNIES39_L01870(petC)
PAGHNIES204_37360(petC)
PPSUNO713_00497(petC) NO713_01208(petC) NO713_02690(petC1) NO713_02986(petC2) NO713_05499(petC)
OXYHCG48_08870 HCG48_11380
MVAGD0A34_14340
LFSHFV01_07590
MICMic7113_3059 Mic7113_5239 Mic7113_6086
GEIGEI7407_0642 GEI7407_1514
OACOscil6304_4255 Oscil6304_4662 Oscil6304_5889
ONIOsc7112_1417 Osc7112_1984
MPROBJP34_17055 BJP34_32935
PHORJWS08_05995 JWS08_16710
PYHNEA10_16350
CEPCri9333_3513 Cri9333_3730
GVIglr3038(petC)
GLJGKIL_0313(petC) GKIL_0990
GMLISF26_03140(petC)
ANAall0606(petC) all1512(petC) all2453(petC) all4511(petC)
NPUNpun_F1529 Npun_R0132 Npun_R5257
NOSNos7107_0932 Nos7107_2253 Nos7107_3506
NOPNos7524_1114 Nos7524_2842 Nos7524_4344
NONNOS3756_02300(petC) NOS3756_09390
NFLCOO91_04989 COO91_05897
NOECLI64_07170 CLI64_23830 CLI64_24380
NSHGXM_01875 GXM_05608 GXM_06314 GXM_07204 GXM_09036
NEDHUN01_01500 HUN01_32430 HUN01_32515 HUN01_33555 HUN01_33665
AVAAva_0385 Ava_3377 Ava_4538
NAZAazo_1958 Aazo_2703
ANBANA_C10614(petC1) ANA_C13772(petC2)
ACYAnacy_0767 Anacy_1090 Anacy_1498
AWAAA650_13345 AA650_17855
ANNEH233_06050 EH233_06360 EH233_13980
CSGCylst_3623 Cylst_5913
RSINB6N60_00063 B6N60_04714
CALOCal7507_1842 Cal7507_2106
CALTCal6303_0510 Cal6303_1119 Cal6303_4398
CALHIJ00_07790 IJ00_13915 IJ00_18235 IJ00_20505 IJ00_22580
CALNNIES2098_45460 NIES2098_60400 NIES2098_60860(petC)
RIVRiv7116_0140 Riv7116_1107
FISFIS3754_14320 FIS3754_15310
NSPBMF81_02901(petC) BMF81_03752(petC_2)
NSPHBDGGKGIB_00458(petC_1) BDGGKGIB_00920(petC1) BDGGKGIB_01285(petC_2)
DOUBMF77_01134(petC1) BMF77_03986(petC)
DFSHGD76_12370 HGD76_17945 HGD76_19120
CCURIAR63_08595 IAR63_14245
CRKL3I90_13200 L3I90_16790
AFLOHEQ12_02430 HEQ12_06060
TOQHCG51_03935 HCG51_24675 HCG51_29755
NCNBZZ01_27715
CTHEChro_2037 Chro_5688
PLPPle7327_0459 Ple7327_1003 Ple7327_4542
SCSSta7437_1158 Sta7437_4686
STANSTA3757_02820 STA3757_10490(petC)
CEOETSB_0201(petC)
CERRGRSB_0150(petC)
DEHcbdbA328
DEBDehaBAV1_0363
DEGDehalGT_0325
DMCbtf_349
DMDdcmb_395
DMZX794_01335
DEWDGWBC_1243
HAUHaur_4253
CAPCLDAP_20100
PBFCFX0092_A2591
KBSEPA93_42500
TBHTbon_07110
THUGKNN16_11755
PMETG4Y79_01670 G4Y79_20685
DPUSU48_03290
DWUDVJ83_17005
DEINDAAJ005_00770 DAAJ005_11685
MRBMrub_2067
MREK649_12205
PNLPNK_0024
PUVPUV_26690(petC)
WCHwcw_1968
VBSEGM51_11250
PSLPsta_2937
AAGGETAA8_33280(petC_1) ETAA8_67850(petC_2)
TTFTHTE_1161 THTE_1512
LPAVPLANPX_4647 PLANPX_4754
PLSVT03_28950(petC_2)
FMRFuma_03692(petC_2)
TSPHKIH39_17465
KSTKSMBR1_1275(petC) KSMBR1_3797(qcrB_2)
BROCIPI25_04930 IPI25_10415
BPITBPIT_04780 BPIT_21240
JETL3J17_03320 L3J17_10600
PHMPSMK_p00320
HBSIPV69_07820 IPV69_25530
SUSAcid_3504 Acid_4388
