KEGG   ORTHOLOGY: K22013
Entry
K22013                      KO                                     
Symbol
SGR, SGRL
Name
magnesium dechelatase [EC:4.99.1.10]
Pathway
map00860  Porphyrin metabolism
map01110  Biosynthesis of secondary metabolites
Brite
KEGG Orthology (KO) [BR:ko00001]
 09100 Metabolism
  09108 Metabolism of cofactors and vitamins
   00860 Porphyrin metabolism
    K22013  SGR, SGRL; magnesium dechelatase
Enzymes [BR:ko01000]
 4. Lyases
  4.99  Other lyases
   4.99.1  Sole sub-subclass for lyases that do not belong in the other subclasses
    4.99.1.10  magnesium dechelatase
     K22013  SGR, SGRL; magnesium dechelatase
Other DBs
RN: R08584 R09033
Genes
ATH: AT1G44000 AT4G11910 AT4G11911 AT4G22920(NYE1)
ALY: 110227542 9303816 9310800 9330036
CRB: 17880941 17882664 17898091
CSAT: 104707485 104707486 104718013 104718062 104718066 104722741 104731201 104737198 104737199 104742156 104757939 104777551
EUS: EUTSA_v10011724mg EUTSA_v10025991mg EUTSA_v10028881mg EUTSA_v10029210mg
BRP: 103834271 103847714 103858612 103860469(NYE1) 103861346
BNA: 106368456 106368457 106375753 106375754 106379154 106388569 106405908 106411225 106411238 106416069 106438786 106440469 106440765 111197916
BOE: 106296745 106306852 106311628 106325928 106332354 106332703
RSZ: 108810996 108820491 108820492 108820494 108843007 108844784 108846175 108849663 108849678
THJ: 104801615 104813011 104814157
LJA: Lj1g3v0900940.1(Lj1g3v0900940.1) Lj2g3v2003030.1(Lj2g3v2003030.1) Lj4g3v1287250.1(Lj4g3v1287250.1) Lj4g3v1327600.1(Lj4g3v1327600.1)
OSA: 4347672
DOSA: Os04t0692600-01(Os04g0692600) Os09t0532000-01(Os09g0532000)
OBR: 102711183
AOF: 109821600
APRO: F751_5480
 » show all
Reference
  Authors
Shimoda Y, Ito H, Tanaka A
  Title
Arabidopsis STAY-GREEN, Mendel's Green Cotyledon Gene, Encodes Magnesium-Dechelatase.
  Journal
Plant Cell tpc.00428.2016 (2016)
DOI:10.1105/tpc.16.00428
  Sequence
LinkDB

KEGG   ENZYME: 4.99.1.10
Entry
EC 4.99.1.10                Enzyme                                 
Name
magnesium dechelatase;
SGR (gene name);
SGRL (gene name);
Mg-dechelatase
Class
Lyases;
Other lyases;
Sole sub-subclass for lyases that do not belong in the other subclasses
Sysname
chlorophyll a magnesium lyase
Reaction(IUBMB)
(1) chlorophyll a + 2 H+ = pheophytin a + Mg2+ [RN:R08584];
(2) chlorophyllide a + 2 H+ = pheophorbide a + Mg2+ [RN:R09033]
Reaction(KEGG)
R08584 R09033
Substrate
chlorophyll a [CPD:C05306];
H+ [CPD:C00080];
chlorophyllide a [CPD:C02139]
Product
pheophytin a [CPD:C05797];
Mg2+ [CPD:C00305];
pheophorbide a [CPD:C18021]
Comment
Inhibited by Ca2+, Mg2+ and especially Hg2+. SGR has very low activity with chlorophyllide a and none with chlorophyll b. It acts on chlorophyll a both in its free form and in protein complex. SGRL, on the other hand, is more active with chlorophyllide a than with chlorophyll a. The magnesium formed is scavenged by MCS (metal-chelating substance).
