2FKW

Structure of LH2 from Rps. acidophila crystallized in lipidic mesophases

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD
Protein Modification Annotation

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2fkwa_	Membrane and cell surface proteins and peptides	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	(Rhodoblastus acidophilus ) [TaxId: 1074 ],	SCOPe (2.08)
C	d2fkwc_	Membrane and cell surface proteins and peptides	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	(Rhodoblastus acidophilus ) [TaxId: 1074 ],	SCOPe (2.08)
E	d2fkwe_	Membrane and cell surface proteins and peptides	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	(Rhodoblastus acidophilus ) [TaxId: 1074 ],	SCOPe (2.08)
G	d2fkwg_	Membrane and cell surface proteins and peptides	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	(Rhodoblastus acidophilus ) [TaxId: 1074 ],	SCOPe (2.08)
I	d2fkwi_	Membrane and cell surface proteins and peptides	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	(Rhodoblastus acidophilus ) [TaxId: 1074 ],	SCOPe (2.08)
K	d2fkwk_	Membrane and cell surface proteins and peptides	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	(Rhodoblastus acidophilus ) [TaxId: 1074 ],	SCOPe (2.08)
M	d2fkwm_	Membrane and cell surface proteins and peptides	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	(Rhodoblastus acidophilus ) [TaxId: 1074 ],	SCOPe (2.08)
O	d2fkwo_	Membrane and cell surface proteins and peptides	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	(Rhodoblastus acidophilus ) [TaxId: 1074 ],	SCOPe (2.08)
Q [auth R]	d2fkwr_	Membrane and cell surface proteins and peptides	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	(Rhodoblastus acidophilus ) [TaxId: 1074 ],	SCOPe (2.08)
B	d2fkwb_	Membrane and cell surface proteins and peptides	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	(Rhodoblastus acidophilus ) [TaxId: 1074 ],	SCOPe (2.08)
D	d2fkwd_	Membrane and cell surface proteins and peptides	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	(Rhodoblastus acidophilus ) [TaxId: 1074 ],	SCOPe (2.08)
F	d2fkwf_	Membrane and cell surface proteins and peptides	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	(Rhodoblastus acidophilus ) [TaxId: 1074 ],	SCOPe (2.08)
H	d2fkwh_	Membrane and cell surface proteins and peptides	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	(Rhodoblastus acidophilus ) [TaxId: 1074 ],	SCOPe (2.08)
J	d2fkwj_	Membrane and cell surface proteins and peptides	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	(Rhodoblastus acidophilus ) [TaxId: 1074 ],	SCOPe (2.08)
L	d2fkwl_	Membrane and cell surface proteins and peptides	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	(Rhodoblastus acidophilus ) [TaxId: 1074 ],	SCOPe (2.08)
N	d2fkwn_	Membrane and cell surface proteins and peptides	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	(Rhodoblastus acidophilus ) [TaxId: 1074 ],	SCOPe (2.08)
P	d2fkwp_	Membrane and cell surface proteins and peptides	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	(Rhodoblastus acidophilus ) [TaxId: 1074 ],	SCOPe (2.08)
R [auth S]	d2fkws_	Membrane and cell surface proteins and peptides	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	Light-harvesting complex subunits	(Rhodoblastus acidophilus ) [TaxId: 1074 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Light-harvesting complex subunits	8043857	3000199	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Light-harvesting complex subunits	8043857	3000199	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	Light-harvesting complex subunits	8043857	3000199	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	Light-harvesting complex subunits	8043857	3000199	SCOP2B (2022-06-29)
I	SCOP2B Superfamily	Light-harvesting complex subunits	8043857	3000199	SCOP2B (2022-06-29)
K	SCOP2B Superfamily	Light-harvesting complex subunits	8043857	3000199	SCOP2B (2022-06-29)
M	SCOP2B Superfamily	Light-harvesting complex subunits	8043857	3000199	SCOP2B (2022-06-29)
O	SCOP2B Superfamily	Light-harvesting complex subunits	8043857	3000199	SCOP2B (2022-06-29)
Q [auth R]	SCOP2B Superfamily	Light-harvesting complex subunits	8043857	3000199	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	LHC_like	e2fkwA1	A: extended segments	X: Bacterial light-harvesting complex subunits (From Topology)	H: Bacterial light-harvesting complex subunits (From Topology)	T: Bacterial light-harvesting complex subunits	F: LHC_like	ECOD (1.6)
C	LHC_like	e2fkwC1	A: extended segments	X: Bacterial light-harvesting complex subunits (From Topology)	H: Bacterial light-harvesting complex subunits (From Topology)	T: Bacterial light-harvesting complex subunits	F: LHC_like	ECOD (1.6)
E	LHC_like	e2fkwE1	A: extended segments	X: Bacterial light-harvesting complex subunits (From Topology)	H: Bacterial light-harvesting complex subunits (From Topology)	T: Bacterial light-harvesting complex subunits	F: LHC_like	ECOD (1.6)
