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Conserved domains on  [gi|239938927|sp|Q9H0N5|]
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RecName: Full=Pterin-4-alpha-carbinolamine dehydratase 2; Short=PHS 2; AltName: Full=4-alpha-hydroxy-tetrahydropterin dehydratase 2; AltName: Full=DcoH-like protein DCoHm; AltName: Full=Dimerization cofactor of hepatocyte nuclear factor 1 from muscle; AltName: Full=HNF-1-alpha dimerization cofactor

Protein Classification

4a-hydroxytetrahydrobiopterin dehydratase( domain architecture ID 10097041)

4a-hydroxytetrahydrobiopterin dehydratase catalyzes the conversion from (6R)-6-(L-erythro-1,2-dihydroxypropyl)-5,6,7,8-tetrahydro-4a-hydroxypterin to (6R)-6-(L-erythro-1,2-dihydroxypropyl)-7,8-dihydro-6H-pterin in tetrahydrobiopterin biosynthesis

Graphical summary

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List of domain hits

 Name Accession Description Interval E-value
PCD_DCoH_subfamily_b cd00914
PCD_DCoH: The bifunctional protein pterin-4alpha-carbinolamine dehydratase (PCD), also known ...
 51-126 5.59e-51

PCD_DCoH: The bifunctional protein pterin-4alpha-carbinolamine dehydratase (PCD), also known as DCoH (dimerization cofactor of hepatocyte nuclear factor-1), is both a transcription activator and a metabolic enzyme. DCoH stimulates gene expression by associating with specific DNA binding proteins such as HNF-1alpha (hepatocyte nuclear factor-1) and Xenopus enhancer of rudimentary homologue (XERH). DCoH also catalyzes the dehydration of 4alpha- hydroxy- tetrahydrobiopterin (4alpha-OH-BH4) to quinoiddihydrobiopterin, a percursor of the phenylalanine hydroxylase cofactor BH4 (tetrahydrobiopterin). The DCoH homodimer has a saddle-shaped structure similar to that of TBP (TATA binding protein). Two DCoH proteins have been identifed in humans: DCoH1 and DCoH2. Mutations in human DCoH1 cause hyperphenylalaninemia. Loss of enzymic activity of DCoH in humans is associated with the depigmentation disorder vitiligo. DCoH1 has been reported to be overexpessed in colon cancer carcinomas and in malignant melanomas.


:

Pssm-ID: 238456  Cd Length: 76  Bit Score: 156.23  E-value: 5.59e-51
                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 239938927  51 GWSELSERDAIYKEFSFHNFNQAFGFMSRVALQAEKMNHHPEWFNVYNKVQITLTSHDCGELTKKDVKLAKFIEKA 126
Cdd:cd00914    1 GWTLVDGRDAIHKSFKFKDFNEAFGFMTRVALEAEKMNHHPEWFNVYNKVDITLTTHDAGGLTERDIKLAKFIEKA 76
 
Name Accession Description Interval E-value
PCD_DCoH_subfamily_b cd00914
PCD_DCoH: The bifunctional protein pterin-4alpha-carbinolamine dehydratase (PCD), also known ...
 51-126 5.59e-51

PCD_DCoH: The bifunctional protein pterin-4alpha-carbinolamine dehydratase (PCD), also known as DCoH (dimerization cofactor of hepatocyte nuclear factor-1), is both a transcription activator and a metabolic enzyme. DCoH stimulates gene expression by associating with specific DNA binding proteins such as HNF-1alpha (hepatocyte nuclear factor-1) and Xenopus enhancer of rudimentary homologue (XERH). DCoH also catalyzes the dehydration of 4alpha- hydroxy- tetrahydrobiopterin (4alpha-OH-BH4) to quinoiddihydrobiopterin, a percursor of the phenylalanine hydroxylase cofactor BH4 (tetrahydrobiopterin). The DCoH homodimer has a saddle-shaped structure similar to that of TBP (TATA binding protein). Two DCoH proteins have been identifed in humans: DCoH1 and DCoH2. Mutations in human DCoH1 cause hyperphenylalaninemia. Loss of enzymic activity of DCoH in humans is associated with the depigmentation disorder vitiligo. DCoH1 has been reported to be overexpessed in colon cancer carcinomas and in malignant melanomas.


