SGID Silkworm Genome Informatics Database
Gene
KWMTBOMO13604
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]
Cofactor
FAD
FMN
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
EMBL
BABH01033329    BABH01033330    BABH01033331    KZ149909    PZC78203.1    NWSH01002102    + More
PCG69183.1    ODYU01012190    SOQ58367.1    RSAL01000002    RVE55064.1    KQ461153    KPJ08647.1    AGBW02014457    OWR41645.1    KQ459595    KPI95859.1    KK852672    KDR18756.1    NEVH01018378    PNF23516.1    GBBI01002110    JAC16602.1    CH474002    BC100107    JH816847    EKC32196.1    GBHO01001159    JAG42445.1    ACPB03015962    NEDP02002601    OWF50440.1    GEZM01009521    JAV94540.1    LRGB01000084    KZS21080.1    AAKN02042687    GFTR01004770    JAW11656.1    KK119061    KFM74548.1    GL732605    EFX71864.1    GDRN01069008    JAI64109.1    DS469594    EDO40246.1    AAQR03065011    AAQR03065012    AAQR03065013    AAQR03065014    AAQR03065015    AAQR03065016    GDIP01098086    JAM05629.1    ABGA01183291    ABGA01183292    ABGA01183293    NDHI03003490    PNJ34098.1    GDIP01047397    JAM56318.1    DQ084520    AK028628    AK155359    AK163449    CH466563    BC025942    GDIQ01256118    JAJ95606.1    GDIQ01144565    JAL07161.1    PNJ34090.1    JH167284    EHB01565.1    CABD030106542    CABD030106543    AACZ04025692    AF121213    AF121202    AF121203    AF121204    AF121205    AF121206    AF121207    AF121208    AF121209    AF121210    AF121211    AF121212    AF121214    AF025794    AC010346    AC025174    BC054816    BC109216    CR858039    CAH90280.1    NBAG03000338    PNI38500.1    JH882422    ELR49493.1    GDIQ01190608    JAK61117.1    AJFE02028228    PNI38499.1    CT033781    UYYF01004445    VDN04179.1    IAAA01021001    LAA06735.1    IAAA01021002    LAA06737.1    AAEX03017166    KB106364    ELK31263.1    GDIP01066844    JAM36871.1    AKHW03003364    KYO34660.1    JU325484    AFE69240.1    AQIA01057747    AQIA01057748    MRZV01000518    PIK48504.1    RCHS01004322    RMX36468.1    CM001258    EHH26393.1    JSUE03035350    KE161240    EPQ02507.1   
Pfam
PF00175   NAD_binding_1        + More
PF00667   FAD_binding_1
PF00151   Lipase
PF00258   Flavodoxin_1
Interpro
IPR017938   Riboflavin_synthase-like_b-brl        + More
IPR017927   FAD-bd_FR_type       
IPR001433   OxRdtase_FAD/NAD-bd       
IPR001709   Flavoprot_Pyr_Nucl_cyt_Rdtase       
IPR023173   NADPH_Cyt_P450_Rdtase_alpha       
IPR003097   CysJ-like_FAD-binding       
IPR039261   FNR_nucleotide-bd       
IPR033906   Lipase_N       
IPR013818   Lipase/vitellogenin       
IPR029058   AB_hydrolase       
IPR029039   Flavoprotein-like_sf       
IPR001094   Flavdoxin-like       
IPR008254   Flavodoxin/NO_synth       
IPR023208   P450R       
SUPFAM
SSF63380   SSF63380        + More
SSF52343   SSF52343       
SSF53474   SSF53474       
SSF52218   SSF52218       
PDB
2QTZ     E-value=3.19443e-50,     Score=502

Ontologies

Topology

Subcellular location
Secreted  
Cytoplasm  
Endoplasmic reticulum membrane  
Length:
441
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
outside
1  -  441
 
 

Population Genetic Test Statistics

Pi
319.984897
Theta
195.387804
Tajima's D
1.910458
CLR
0.164169
CSRT
0.866556672166392
Interpretation
Uncertain
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