Pre Gene Modal
BGIBMGA011007
Annotation
PREDICTED:_methionine_synthase_reductase_[Papilio_polytes]
Full name
Methionine synthase reductase
+ More
NADPH--cytochrome P450 reductase
Location in the cell
Cytoplasmic   Reliability : 1.798 Nuclear   Reliability : 2.111
Sequence
CDS
ATGGTAGTGATTCAATCTCTAAGAGATACTTTGCAAGCACTACCAGAAAAAACTGTATTTACTTTACCTACATTAACGAAAGTGATTTCTTTGAAACTCGAATACAGAGTGGGAGATGCAAACACAACAATTTATAATGGACCAGACCCAAAATTACCATTTGCTAATTCTGAGCTATTTTATGCTACAATTTCTCAATCAAGGAGGTTGACTGCTTGTGATCAAGGATGCAAAGATGTTTATGAAATCACTTTTGATGTGAAGGATAGTAATTTCACTTTCAAGGCTGGTGATACAATAGGGAATAAAGAAAGTAAAATACCAACACATGTACCTGTTAAATCAACGTTGAGACAAGTGTTGACTGATTGTTTGGATCTTCGGTGTTTGCTTAAAAAGTTGTTCCTGTTAGCGATATCGAGATATACAAAAGAAGATAACGAAAGACAAGTACTCGAATATTTAAGCAGCAAGGAAGGATCTACAGCATATAAAACTCACATATTAAACAAACAAATAAACATTTTGGATATATTCACACTGTTTCCATCCTGCAAGCCACCAATAGAAGTATTATTATCCTATTTACCGAAGCTACTGCCTAGACCATATTCTATAGTCAATTCATATTTAGAAGACAGTAATGCAATTAAAATTTGCTTCTCCGTAATGAATTTAGGAAATAACAGAAGAGGTCTAACAACTGGTTTGTTGGAAGATCACATTTTGAACAAAAACATCAATCTGGAGCATAGTCTAAATGATTTATGTTTAACAGACCATAAACAGAGAAGTGAGTTCAAGGTGCCTATTTATATGAGGAAGAATATTTCCGGGTTCAGTTTGTCTGAAAATTTAGAAACTCCATTGATATTCATTGGTCCCGGTACTGGAGTAGCTCCCTTTATAGGATTTTTACAAGAAATAGAGTATGCAAAGAAGAAGAATTCTAAAGGAAAGTTTGGTACAGTCGACCTGTTTTTCGGATGCAGGAATCCCGAATTAGATTTTATCTACGAGAAGGAACTAAAAGGATTTTTGTCACGGAACGTATTGAATAGTTTGAATGTATCTTTTTCGAGAGTTGATAACAATGAGGTCAAATACGTTCAGGATGCTGTTATGAATGAAGGAGAAAAGATAGCTCAGTTAATAAAAGATGGAGCAAATATATTTGTTTGCGGAGATGTTAGAACGATAGCAGAACAAATAAAAGATGTCTTAATTAAATGCCTTACTAAATATGATAATTGTTTAGAGAATCATGAGAAATATATAGTGCAGATGGAGAAAGACAGAAGATATATTGTGGACGCTTGGTGTTAA
Protein
MVVIQSLRDTLQALPEKTVFTLPTLTKVISLKLEYRVGDANTTIYNGPDPKLPFANSELFYATISQSRRLTACDQGCKDVYEITFDVKDSNFTFKAGDTIGNKESKIPTHVPVKSTLRQVLTDCLDLRCLLKKLFLLAISRYTKEDNERQVLEYLSSKEGSTAYKTHILNKQINILDIFTLFPSCKPPIEVLLSYLPKLLPRPYSIVNSYLEDSNAIKICFSVMNLGNNRRGLTTGLLEDHILNKNINLEHSLNDLCLTDHKQRSEFKVPIYMRKNISGFSLSENLETPLIFIGPGTGVAPFIGFLQEIEYAKKKNSKGKFGTVDLFFGCRNPELDFIYEKELKGFLSRNVLNSLNVSFSRVDNNEVKYVQDAVMNEGEKIAQLIKDGANIFVCGDVRTIAEQIKDVLIKCLTKYDNCLENHEKYIVQMEKDRRYIVDAWC
Summary
Description
Involved in the reductive regeneration of cob(I)alamin (vitamin B12) cofactor required for the maintenance of methionine synthase in a functional state. Necessary for utilization of methylgroups from the folate cycle, thereby affecting transgenerational epigenetic inheritance. Folate pathway donates methyl groups necessary for cellular methylation and affects different pathways such as DNA methylation, possibly explaining the transgenerational epigenetic inheritance effects.
This enzyme is required for electron transfer from NADP to cytochrome P450 in microsomes. It can also provide electron transfer to heme oxygenase and cytochrome B5.
Catalytic Activity
2 [methionine synthase]-methylcob(III)alamin + H(+) + NADP(+) + 2 S-adenosyl-L-homocysteine = 2 [methionine synthase]-cob(II)alamin + NADPH + 2 S-adenosyl-L-methionine
NADPH + 2 oxidized [cytochrome P450] = H(+) + NADP(+) + 2 reduced [cytochrome P450]
Biophysicochemical Properties
2.89 uM for NADPH
3540 uM for NADH
Similarity
Belongs to the AB hydrolase superfamily. Lipase family.
Belongs to the NADPH--cytochrome P450 reductase family.
In the C-terminal section; belongs to the flavoprotein pyridine nucleotide cytochrome reductase family.
In the N-terminal section; belongs to the flavodoxin family.
Keywords
Alternative splicing
Amino-acid biosynthesis
Complete proteome
Cytoplasm
FAD
Flavoprotein
FMN
Methionine biosynthesis
NADP
Oxidoreductase
Phosphoprotein
Reference proteome
S-adenosyl-L-methionine
3D-structure
Disease mutation
Polymorphism
Feature
chain Methionine synthase reductase
splice variant In isoform 2.
sequence variant Polymorphism; may increase risk for spina bifida; dbSNP:rs1801394.
EC Number
1.16.1.8
1.6.2.4
PDB
2QTZ
E-value=3.19443e-50,
Score=502
Ontologies
Topology
Subcellular location
Secreted
Cytoplasm
Endoplasmic reticulum membrane
Number of predicted TMHs:
0
Exp number of AAs in TMHs:
0.95043
Exp number, first 60 AAs:
0.00042
Total prob of N-in:
0.00865
Population Genetic Test Statistics