Annotations: 9CYX

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth H], B [auth I], F [auth B]	PF22033	Inner capsid protein lambda-1/VP3 (Lamba1_VP3)	Inner capsid protein lambda-1/VP3	The reovirus inner capsid protein lambda-1 displays nucleoside triphosphate phosphohydrolase (NTPase),RNA-5'-triphosphatase (RTPase), and RNA helicase activity and may play a role in the transcription of the virus genome, the unwinding or reannealing ...	The reovirus inner capsid protein lambda-1 displays nucleoside triphosphate phosphohydrolase (NTPase),RNA-5'-triphosphatase (RTPase), and RNA helicase activity and may play a role in the transcription of the virus genome, the unwinding or reannealing of double-stranded RNA during RNA synthesis. Lambda1 is an Orthoreovirus core protein, VP3 is the homologous core protein in Aquareoviruses [1-4].	Domain
C [auth A]	PF21064	Reovirus core-spike protein lambda-2 (L2), N-terminal (Reovirus_L2_N)	Reovirus core-spike protein lambda-2 (L2), N-terminal	Reovirus core-spike protein VP1/lambda-2 (VP1/L2) forms a pentamer that mediates enzymatic reactions in 5' capping of the viral plus-strand transcripts [1]. It forms a hollow cylinder with projecting turrets. Each VP1/L2 monomer consists of eight dom ...	Reovirus core-spike protein VP1/lambda-2 (VP1/L2) forms a pentamer that mediates enzymatic reactions in 5' capping of the viral plus-strand transcripts [1]. It forms a hollow cylinder with projecting turrets. Each VP1/L2 monomer consists of eight domains with the most N-terminal domain at the base of the turret and the most C-terminal domain at the top [2]. This entry represents the N-terminal domain which adopts an alpha/beta topology.	Domain
C [auth A]	PF21063	Reovirus core-spike protein lambda-2 (L2), GTase domain (Reovirus_L2_GTase)	Reovirus core-spike protein lambda-2 (L2), GTase domain	Reovirus core-spike protein VP1/lambda-2 (VP1/L2) forms a pentamer that mediates enzymatic reactions in 5' capping of the viral plus-strand transcripts [1]. It forms a hollow cylinder with projecting turrets. Each VP1/L2 monomer consists of eight dom ...	Reovirus core-spike protein VP1/lambda-2 (VP1/L2) forms a pentamer that mediates enzymatic reactions in 5' capping of the viral plus-strand transcripts [1]. It forms a hollow cylinder with projecting turrets. Each VP1/L2 monomer consists of eight domains with the most N-terminal domain at the base of the turret and the most C-terminal domain at the top. This entry represents the second one, which contains the nucleotide-binding histidine triad (HIT)-like motif from the GTase (guanylyltransferase) domain [2].	Domain
C [auth A]	PF21066	Reovirus core-spike protein lambda-2 (L2), methyltransferase-2 (Reovirus_L2_MT2)	Reovirus core-spike protein lambda-2 (L2), methyltransferase-2	Reovirus core-spike protein VP1/lambda-2 (VP1/L2) forms a pentamer that mediates enzymatic reactions in 5' capping of the viral plus-strand transcripts [1]. It forms a hollow cylinder with projecting turrets. Each VP1/L2 monomer consists of eight dom ...	Reovirus core-spike protein VP1/lambda-2 (VP1/L2) forms a pentamer that mediates enzymatic reactions in 5' capping of the viral plus-strand transcripts [1]. It forms a hollow cylinder with projecting turrets. Each VP1/L2 monomer consists of eight domains with the most N-terminal domain at the base of the turret and the most C-terminal domain at the top. This entry represents the second methyltransferase domain (MT2), which catalyses the last reaction, 2'O-methylation [2].	Domain
C [auth A]	PF21065	Reovirus core-spike protein lambda-2 (L2), methyltransferase-1 (Reovirus_L2_MT1)	Reovirus core-spike protein lambda-2 (L2), methyltransferase-1	Reovirus core-spike protein VP1/lambda-2 (VP1/L2) forms a pentamer that mediates enzymatic reactions in 5' capping of the viral plus-strand transcripts [1]. It forms a hollow cylinder with projecting turrets. Each VP1/L2 monomer consists of eight dom ...	Reovirus core-spike protein VP1/lambda-2 (VP1/L2) forms a pentamer that mediates enzymatic reactions in 5' capping of the viral plus-strand transcripts [1]. It forms a hollow cylinder with projecting turrets. Each VP1/L2 monomer consists of eight domains with the most N-terminal domain at the base of the turret and the most C-terminal domain at the top. This entry represents the methyltransferase-1 domain [2] which adds a methyl group to the N7 of the guanosine added by the GTase [2].	Domain
