Annotations: 9H77

MPP8 chromodomain in complex with nanobody 3A02

External Resource: Annotation

Domain Annotation: SCOP2 Classification
SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D	SCOP2B Superfamily	Chromo domain-like	8066167	3000161	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Chromo domain-like	8066167	3000161	SCOP2B (2022-06-29)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
A, B	Heavy Chain	IGHV3	-	m-phase phosphoprotein 8	SAbDab (2026-05-08)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
C, D	PF00385	Chromo (CHRromatin Organisation MOdifier) domain (Chromo)	Chromo (CHRromatin Organisation MOdifier) domain		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C, D	M-phase phosphoprotein 8	histone H3K9me2/3 reader activity histone reader activity histone H3 reader activity chromatin-protein adaptor activity protein-macromolecule adaptor activity molecular adaptor activity chromatin binding binding	multicellular organismal process regulation of cellular process negative regulation of biological process negative regulation of type I interferon production cytokine production negative regulation of cellular process regulation of cytokine production regulation of multicellular organismal process negative regulation of macromolecule metabolic process regulation of biosynthetic process regulation of biological process type I interferon production negative regulation of metabolic process biological regulation multicellular organismal process regulation of cellular process negative regulation of biological process negative regulation of type I interferon production cytokine production negative regulation of cellular process regulation of cytokine production regulation of multicellular organismal process negative regulation of macromolecule metabolic process regulation of biosynthetic process regulation of biological process type I interferon production negative regulation of metabolic process biological regulation negative regulation of cytokine production regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of gene expression negative 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 negative regulation of multicellular organismal process regulation of metabolic process regulation of type I interferon production negative regulation of gene expression via chromosomal CpG island methylation cellular component organization chromatin organization chromatin remodeling cellular component organization or biogenesis epigenetic regulation of gene expression negative regulation of gene expression, epigenetic cellular component biogenesis cellular component assembly retrotransposition heterochromatin formation transposable element silencing by heterochromatin formation heterochromatin organization transposition constitutive heterochromatin formation transposable element silencing	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus intracellular organelle lumen intracellular organelle cellular anatomical structure organelle lumen organelle membraneless organelle nuclear lumen membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus intracellular organelle lumen intracellular organelle cellular anatomical structure organelle lumen organelle membraneless organelle nuclear lumen protein-containing complex nuclear protein-containing complex chromatin silencing complex HUSH2 complex cytoplasm cytosol cell periphery plasma membrane membrane protein-DNA complex nucleosome chromatin chromosome nucleoplasm heterochromatin HUSH complex
A, B	Nb 3A02	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C, D	IPR023780	Chromo domain	Domain
C, D	IPR036770	Ankyrin repeat-containing domain superfamily	Homologous Superfamily
C, D	IPR016197	Chromo-like domain superfamily	Homologous Superfamily
C, D	IPR023779	Chromo domain, conserved site	Conserved Site
C, D	IPR050889	Dendritic Spine Regulation and Scaffold	Family
C, D	IPR002110	Ankyrin repeat	Repeat
C, D	IPR000953	Chromo/chromo shadow domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
C, D	: Q99549	adenoma osteosarcoma glioblastoma ovarian cancer malignant mesothelioma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia

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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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.