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Conserved domains on  [gi|219842317|ref|NP_001137151|]
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glutathione S-transferase kappa 1 isoform b [Homo sapiens]

Protein Classification

DsbA_GSTK domain-containing protein( domain architecture ID 10122488)

DsbA_GSTK domain-containing protein

Graphical summary

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List of domain hits

 Name Accession Description Interval E-value
DsbA_GSTK cd03021
DsbA family, Glutathione (GSH) S-transferase Kappa (GSTK) subfamily; GSTK is a member of the ...
 6-267 1.78e-100

DsbA family, Glutathione (GSH) S-transferase Kappa (GSTK) subfamily; GSTK is a member of the GST family of enzymes which catalyzes the transfer of the thiol of GSH to electrophilic substrates. It is specifically located in the mitochondria and peroxisomes, unlike other members of the canonical GST family, which are mainly cytosolic. The biological substrates of GSTK are not yet known. It is presumed to have a protective role during respiration when large amounts of reactive oxygen species are generated. GSTK has the same general fold as DsbA, consisting of a thioredoxin domain interrupted by an alpha-helical domain and its biological unit is a homodimer. GSTK is closely related to the bacterial enzyme, 2-hydroxychromene-2-carboxylate (HCCA) isomerase. It shows little sequence similarity to the other members of the GST family.


:

Pssm-ID: 239319 [Multi-domain]  Cd Length: 209  Bit Score: 292.33  E-value: 1.78e-100
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 219842317   6 RTVELFYDVLSPYSWLGFEILCRYQNIWNINLQLRPSLITGIMKDSGNKPPGLLPRKGLYMANDLKLLRHHLQIPIHFPK 85
Cdd:cd03021    1 PKIELYYDVVSPYSYLAFEVLCRYQTAWNVDITYVPVFLGGIMKDSGNKPPIMLPNKAKYMAKDRKRSAEFFGVPIRQPK 80

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 219842317  86 DFLSVmlEKGSLSAMRFLTAVNLEHPE----MLEKASRELWMRVWSRvsvglwessgrtlddfltfprhvfrvmilpppg 161
Cdd:cd03021   81 DFFFM--KKGTLTAQRFLTAISEQHPEstltALEALFREFWVRPWSL--------------------------------- 125

                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 219842317 162 gstvlpvtplsphrlpavfsssqNEDITEPQSILAAAEKAGMSAEQAQGLLEKIATPKVKNQLKETTEAACRYGAFGLPI 241
Cdd:cd03021  126 -----------------------TEPITESQSISVAADKLGGSAEQAEKLLKAASTPEVKNRLKENTDEALKYGAFGLPW 182

                        250       260
                 ....*....|....*....|....*..
gi 219842317 242 TVAHVD-GQTHMLFGSDRMELLAHLLG 267
Cdd:cd03021  183 IVVTNDkGKTEMFFGSDRFEQVADFLG 209
 
Name Accession Description Interval E-value
DsbA_GSTK cd03021
DsbA family, Glutathione (GSH) S-transferase Kappa (GSTK) subfamily; GSTK is a member of the ...
 6-267 1.78e-100

DsbA family, Glutathione (GSH) S-transferase Kappa (GSTK) subfamily; GSTK is a member of the GST family of enzymes which catalyzes the transfer of the thiol of GSH to electrophilic substrates. It is specifically located in the mitochondria and peroxisomes, unlike other members of the canonical GST family, which are mainly cytosolic. The biological substrates of GSTK are not yet known. It is presumed to have a protective role during respiration when large amounts of reactive oxygen species are generated. GSTK has the same general fold as DsbA, consisting of a thioredoxin domain interrupted by an alpha-helical domain and its biological unit is a homodimer. GSTK is closely related to the bacterial enzyme, 2-hydroxychromene-2-carboxylate (HCCA) isomerase. It shows little sequence similarity to the other members of the GST family.


