1DQS
CRYSTAL STRUCTURE OF DEHYDROQUINATE SYNTHASE (DHQS) COMPLEXED WITH CARBAPHOSPHONATE, NAD+ AND ZN2+
External Resource: Annotation
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
Chains | Domain Info | Class | Fold | Superfamily | Family | Domain | Species | Provenance Source (Version) |
---|---|---|---|---|---|---|---|---|
A | d1dqsa_ | Multi-domain proteins (alpha and beta) | Dehydroquinate synthase-like | Dehydroquinate synthase-like | Dehydroquinate synthase, DHQS | Dehydroquinate synthase, DHQS | (Aspergillus nidulans ) [TaxId: 162425 ], | SCOPe (2.08) |
B | d1dqsb_ | Multi-domain proteins (alpha and beta) | Dehydroquinate synthase-like | Dehydroquinate synthase-like | Dehydroquinate synthase, DHQS | Dehydroquinate synthase, DHQS | (Aspergillus nidulans ) [TaxId: 162425 ], | SCOPe (2.08) |
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
Domain Annotation: ECOD Classification ECOD Database Homepage
Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
---|---|---|---|---|---|---|---|---|
A | DHQ_synthase_C | e1dqsA1 | A: alpha bundles | X: alpha-helical domain in dehydroquinate synthase-like enzymes (From Topology) | H: alpha-helical domain in dehydroquinate synthase-like enzymes (From Topology) | T: alpha-helical domain in dehydroquinate synthase-like enzymes | F: DHQ_synthase_C | ECOD (1.6) |
A | DHQ_synthase_N | e1dqsA2 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: Rossmann-like domain in dehydroquinate synthase-like enzymes | F: DHQ_synthase_N | ECOD (1.6) |
B | DHQ_synthase_C | e1dqsB1 | A: alpha bundles | X: alpha-helical domain in dehydroquinate synthase-like enzymes (From Topology) | H: alpha-helical domain in dehydroquinate synthase-like enzymes (From Topology) | T: alpha-helical domain in dehydroquinate synthase-like enzymes | F: DHQ_synthase_C | ECOD (1.6) |
B | DHQ_synthase_N | e1dqsB2 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: Rossmann-like domain in dehydroquinate synthase-like enzymes | F: DHQ_synthase_N | ECOD (1.6) |
Domain Annotation: CATH CATH Database Homepage
Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
---|---|---|---|---|---|---|
A | 3.40.50.1970 | Alpha Beta | 3-Layer(aba) Sandwich | Rossmann fold | CATH (4.3.0) | |
A | 1.20.1090.10 | Mainly Alpha | Up-down Bundle | Dehydroquinate synthase-like, alpha domain | Dehydroquinate synthase-like - alpha domain | CATH (4.3.0) |
B | 3.40.50.1970 | Alpha Beta | 3-Layer(aba) Sandwich | Rossmann fold | CATH (4.3.0) | |
B | 1.20.1090.10 | Mainly Alpha | Up-down Bundle | Dehydroquinate synthase-like, alpha domain | Dehydroquinate synthase-like - alpha domain | CATH (4.3.0) |
Protein Family Annotation Pfam Database Homepage
Chains | Accession | Name | Description | Comments | Source |
---|---|---|---|---|---|
PF01761 | 3-dehydroquinate synthase (DHQ_synthase) | 3-dehydroquinate synthase | The 3-dehydroquinate synthase EC:4.6.1.3 domain is present in isolation in various bacterial 3-dehydroquinate synthases and also present as a domain in the pentafunctional AROM polypeptide Swiss:P07547 [2]. 3-dehydroquinate (DHQ) synthase catalyses ... | Domain |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
InterPro: Protein Family Classification InterPro Database Homepage
Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage
Chains | Enzyme Name | Description | Catalytic Residues |
---|---|---|---|
3-dehydroquinate synthase M-CSA #59 | Dehydroquinate synthase (DHQS) has long been regarded as a catalytic wonder due to its ability to perform several consecutive chemical reactions in one active site. DHQS performs the second step in the shikimate pathway, which is required for the synthesis of aromatic compounds in bacteria, microbial eukaryotes and plants. The fold of the C-terminal domain of DHQS shows no detectable structural relationships to known structures. The active site is located between the two domains. The C-terminal domain contains most of the residues involved in catalysis and in substrate and Zn(2+) binding. The crystal structure of DHQS shows an active site which possesses a variety of interactions between metal, dinucleotide, substrate analogue and protein. | Defined by 10 residues: LYS:A-152GLU:A-194LYS:A-250GLU:A-260ARG:A-264ASN:A-268HIS:A-271HIS:A-275HIS:A-287ARG:B-130 | EC: 4.6.1.3 (PDB Primary Data) |