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4C6M

Crystal structure of the dihydroorotase domain of human CAD bound to the inhibitor fluoroorotate at pH 7.0

Functional Information from GO Data
ChainGOidnamespacecontents
A0016787molecular_functionhydrolase activity
A0016810molecular_functionhydrolase activity, acting on carbon-nitrogen (but not peptide) bonds
A0016812molecular_functionhydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in cyclic amides
Functional Information from PDB Data
site_idAC1
Number of Residues6
DetailsBINDING SITE FOR RESIDUE ZN A 2823
ChainResidue
AKCX1556
AHIS1590
AHIS1614
AHOH2076
AZN2824
AFOT2827

site_idAC2
Number of Residues6
DetailsBINDING SITE FOR RESIDUE ZN A 2824
ChainResidue
AASP1686
AHOH2076
AZN2823
AHIS1471
AHIS1473
AKCX1556

site_idAC3
Number of Residues4
DetailsBINDING SITE FOR RESIDUE ZN A 2825
ChainResidue
AHIS1471
ACYS1613
AGLU1637
AHOH2075

site_idAC4
Number of Residues8
DetailsBINDING SITE FOR RESIDUE FMT A 2826
ChainResidue
APRO1586
AILE1587
AARG1608
ASER1609
AVAL1610
AHIS1611
AHOH2190
AHOH2194

site_idAC5
Number of Residues15
DetailsBINDING SITE FOR RESIDUE FOT A 2827
ChainResidue
AHIS1473
AARG1475
AASN1505
ATYR1558
AHIS1590
AVAL1660
AARG1661
AALA1688
AHIS1690
APRO1702
AGLY1703
AHOH2076
AHOH2147
AHOH2385
AZN2823

site_idAC6
Number of Residues4
DetailsBINDING SITE FOR RESIDUE FMT A 2828
ChainResidue
AHIS1734
AHIS1734
AARG1737
AARG1737

Functional Information from PROSITE/UniProt
site_idPS00482
Number of Residues9
DetailsDIHYDROOROTASE_1 Dihydroorotase signature 1. DVHVHLReP
ChainResidueDetails
AASP1469-PRO1477

site_idPS00483
Number of Residues12
DetailsDIHYDROOROTASE_2 Dihydroorotase signature 2. ASDhAPHtleeK
ChainResidueDetails
AALA1684-LYS1695

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues1
DetailsActive site: {"description":"For DHOase activity","evidences":[{"source":"UniProtKB","id":"P05020","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues7
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"24332717","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"4C6D","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues5
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"24332717","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"4C6Q","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues1
DetailsBinding site: {"description":"via carbamate group","evidences":[{"source":"PubMed","id":"24332717","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"4C6D","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues1
DetailsModified residue: {"description":"N6-carboxylysine","evidences":[{"source":"PubMed","id":"24332717","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

246333

PDB entries from 2025-12-17

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