Annotations: 1QGW

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1qgwa_	Alpha and beta proteins (a+b)	Non-globular alpha+beta subunits of globular proteins	Non-globular alpha+beta subunits of globular proteins	Phycoerythrin 545 alpha-subunits	Phycoerythrin 545 alpha-subunits	(Rhodomonas sp. CS24 ) [TaxId: 79257 ],	SCOPe (2.08)
B	d1qgwb_	Alpha and beta proteins (a+b)	Non-globular alpha+beta subunits of globular proteins	Non-globular alpha+beta subunits of globular proteins	Phycoerythrin 545 alpha-subunits	Phycoerythrin 545 alpha-subunits	(Rhodomonas sp. CS24 ) [TaxId: 79257 ],	SCOPe (2.08)
C	d1qgwc_	All alpha proteins	Globin-like	Globin-like	Phycocyanin-like phycobilisome proteins	Phycoerythrin beta subunit	(Rhodomonas sp. CS24 ) [TaxId: 79257 ],	SCOPe (2.08)
D	d1qgwd_	All alpha proteins	Globin-like	Globin-like	Phycocyanin-like phycobilisome proteins	Phycoerythrin beta subunit	(Rhodomonas sp. CS24 ) [TaxId: 79257 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Non-globular alpha+beta subunits of globular proteins	8043885	3001542	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Globin-like	8043886	3000554	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Globin-like	8043886	3000554	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	Phycoerythr_ab	e1qgwA1	A: extended segments	X: Phycoerythrin 545 alpha-subunits (From Topology)	H: Phycoerythrin 545 alpha-subunits (From Topology)	T: Phycoerythrin 545 alpha-subunits	F: Phycoerythr_ab	ECOD (1.6)
B	Phycoerythr_ab	e1qgwB1	A: extended segments	X: Phycoerythrin 545 alpha-subunits (From Topology)	H: Phycoerythrin 545 alpha-subunits (From Topology)	T: Phycoerythrin 545 alpha-subunits	F: Phycoerythr_ab	ECOD (1.6)
C	Phycobilisome	e1qgwC1	A: alpha arrays	X: Globin-like (From Topology)	H: Globin-like (From Topology)	T: Globin-like	F: Phycobilisome	ECOD (1.6)
D	Phycobilisome	e1qgwD1	A: alpha arrays	X: Globin-like (From Topology)	H: Globin-like (From Topology)	T: Globin-like	F: Phycobilisome	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.90.510.10	Alpha Beta	Alpha-Beta Complex	Cryptophytan Phycoerythrin (Alpha-1 Chain)	Chain A	CATH (4.3.0)
B	3.90.510.10	Alpha Beta	Alpha-Beta Complex	Cryptophytan Phycoerythrin (Alpha-1 Chain)	Chain A	CATH (4.3.0)
C	1.10.490.20	Mainly Alpha	Orthogonal Bundle	Globin-like	Phycocyanins	CATH (4.3.0)
D	1.10.490.20	Mainly Alpha	Orthogonal Bundle	Globin-like	Phycocyanins	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF02972	Phycoerythrin, alpha/beta chain (Phycoerythr_ab)	Phycoerythrin, alpha/beta chain	-	Family
B	PF02972	Phycoerythrin, alpha/beta chain (Phycoerythr_ab)	Phycoerythrin, alpha/beta chain	-	Family
C, D	PF00502	Phycobilisome protein (Phycobilisome)	Phycobilisome protein	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	PROTEIN (CRYPTOPHYTAN PHYCOERYTHRIN (ALPHA-1 CHAIN))	-	photosynthesis metabolic process cellular process	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 thylakoid 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 thylakoid plastid envelope chloroplast membrane intracellular membraneless organelle intracellular membrane-bounded organelle thylakoid membrane organelle chloroplast thylakoid outer membrane cytoplasm photosynthetic membrane organelle membrane protein-containing complex membrane protein complex light-harvesting complex phycobilisome
B	PROTEIN (CRYPTOPHYTAN PHYCOERYTHRIN (ALPHA-2 CHAIN))	-	photosynthesis metabolic process cellular process	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 thylakoid 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 thylakoid plastid envelope chloroplast membrane intracellular membraneless organelle intracellular membrane-bounded organelle thylakoid membrane organelle chloroplast thylakoid outer membrane cytoplasm photosynthetic membrane organelle membrane protein-containing complex membrane protein complex light-harvesting complex phycobilisome
C, D	PROTEIN (CRYPTOPHYTAN PHYCOERYTHRIN (BETA CHAIN))	-	photosynthesis metabolic process cellular process	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 thylakoid 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 thylakoid plastid envelope chloroplast membrane intracellular membraneless organelle intracellular membrane-bounded organelle thylakoid membrane organelle chloroplast thylakoid outer membrane cytoplasm photosynthetic membrane organelle membrane protein-containing complex membrane protein complex light-harvesting complex phycobilisome

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR006311	Twin-arginine translocation pathway, signal sequence	Conserved Site
A	IPR004228	Phycoerythrin alpha chain	Domain
A	IPR037011	Phycoerythrin-like alpha chain superfamily	Homologous Superfamily
A	IPR011070	Globular protein, non-globular alpha/beta subunit	Homologous Superfamily
B	IPR004228	Phycoerythrin alpha chain	Domain
B	IPR037011	Phycoerythrin-like alpha chain superfamily	Homologous Superfamily
B	IPR011070	Globular protein, non-globular alpha/beta subunit	Homologous Superfamily
C, D	IPR038719	Phycobilisome, alpha/beta subunit superfamily	Homologous Superfamily
C, D	IPR009050	Globin-like superfamily	Homologous Superfamily
C, D	IPR012128	Phycobilisome, alpha/beta subunit	Family

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A	LYZ	Parent Component: LYS RESID: AA0028 PSI-MOD : 5-hydroxy-L-lysine MOD:00037
B	LYZ	Parent Component: LYS RESID: AA0028 , AA0028 PSI-MOD : 5-hydroxy-L-lysine MOD:00037 , 5-hydroxy-L-lysine MOD:00037
C, D	MEN	Parent Component: ASN RESID: AA0028 , AA0028 , AA0070 PSI-MOD : 5-hydroxy-L-lysine MOD:00037 , 5-hydroxy-L-lysine MOD:00037 , N4-methyl-L-asparagine MOD:00079

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.