Pssm-ID: 238456  Cd Length: 76  Bit Score: 156.23  E-value: 5.59e-51
                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 239938927  51 GWSELSERDAIYKEFSFHNFNQAFGFMSRVALQAEKMNHHPEWFNVYNKVQITLTSHDCGELTKKDVKLAKFIEKA 126
Cdd:cd00914    1 GWTLVDGRDAIHKSFKFKDFNEAFGFMTRVALEAEKMNHHPEWFNVYNKVDITLTTHDAGGLTERDIKLAKFIEKA 76
phhB PRK00823
pterin-4-alpha-carbinolamine dehydratase; Validated
 31-128 1.79e-42

pterin-4-alpha-carbinolamine dehydratase; Validated


Pssm-ID: 234845  Cd Length: 97  Bit Score: 135.35  E-value: 1.79e-42
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 239938927  31 GTHRLTAEERNQAILDLkaAGWSELSERDAIYKEFSFHNFNQAFGFMSRVALQAEKMNHHPEWFNVYNKVQITLTSHDCG 110
Cdd:PRK00823   2 MAEKLSDEEIAELLPQL--PGWTLVGDRDAIERTFKFKNFNEAFAFMNRVAEIAEEEDHHPDWFNVYNRVTVTLTTHDAG 79

                         90
                 ....*....|....*...
gi 239938927 111 ELTKKDVKLAKFIEKAAA 128
Cdd:PRK00823  80 GLTENDFILAAKIDALAG 97
Pterin_4a pfam01329
Pterin 4 alpha carbinolamine dehydratase; Pterin 4 alpha carbinolamine dehydratase is also ...
 35-125 1.56e-39

Pterin 4 alpha carbinolamine dehydratase; Pterin 4 alpha carbinolamine dehydratase is also known as DCoH (dimerization cofactor of hepatocyte nuclear factor 1-alpha).


Pssm-ID: 460161  Cd Length: 88  Bit Score: 127.59  E-value: 1.56e-39
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 239938927   35 LTAEERNQAILDLKaaGWsELSERDAIYKEFSFHNFNQAFGFMSRVALQAEKMNHHPEWFNVYNKVQITLTSHDCGELTK 114
Cdd:pfam01329   1 LTEEEIEAALAELP--GW-KLGDGGALERTFKFKDFKEAIAFVNRVALLAEAEGHHPDITNVYNKVTVTLTTHDAGGLTE 77

                          90
                  ....*....|.
gi 239938927  115 KDVKLAKFIEK 125
Cdd:pfam01329  78 NDFILAAKIDE 88
PhhB COG2154
Pterin-4a-carbinolamine dehydratase [Coenzyme transport and metabolism];
32-130 3.51e-37

Pterin-4a-carbinolamine dehydratase [Coenzyme transport and metabolism];


Pssm-ID: 441757  Cd Length: 99  Bit Score: 121.85  E-value: 3.51e-37
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 239938927  32 THRLTAEERNQAILDLKaaGWSElsERDAIYKEFSFHNFNQAFGFMSRVALQAEKMNHHPEWFNVYNKVQITLTSHDCGE 111
Cdd:COG2154    3 EPPLTDEEIAAALAELP--GWEL--EDGALERTFKFKDFAEALAFVNRVAELAEAEDHHPDISNRYNRVTVTLTTHDAGG 78

                         90
                 ....*....|....*....
gi 239938927 112 LTKKDVKLAKFIEKAAASV 130
Cdd:COG2154   79 LTENDFILAAKIDALAAAL 97
 
Name Accession Description Interval E-value
PCD_DCoH_subfamily_b cd00914
PCD_DCoH: The bifunctional protein pterin-4alpha-carbinolamine dehydratase (PCD), also known ...
 51-126 5.59e-51