Pssm-ID: 239319 [Multi-domain]  Cd Length: 209  Bit Score: 292.33  E-value: 1.78e-100
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 219842317   6 RTVELFYDVLSPYSWLGFEILCRYQNIWNINLQLRPSLITGIMKDSGNKPPGLLPRKGLYMANDLKLLRHHLQIPIHFPK 85
Cdd:cd03021    1 PKIELYYDVVSPYSYLAFEVLCRYQTAWNVDITYVPVFLGGIMKDSGNKPPIMLPNKAKYMAKDRKRSAEFFGVPIRQPK 80

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 219842317  86 DFLSVmlEKGSLSAMRFLTAVNLEHPE----MLEKASRELWMRVWSRvsvglwessgrtlddfltfprhvfrvmilpppg 161
Cdd:cd03021   81 DFFFM--KKGTLTAQRFLTAISEQHPEstltALEALFREFWVRPWSL--------------------------------- 125

                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 219842317 162 gstvlpvtplsphrlpavfsssqNEDITEPQSILAAAEKAGMSAEQAQGLLEKIATPKVKNQLKETTEAACRYGAFGLPI 241
Cdd:cd03021  126 -----------------------TEPITESQSISVAADKLGGSAEQAEKLLKAASTPEVKNRLKENTDEALKYGAFGLPW 182

                        250       260
                 ....*....|....*....|....*..
gi 219842317 242 TVAHVD-GQTHMLFGSDRMELLAHLLG 267
Cdd:cd03021  183 IVVTNDkGKTEMFFGSDRFEQVADFLG 209
DSBA pfam01323
DSBA-like thioredoxin domain; This family contains a diverse set of proteins with a ...
 7-267 3.75e-53

DSBA-like thioredoxin domain; This family contains a diverse set of proteins with a thioredoxin-like structure pfam00085. This family also includes 2-hydroxychromene-2-carboxylate (HCCA) isomerase enzymes catalyze one step in prokaryotic polyaromatic hydrocarbon (PAH) catabolic pathways. This family also contains members with functions other than HCCA isomerization, such as Kappa family GSTs, whose similarity to HCCA isomerases was not previously recognized. The sequence Swiss:O07298 has been annotated as a dioxygenase but is almost certainly an HCCA isomerase enzyme. Similarly, the sequence Swiss:Q9ZI67 has been annotated as a dehydrogenase, but is most probably also an HCCA isomerase enzyme. In addition, the Rhizobium leguminosarum Swiss:Q52782 protein has been annotated as a putative glycerol-3-phosphate transfer protein, but is also most likely to be an HCCA isomerase enzyme.


Pssm-ID: 426200 [Multi-domain]  Cd Length: 191  Bit Score: 171.46  E-value: 3.75e-53
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 219842317    7 TVELFYDVLSPYSWLGFEILCRYQNIW-NINLQLRPSLITGIMKdSGNKPPGLLPRKGLYMANDLKLLRHHLQIPIHFPK 85
Cdd:pfam01323   1 TVDEFFDFLCPFCYLAKERLEKLAARYgDVKVVYRPFPLAGAKK-IGNVGPSNLPVKLKYMMADLERWAALYGIPLRFPA 79

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 219842317   86 DFLsvmleKGSLSAMRFLTAVNLEHpeMLEKASRELWMRVWSRvsvglwessgrtlddfltfprhvfrvmilpppggstv 165
Cdd:pfam01323  80 NFL-----GNSTRANRLALAAGAEG--LAEKVVRELFNALWGE------------------------------------- 115

                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 219842317  166 lpvtplsphrlpavfsssqNEDITEPQSILAAAEKAGMSAEQaqgLLEKIATPKVKNQLKETTEAACRYGAFGLPITVah 245
Cdd:pfam01323 116 -------------------GAAITDDSVLREVAEKAGLDAEE---FDEFLDSPAVKEAVRENTAAAISLGVFGVPTFV-- 171

                         250       260
                  ....*....|....*....|..
gi 219842317  246 VDGQthMLFGSDRMELLAHLLG 267
Cdd:pfam01323 172 VGGK--MVFGADRLDTLADALA 191
 
Name Accession Description Interval E-value
DsbA_GSTK cd03021
DsbA family, Glutathione (GSH) S-transferase Kappa (GSTK) subfamily; GSTK is a member of the ...
 6-267 1.78e-100

DsbA family, Glutathione (GSH) S-transferase Kappa (GSTK) subfamily; GSTK is a member of the GST family of enzymes which catalyzes the transfer of the thiol of GSH to electrophilic substrates. It is specifically located in the mitochondria and peroxisomes, unlike other members of the canonical GST family, which are mainly cytosolic. The biological substrates of GSTK are not yet known. It is presumed to have a protective role during respiration when large amounts of reactive oxygen species are generated. GSTK has the same general fold as DsbA, consisting of a thioredoxin domain interrupted by an alpha-helical domain and its biological unit is a homodimer. GSTK is closely related to the bacterial enzyme, 2-hydroxychromene-2-carboxylate (HCCA) isomerase. It shows little sequence similarity to the other members of the GST family.


