Entry
Name
chlorophyll(ide) b reductase;
chlorophyll b reductase;
Chl b reductase
Class
Oxidoreductases;
Acting on the CH-OH group of donors;
With NAD+ or NADP+ as acceptor
BRITE hierarchy
Sysname
71-hydroxychlorophyllide-a:NAD(P)+ oxidoreductase
Reaction(IUBMB)
71-hydroxychlorophyllide a + NAD(P)+ = chlorophyllide b + NAD(P)H + H+ [RN:
R08914 R08915 ]
Reaction(KEGG)
Substrate
71-hydroxychlorophyllide a;
NAD+ [CPD:
C00003 ];
NADP+ [CPD:
C00006 ]
Product
Comment
This enzyme carries out the first step in the conversion of chlorophyll b to chlorophyll a. It is involved in chlorophyll degradation, which occurs during leaf senescence [3] and it also forms part of the chlorophyll cycle, which interconverts chlorophyll a and b in response to changing light conditions [4,5].
History
EC 1.1.1.294 created 2007
Pathway
ec01110 Biosynthesis of secondary metabolites
Orthology
K13606 chlorophyll(ide) b reductase
Genes
ATH : AT4G13250(NYC1) AT5G04900(NOL)
CRB : 17879926 17884253 17886399
CSAT : 104708623 104719138 104723940 104732461 104734497 104768686
EUS : EUTSA_v10013856mg EUTSA_v10024970mg
BRP : 103833353 103855594 103863639
BNA : 106358543 106368659 106382994 106415430 106423622 106445844
BOE : 106307162 106332965 106341846
RSZ : 108818851 108846743 108854465
CIC : CICLE_v10008039mg CICLE_v10016279mg
MINC : 123192303 123194898
GHI : 107896251 107907214 107915739 107958763
HSYR : 120123241 120129006 120140899 120153831 120156655 120182141 120201921 120218841
DZI : 111285578 111303209 111310430
GMX : 100784978(NYC1_1) 100797007(NYC1_2) 100797874
GSJ : 114368871 114386473 114418559
PVU : PHAVU_004G163900g PHAVU_011G185400g
CCAJ : 109800952 109811723
APRC : 113864943 113866960
TPRA : 123882925 123894492
PSAT : 127075555 127116640
VVO : 131616797 131627193 131636666 131636674 131637303
AHF : 112707553 112751202 112771873 112802145
LANG : 109351362 109352039
PCIN : 129292100 129293939 129313952
QSA : O6P43_004030 O6P43_007924 O6P43_029795
PMUM : 103330957 103340963
PAVI : 110769610 110770936
PDUL : 117618713 117633626
MDM : 103400502 103418531 103448940
MSYL : 126582610 126594366 126605308
PXB : 103946113(NOL) 103960702 103962968
CSAV : 115705519 115705686 115705760
MCHA : 111006573 111014576
CMAX : 111465318 111485144 111488939
CMOS : 111441038 111445527 111461436
CPEP : 111779919 111792293 111808580
MEAN : 126655916 126668938
MESC : 110602939 110612182 110625173
PALZ : 118045029 118051666
JRE : 108979368 109008026 109018516
CILL : 122292453 122305012 122308282
CAVE : 132165183 132166670 132180891
SPEN : 107020324 107026113
SSTN : 125842313 125876425
SDUL : 129889079 129893457
CANN : 107838960 107877925
NTA : 107761536 107762138 107819263 107825949
SIND : 105172289 105173519
OEU : 111399962 111401522 111407954
EGT : 105949896 105951704 105972473
SSPL : 121745561 121780006 121782147 121810378
SMIL : 131003020 131014402
SHIS : 125186531 125216718
APAN : 127244838 127252136
HAN : 110865589 110886883 110918628
ECAD : 122595369 122596131
LSV : 111914654 111918546 111918613
CCAV : 112517125 112522648
DCR : 108209309 108211652 108214174
CSIN : 114260333 114271278 114320958
AEW : 130757614 130782894 130789029
CQI : 110683253 110691026 110707787 110724584
ATRI : 130816150 130817285
NNU : 104592199 104595194 104604139
MING : 122077412 122085605
PSOM : 113298872 113303841 113308544 113318566
OSA : 4327178(NYC1) 4333604(NOL)
TDC : 119267657 119275530 119286847 119287150 119324373
TAES : 123069340 123077855 123087057 123087369 123095605 123138406
TUA : 125530912 125550194 125550459
LPER : 127293615 127341978
LRD : 124667037 124700087 124703900
MFLO : 136449369 136452279 136461501 136522056 136534438 136538545
SITA : 101774070 101776903
PVIR : 120650211 120673475 120691558 120705518
PHAI : 112877491 112895443
PDA : 103697059 103710898 120104100
MUS : 103969283 103970933 103991357
ZOF : 121986397 122027562 122029607 122038574
MSIN : 131249207 131256754
NCOL : 116247689 116256716
SMO : SELMODRAFT_128787 SELMODRAFT_405906
CRE : CHLRE_12g517700v5 CHLRE_14g608800v5
VCN : VOLCADRAFT_103703 VOLCADRAFT_67034
CSL : COCSUDRAFT_17245 COCSUDRAFT_3542
CVR : CHLNCDRAFT_33893 CHLNCDRAFT_57711
APRO : F751_3071 F751_6089
EHX : EMIHUDRAFT_445538 EMIHUDRAFT_445986
» show all
Taxonomy
Reference
Authors
Scheumann V, Ito H, Tanaka A, Schoch S, Rudiger W.
Title
Substrate specificity of chlorophyll(ide) b reductase in etioplasts of barley (Hordeum vulgare L.).
Journal
Reference
Authors
Scheumann V, Schoch S, Rudiger W.
Title
Chlorophyll a formation in the chlorophyll b reductase reaction requires reduced ferredoxin.
Journal
Reference
Authors
Hortensteiner S.
Title
Chlorophyll degradation during senescence.
Journal
Reference
Authors
Ito H, Ohtsuka T, Tanaka A.
Title
Conversion of chlorophyll b to chlorophyll a via 7-hydroxymethyl chlorophyll.
Journal
Reference
Authors
Rudiger W.
Title
Biosynthesis of chlorophyll b and the chlorophyll cycle.
Journal
Other DBs
ExPASy - ENZYME nomenclature database: 1.1.1.294
LinkDB
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