Cloned (Comment) | Organism |
---|---|
expression in Escherichia coli | Escherichia coli |
Protein Variants | Comment | Organism |
---|---|---|
H151A | mutant has aout 57% of the heme content of wild-type | Escherichia coli |
H164A | mutant has aout 63% of the heme content of wild-type | Escherichia coli |
H91A | almost complete loss of heme binding | Escherichia coli |
Localization | Comment | Organism | GeneOntology No. | Textmining |
---|---|---|---|---|
membrane | subunit MsrQ | Escherichia coli | 16020 | - |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Escherichia coli | P76342 and P76343 | P76342 i.e. catalytic subunit MsrP, P76343 i.e. heme-binding subunit MsrQ | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
additional information | subunit MsrQ is reduced due to the free reduced FMN generated by the flavin reductase Fre activity | Escherichia coli | ? | - |
? | |
[protein]-L-methionine + a quinone + H2O | - |
Escherichia coli | [protein]-L-methionine (R)-S-oxide + a quinol | - |
r | |
[protein]-L-methionine + a quinone + H2O | - |
Escherichia coli | [protein]-L-methionine (S)-S-oxide + a quinol | - |
r |
Subunits | Comment | Organism |
---|---|---|
More | protein physically interacts with flavin reductase Fre | Escherichia coli |
Synonyms | Comment | Organism |
---|---|---|
MsrP | - |
Escherichia coli |
MsrQ | - |
Escherichia coli |
protein-methionine-sulfoxide reductase | - |
Escherichia coli |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
heme | heme/protein ratio is 2.5. The extinction coefficient value for the oxidized subunit MsrQ form at 412 nm is 51950 per M and cm. For the reduced MsrQ form at 426 and 558 nm, the extinction coefficient values are 69015 per M and cm and 11075 per M and cm, respectively | Escherichia coli |