Annotations: 4CSA

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	VP30 CTD-like	8052490	3002122	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	CCCH zinc finger-like	8052494	3001741	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	CCCH zinc finger-like	8052494	3001741	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	VP30 CTD-like	8052490	3002122	SCOP2B (2022-06-29)
D [auth E]	SCOP2B Superfamily	VP30 CTD-like	8052490	3002122	SCOP2B (2022-06-29)
D [auth E]	SCOP2B Superfamily	CCCH zinc finger-like	8052494	3001741	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	CCCH zinc finger-like	8052494	3001741	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	VP30 CTD-like	8052490	3002122	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	PF06436	e4csaB2	A: alpha arrays	X: Matrix protein 2-1 core domain (From Topology)	H: Matrix protein 2-1 core domain (From Topology)	T: Matrix protein 2-1 core domain	F: PF06436	ECOD (1.6)
B	PF00642,PF06436	e4csaB1	A: few secondary structure elements	X: CCCH zinc finger	H: CCCH zinc finger (From Topology)	T: CCCH zinc finger	F: PF00642,PF06436	ECOD (1.6)
A	PF06436	e4csaA2	A: alpha arrays	X: Matrix protein 2-1 core domain (From Topology)	H: Matrix protein 2-1 core domain (From Topology)	T: Matrix protein 2-1 core domain	F: PF06436	ECOD (1.6)
A	PF00642,PF06436	e4csaA1	A: few secondary structure elements	X: CCCH zinc finger	H: CCCH zinc finger (From Topology)	T: CCCH zinc finger	F: PF00642,PF06436	ECOD (1.6)
D [auth E]	PF06436	e4csaE2	A: alpha arrays	X: Matrix protein 2-1 core domain (From Topology)	H: Matrix protein 2-1 core domain (From Topology)	T: Matrix protein 2-1 core domain	F: PF06436	ECOD (1.6)
D [auth E]	PF00642,PF06436	e4csaE1	A: few secondary structure elements	X: CCCH zinc finger	H: CCCH zinc finger (From Topology)	T: CCCH zinc finger	F: PF00642,PF06436	ECOD (1.6)
C	PF06436	e4csaC2	A: alpha arrays	X: Matrix protein 2-1 core domain (From Topology)	H: Matrix protein 2-1 core domain (From Topology)	T: Matrix protein 2-1 core domain	F: PF06436	ECOD (1.6)
C	PF00642,PF06436	e4csaC1	A: few secondary structure elements	X: CCCH zinc finger	H: CCCH zinc finger (From Topology)	T: CCCH zinc finger	F: PF00642,PF06436	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	1.20.120.1350	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	Pneumovirus matrix protein 2 (M2), zinc-binding domain	CATH (4.3.0)
A	1.20.120.1350	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	Pneumovirus matrix protein 2 (M2), zinc-binding domain	CATH (4.3.0)
D [auth E]	1.20.120.1350	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	Pneumovirus matrix protein 2 (M2), zinc-binding domain	CATH (4.3.0)
C	1.20.120.1350	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	Pneumovirus matrix protein 2 (M2), zinc-binding domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, D [auth E]	PF06436	Pneumovirus matrix protein 2 (M2) (Pneumovirus_M2)	Pneumovirus matrix protein 2 (M2)	-	Family
A, B, D [auth E]	PF00642	Zinc finger C-x8-C-x5-C-x3-H type (and similar) (zf-CCCH)	Zinc finger C-x8-C-x5-C-x3-H type (and similar)	-	Family
C	PF06436	Pneumovirus matrix protein 2 (M2) (Pneumovirus_M2)	Pneumovirus matrix protein 2 (M2)	-	Family
C	PF00642	Zinc finger C-x8-C-x5-C-x3-H type (and similar) (zf-CCCH)	Zinc finger C-x8-C-x5-C-x3-H type (and similar)	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, D [auth E]	M2-1	structural molecule activity translation regulator activity binding organic cyclic compound binding translation regulator activity, nucleic acid binding translation elongation factor activity nucleic acid binding translation factor activity, RNA binding nucleoside phosphate binding nucleotide binding heterocyclic compound binding small molecule binding cation binding ion binding structural molecule activity translation regulator activity binding organic cyclic compound binding translation regulator activity, nucleic acid binding translation elongation factor activity nucleic acid binding translation factor activity, RNA binding nucleoside phosphate binding nucleotide binding heterocyclic compound binding small molecule binding cation binding ion binding metal ion binding	viral gene expression regulation of biological process regulation of viral process regulation of viral transcription viral process biological regulation viral transcription	host intracellular membrane-bounded organelle host cellular component host intracellular part host cell part host intracellular region cellular anatomical entity host cell nucleus host intracellular organelle virion component intracellular anatomical structure cytoplasm host cell cytoplasm
C	M2-1	structural molecule activity translation regulator activity binding organic cyclic compound binding translation regulator activity, nucleic acid binding translation elongation factor activity nucleic acid binding translation factor activity, RNA binding nucleoside phosphate binding nucleotide binding heterocyclic compound binding small molecule binding cation binding ion binding structural molecule activity translation regulator activity binding organic cyclic compound binding translation regulator activity, nucleic acid binding translation elongation factor activity nucleic acid binding translation factor activity, RNA binding nucleoside phosphate binding nucleotide binding heterocyclic compound binding small molecule binding cation binding ion binding metal ion binding	viral gene expression regulation of biological process regulation of viral process regulation of viral transcription viral process biological regulation viral transcription	host intracellular membrane-bounded organelle host cellular component host intracellular part host cell part host intracellular region cellular anatomical entity host cell nucleus host intracellular organelle virion component intracellular anatomical structure cytoplasm host cell cytoplasm
E [auth G]	5'-D(APGPTPTP*AP)-3'	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, D [auth E]	IPR036855	Zinc finger, CCCH-type superfamily	Homologous Superfamily
A, B, D [auth E]	IPR009452	Pneumovirus matrix 2-1	Family
A, B, D [auth E]	IPR000571	Zinc finger, CCCH-type	Domain
C	IPR036855	Zinc finger, CCCH-type superfamily	Homologous Superfamily
C	IPR009452	Pneumovirus matrix 2-1	Family
C	IPR000571	Zinc finger, CCCH-type	Domain

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 R01GM133198.