Pssm-ID: 239319 [Multi-domain]  Cd Length: 209  Bit Score: 292.33  E-value: 1.78e-100
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 219842317   6 RTVELFYDVLSPYSWLGFEILCRYQNIWNINLQLRPSLITGIMKDSGNKPPGLLPRKGLYMANDLKLLRHHLQIPIHFPK 85
Cdd:cd03021    1 PKIELYYDVVSPYSYLAFEVLCRYQTAWNVDITYVPVFLGGIMKDSGNKPPIMLPNKAKYMAKDRKRSAEFFGVPIRQPK 80

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 219842317  86 DFLSVmlEKGSLSAMRFLTAVNLEHPE----MLEKASRELWMRVWSRvsvglwessgrtlddfltfprhvfrvmilpppg 161
Cdd:cd03021   81 DFFFM--KKGTLTAQRFLTAISEQHPEstltALEALFREFWVRPWSL--------------------------------- 125

                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 219842317 162 gstvlpvtplsphrlpavfsssqNEDITEPQSILAAAEKAGMSAEQAQGLLEKIATPKVKNQLKETTEAACRYGAFGLPI 241
Cdd:cd03021  126 -----------------------TEPITESQSISVAADKLGGSAEQAEKLLKAASTPEVKNRLKENTDEALKYGAFGLPW 182

                        250       260
                 ....*....|....*....|....*..
gi 219842317 242 TVAHVD-GQTHMLFGSDRMELLAHLLG 267
Cdd:cd03021  183 IVVTNDkGKTEMFFGSDRFEQVADFLG 209
DSBA pfam01323
DSBA-like thioredoxin domain; This family contains a diverse set of proteins with a ...
 7-267 3.75e-53

DSBA-like thioredoxin domain; This family contains a diverse set of proteins with a thioredoxin-like structure pfam00085. This family also includes 2-hydroxychromene-2-carboxylate (HCCA) isomerase enzymes catalyze one step in prokaryotic polyaromatic hydrocarbon (PAH) catabolic pathways. This family also contains members with functions other than HCCA isomerization, such as Kappa family GSTs, whose similarity to HCCA isomerases was not previously recognized. The sequence Swiss:O07298 has been annotated as a dioxygenase but is almost certainly an HCCA isomerase enzyme. Similarly, the sequence Swiss:Q9ZI67 has been annotated as a dehydrogenase, but is most probably also an HCCA isomerase enzyme. In addition, the Rhizobium leguminosarum Swiss:Q52782 protein has been annotated as a putative glycerol-3-phosphate transfer protein, but is also most likely to be an HCCA isomerase enzyme.


Pssm-ID: 426200 [Multi-domain]  Cd Length: 191  Bit Score: 171.46  E-value: 3.75e-53
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 219842317    7 TVELFYDVLSPYSWLGFEILCRYQNIW-NINLQLRPSLITGIMKdSGNKPPGLLPRKGLYMANDLKLLRHHLQIPIHFPK 85
Cdd:pfam01323   1 TVDEFFDFLCPFCYLAKERLEKLAARYgDVKVVYRPFPLAGAKK-IGNVGPSNLPVKLKYMMADLERWAALYGIPLRFPA 79

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 219842317   86 DFLsvmleKGSLSAMRFLTAVNLEHpeMLEKASRELWMRVWSRvsvglwessgrtlddfltfprhvfrvmilpppggstv 165
Cdd:pfam01323  80 NFL-----GNSTRANRLALAAGAEG--LAEKVVRELFNALWGE------------------------------------- 115

                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 219842317  166 lpvtplsphrlpavfsssqNEDITEPQSILAAAEKAGMSAEQaqgLLEKIATPKVKNQLKETTEAACRYGAFGLPITVah 245
Cdd:pfam01323 116 -------------------GAAITDDSVLREVAEKAGLDAEE---FDEFLDSPAVKEAVRENTAAAISLGVFGVPTFV-- 171