G	LHC_like	e2fkwG1	A: extended segments	X: Bacterial light-harvesting complex subunits (From Topology)	H: Bacterial light-harvesting complex subunits (From Topology)	T: Bacterial light-harvesting complex subunits	F: LHC_like	ECOD (1.6)
I	LHC_like	e2fkwI1	A: extended segments	X: Bacterial light-harvesting complex subunits (From Topology)	H: Bacterial light-harvesting complex subunits (From Topology)	T: Bacterial light-harvesting complex subunits	F: LHC_like	ECOD (1.6)
K	LHC_like	e2fkwK1	A: extended segments	X: Bacterial light-harvesting complex subunits (From Topology)	H: Bacterial light-harvesting complex subunits (From Topology)	T: Bacterial light-harvesting complex subunits	F: LHC_like	ECOD (1.6)
M	LHC_like	e2fkwM1	A: extended segments	X: Bacterial light-harvesting complex subunits (From Topology)	H: Bacterial light-harvesting complex subunits (From Topology)	T: Bacterial light-harvesting complex subunits	F: LHC_like	ECOD (1.6)
O	LHC_like	e2fkwO1	A: extended segments	X: Bacterial light-harvesting complex subunits (From Topology)	H: Bacterial light-harvesting complex subunits (From Topology)	T: Bacterial light-harvesting complex subunits	F: LHC_like	ECOD (1.6)
Q [auth R]	LHC_like	e2fkwR1	A: extended segments	X: Bacterial light-harvesting complex subunits (From Topology)	H: Bacterial light-harvesting complex subunits (From Topology)	T: Bacterial light-harvesting complex subunits	F: LHC_like	ECOD (1.6)
B	LHC_like	e2fkwB1	A: extended segments	X: Bacterial light-harvesting complex subunits (From Topology)	H: Bacterial light-harvesting complex subunits (From Topology)	T: Bacterial light-harvesting complex subunits	F: LHC_like	ECOD (1.6)
D	LHC_like	e2fkwD1	A: extended segments	X: Bacterial light-harvesting complex subunits (From Topology)	H: Bacterial light-harvesting complex subunits (From Topology)	T: Bacterial light-harvesting complex subunits	F: LHC_like	ECOD (1.6)
F	LHC_like	e2fkwF1	A: extended segments	X: Bacterial light-harvesting complex subunits (From Topology)	H: Bacterial light-harvesting complex subunits (From Topology)	T: Bacterial light-harvesting complex subunits	F: LHC_like	ECOD (1.6)
H	LHC_like	e2fkwH1	A: extended segments	X: Bacterial light-harvesting complex subunits (From Topology)	H: Bacterial light-harvesting complex subunits (From Topology)	T: Bacterial light-harvesting complex subunits	F: LHC_like	ECOD (1.6)
J	LHC_like	e2fkwJ1	A: extended segments	X: Bacterial light-harvesting complex subunits (From Topology)	H: Bacterial light-harvesting complex subunits (From Topology)	T: Bacterial light-harvesting complex subunits	F: LHC_like	ECOD (1.6)
L	LHC_like	e2fkwL1	A: extended segments	X: Bacterial light-harvesting complex subunits (From Topology)	H: Bacterial light-harvesting complex subunits (From Topology)	T: Bacterial light-harvesting complex subunits	F: LHC_like	ECOD (1.6)
N	LHC_like	e2fkwN1	A: extended segments	X: Bacterial light-harvesting complex subunits (From Topology)	H: Bacterial light-harvesting complex subunits (From Topology)	T: Bacterial light-harvesting complex subunits	F: LHC_like	ECOD (1.6)
P	LHC_like	e2fkwP1	A: extended segments	X: Bacterial light-harvesting complex subunits (From Topology)	H: Bacterial light-harvesting complex subunits (From Topology)	T: Bacterial light-harvesting complex subunits	F: LHC_like	ECOD (1.6)
R [auth S]	LHC_like	e2fkwS1	A: extended segments	X: Bacterial light-harvesting complex subunits (From Topology)	H: Bacterial light-harvesting complex subunits (From Topology)	T: Bacterial light-harvesting complex subunits	F: LHC_like	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	4.10.220.20	Few Secondary Structures	Irregular	Light-harvesting Protein	Light-harvesting complex	CATH (4.3.0)
C	4.10.220.20	Few Secondary Structures	Irregular	Light-harvesting Protein	Light-harvesting complex	CATH (4.3.0)
E	4.10.220.20	Few Secondary Structures	Irregular	Light-harvesting Protein	Light-harvesting complex	CATH (4.3.0)
G	4.10.220.20	Few Secondary Structures	Irregular	Light-harvesting Protein	Light-harvesting complex	CATH (4.3.0)
I	4.10.220.20	Few Secondary Structures	Irregular	Light-harvesting Protein	Light-harvesting complex	CATH (4.3.0)
K	4.10.220.20	Few Secondary Structures	Irregular	Light-harvesting Protein	Light-harvesting complex	CATH (4.3.0)
M	4.10.220.20	Few Secondary Structures	Irregular	Light-harvesting Protein	Light-harvesting complex	CATH (4.3.0)
O	4.10.220.20	Few Secondary Structures	Irregular	Light-harvesting Protein	Light-harvesting complex	CATH (4.3.0)
Q [auth R]	4.10.220.20	Few Secondary Structures	Irregular	Light-harvesting Protein	Light-harvesting complex	CATH (4.3.0)
B	1.20.5.250	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		CATH (4.3.0)
D	1.20.5.250	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		CATH (4.3.0)
F	1.20.5.250	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		CATH (4.3.0)
H	1.20.5.250	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		CATH (4.3.0)
