1PK3

Scm SAM domain

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

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1pk3a1	All alpha proteins	SAM domain-like	SAM/Pointed domain	SAM (sterile alpha motif) domain	Polycomb protein Scm	fruit fly (Drosophila melanogaster ) [TaxId: 7227 ],	SCOPe (2.08)
A	d1pk3a2	Artifacts	Tags	Tags	Tags	N-terminal Tags	fruit fly (Drosophila melanogaster ) [TaxId: 7227 ],	SCOPe (2.08)
B	d1pk3b_	All alpha proteins	SAM domain-like	SAM/Pointed domain	automated matches	automated matches	fruit fly (Drosophila melanogaster ) [TaxId: 7227 ],	SCOPe (2.08)
C	d1pk3c2	All alpha proteins	SAM domain-like	SAM/Pointed domain	automated matches	automated matches	fruit fly (Drosophila melanogaster ) [TaxId: 7227 ],	SCOPe (2.08)
C	d1pk3c3	Artifacts	Tags	Tags	Tags	N-terminal Tags	fruit fly (Drosophila melanogaster ) [TaxId: 7227 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	SAM (sterile alpha motif) domain	8019910	4001022	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	SAM/Pointed domain	8032290	3000479	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	SAM/Pointed domain	8032290	3000479	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	SAM/Pointed domain	8032290	3000479	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)
A	SAM_1_1	e1pk3A1	A: alpha arrays	X: HhH/H2TH	H: SAM/DNA-glycosylase	T: SAM domain-like	F: SAM_1_1	ECOD (1.6)
B	SAM_1_1	e1pk3B1	A: alpha arrays	X: HhH/H2TH	H: SAM/DNA-glycosylase	T: SAM domain-like	F: SAM_1_1	ECOD (1.6)
C	SAM_1_1	e1pk3C1	A: alpha arrays	X: HhH/H2TH	H: SAM/DNA-glycosylase	T: SAM domain-like	F: SAM_1_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.150.50	Mainly Alpha	Orthogonal Bundle	DNA polymerase	domain 1	CATH (4.3.0)
B	1.10.150.50	Mainly Alpha	Orthogonal Bundle	DNA polymerase	domain 1	CATH (4.3.0)
C	1.10.150.50	Mainly Alpha	Orthogonal Bundle	DNA polymerase	domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF00536	SAM domain (Sterile alpha motif) (SAM_1)	SAM domain (Sterile alpha motif)	It has been suggested that SAM is an evolutionarily conserved protein binding domain that is involved in the regulation of numerous developmental processes in diverse eukaryotes. The SAM domain can potentially function as a protein interaction module ...	It has been suggested that SAM is an evolutionarily conserved protein binding domain that is involved in the regulation of numerous developmental processes in diverse eukaryotes. The SAM domain can potentially function as a protein interaction module through its ability to homo- and heterooligomerise with other SAM domains.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	Sex comb on midleg CG9495-PA	protein binding binding histone binding chromatin binding protein-containing complex binding PRC1 complex binding sequence-specific DNA binding DNA binding organic cyclic compound binding nucleic acid binding cation binding transition metal ion binding zinc ion binding ion binding protein binding binding histone binding chromatin binding protein-containing complex binding PRC1 complex binding sequence-specific DNA binding DNA binding organic cyclic compound binding nucleic acid binding cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule binding identical protein binding	regulation of cellular process cellular biosynthetic process negative regulation of biological process RNA metabolic process negative regulation of cellular metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process regulation of cellular process cellular biosynthetic process negative regulation of biological process RNA metabolic process negative regulation of cellular metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process negative regulation of macromolecule metabolic process regulation of biosynthetic process negative regulation of DNA-templated transcription regulation of biological process cellular metabolic process negative regulation of metabolic process biological regulation primary metabolic process regulation of cellular metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process negative regulation of cellular biosynthetic process regulation of cellular biosynthetic process regulation of gene expression biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process metabolic process cellular process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process negative regulation of RNA metabolic process morphogenesis of follicular epithelium sexual reproduction cellular developmental process reproductive process germarium-derived female germ-line cyst encapsulation cell development cellular process involved in reproduction in multicellular organism developmental process involved in reproduction female gamete generation epithelial cell differentiation gamete generation follicle cell of egg chamber development cell differentiation anatomical structure development developmental process epithelium development germarium-derived egg chamber formation oogenesis multicellular organismal reproductive process female germ-line cyst encapsulation morphogenesis of an epithelium germ-line cyst encapsulation tissue development anatomical structure morphogenesis tissue morphogenesis epithelial cell development anatomical structure formation involved in morphogenesis germ cell development neurogenesis multicellular organism development multicellular organismal process nervous system development system development follicle cell of egg chamber stalk formation cell morphogenesis axonogenesis cell projection organization plasma membrane bounded cell projection morphogenesis neuron projection development cellular component organization cell projection morphogenesis neuron differentiation neuron projection morphogenesis cellular component organization or biogenesis plasma membrane bounded cell projection organization axon development cell morphogenesis involved in neuron differentiation generation of neurons neuron development anterior/posterior axis specification anterior/posterior pattern specification pattern specification process regionalization axis specification chromatin organization chromatin remodeling heterochromatin formation epigenetic regulation of gene expression negative regulation of gene expression negative regulation of gene expression, epigenetic sensory organ development eye development animal organ development visual system development compound eye development sensory system development transcription by RNA polymerase II regulation of transcription by RNA polymerase II central nervous system development ventral cord development regulation of growth negative regulation of growth growth	intracellular organelle intracellular anatomical structure organelle intracellular non-membrane-bounded organelle polytene chromosome chromosome cellular anatomical entity non-membrane-bounded organelle membrane-bounded organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C	IPR038348	SLED domain superfamily	Homologous Superfamily
A, B, C	IPR004092	Mbt repeat	Repeat
A, B, C	IPR021987	SLED domain	Domain
A, B, C	IPR050548	Polycomb group and chromatin remodeling factors	Family
A, B, C	IPR012313	Zinc finger, FCS-type	Domain
A, B, C	IPR047531	Sex comb on midleg-like, SAM domain	Domain
A, B, C	IPR010507	Zinc finger, MYM-type	Domain
A, B, C	IPR013761	Sterile alpha motif/pointed domain superfamily	Homologous Superfamily
A, B, C	IPR001660	Sterile alpha motif domain	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 R01GM157729.