PCD_DCoH: The bifunctional protein pterin-4alpha-carbinolamine dehydratase (PCD), also known as DCoH (dimerization cofactor of hepatocyte nuclear factor-1), is both a transcription activator and a metabolic enzyme. DCoH stimulates gene expression by associating with specific DNA binding proteins such as HNF-1alpha (hepatocyte nuclear factor-1) and Xenopus enhancer of rudimentary homologue (XERH). DCoH also catalyzes the dehydration of 4alpha- hydroxy- tetrahydrobiopterin (4alpha-OH-BH4) to quinoiddihydrobiopterin, a percursor of the phenylalanine hydroxylase cofactor BH4 (tetrahydrobiopterin). The DCoH homodimer has a saddle-shaped structure similar to that of TBP (TATA binding protein). Two DCoH proteins have been identifed in humans: DCoH1 and DCoH2. Mutations in human DCoH1 cause hyperphenylalaninemia. Loss of enzymic activity of DCoH in humans is associated with the depigmentation disorder vitiligo. DCoH1 has been reported to be overexpessed in colon cancer carcinomas and in malignant melanomas.


Pssm-ID: 238456  Cd Length: 76  Bit Score: 156.23  E-value: 5.59e-51
                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 239938927  51 GWSELSERDAIYKEFSFHNFNQAFGFMSRVALQAEKMNHHPEWFNVYNKVQITLTSHDCGELTKKDVKLAKFIEKA 126
Cdd:cd00914    1 GWTLVDGRDAIHKSFKFKDFNEAFGFMTRVALEAEKMNHHPEWFNVYNKVDITLTTHDAGGLTERDIKLAKFIEKA 76
phhB PRK00823
pterin-4-alpha-carbinolamine dehydratase; Validated
 31-128 1.79e-42

pterin-4-alpha-carbinolamine dehydratase; Validated


Pssm-ID: 234845  Cd Length: 97  Bit Score: 135.35  E-value: 1.79e-42
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 239938927  31 GTHRLTAEERNQAILDLkaAGWSELSERDAIYKEFSFHNFNQAFGFMSRVALQAEKMNHHPEWFNVYNKVQITLTSHDCG 110
Cdd:PRK00823   2 MAEKLSDEEIAELLPQL--PGWTLVGDRDAIERTFKFKNFNEAFAFMNRVAEIAEEEDHHPDWFNVYNRVTVTLTTHDAG 79

                         90
                 ....*....|....*...
gi 239938927 111 ELTKKDVKLAKFIEKAAA 128
Cdd:PRK00823  80 GLTENDFILAAKIDALAG 97
Pterin_4a pfam01329
Pterin 4 alpha carbinolamine dehydratase; Pterin 4 alpha carbinolamine dehydratase is also ...
 35-125 1.56e-39

Pterin 4 alpha carbinolamine dehydratase; Pterin 4 alpha carbinolamine dehydratase is also known as DCoH (dimerization cofactor of hepatocyte nuclear factor 1-alpha).


Pssm-ID: 460161  Cd Length: 88  Bit Score: 127.59  E-value: 1.56e-39
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 239938927   35 LTAEERNQAILDLKaaGWsELSERDAIYKEFSFHNFNQAFGFMSRVALQAEKMNHHPEWFNVYNKVQITLTSHDCGELTK 114
Cdd:pfam01329   1 LTEEEIEAALAELP--GW-KLGDGGALERTFKFKDFKEAIAFVNRVALLAEAEGHHPDITNVYNKVTVTLTTHDAGGLTE 77

                          90
                  ....*....|.
gi 239938927  115 KDVKLAKFIEK 125
Cdd:pfam01329  78 NDFILAAKIDE 88
PCD_DCoH cd00488
PCD_DCoH: The bifunctional protein pterin-4alpha-carbinolamine dehydratase (PCD), also known ...
 51-126 1.38e-37

