1SZD
Structural basis for nicotinamide cleavage and ADP-ribose transfer by NAD+-dependent Sir2 histone/protein deacetylases
External Resource: Annotation
- Domain Annotation: SCOP/SCOPe Classification
- Domain Annotation: SCOP2 Classification
- Domain Annotation: ECOD Classification
- Domain Annotation: CATH
- Protein Family Annotation
- Gene Ontology: Gene Product Annotation
- InterPro: Protein Family Classification
- Protein Modification Annotation
- Structure Motif: Primary M-CSA Annotation
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
Chains | Domain Info | Class | Fold | Superfamily | Family | Domain | Species | Provenance Source (Version) |
---|---|---|---|---|---|---|---|---|
A | d1szda1 | Alpha and beta proteins (a/b) | DHS-like NAD/FAD-binding domain | DHS-like NAD/FAD-binding domain | Sir2 family of transcriptional regulators | Hst2 | baker's yeast (Saccharomyces cerevisiae ) [TaxId: 4932 ], | SCOPe (2.08) |
A | d1szda2 | Artifacts | Tags | Tags | Tags | N-terminal Tags | baker's yeast (Saccharomyces cerevisiae ) [TaxId: 4932 ], | 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 | PF02146 | e1szdA3 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Rossmann-related | T: DHS-like NAD/FAD-binding domain | F: PF02146 | ECOD (1.6) |
A | F_UNCLASSIFIED | e1szdA1 | A: few secondary structure elements | X: Rubredoxin-like | H: Rubredoxin-related | T: Rubredoxin-related | F: F_UNCLASSIFIED | ECOD (1.6) |
Domain Annotation: CATH CATH Database Homepage
Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
---|---|---|---|---|---|---|
A | 3.40.50.1220 | Alpha Beta | 3-Layer(aba) Sandwich | Rossmann fold | TPP-binding domain | CATH (4.3.0) |
A | 3.30.1600.10 | Alpha Beta | 2-Layer Sandwich | SIR2/SIRT2 'Small Domain' | SIR2/SIRT2 'Small Domain' | CATH (4.3.0) |
Protein Family Annotation Pfam Database Homepage
Chains | Accession | Name | Description | Comments | Source |
---|---|---|---|---|---|
PF02146 | Sir2 family (SIR2) | Sir2 family | - | Family | |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
InterPro: Protein Family Classification InterPro Database Homepage
Chains | Accession | Name | Type |
---|---|---|---|
IPR026590 | Sirtuin family, catalytic core domain | Domain | |
IPR050134 | NAD-dependent sirtuin protein deacylases | Family | |
IPR017328 | Sirtuin, class I | Family | |
IPR026591 | Sirtuin, catalytic core small domain superfamily | Homologous Superfamily | |
IPR003000 | Sirtuin family | Family | |
IPR029035 | DHS-like NAD/FAD-binding domain superfamily | Homologous Superfamily | |
IPR009072 | Histone-fold | Homologous Superfamily | |
IPR035425 | CENP-T/Histone H4, histone fold | Domain | |
IPR001951 | Histone H4 | Family | |
IPR019809 | Histone H4, conserved site | Conserved Site |
Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage
Chains | Enzyme Name | Description | Catalytic Residues |
---|---|---|---|
histone/protein deacetylase M-CSA #240 | hST2, isolated from Saccharomyces cerevisiae, is a class III histone deacetylase (HDAC), though it also deacetylates other proteins. It belongs to the sirtuin (Sir2) family and catalyses the deacetylation of lysine residues from proteins using NAD+ as a co-substrate. The reaction produces a deacetylated lysine, nicotinamide and 2'-O-acetyl ADP-ribose. hST2 play roles in gene silencing and mediating life span extension. hST2 is of interest because its homologues in humans are potential drug targets for diseases associated with ageing, such as type-II diabetes, and Alzheimer's and Parkinson's diseases. | Defined by 7 residues: PRO:A-45 [auth A-42]ASP:A-46 [auth A-43]PHE:A-47 [auth A-44]ARG:A-48 [auth A-45]ASN:A-119 [auth A-116]ASP:A-121 [auth A-118]HIS:A-138 [auth A-135] | EC: 3.5.1 (PDB Primary Data) |