Entry
Name
plant cystathionine gamma-synthase;
CGS1 (gene name)
Class
Transferases;
Transferring alkyl or aryl groups, other than methyl groups;
Transferring alkyl or aryl groups, other than methyl groups (only sub-subclass identified to date)
BRITE hierarchy
Sysname
O-phospho-L-homoserine:L-cysteine S-(3-amino-3-carboxypropyl)transferase
Reaction(IUBMB)
O-phospho-L-homoserine + L-cysteine = L-cystathionine + phosphate [RN:
R13363 ]
Reaction(KEGG)
Substrate
O-phospho-L-homoserine [CPD:
C01102 ];
L-cysteine [CPD:
C00097 ]
Product
Comment
A pyridoxal 5'-phosphate-dependent enzyme, found in plants, that participates in the plant L-methionine biosynthetic pathway. It differs from its bacterial counterpart, EC
2.5.1.48 , cystathionine gamma-synthase, in being specific for O-phospho-L-homoserine (the bacterial enzyme is specific for O-succinyl-L-homoserine).
History
EC 2.5.1.160 created 2024
Pathway
ec00270 Cysteine and methionine metabolism
ec01110 Biosynthesis of secondary metabolites
Orthology
K27857 plant cystathionine gamma-synthase
Genes
ATH : AT1G33320 AT3G01120(MTO1)
CSAT : 104705809 104709147 104713707 104735553 104741921 104744259 104757690 104763752 104772267 104777342
EUS : EUTSA_v10013649mg EUTSA_v10015332mg EUTSA_v10020394mg
BRP : 103847532 103858929 103870949
BNA : 106369895 106388653 106438910 106453252 125587586
RSZ : 108805200 108816558 108859429
GHI : 107940600 107943482 107949182 107955507
HSYR : 120131071 120146404 120147413
GMX : 100794584(CGS1) 548023(CGS2)
TPRA : 123888706 123905714
PSAT : 127115522 127128575
AHF : 112716416 112744507 112782319 112797810
QSA : O6P43_004457 O6P43_004461 O6P43_009102
MSYL : 126583738 126612033
CMAX : 111482275 111500161
CMOS : 111437871 111441806
CPEP : 111785529 111791156 111793706
MESC : 110609102 110630068
CILL : 122302435 122307662
SOT : 102577796(CGS2) 102601571(CGS1)
SSTN : 125847060 125860583
SDUL : 129872402 129880150 129894274
CANN : 107858737 107868072
NTA : 107762350 107771605 107774020 107803531 107814266 107822634(metB)
NSY : 104223192 104225689 104243701
NTO : 104089663 104097273 104119212
NAU : 109211558 109213315 109230850
SIND : 105167647 105177271
SSPL : 121769486 121769894
APAN : 127240713 127258040
CSIN : 114296518 114315886
MING : 122064687 122076661
PSOM : 113300382 113318095
OSA : 107276273 4332956 4348560 4348561
OBR : 102704742 102705012 102709311 102717509
OGL : 127753299 127753301 127753340 127767510 127776357
ATS : 109769348 109769349 109769350 109769351 109773976
TDC : 119285889 119296170 119343815 119344617 119344680 119345168 119346144 119347801 119357507 119367033 119367034 119367037 119367040
TAES : 123038900 123040260 123040261 123040262 123040265 123048427 123048428 123048429 123055569 123086069 123092032 123097358 123177566 123184451 123184452 123184453 123184465
TUA : 125530992 125534839 125551509
LPER : 127329376 127332281 127335962
LRD : 124671488 124677648 124677829 124677843 124678318 124702512 124702527
ZMA : 100191523 103645417 103645418 541650
MFLO : 136530790 136543734 136544423
SITA : 101759864 101760683 101776607
SVS : 117837167 117838468 117839653
PVIR : 120648660 120652218 120688069 120688976 120691777
PHAI : 112875885 112876249 112876355
ZOF : 122002278 122006536 122042268 122046789
SMO : SELMODRAFT_143363 SELMODRAFT_155550
» show all
Taxonomy
Reference
Authors
Ravanel S, Gakiere B, Job D, Douce R
Title
Cystathionine gamma-synthase from Arabidopsis thaliana: purification and biochemical characterization of the recombinant enzyme overexpressed in Escherichia coli.
Journal
Sequence
Reference
Authors
Steegborn C, Messerschmidt A, Laber B, Streber W, Huber R, Clausen T.
Title
The crystal structure of cystathionine gamma-synthase from Nicotiana tabacum reveals its substrate and reaction specificity.
Journal
Sequence
Reference
Authors
Clausen T, Wahl MC, Messerschmidt A, Huber R, Fuhrmann JC, Laber B, Streber W, Steegborn C.
Title
Cloning, purification and characterisation of cystathionine gamma-synthase from Nicotiana tabacum.
Journal
Sequence
Other DBs
ExPASy - ENZYME nomenclature database: 2.5.1.160
LinkDB
All DBs