2HUG | pdb_00002hug

3D Solution Structure of the Chromo-2 Domain of cpSRP43 complexed with cpSRP54 peptide

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
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	d2huga2	All beta proteins	SH3-like barrel	Chromo domain-like	Chromo domain	CpSRP43	thale cress (Arabidopsis thaliana ) [TaxId: 3702 ],	SCOPe (2.08)
A	d2huga3	Artifacts	Tags	Tags	Tags	N-terminal Tags	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	SCOP2B Superfamily	Chromo domain-like	8004142	3000161	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	Chromo	e2hugA1	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)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B	Signal recognition particle 54 kDa protein, chloroplast	protein binding binding protein domain specific binding RNA binding 7S RNA 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 protein binding binding protein domain specific binding RNA binding 7S RNA 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	establishment of protein localization cellular localization establishment of protein localization to membrane protein targeting localization within membrane establishment of localization protein targeting to membrane localization SRP-dependent cotranslational protein targeting to membrane establishment of protein localization to organelle cotranslational protein targeting to membrane cellular process establishment of protein localization to endoplasmic reticulum protein targeting to ER establishment of protein localization cellular localization establishment of protein localization to membrane protein targeting localization within membrane establishment of localization protein targeting to membrane localization SRP-dependent cotranslational protein targeting to membrane establishment of protein localization to organelle cotranslational protein targeting to membrane cellular process establishment of 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 intracellular membrane-bounded organelle intracellular organelle cellular anatomical structure plastid stroma organelle chloroplast stroma cytoplasm chloroplast cell periphery plasma membrane membrane membrane-bounded organelle intracellular anatomical structure plastid intracellular membrane-bounded organelle intracellular organelle cellular anatomical structure 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
A	Signal recognition particle 43 kDa protein, chloroplast	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 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 establishment of localization in cell intracellular protein localization protein import into chloroplast thylakoid membrane establishment of protein localization to membrane intracellular protein transmembrane transport 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 establishment of localization in cell intracellular protein localization protein import into chloroplast thylakoid membrane establishment of protein localization to membrane intracellular protein transmembrane transport intracellular 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 protein localization to organelle macromolecule localization cellular process intracellular protein transport 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
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
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.