PCD_DCoH: The bifunctional protein pterin-4alpha-carbinolamine dehydratase (PCD), also known as DCoH (dimerization cofactor of hepatocyte nuclear factor-1), is both a transcription activator and a metabolic enzyme. DCoH stimulates gene expression by associating with specific DNA binding proteins such as HNF-1alpha (hepatocyte nuclear factor-1) and Xenopus enhancer of rudimentary homologue (XERH). DCoH also catalyzes the dehydration of 4alpha- hydroxy- tetrahydrobiopterin (4alpha-OH-BH4) to quinoiddihydrobiopterin, a percursor of the phenylalanine hydroxylase cofactor BH4 (tetrahydrobiopterin). The DCoH homodimer has a saddle-shaped structure similar to that of TBP (TATA binding protein). Two DCoH proteins have been identifed in humans: DCoH1 and DCoH2. Mutations in human DCoH1 cause hyperphenylalaninemia. Loss of enzymic activity of DCoH in humans is associated with the depigmentation disorder vitiligo. DCoH1 has been reported to be overexpessed in colon cancer carcinomas and in malignant melanomas.


Pssm-ID: 238272  Cd Length: 75  Bit Score: 122.24  E-value: 1.38e-37
                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 239938927  51 GWsELSERDAIYKEFSFHNFNQAFGFMSRVALQAEKMNHHPEWFNVYNKVQITLTSHDCGELTKKDVKLAKFIEKA 126
Cdd:cd00488    1 GW-ELADGDALERTFKFKDFKEAIAFVNRVAELAEALNHHPDISNVYNKVTVTLTTHDAGGLTENDFILAAKIDAL 75
PhhB COG2154
Pterin-4a-carbinolamine dehydratase [Coenzyme transport and metabolism];
32-130 3.51e-37

Pterin-4a-carbinolamine dehydratase [Coenzyme transport and metabolism];


Pssm-ID: 441757  Cd Length: 99  Bit Score: 121.85  E-value: 3.51e-37
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 239938927  32 THRLTAEERNQAILDLKaaGWSElsERDAIYKEFSFHNFNQAFGFMSRVALQAEKMNHHPEWFNVYNKVQITLTSHDCGE 111
Cdd:COG2154    3 EPPLTDEEIAAALAELP--GWEL--EDGALERTFKFKDFAEALAFVNRVAELAEAEDHHPDISNRYNRVTVTLTTHDAGG 78

                         90
                 ....*....|....*....
gi 239938927 112 LTKKDVKLAKFIEKAAASV 130
Cdd:COG2154   79 LTENDFILAAKIDALAAAL 97
PCD_DCoH_subfamily_a cd00913
PCD_DCoH: The bifunctional protein pterin-4alpha-carbinolamine dehydratase (PCD), also known ...
 51-125 6.26e-14

PCD_DCoH: The bifunctional protein pterin-4alpha-carbinolamine dehydratase (PCD), also known as DCoH (dimerization cofactor of hepatocyte nuclear factor-1), is both a transcription activator and a metabolic enzyme. DCoH stimulates gene expression by associating with specific DNA binding proteins such as HNF-1alpha (hepatocyte nuclear factor-1) and Xenopus enhancer of rudimentary homologue (XERH). DCoH also catalyzes the dehydration of 4alpha- hydroxy- tetrahydrobiopterin (4alpha-OH-BH4) to quinoiddihydrobiopterin, a percursor of the phenylalanine hydroxylase cofactor BH4 (tetrahydrobiopterin). The DCoH homodimer has a saddle-shaped structure similar to that of TBP (TATA binding protein).


Pssm-ID: 238455  Cd Length: 76  Bit Score: 62.25  E-value: 6.26e-14
                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 239938927  51 GWsELSERD-AIYKEFSFHNFNQAFGFMSRVALQAEKMNHHPEWFNVYNKVQITLTSHDCGELTKKDVKLAKFIEK 125
Cdd:cd00913    1 GW-ELADDGlKLERTFRFKNFVEALEFVNAVGEIAEAEGHHPDLSLGWGRVRVTWWTHSIGGLSENDFIMAAKIDA 75
 
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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