Annotations: 3UI2

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Ankyrin repeat	8004144	4000366	SCOP2 (2022-06-29)
A	SCOP2 Family	Chromo domain	8004141	4000375	SCOP2 (2022-06-29)
A	SCOP2 Family	Chromo domain	8004140	4000375	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Ankyrin repeat	8017707	3000154	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Chromo domain-like	8004142	3000161	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Chromo domain-like	8017710	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	e3ui2A4	A: beta barrels	X: SH3	H: Chromo domain-like (From Topology)	T: Chromo domain-like	F: Chromo	ECOD (1.6)
A	Chromo_shadow	e3ui2A2	A: beta barrels	X: SH3	H: Chromo domain-like (From Topology)	T: Chromo domain-like	F: Chromo_shadow	ECOD (1.6)
A	Ank_2	e3ui2A3	A: alpha superhelices	X: Repetitive alpha hairpins	H: Ankyrin repeat (From Topology)	T: Ankyrin repeat	F: Ank_2	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)
A	1.25.40.20	Mainly Alpha	Alpha Horseshoe	Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat	Ankyrin repeat-containing domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00023	Ankyrin repeat (Ank)	Ankyrin repeat	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Signal recognition particle 43 kDa protein, chloroplastic	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 organic substance transport 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 organic substance transport 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 bounding membrane of organelle thylakoid plastid envelope chloroplast chloroplast thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope bounding membrane of organelle thylakoid plastid envelope chloroplast non-membrane-bounded organelle membrane cellular anatomical entity intracellular membrane-bounded organelle thylakoid membrane organelle chloroplast thylakoid intracellular non-membrane-bounded organelle 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
B	Signal recognition particle 54 kDa protein, chloroplastic	protein binding binding protein domain specific binding RNA binding 7S RNA binding organic cyclic compound binding nucleic acid 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 protein binding binding protein domain specific binding RNA binding 7S RNA binding organic cyclic compound binding nucleic acid 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 guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding GTPase activity	protein localization establishment of protein localization cellular localization establishment of protein localization to membrane protein targeting localization within membrane protein localization to membrane establishment of localization protein targeting to membrane localization SRP-dependent cotranslational protein targeting to membrane establishment of protein localization to organelle cellular macromolecule localization macromolecule localization protein localization to organelle protein localization establishment of protein localization cellular localization establishment of protein localization to membrane protein targeting localization within membrane protein localization to membrane establishment of localization protein targeting to membrane localization SRP-dependent cotranslational protein targeting to membrane establishment of protein localization to organelle cellular macromolecule localization macromolecule localization protein localization to organelle cotranslational protein targeting to membrane cellular process establishment of protein localization to endoplasmic reticulum protein localization to endoplasmic reticulum protein targeting to ER 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	membrane-bounded organelle intracellular anatomical structure plastid cellular anatomical entity intracellular membrane-bounded organelle intracellular organelle plastid stroma organelle chloroplast stroma cytoplasm chloroplast cell periphery plasma membrane membrane membrane-bounded organelle intracellular anatomical structure plastid cellular anatomical entity intracellular membrane-bounded organelle intracellular organelle plastid stroma organelle chloroplast stroma cytoplasm chloroplast cell periphery plasma membrane membrane signal recognition particle protein-containing complex signal recognition particle, endoplasmic reticulum targeting ribonucleoprotein complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR002110	Ankyrin repeat	Repeat
A	IPR000953	Chromo/chromo shadow domain	Domain
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
B	IPR000897	Signal recognition particle, SRP54 subunit, GTPase domain	Domain
B	IPR022941	Signal recognition particle, SRP54 subunit	Family
B	IPR004125	Signal recognition particle, SRP54 subunit, M-domain	Domain
B	IPR042101	Signal recognition particle SRP54, N-terminal domain superfamily	Homologous Superfamily
B	IPR003593	AAA+ ATPase domain	Domain
B	IPR004780	Signal recognition particle protein	Family
B	IPR013822	Signal recognition particle SRP54, helical bundle	Domain
B	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
B	IPR036891	Signal recognition particle, SRP54 subunit, M-domain superfamily	Homologous Superfamily

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.