History
EC 4.99.1.10 created 2017
Pathway
ec00860  Porphyrin metabolism
ec01110  Biosynthesis of secondary metabolites
Orthology
K22013  magnesium dechelatase
Genes
ATHAT1G44000 AT4G11910 AT4G11911 AT4G22920(NYE1)
ALY110227542 9303816 9310800 9330036
CRB17880941 17882664 17898091
CSAT104707485 104707486 104718013 104718062 104718066 104722741 104731201 104737198 104737199 104742156 104757939 104777551
EUSEUTSA_v10011724mg EUTSA_v10025991mg EUTSA_v10028881mg EUTSA_v10029210mg
BRP103834271 103847714 103858612 103860469(NYE1) 103861346
BNA106368456 106368457 106375753 106375754 106379154 106388569 106405908 106411225 106411238 106416069 106438786 106440469 106440765 111197916
BOE106296745 106306852 106311628 106325928 106332354 106332703
RSZ108810996 108820491 108820492 108820494 108843007 108844784 108846175 108849663 108849678
THJ104801615 104813011 104814157
CPAP110817458 110818153
CIT102607042 102625350
CICCICLE_v10002160mg CICLE_v10021651mg
PVY116135361 116138000
MINC123203048 123204564 123211317 123229230
TCC18592454 18606423
GRA105789173 105792158 105797117
GHI107910395 107915295 107926912 107929203 107929996 107951459 107963689
GAB108468973 108475537 108482352
DZI111277574 111290791 111305955 111311217
EGR104443756 104449661 104452205
GMX100780387 100783248 100792871 100795181 732541(SGR2) 732647(SGR1)
GSJ114377595 114391897 114393255 114410371 114415466 114424266
PVUPHAVU_002G153100g PHAVU_009G132100g
VRA106776916 106778818
VAR108330991 108335192
VUN114162819 114173885
CCAJ109800609 109804690
APRC113851144 113853161 113869257
MTRMTR_3g088795 MTR_5g011120
CAM101506979 101509366
LJALj1g3v0900940.1(Lj1g3v0900940.1) Lj2g3v2003030.1(Lj2g3v2003030.1) Lj4g3v1287250.1(Lj4g3v1287250.1) Lj4g3v1327600.1(Lj4g3v1327600.1)
ADU107460607 107488169 107489309
AIP107605991 107618299 107642980
AHF112706005 112722274 112749554 112764929 112800846 112805413
LANG109331955 109331956 109332267 109344325 109348932 109362567
FVE101291680 101309347
RCN112173708 112176610
PPER18768837 18778046
PMUM103337376 103342717
PAVI110747541 110763612 110769037
PDUL117628671 117637760
MDM103444765 114823090 114824730
PXB103938096 103938102 103952867 103956540
ZJU107423425 107423441
MNT21395814 21405919
CSV101206296 101219336
CMO103482692 103485669
BHJ120068030 120075133
MCHA111011794 111023234
CMAX111486879 111489764 111491161
CMOS111445411 111459528 111461394
CPEP111795404 111805902 111809060
RCU8270942 8272496
JCU105639018 105645904
HBR110640007 110646425 110649907 110669045
MESC110603639 110606316 110621067
POP18099608 7465829 7466435 7478087
PEU105112324 105128975 105132188
PALZ118028540 118029299 118033782 118033793
JRE108980093 108990686 108990827 109010899
QSU111989332 112030813
QLO115962097 115962147
TWL119980726 119996870 119997914 120017095
VVI100252353 100265112
VRI117905826 117906021 117927199
SLY101252980 101258237 778212(SGR1)
SPEN107006840 107018015 107027953
SOT102586926 102597935 102599319
CANN107849956 107866321(SGR) 107867750
NTA107763781 107780670 107804241 107817134 107818616 107819767 107824323
NSY104224916 104245095 104248440
NTO104097631 104101412 104101414 104117176
NAU109222385 109229634 109235637 109238401 109240001
INI109151097 109153247 109183467
ITR116018990 116026596 116027337
SIND105157242 105159434 105180060
OEU111368827 111379051 111397487 111407518
EGT105958581 105963408
SSPL121769405 121772425 121779761 121785958 121788883 121793744 121800140 121810882
HAN110864360 110864361 110921816 110941208
ECAD122578174 122578492 122582843
LSV111901931 111920775
