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Conserved domains on  [gi|30679888|ref|NP_192393|]
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methionine sulfoxide reductase B6 [Arabidopsis thaliana]

Protein Classification

peptide-methionine (R)-S-oxide reductase( domain architecture ID 10483249)

peptide-methionine (R)-S-oxide reductase catalyzes the reduction of methionine sulfoxide (MetSO) to methionine in proteins

CATH:  2.170.150.20
EC:  1.8.4.12
Gene Ontology:  GO:0046872|GO:0033743|GO:0030091|GO:0034599
PubMed:  11169920
SCOP:  4002166

Graphical summary

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List of domain hits

 Name Accession Description Interval E-value
SelR pfam01641
SelR domain; Methionine sulfoxide reduction is an important process, by which cells regulate ...
 30-146 3.34e-61

SelR domain; Methionine sulfoxide reduction is an important process, by which cells regulate biological processes and cope with oxidative stress. MsrA, a protein involved in the reduction of methionine sulfoxides in proteins, has been known for four decades and has been extensively characterized with respect to structure and function. However, recent studies revealed that MsrA is only specific for methionine-S-sulfoxides. Because oxidized methionines occur in a mixture of R and S isomers in vivo, it was unclear how stereo-specific MsrA could be responsible for the reduction of all protein methionine sulfoxides. It appears that a second methionine sulfoxide reductase, SelR, evolved that is specific for methionine-R-sulfoxides, the activity that is different but complementary to that of MsrA. Thus, these proteins, working together, could reduce both stereoisomers of methionine sulfoxide. This domain is found both in SelR proteins and fused with the peptide methionine sulfoxide reductase enzymatic domain pfam01625. The domain has two conserved cysteine and histidines. The domain binds both selenium and zinc. The final cysteine is found to be replaced by the rare amino acid selenocysteine in some members of the family. This family has methionine-R-sulfoxide reductase activity.


:

Pssm-ID: 460278  Cd Length: 120  Bit Score: 184.48  E-value: 3.34e-61
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 30679888    30 EWRTVLSPEQFKILREKSIEKRGSGEYVKLFEEGIYCCVGCGNPVYKSTTKFDSGCGWPAFFDAIPG-AINRTEERA--G 106
Cdd:pfam01641   1 EWRKRLTPEQYRVLREKGTERPFTGEYWDNKEPGIYVCAGCGTPLFSSDTKFDSGCGWPSFYDPIPGdAVKEKEDTShgM 80

                          90       100       110       120
                  ....*....|....*....|....*....|....*....|
gi 30679888   107 LRYEITCTKCDGHLGHVLkNEGfPTPTDERHCVNSVALKF 146
Cdd:pfam01641  81 VRTEVRCARCGGHLGHVF-DDG-PPPTGLRYCINSASLKF 118
 
Name Accession Description Interval E-value
SelR pfam01641
SelR domain; Methionine sulfoxide reduction is an important process, by which cells regulate ...
 30-146 3.34e-61

SelR domain; Methionine sulfoxide reduction is an important process, by which cells regulate biological processes and cope with oxidative stress. MsrA, a protein involved in the reduction of methionine sulfoxides in proteins, has been known for four decades and has been extensively characterized with respect to structure and function. However, recent studies revealed that MsrA is only specific for methionine-S-sulfoxides. Because oxidized methionines occur in a mixture of R and S isomers in vivo, it was unclear how stereo-specific MsrA could be responsible for the reduction of all protein methionine sulfoxides. It appears that a second methionine sulfoxide reductase, SelR, evolved that is specific for methionine-R-sulfoxides, the activity that is different but complementary to that of MsrA. Thus, these proteins, working together, could reduce both stereoisomers of methionine sulfoxide. This domain is found both in SelR proteins and fused with the peptide methionine sulfoxide reductase enzymatic domain pfam01625. The domain has two conserved cysteine and histidines. The domain binds both selenium and zinc. The final cysteine is found to be replaced by the rare amino acid selenocysteine in some members of the family. This family has methionine-R-sulfoxide reductase activity.