C [auth A]	PF21060	Reovirus core-spike protein lambda-2 (L2), 6th domain (Reovirus_L2_6th)	Reovirus core-spike protein lambda-2 (L2), 6th domain	Reovirus core-spike protein VP1/lambda-2 (VP1/L2) forms a pentamer that mediates enzymatic reactions in 5' capping of the viral plus-strand transcripts [1]. It forms a hollow cylinder with projecting turrets. Each VP1/L2 monomer consists of eight dom ...	Reovirus core-spike protein VP1/lambda-2 (VP1/L2) forms a pentamer that mediates enzymatic reactions in 5' capping of the viral plus-strand transcripts [1]. It forms a hollow cylinder with projecting turrets. Each VP1/L2 monomer consists of eight domains with the most N-terminal domain at the base of the turret and the most C-terminal domain at the top. This entry represents the sixth domain which, together with the seventh and eighth (Pfam:PF06016) domains forms a three-domain flap at the top of the turret, that may serve as a gate to retard exit of the 5' terminus of the mRNA [2]. This domain has a Ig-like fold, resembling the V of an antibody light chain [2].	Domain
C [auth A]	PF06016	Reovirus core-spike protein lambda-2 (L2), C-terminal (Reovirus_L2_8th)	Reovirus core-spike protein lambda-2 (L2), C-terminal	Reovirus core-spike protein VP1/lambda-2 (VP1/L2) forms a pentamer that mediates enzymatic reactions in 5' capping of the viral plus-strand transcripts [1]. It forms a hollow cylinder with projecting turrets. Each VP1/L2 monomer consists of eight dom ...	Reovirus core-spike protein VP1/lambda-2 (VP1/L2) forms a pentamer that mediates enzymatic reactions in 5' capping of the viral plus-strand transcripts [1]. It forms a hollow cylinder with projecting turrets. Each VP1/L2 monomer consists of eight domains with the most N-terminal domain at the base of the turret and the most C-terminal domain at the top. This entry represents the C-terminal (eighth) domain which, together with the sixth and seventh domains, forms a three-domain flap at the top of the turret, that may serve as a gate to retard exit of the 5' terminus of the mRNA [2]. This domain has a Ig-like, resembling a truncated V region of an antibody light chain.	Domain
C [auth A]	PF21062	Reovirus core-spike protein lambda-2 (L2), ferredoxin-like domain (Reovirus_L2_4th)	Reovirus core-spike protein lambda-2 (L2), ferredoxin-like domain	Reovirus core-spike protein VP1/lambda-2 (VP1/L2) forms a pentamer that mediates enzymatic reactions in 5' capping of the viral plus-strand transcripts [1]. It forms a hollow cylinder with projecting turrets. Each VP1/L2 monomer consists of eight dom ...	Reovirus core-spike protein VP1/lambda-2 (VP1/L2) forms a pentamer that mediates enzymatic reactions in 5' capping of the viral plus-strand transcripts [1]. It forms a hollow cylinder with projecting turrets. Each VP1/L2 monomer consists of eight domains with the most N-terminal domain at the base of the turret and the most C-terminal domain at the top. This entry represents the fourth domain, which adopts a ferredoxin-like fold consisting of four beta-strands protected by alpha-helices that probably functions as a structural support for the three enzyme domains (two methyltransferase and GTase domains) [2].	Domain
C [auth A]	PF21061	Reovirus core-spike protein lambda-2 (L2), 7th domain (Reovirus_L2_7th)	Reovirus core-spike protein lambda-2 (L2), 7th domain	Reovirus core-spike protein VP1/lambda-2 (VP1/L2) forms a pentamer that mediates enzymatic reactions in 5' capping of the viral plus-strand transcripts [1]. It forms a hollow cylinder with projecting turrets. Each VP1/L2 monomer consists of eight dom ...	Reovirus core-spike protein VP1/lambda-2 (VP1/L2) forms a pentamer that mediates enzymatic reactions in 5' capping of the viral plus-strand transcripts [1]. It forms a hollow cylinder with projecting turrets. Each VP1/L2 monomer consists of eight domains with the most N-terminal domain at the base of the turret and the most C-terminal domain at the top. This entry represents the seventh domain which, together with the sixth (Pfam:PF21060) and eighth (Pfam:PF06016) domains forms a three-domain flap at the top of the turret, that may serve as a gate to retard exit of the 5' terminus of the mRNA [2]. This domain has a Ig-like fold, resembling the C region of an antibody light chain [2].	Domain
