4.1.99.22: GTP 3',8-cyclase
This is an abbreviated version!
For detailed information about GTP 3',8-cyclase, go to the full flat file.
Word Map on EC 4.1.99.22
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4.1.99.22
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bicistronic
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s-adenosyl-l-methionine
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s-adenosylmethionine
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pyranopterin
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monophosphate
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molybdopterin
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barrel
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auxiliary
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pterin
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epr
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adomet
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mocs2a
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gephyrin
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embodying
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xanthine
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ansme
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hexamer
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butirosin
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monoclinic
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5'-deoxyadenosine
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thermus
- 4.1.99.22
-
bicistronic
- s-adenosyl-l-methionine
- s-adenosylmethionine
-
pyranopterin
- monophosphate
- molybdopterin
-
barrel
-
auxiliary
- pterin
- epr
- adomet
-
mocs2a
-
gephyrin
-
embodying
- xanthine
- ansme
-
hexamer
- butirosin
-
monoclinic
- 5'-deoxyadenosine
-
thermus
Reaction
Synonyms
AT2G31955, cnx2, CNX2/MOCS1A, EC 4.1.99.18, MoaA, MoaC, Moco-biosynthesis protein, MOCS1A, MOCS1B, MogA, molybdenum cofactor biosynthetic enzyme, molybdenum-cofactor biosynthesis protein
ECTree
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Engineering
Engineering on EC 4.1.99.22 - GTP 3',8-cyclase
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R88Q
C24S/C28S/C31S
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the mutant does not contain the catalytic S-adenosyl-L-methionine-binding cluster I
D198A
mutation in GG motif, decrease in affinity for S-adenosine-L-methionine
D198A
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mutation in GG motif, decrease in affinity for S-adenosine-L-methionine
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additional information
mutant xd22 has a mutation in CNX2 affecting the proximal FeS cluster loop. Complementation of the cnx2-2 phenotype by a genomic fragment including the promoter region from position -1224 and UTRs, amplified by PCR. Mutant cnx2-2 plants are transformed using Agrobacterium tumefaciens strain GV3101. The cnx2-2 mutation is not a knockout allele and growth is rescued by ammonia. Crosses between heterozygous cnx2-1 CNX2 and homozygous cnx2-2 plants give F1 offspring in two phenotype categories: seedlings with wild-type appearance corresponding to cnx2-1 CNX2 and small chlorotic seedlings that are genotyped as cnx2-1 cnx2-2
R88Q
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mutant xd22 has a mutation in CNX2 affecting the proximal FeS cluster loop. Complementation of the cnx2-2 phenotype by a genomic fragment including the promoter region from position -1224 and UTRs, amplified by PCR. Mutant cnx2-2 plants are transformed using Agrobacterium tumefaciens strain GV3101. The cnx2-2 mutation is not a knockout allele and growth is rescued by ammonia. Crosses between heterozygous cnx2-1 CNX2 and homozygous cnx2-2 plants give F1 offspring in two phenotype categories: seedlings with wild-type appearance corresponding to cnx2-1 CNX2 and small chlorotic seedlings that are genotyped as cnx2-1 cnx2-2
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generation of cnx2 mutants by T-DNA insertion, line cnx2-1, and point mutation, line cnx2-2. Mutation mapping by whole genome sequencing, phenotype analyses
additional information
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generation of cnx2 mutants by T-DNA insertion, line cnx2-1, and point mutation, line cnx2-2. Mutation mapping by whole genome sequencing, phenotype analyses
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additional information
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deletion of central components of the ISC system in addition to IscS leads to an overall decrease in Fe-S cluster enzyme and molybdoenzyme activity in addition to a decrease in the number of Fe-S-dependent thiomodifications of tRNA, based on the fact that some proteins involved in Moco biosynthesis and tRNA thiolation are Fe-S-dependent. Complementation of the ISC deficient strains with the suf operon restores the activity of Fe-S-containing proteins, including the MoaA protein, which is involved in the conversion of 5'-GTP to cyclic pyranopterin monophosphate in the fist step of Moco biosynthesis
additional information
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deletion of central components of the ISC system in addition to IscS leads to an overall decrease in Fe-S cluster enzyme and molybdoenzyme activity in addition to a decrease in the number of Fe-S-dependent thiomodifications of tRNA, based on the fact that some proteins involved in Moco biosynthesis and tRNA thiolation are Fe-S-dependent. Complementation of the ISC deficient strains with the suf operon restores the activity of Fe-S-containing proteins, including the MoaA protein, which is involved in the conversion of 5'-GTP to cyclic pyranopterin monophosphate in the fist step of Moco biosynthesis
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