Pssm-ID: 460278  Cd Length: 120  Bit Score: 184.48  E-value: 3.34e-61
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 30679888    30 EWRTVLSPEQFKILREKSIEKRGSGEYVKLFEEGIYCCVGCGNPVYKSTTKFDSGCGWPAFFDAIPG-AINRTEERA--G 106
Cdd:pfam01641   1 EWRKRLTPEQYRVLREKGTERPFTGEYWDNKEPGIYVCAGCGTPLFSSDTKFDSGCGWPSFYDPIPGdAVKEKEDTShgM 80

                          90       100       110       120
                  ....*....|....*....|....*....|....*....|
gi 30679888   107 LRYEITCTKCDGHLGHVLkNEGfPTPTDERHCVNSVALKF 146
Cdd:pfam01641  81 VRTEVRCARCGGHLGHVF-DDG-PPPTGLRYCINSASLKF 118
MsrB COG0229
Peptide methionine sulfoxide reductase MsrB [Posttranslational modification, protein turnover, ...
 24-146 4.24e-60

Peptide methionine sulfoxide reductase MsrB [Posttranslational modification, protein turnover, chaperones];


Pssm-ID: 439999  Cd Length: 133  Bit Score: 181.82  E-value: 4.24e-60
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 30679888  24 IKKSNEEWRTVLSPEQFKILREKSIEKRGSGEYVKLFEEGIYCCVGCGNPVYKSTTKFDSGCGWPAFFDAI-PGAINRTE 102
Cdd:COG0229   5 VKKSDAEWRARLTPEQYRVLREKGTERPFSGEYWDNKEEGIYVCAGCGAPLFSSDTKFDSGTGWPSFTKPIdPGAVEEKE 84

                        90       100       110       120
                ....*....|....*....|....*....|....*....|....*.
gi 30679888 103 ERA-GL-RYEITCTKCDGHLGHVLkNEGfPTPTDERHCVNSVALKF 146
Cdd:COG0229  85 DRShGMvRTEVRCARCGAHLGHVF-DDG-PPPTGLRYCINSAALRF 128
PRK05550 PRK05550
bifunctional methionine sulfoxide reductase B/A protein; Provisional
 35-151 1.74e-50

bifunctional methionine sulfoxide reductase B/A protein; Provisional


Pssm-ID: 235499 [Multi-domain]  Cd Length: 283  Bit Score: 162.76  E-value: 1.74e-50
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 30679888   35 LSPEQFKILREKSIEKRGSGEYVKLFEEGIYCCVGCGNPVYKSTTKFDSGCGWPAFFDAIPGAINRTEERAGLRYEITCT 114
Cdd:PRK05550   7 LTPFEYRVIEDKGTERPFSGEYYDHDEKGVYLCRRCGAPLFRSEDKFNSGCGWPSFDDEIPGAVKRLPDADGRRTEIVCA 86

                         90       100       110
                 ....*....|....*....|....*....|....*..
gi 30679888  115 KCDGHLGHVLKNEGFpTPTDERHCVNSVALKFSSAIT 151
Cdd:PRK05550  87 NCGAHLGHVFEGEGL-TPKNTRHCVNSASLDFVPAEE 122
TIGR00357 TIGR00357
methionine-R-sulfoxide reductase; This model describes a domain found in PilB, a protein ...
 25-146 3.63e-44

methionine-R-sulfoxide reductase; This model describes a domain found in PilB, a protein important for pilin expression, N-terminal to a domain coextensive to with the known peptide methionine sulfoxide reductase (MsrA), a protein repair enzyme, of E. coli. Among the early completed genomes, this module is found if and only if MsrA is also found, whether N-terminal to MsrA (as for Helicobacter pylori), C-terminal (as for Treponema pallidum), or in a separate polypeptide. Although the function of this region is not clear, an auxiliary function to MsrA is suggested. [Protein fate, Protein modification and repair, Cellular processes, Adaptations to atypical conditions]


Pssm-ID: 129454  Cd Length: 134  Bit Score: 141.83  E-value: 3.63e-44
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 30679888    25 KKSNEEWRTVLSPEQFKILREKSIEKRGSGEYVKLFEEGIYCCVGCGNPVYKSTTKFDSGCGWPAFFDAIPGAI--NRTE 102
Cdd:TIGR00357   1 KPSDEELKKKLTPLQYEVTQNAGTEPPFTNEYWDNKEEGIYVDITCGEPLFSSEDKFDSGCGWPSFYKPISEEVvaYERD 80

