GenProp0305 |
cysteine biosynthesis~The biosynthesis of the amino acid cysteine may be achieved via several routes. Most commonly serine is the starting point (GenProp0218), while in the archaea a mis-charged cys-tRNA bearing O-phosphoserine is modified (GenProp0304). |
True - {{t}} |
True - {{t}} |
Confirmed presence |
|
Evidence_85853 |
GenProp0304 GENPROP |
None - {{∅}} |
False - {{f}} |
Unconfirmed absence |
|
Component_48840 |
serine O-acetyltransferase |
True - {{t}} |
True - {{t}} |
Confirmed presence |
|
Component_64077 |
cysteine biosynthesis |
True - {{t}} |
True - {{t}} |
Confirmed presence |
|
Evidence_61338 |
TIGR01138 HMM |
None - {{∅}} |
False - {{f}} |
Unconfirmed absence |
|
Component_51214 |
O-phosphoseryl-tRNA synthetase |
None - {{∅}} |
False - {{f}} |
Unconfirmed absence |
|
Evidence_85852 |
GenProp0218 GENPROP |
True - {{t}} |
True - {{t}} |
Confirmed presence |
|
Component_48841 |
cysteine synthase |
True - {{t}} |
True - {{t}} |
Confirmed presence |
|
GenProp0218 |
cysteine biosynthesis from serine~The conversion of L-serine to L-cysteine takes two enzymatic steps, described here. The first step involves Serine acetyl-transferase, and the second step involves acetylserine lyase which forms L-cysteine. |
True - {{t}} |
True - {{t}} |
Confirmed presence |
|
Evidence_65816 |
TIGR02539 HMM |
None - {{∅}} |
False - {{f}} |
Unconfirmed absence |
|
Component_51215 |
Sep-tRNA:Cys-tRNA synthase |
None - {{∅}} |
False - {{f}} |
Unconfirmed absence |
|
Evidence_61340 |
TIGR01172 HMM |
True - {{t}} |
True - {{t}} |
Confirmed presence |
|
GenProp0304 |
cysteine biosynthesis, tRNA-dependent~Methanocaldococcus jannaschii is a model archaeal species that lacks a direct cys--tRNA ligase. In a system analogous to pyrrolysine and (in many species) asparagine tRNA aminoacylation, the tRNA is misacylated and then the attached amino acid is modified. This two-step pathway is conducted by proteins in the families of MJ1660 (sepS) and MJ1678 (pscS). This pathway assumes 0-phosphoserine, whose biosynthesis is proposed to require D-3-phosphoglycerate dehydrogenase (TIGR01327) and an unidentified aminotransferase. |
None - {{∅}} |
False - {{f}} |
Unconfirmed absence |
|
Evidence_61339 |
TIGR01139 HMM |
True - {{t}} |
True - {{t}} |
Confirmed presence |
|
Evidence_65815 |
TIGR00470 HMM |
None - {{∅}} |
False - {{f}} |
Unconfirmed absence |
|