Annotations: 1X3P

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1x3pa1	All beta proteins	SH3-like barrel	Chromo domain-like	Chromo domain	CpSRP43	thale cress (Arabidopsis thaliana ) [TaxId: 3702 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Chromo domain	8004147	4000375	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Chromo domain-like	8056484	3000161	SCOP2 (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	Chromo	e1x3pA1	A: beta barrels	X: SH3	H: Chromo domain-like (From Topology)	T: Chromo domain-like	F: Chromo	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.40.50.40	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	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
A	cpSRP43	protein binding binding protein domain specific binding cation binding ion binding metal ion binding small molecule binding protein-macromolecule adaptor activity molecular adaptor activity disordered domain specific binding identical protein binding	protein localization protein import establishment of protein localization cellular localization nitrogen compound transport protein transmembrane import into intracellular organelle transport localization protein localization to chloroplast protein transmembrane transport cellular macromolecule localization protein import into chloroplast thylakoid membrane establishment of protein localization to membrane localization within membrane protein localization protein import establishment of protein localization cellular localization nitrogen compound transport protein transmembrane import into intracellular organelle transport localization protein localization to chloroplast protein transmembrane transport cellular macromolecule localization protein import into chloroplast thylakoid membrane establishment of protein localization to membrane localization within membrane protein localization to membrane establishment of localization transmembrane transport establishment of protein localization to chloroplast establishment of protein localization to organelle protein transport macromolecule localization protein localization to organelle cellular process response to light stimulus response to light intensity response to stimulus response to radiation response to abiotic stimulus response to high light intensity protein-containing complex organization protein trimerization protein heterotrimerization cellular component organization cellular component biogenesis cellular component assembly protein complex oligomerization protein-containing complex assembly cellular component organization or biogenesis protein heterooligomerization	chloroplast thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure bounding membrane of organelle membraneless organelle plastid envelope chloroplast thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure bounding membrane of organelle membraneless organelle plastid envelope thylakoid chloroplast membrane intracellular membraneless organelle intracellular membrane-bounded organelle thylakoid membrane organelle chloroplast thylakoid outer membrane cytoplasm photosynthetic membrane organelle membrane plastid stroma chloroplast stroma cytosol signal recognition particle protein-containing complex signal recognition particle, endoplasmic reticulum targeting ribonucleoprotein complex chloroplast envelope

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR002110	Ankyrin repeat	Repeat
A	IPR000953	Chromo/chromo shadow domain	Domain
A	IPR050745	Multifunctional regulatory proteins	Family
A	IPR023780	Chromo domain	Domain
A	IPR036770	Ankyrin repeat-containing domain superfamily	Homologous Superfamily
A	IPR016197	Chromo-like domain superfamily	Homologous Superfamily
A	IPR030300	Signal recognition particle 43kDa protein, chromodomain 3	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.