                          90       100       110       120
                  ....*....|....*....|....*....|....*....|....*
gi 30679888   103 ERAGL-RYEITCTKCDGHLGHVLkNEGfPTPTDERHCVNSVALKF 146
Cdd:TIGR00357  81 ESHGMiRTEVRCRNCDAHLGHVF-DDG-PEPTGLRYCINSAALKF 123
 
Name Accession Description Interval E-value
SelR pfam01641
SelR domain; Methionine sulfoxide reduction is an important process, by which cells regulate ...
 30-146 3.34e-61

SelR domain; Methionine sulfoxide reduction is an important process, by which cells regulate biological processes and cope with oxidative stress. MsrA, a protein involved in the reduction of methionine sulfoxides in proteins, has been known for four decades and has been extensively characterized with respect to structure and function. However, recent studies revealed that MsrA is only specific for methionine-S-sulfoxides. Because oxidized methionines occur in a mixture of R and S isomers in vivo, it was unclear how stereo-specific MsrA could be responsible for the reduction of all protein methionine sulfoxides. It appears that a second methionine sulfoxide reductase, SelR, evolved that is specific for methionine-R-sulfoxides, the activity that is different but complementary to that of MsrA. Thus, these proteins, working together, could reduce both stereoisomers of methionine sulfoxide. This domain is found both in SelR proteins and fused with the peptide methionine sulfoxide reductase enzymatic domain pfam01625. The domain has two conserved cysteine and histidines. The domain binds both selenium and zinc. The final cysteine is found to be replaced by the rare amino acid selenocysteine in some members of the family. This family has methionine-R-sulfoxide reductase activity.


Pssm-ID: 460278  Cd Length: 120  Bit Score: 184.48  E-value: 3.34e-61
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 30679888    30 EWRTVLSPEQFKILREKSIEKRGSGEYVKLFEEGIYCCVGCGNPVYKSTTKFDSGCGWPAFFDAIPG-AINRTEERA--G 106
Cdd:pfam01641   1 EWRKRLTPEQYRVLREKGTERPFTGEYWDNKEPGIYVCAGCGTPLFSSDTKFDSGCGWPSFYDPIPGdAVKEKEDTShgM 80

                          90       100       110       120
                  ....*....|....*....|....*....|....*....|
gi 30679888   107 LRYEITCTKCDGHLGHVLkNEGfPTPTDERHCVNSVALKF 146
Cdd:pfam01641  81 VRTEVRCARCGGHLGHVF-DDG-PPPTGLRYCINSASLKF 118
MsrB COG0229
Peptide methionine sulfoxide reductase MsrB [Posttranslational modification, protein turnover, ...
 24-146 4.24e-60

Peptide methionine sulfoxide reductase MsrB [Posttranslational modification, protein turnover, chaperones];


Pssm-ID: 439999  Cd Length: 133  Bit Score: 181.82  E-value: 4.24e-60
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 30679888  24 IKKSNEEWRTVLSPEQFKILREKSIEKRGSGEYVKLFEEGIYCCVGCGNPVYKSTTKFDSGCGWPAFFDAI-PGAINRTE 102
Cdd:COG0229   5 VKKSDAEWRARLTPEQYRVLREKGTERPFSGEYWDNKEEGIYVCAGCGAPLFSSDTKFDSGTGWPSFTKPIdPGAVEEKE 84

                        90       100       110       120
                ....*....|....*....|....*....|....*....|....*.
gi 30679888 103 ERA-GL-RYEITCTKCDGHLGHVLkNEGfPTPTDERHCVNSVALKF 146
Cdd:COG0229  85 DRShGMvRTEVRCARCGAHLGHVF-DDG-PPPTGLRYCINSAALRF 128
PRK05550 PRK05550
bifunctional methionine sulfoxide reductase B/A protein; Provisional
 35-151 1.74e-50

bifunctional methionine sulfoxide reductase B/A protein; Provisional


Pssm-ID: 235499 [Multi-domain]  Cd Length: 283  Bit Score: 162.76  E-value: 1.74e-50
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 30679888   35 LSPEQFKILREKSIEKRGSGEYVKLFEEGIYCCVGCGNPVYKSTTKFDSGCGWPAFFDAIPGAINRTEERAGLRYEITCT 114
Cdd:PRK05550   7 LTPFEYRVIEDKGTERPFSGEYYDHDEKGVYLCRRCGAPLFRSEDKFNSGCGWPSFDDEIPGAVKRLPDADGRRTEIVCA 86