D [auth Q], E [auth R]	PF03084	Reoviral Sigma1/Sigma2 family (Sigma_1_2)	Reoviral Sigma1/Sigma2 family	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth H], B [auth I], F [auth B]	Lambda 1	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding pyrophosphatase activity ATP hydrolysis activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity ATP-dependent activity nucleic acid conformation isomerase activity isomerase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid helicase activity RNA helicase activity ATP-dependent activity, acting on RNA macromolecular conformation isomerase activity cation binding transition metal ion binding zinc ion binding metal ion binding	7-methylguanosine mRNA capping RNA metabolic process primary metabolic process 7-methylguanosine RNA capping RNA capping gene expression nucleobase-containing compound biosynthetic process macromolecule biosynthetic process mRNA processing mRNA metabolic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process nucleic acid biosynthetic process biosynthetic process 7-methylguanosine mRNA capping RNA metabolic process primary metabolic process 7-methylguanosine RNA capping RNA capping gene expression nucleobase-containing compound biosynthetic process macromolecule biosynthetic process mRNA processing mRNA metabolic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process nucleic acid biosynthetic process biosynthetic process RNA 5'-end processing metabolic process cellular process RNA processing macromolecule metabolic process	viral capsid icosahedral viral capsid virion component viral inner capsid
C [auth A]	Outer capsid protein lambda-2	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding guanylyltransferase activity mRNA guanylyltransferase activity RNA guanylyltransferase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid transferase activity catalytic activity nucleotidyltransferase activity transferase activity, transferring phosphorus-containing groups RNA methyltransferase activity transferase activity, transferring one-carbon groups S-adenosylmethionine-dependent methyltransferase activity mRNA 5'-cap (guanine-N7-)-methyltransferase activity N-methyltransferase activity methyltransferase activity mRNA methyltransferase activity guanyl nucleotide binding GTP binding guanyl ribonucleotide binding	-	viral capsid icosahedral viral capsid virion component viral outer capsid
D [auth Q], E [auth R]	Inner capsid protein sigma-2	-	-	viral capsid icosahedral viral capsid virion component viral inner capsid

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth H], B [auth I], F [auth B]	IPR044949	Inner capsid protein lambda-1/ VP3 superfamily	Homologous Superfamily
A [auth H], B [auth I], F [auth B]	IPR013087	Zinc finger C2H2-type	Domain
A [auth H], B [auth I], F [auth B]	IPR054176	Inner capsid protein lambda-1/VP3	Domain
C [auth A]	IPR048601	Reovirus core-spike protein lambda-2-like, GTase domain	Domain
C [auth A]	IPR048602	Reovirus core-spike protein lambda-2-like, 7th domain	Domain
C [auth A]	IPR048604	Reovirus core-spike protein lambda-2-like, ferredoxin-like domain	Domain
C [auth A]	IPR029063	S-adenosyl-L-methionine-dependent methyltransferase superfamily	Homologous Superfamily
C [auth A]	IPR048598	Reovirus core-spike protein lambda-2-like, first methyltransferase domain	Domain
C [auth A]	IPR048596	Reovirus core-spike protein lambda-2-like, N-terminal domain	Domain
C [auth A]	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
C [auth A]	IPR048603	Reovirus core-spike protein lambda-2-like, 6th domain	Domain
C [auth A]	IPR010311	Reovirus core-spike lambda-2	Family
C [auth A]	IPR048597	Reovirus core-spike protein lambda-2-like, second methyltransferase domain	Domain
C [auth A]	IPR048294	Reovirus core-spike protein lambda-2-like, C-terminal domain	Domain
D [auth Q], E [auth R]	IPR004317	Sigma1/sigma2, reoviral	Family

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.