PFERIRI77_15595
CTMCabther_A0914
CVLJ8C06_04755
CHLOJ8C02_04450
DRCG0Q07_09705 G0Q07_19415
MCOSGM418_00395 GM418_06255
MBASALGA_3081
RMRRmar_0051
RMGRhom172_0053
RBARAWN76_013865
CHITFW415_17790
COYHF329_06745
PGINFRZ67_11170
HHYHalhy_6501
PHEPhep_3298
PEPAQ505_12515 AQ505_16965
PSTYBFS30_20280
PGSCPT03_04785
PEJFYC62_12435
PROEH9L23_09295
STHANCTC11429_04404(petC)
SCNSolca_2003
MUPA0256_02455 A0256_09660
MUCMuYL_0084
MGINFRZ54_12180
MMABHQ865_09255
SBXCA265_18005
EVIEchvi_4121
ALMAO498_10875
SLISlin_1751 Slin_4885
SRDSD10_00730 SD10_11200
SMONAWR27_07175 AWR27_23020
SPIRCWM47_14115 CWM47_26590
SPIKEXU85_17900 EXU85_32395
SPIBG8759_15980
STAEHNV11_13930
SRHOHH216_06740 HH216_20085
PSEZHME7025_00750(petC)
DFEDfer_4136
DSNHWI92_17265
RSIRunsl_1013 Runsl_5181
RUNDR864_14110 DR864_27970
RUPDTQ70_12140 DTQ70_21720
EOLEmtol_0682 Emtol_4004
FAEFAES_0660 FAES_1260
FIBA6C57_19845
ALSDJ013_12055
HYMN008_17360
HYPA0257_11780
HYZAXW84_08280
HNVDDQ68_02660 DDQ68_05040
HRSHER32_13270
PACTCA264_10090
GFLGRFL_1854
GRSC7S20_00920
FCOFCOL_02100
FGLEM308_07790
FCMBIW12_10845
FNKE1750_07145
ZPRZPR_4052
SYISB49_06445
SALTAO058_00270 AO058_06315
AALGAREALGSMS7_02419(petC1)
AFLAFHG64_11950
CHRSEAG08_01405
CHRZCO230_10670
CGLENCTC11432_01271(petC1)
EVAEIB75_06625
APIBG8C43_00700
CTECT0302(petC)
CPCCpar_1735
CLZBIU88_01410
CCHCag_0394
CPHCpha266_0429
CPBCphamn1_1987
CLIClim_0361
PVICvib_1501
PLTPlut_1719
PPHPpha_0466
PAAPaes_1780
PROCPtc2401_01878(petC_2)
PRSB9H02_08940
PROSCHL67_02460
CTSCtha_0474
IALIALB_1667
MROMROS_1771
DINSelin_2602
DDFDEFDS_0674
DAPDacet_1796
GTLEP073_11335
CABYCabys_1258
NJANSJP_2410
LFCLFE_0697
LFILFML04_1934
LFPY981_09845
LEGABH19_10215
TIDThein_0668
TCMHL41_05820
THETF1847_01080
CTHITHC_0521
TAVG4V39_05185
TMAIFVE67_05515
NLIG3M70_16785
MOXDAMO_0767 DAMO_0820 DAMO_1672(petC)
PYRP186_0763
TUZTUZN_1070
 » show all
Reference
1  [PMID:6269845]
  Authors
Hurt E, Hauska G.
  Title
A cytochrome f/b6 complex of five polypeptides with plastoquinol-plastocyanin-oxidoreductase activity from spinach chloroplasts.
  Journal
Eur J Biochem 117:591-5 (1981)
DOI:10.1111/j.1432-1033.1981.tb06379.x
Reference
2  [PMID:16787635]
  Authors
Cramer WA, Zhang H
  Title
Consequences of the structure of the cytochrome b6f complex for its charge transfer pathways.
  Journal
Biochim Biophys Acta 1757:339-45 (2006)
DOI:10.1016/j.bbabio.2006.04.020
Other DBs
ExplorEnz - The Enzyme Database: 7.1.1.6
IUBMB Enzyme Nomenclature: 7.1.1.6
ExPASy - ENZYME nomenclature database: 7.1.1.6
BRENDA, the Enzyme Database: 7.1.1.6
CAS: 79079-13-3

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