                         90       100       110
                 ....*....|....*....|....*....|....*..
gi 30679888  115 KCDGHLGHVLKNEGFpTPTDERHCVNSVALKFSSAIT 151
Cdd:PRK05550  87 NCGAHLGHVFEGEGL-TPKNTRHCVNSASLDFVPAEE 122
PRK05508 PRK05508
methionine-R-sulfoxide reductase;
35-146 1.06e-48

methionine-R-sulfoxide reductase;


Pssm-ID: 180121  Cd Length: 119  Bit Score: 152.56  E-value: 1.06e-48
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 30679888   35 LSPEQFKILREKSIEKRGSGEYVKLFEEGIYCCVGCGNPVYKSTTKFDSGCGWPAFFDAIPGAINRTEERAGLRYEITCT 114
Cdd:PRK05508   4 LTPEEEAVILRKGTEPPFSGEYNDFFEKGTYVCKQCGAPLYRSEDKFKSGCGWPSFDDEIKGAVKRIPDADGRRTEIVCA 83

                         90       100       110
                 ....*....|....*....|....*....|..
gi 30679888  115 KCDGHLGHVLKNEGFpTPTDERHCVNSVALKF 146
Cdd:PRK05508  84 NCGGHLGHVFEGEGF-TPKNTRHCVNSISLKF 114
TIGR00357 TIGR00357
methionine-R-sulfoxide reductase; This model describes a domain found in PilB, a protein ...
 25-146 3.63e-44

methionine-R-sulfoxide reductase; This model describes a domain found in PilB, a protein important for pilin expression, N-terminal to a domain coextensive to with the known peptide methionine sulfoxide reductase (MsrA), a protein repair enzyme, of E. coli. Among the early completed genomes, this module is found if and only if MsrA is also found, whether N-terminal to MsrA (as for Helicobacter pylori), C-terminal (as for Treponema pallidum), or in a separate polypeptide. Although the function of this region is not clear, an auxiliary function to MsrA is suggested. [Protein fate, Protein modification and repair, Cellular processes, Adaptations to atypical conditions]


Pssm-ID: 129454  Cd Length: 134  Bit Score: 141.83  E-value: 3.63e-44
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 30679888    25 KKSNEEWRTVLSPEQFKILREKSIEKRGSGEYVKLFEEGIYCCVGCGNPVYKSTTKFDSGCGWPAFFDAIPGAI--NRTE 102
Cdd:TIGR00357   1 KPSDEELKKKLTPLQYEVTQNAGTEPPFTNEYWDNKEEGIYVDITCGEPLFSSEDKFDSGCGWPSFYKPISEEVvaYERD 80

                          90       100       110       120
                  ....*....|....*....|....*....|....*....|....*
gi 30679888   103 ERAGL-RYEITCTKCDGHLGHVLkNEGfPTPTDERHCVNSVALKF 146
Cdd:TIGR00357  81 ESHGMiRTEVRCRNCDAHLGHVF-DDG-PEPTGLRYCINSAALKF 123
PRK14018 PRK14018
bifunctional peptide-methionine (S)-S-oxide reductase MsrA/peptide-methionine (R)-S-oxide ...
 25-146 7.31e-22

bifunctional peptide-methionine (S)-S-oxide reductase MsrA/peptide-methionine (R)-S-oxide reductase MsrB;


Pssm-ID: 184456 [Multi-domain]  Cd Length: 521  Bit Score: 90.32  E-value: 7.31e-22
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 30679888   25 KKSNEEWRTVLSPEQFKILREKSIEKRGSGEYVKLFEEGIYCCVGCGNPVYKSTTKFDSGCGWPAFFDAI-PGAINRTEE 103
Cdd:PRK14018 379 KPSDAELKRTLTEEQYQITQNAATERAFSHEYDHLFKPGIYVDVVSGEPLFSSADKYDSGCGWPSFTRPIdAKVVTEHDD 458

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....*....
gi 30679888  104 RA--GLRYEITCTKCDGHLGHVlknegFPT-PTDE---RHCVNSVALKF 146
Cdd:PRK14018 459 FSynMRRTEVRSRAADSHLGHV-----FPDgPRDKgglRYCINGASLKF 502
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options:Database: CDSEARCH/cdd   Low complexity filter: no  Composition Based Adjustment: yes   E-value threshold: 0.01

References:

  • Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
  • Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
  • Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
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