CCAV112502612 112521276 112527422
DCR108192640 108205944 108206688 108216602
CSIN114262638 114274922 114288037 114288212 114303382 114303859
BVG104892367 104894688
SOE110782028 110784352
CQI110685908 110702530 110719427 110725760
NNU104596219 104599529 104608345
MING122062554 122094258
TSS122665171 122667503 122668442
PSOM113272243 113275025 113302415 113305294 113346460 113356451
NCOL116248984 116260051
OSA4347672
DOSAOs04t0692600-01(Os04g0692600) Os09t0532000-01(Os09g0532000)
OBR102711183
BDI100822302 100837300
ATS109750543 109757653
TDC119302596 119311272 119357340 119366651
TAES123055433 123104541 123112817 123122300 123175465 123191256
SBI8054896 8073690
ZMA100192013 606425 606426
SITA101765893 106804238
SVS117843798 117848460
PVIR120642225 120661350 120683068 120685287
PHAI112881901 112901722
PDA103716073 103718704
EGU105034133 105034966
MUS103971055 103973357 103979345 103993530
DCT110099840 110102081
PEQ110019890 110025696
AOF109821600
ATR18424250 18436871
SMOSELMODRAFT_15573 SELMODRAFT_15575
PPP112273408 112279759 112286188 112294044
CSLCOCSUDRAFT_61770
CVRCHLNCDRAFT_142305
APROF751_5480
OLUOSTLU_27130 OSTLU_29779
OTAOT_ostta13g01560
BPGBathy17g02020
MISMICPUN_101002
MPPMICPUCDRAFT_48109
 » show all
Reference
1  [PMID:11204197]
  Authors
Tang L, Okazawa A, Fukusaki E, Kobayashi A
  Title
Removal of magnesium by Mg-dechelatase is a major step in the chlorophyll-degrading pathway in Ginkgo biloba in the process of autumnal tints.
  Journal
Z Naturforsch C 55:923-6 (2000)
DOI:10.1515/znc-2000-11-1213
Reference
2
  Authors
Costa, M.A., Civello, P.M., Chaves, A.R. and Martinez, G.A.
  Title
Characterization of Mg-dechelatase activity obtained from Fragaria x ananassa fruit.
  Journal
Plant Physiol Biochem 40:111-118 (2002)
Reference
3  [PMID:15154496]
  Authors
Wang T, Quisenberry SS, Ni X, Tolmay V
  Title
Enzymatic chlorophyll degradation in wheat near-isogenic lines elicited by cereal aphid (Homoptera: Aphididae) feeding.
  Journal
J Econ Entomol 97:661-7 (2004)
DOI:10.1603/0022-0493-97.2.661
Reference
4  [PMID:15890522]
  Authors
Suzuki T, Kunieda T, Murai F, Morioka S, Shioi Y
  Title
Mg-dechelation activity in radish cotyledons with artificial and native substrates, Mg-chlorophyllin a and chlorophyllide a.
  Journal
Plant Physiol Biochem 43:459-64 (2005)
DOI:10.1016/j.plaphy.2005.03.009
Reference
5
  Authors
Kunieda, T., Amano, T. and Shioi, Y.
  Title
Search for chlorophyll degradation enzyme, Mg-dechelatase, from extracts of Chenopodium album with native and artificial substrates.
  Journal
Plant Sci 169:177-183 (2005)
Reference
6  [PMID:27604697]
  Authors
Shimoda Y, Ito H, Tanaka A
  Title
Arabidopsis STAY-GREEN, Mendel's Green Cotyledon Gene, Encodes Magnesium-Dechelatase.
  Journal
Plant Cell tpc.00428.2016 (2016)
DOI:10.1105/tpc.16.00428
  Sequence
Other DBs
ExplorEnz - The Enzyme Database: 4.99.1.10
IUBMB Enzyme Nomenclature: 4.99.1.10
ExPASy - ENZYME nomenclature database: 4.99.1.10
BRENDA, the Enzyme Database: 4.99.1.10
LinkDB

KEGG   REACTION: R09033
Entry
R09033                      Reaction                               
Name
chlorophyllide magnesium-lyase (pheophorbide-forming)
Definition
Chlorophyllide + 2 H+ <=> Pheophorbide a + Magnesium cation
Equation
Reaction class
RC01012  C02139_C18021
Enzyme
Pathway
rn00860  Porphyrin metabolism
rn01110  Biosynthesis of secondary metabolites
Orthology
K22013  magnesium dechelatase [EC:4.99.1.10]
Other DBs
RHEA: 52795
LinkDB

DBGET integrated database retrieval system