J	1.20.5.250	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		CATH (4.3.0)
L	1.20.5.250	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		CATH (4.3.0)
N	1.20.5.250	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		CATH (4.3.0)
P	1.20.5.250	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		CATH (4.3.0)
R [auth S]	1.20.5.250	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, C, E, G, I, A, C, E, G, I, K, M, O, Q [auth R]	PF00556	Antenna complex alpha/beta subunit (LHC)	Antenna complex alpha/beta subunit	-	Domain
B, D, F, H, J, B, D, F, H, J, L, N, P, R [auth S]	PF00556	Antenna complex alpha/beta subunit (LHC)	Antenna complex alpha/beta subunit	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, C, E, G, I, A, C, E, G, I, K, M, O, Q [auth R]	Light-harvesting protein B-800/850, alpha chain	electron transfer activity electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity chlorophyll binding binding organic cyclic compound binding bacteriochlorophyll binding tetrapyrrole binding cation binding ion binding metal ion binding small molecule binding	photosynthesis photosynthesis, light reaction cellular metabolic process metabolic process cellular process generation of precursor metabolites and energy	membrane-bounded organelle intracellular organelle organelle envelope organelle inner membrane intracellular anatomical structure organelle membrane cellular anatomical entity organelle membrane cell periphery plasma membrane plasma membrane light-harvesting complex protein-containing complex intracellular vesicle membrane-bounded organelle intracellular organelle organelle envelope organelle inner membrane intracellular anatomical structure organelle membrane cellular anatomical entity organelle membrane cell periphery plasma membrane plasma membrane light-harvesting complex protein-containing complex intracellular vesicle plasma membrane-derived chromatophore intracellular membrane-bounded organelle light-harvesting complex cytoplasmic vesicle cytoplasm vesicle
B, D, F, H, J, B, D, F, H, J, L, N, P, R [auth S]	Light-harvesting protein B-800/850, beta chain	electron transfer activity electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity chlorophyll binding binding organic cyclic compound binding bacteriochlorophyll binding tetrapyrrole binding cation binding ion binding metal ion binding small molecule binding	photosynthesis photosynthesis, light reaction cellular metabolic process metabolic process cellular process generation of precursor metabolites and energy	cell periphery plasma membrane membrane cellular anatomical entity membrane-bounded organelle plasma membrane light-harvesting complex protein-containing complex intracellular anatomical structure intracellular vesicle plasma membrane-derived chromatophore intracellular membrane-bounded organelle light-harvesting complex intracellular organelle cytoplasmic vesicle cell periphery plasma membrane membrane cellular anatomical entity membrane-bounded organelle plasma membrane light-harvesting complex protein-containing complex intracellular anatomical structure intracellular vesicle plasma membrane-derived chromatophore intracellular membrane-bounded organelle light-harvesting complex intracellular organelle cytoplasmic vesicle organelle cytoplasm vesicle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, C, E, G, I, A, C, E, G, I, K, M, O, Q [auth R]	IPR000066	Antenna complex, alpha/beta subunit	Domain
A, C, E, G, I, A, C, E, G, I, K, M, O, Q [auth R]	IPR018332	Antenna complex, alpha subunit	Family
A, C, E, G, I, A, C, E, G, I, K, M, O, Q [auth R]	IPR002361	Antenna complex, alpha subunit conserved site	Conserved Site
A, C, E, G, I, A, C, E, G, I, K, M, O, Q [auth R]	IPR035889	Light-harvesting complex	Homologous Superfamily
B, D, F, H, J, B, D, F, H, J, L, N, P, R [auth S]	IPR000066	Antenna complex, alpha/beta subunit	Domain
B, D, F, H, J, B, D, F, H, J, L, N, P, R [auth S]	IPR023624	Antenna complex, beta domain superfamily	Homologous Superfamily
B, D, F, H, J, B, D, F, H, J, L, N, P, R [auth S]	IPR035889	Light-harvesting complex	Homologous Superfamily
B, D, F, H, J, B, D, F, H, J, L, N, P, R [auth S]	IPR023623	Antenna complex, beta subunit, conserved site	Conserved Site
B, D, F, H, J, B, D, F, H, J, L, N, P, R [auth S]	IPR002362	Light-harvesting protein B beta chain	Family

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q [auth R], R [auth S]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q [auth R], R [auth S]	MemProtMD	Annotated as membrane protein by MemProtMD

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A, C, E, G, I, A, C, E, G, I, K, M, O, Q [auth R]	CXM	Parent Component: MET RESID: AA0363 , AA0493 PSI-MOD : N-carboxy-L-methionine MOD:00368 , N-(dihydroxymethyl)-L-methionine (fMet) MOD:01446 , N-(dihydroxymethyl)-L-methionine (Met) MOD:01447

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.