1FA0
STRUCTURE OF YEAST POLY(A) POLYMERASE BOUND TO MANGANATE AND 3'-DATP
External Resource: Annotation
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
---|---|---|---|---|---|
A | SCOP2B Superfamily | PAP/Archaeal CCA-adding enzyme C-terminal domain-like | 8035235 | 3001147 | SCOP2B (2021-05-27) |
A | SCOP2B Superfamily | Nucleotidyltransferase-like | 8035234 | 3000129 | SCOP2B (2021-05-27) |
A | SCOP2B Superfamily | PAP/OAS1 substrate-binding domain-like | 8035233 | 3000941 | SCOP2B (2021-05-27) |
B | SCOP2B Superfamily | Nucleotidyltransferase-like | 8035234 | 3000129 | SCOP2B (2021-05-27) |
B | SCOP2B Superfamily | PAP/OAS1 substrate-binding domain-like | 8035233 | 3000941 | SCOP2B (2021-05-27) |
B | SCOP2B Superfamily | PAP/Archaeal CCA-adding enzyme C-terminal domain-like | 8035235 | 3001147 | SCOP2B (2021-05-27) |
Domain Annotation: ECOD Classification ECOD Database Homepage
Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
---|---|---|---|---|---|---|---|---|
A | PF04928 | e1fa0A1 | A: alpha arrays | X: HhH/H2TH | H: SAM/DNA-glycosylase | T: PAP/OAS1 substrate-binding domain | F: PF04928 | ECOD (1.6) |
A | PF04926 | e1fa0A2 | A: a+b two layers | X: Alpha-beta plaits | H: PAP/Archaeal CCA-adding enzyme, C-terminal domain (From Topology) | T: PAP/Archaeal CCA-adding enzyme, C-terminal domain | F: PF04926 | ECOD (1.6) |
A | PF20750 | e1fa0A3 | A: a+b three layers | X: Nucleotidyltransferase-like | H: Nucleotidyltransferase (From Topology) | T: Nucleotidyltransferase | F: PF20750 | ECOD (1.6) |
B | PF04928 | e1fa0B1 | A: alpha arrays | X: HhH/H2TH | H: SAM/DNA-glycosylase | T: PAP/OAS1 substrate-binding domain | F: PF04928 | ECOD (1.6) |
B | PF04926 | e1fa0B2 | A: a+b two layers | X: Alpha-beta plaits | H: PAP/Archaeal CCA-adding enzyme, C-terminal domain (From Topology) | T: PAP/Archaeal CCA-adding enzyme, C-terminal domain | F: PF04926 | ECOD (1.6) |
B | PF20750 | e1fa0B3 | A: a+b three layers | X: Nucleotidyltransferase-like | H: Nucleotidyltransferase (From Topology) | T: Nucleotidyltransferase | F: PF20750 | ECOD (1.6) |
Domain Annotation: CATH CATH Database Homepage
Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
---|---|---|---|---|---|---|
A | 3.30.70.590 | Alpha Beta | 2-Layer Sandwich | Alpha-Beta Plaits | Poly(A) polymerase predicted RNA binding domain | CATH (4.3.0) |
A | 3.30.460.10 | Alpha Beta | 2-Layer Sandwich | Beta Polymerase | domain 2 | CATH (4.3.0) |
A | 1.10.1410.10 | Mainly Alpha | Orthogonal Bundle | Poly(a)-polymerase, middle domain | CATH (4.3.0) | |
B | 3.30.70.590 | Alpha Beta | 2-Layer Sandwich | Alpha-Beta Plaits | Poly(A) polymerase predicted RNA binding domain | CATH (4.3.0) |
B | 3.30.460.10 | Alpha Beta | 2-Layer Sandwich | Beta Polymerase | domain 2 | CATH (4.3.0) |
B | 1.10.1410.10 | Mainly Alpha | Orthogonal Bundle | Poly(a)-polymerase, middle domain | CATH (4.3.0) |
Protein Family Annotation Pfam Database Homepage
Chains | Accession | Name | Description | Comments | Source |
---|---|---|---|---|---|
PF04926 | Poly(A) polymerase predicted RNA binding domain (PAP_RNA-bind) | Poly(A) polymerase predicted RNA binding domain | Based on its similarity structurally to the RNA recognition motif this domain is thought to be RNA binding [1]. | Domain | |
PF04928 | Poly(A) polymerase central domain (PAP_central) | Poly(A) polymerase central domain | In eukaryotes, polyadenylation of pre-mRNA plays an essential role in the initiation step of protein synthesis, as well as in the export and stability of mRNAs. Poly(A) polymerase, the enzyme at the heart of the polyadenylation machinery, is a templa ... | Domain | |
PF01909 | Nucleotidyltransferase domain (NTP_transf_2) | Nucleotidyltransferase domain | Members of this family belong to a large family of nucleotidyltransferases [1]. This family includes kanamycin nucleotidyltransferase (KNTase) which is a plasmid-coded enzyme responsible for some types of bacterial resistance to aminoglycosides. KNTa ... | Domain |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
InterPro: Protein Family Classification InterPro Database Homepage
Chains | Accession | Name | Type |
---|---|---|---|
IPR007010 | Poly(A) polymerase, RNA-binding domain | Domain | |
IPR011068 | Nucleotidyltransferase, class I-like, C-terminal | Homologous Superfamily | |
IPR007012 | Poly(A) polymerase, central domain | Domain | |
IPR014492 | Poly(A) polymerase | Family | |
IPR043519 | Nucleotidyltransferase superfamily | Homologous Superfamily | |
IPR048840 | Poly(A) polymerase, nucleotidyltransferase domain | Domain |
Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage
Chains | Enzyme Name | Description | Catalytic Residues |
---|---|---|---|
polynucleotide adenylyltransferase M-CSA #796 | Poly(A) polymerase (PAP) catalyses the addition of a poly-adenosine tail to almost all eukaryotic mRNAs. This poly(A) tail has numerous functions in eukaryotes: it facilitates transport of the mRNA from the nucleus, regulates mRNA stability, and increases the efficiency of translation. Poly(A) tails are added to mRNA by a multiprotein complex that recognises the polyadenylation signal, cleaves the precursor mRNA, and adds the additional nucleotides. The poly(A) polymerase component retains its polymerase activity when isolated from the holoenzyme assembly and will progressively add long stretches of adenosine nucleotides to an RNA primer in vitro. Across eukaryotes, it appears the catalytic part of the enzyme resides in the NTD while regulation occurs in the CTD. | Defined by 6 residues: SER:A-89ASP:A-100ASP:A-102ASP:A-154LYS:A-215TYR:A-224 | EC: 2.7.7.19 (PDB Primary Data) |