                         250       260
                  ....*....|....*....|..
gi 219842317  246 VDGQthMLFGSDRMELLAHLLG 267
Cdd:pfam01323 172 VGGK--MVFGADRLDTLADALA 191
DsbA_HCCA_Iso cd03022
DsbA family, 2-hydroxychromene-2-carboxylate (HCCA) isomerase subfamily; HCCA isomerase is a ...
 8-266 2.04e-25

DsbA family, 2-hydroxychromene-2-carboxylate (HCCA) isomerase subfamily; HCCA isomerase is a glutathione (GSH) dependent enzyme involved in the naphthalene catabolic pathway. It converts HCCA, a hemiketal formed spontaneously after ring cleavage of 1,2-dihydroxynapthalene by a dioxygenase, into cis-o-hydroxybenzylidenepyruvate (cHBPA). This is the fourth reaction in a six-step pathway that converts napthalene into salicylate. HCCA isomerase is unique to bacteria that degrade polycyclic aromatic compounds. It is closely related to the eukaryotic protein, GSH transferase kappa (GSTK).


Pssm-ID: 239320 [Multi-domain]  Cd Length: 192  Bit Score: 99.62  E-value: 2.04e-25
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 219842317   8 VELFYDVLSPYSWLGFE----ILCRYqniwNINLQLRPSLITGIMKDSGNKPPG-LLPRKGLYMANDLKLLRHHLQIPIH 82
Cdd:cd03022    1 IDFYFDFSSPYSYLAHErlpaLAARH----GATVRYRPILLGGVFKATGNVPPAnRPPAKGRYRLRDLERWARRYGIPLR 76

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 219842317  83 FPKDFlsvmlEKGSLSAMRFLTAVNLEHpemlekasrelwmrvwsrvsvglwessgrtlDDFLTFPRHVFRvmilpppgg 162
Cdd:cd03022   77 FPPRF-----PPNTLRAMRAALAAQAEG-------------------------------DAAEAFARAVFR--------- 111

                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 219842317 163 stvlpvtplsphrlpAVFssSQNEDITEPQSILAAAEKAGMSAEQaqgLLEKIATPKVKNQLKETTEAACRYGAFGLPIT 242
Cdd:cd03022  112 ---------------ALW--GEGLDIADPAVLAAVAAAAGLDADE---LLAAADDPAVKAALRANTEEAIARGVFGVPTF 171

                        250       260
                 ....*....|....*....|....
gi 219842317 243 VahVDGQthMLFGSDRMELLAHLL 266
Cdd:cd03022  172 V--VDGE--MFWGQDRLDMLEEAL 191
DsbA_family cd02972
DsbA family; consists of DsbA and DsbA-like proteins, including DsbC, DsbG, glutathione (GSH) ...
 8-49 2.66e-03

DsbA family; consists of DsbA and DsbA-like proteins, including DsbC, DsbG, glutathione (GSH) S-transferase kappa (GSTK), 2-hydroxychromene-2-carboxylate (HCCA) isomerase, an oxidoreductase (FrnE) presumed to be involved in frenolicin biosynthesis, a 27-kDa outer membrane protein, and similar proteins. Members of this family contain a redox active CXXC motif (except GSTK and HCCA isomerase) imbedded in a TRX fold, and an alpha helical insert of about 75 residues (shorter in DsbC and DsbG) relative to TRX. DsbA is involved in the oxidative protein folding pathway in prokaryotes, catalyzing disulfide bond formation of proteins secreted into the bacterial periplasm. DsbC and DsbG function as protein disulfide isomerases and chaperones to correct non-native disulfide bonds formed by DsbA and prevent aggregation of incorrectly folded proteins.


Pssm-ID: 239270 [Multi-domain]  Cd Length: 98  Bit Score: 36.61  E-value: 2.66e-03
                         10        20        30        40
                 ....*....|....*....|....*....|....*....|....
gi 219842317   8 VELFYDVLSPYSWLGFEILCRYQNI--WNINLQLRPSLITGIMK 49
Cdd:cd02972    1 IVEFFDPLCPYCYLFEPELEKLLYAddGGVRVVYRPFPLLGGMP 44
 
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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