7PQD

Cryo-EM structure of the dimeric Rhodobacter sphaeroides RC-LH1 core complex at 2.9 A: the structural basis for dimerisation

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: OPM
Protein Modification Annotation

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
EA [auth M]	SCOP2B Superfamily	Bacterial photosystem II reaction centre L and M subunits	8099400	3000736	SCOP2B (2022-06-29)
NB [auth m]	SCOP2B Superfamily	Bacterial photosystem II reaction centre L and M subunits	8099400	3000736	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 [auth AA]	PF00556	e7pqdAA1	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: PF00556	ECOD (1.6)
B [auth AB]	PF00556	e7pqdAB1	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: PF00556	ECOD (1.6)
C [auth AC]	PF00556	e7pqdAC1	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: PF00556	ECOD (1.6)
D [auth AD]	PF00556	e7pqdAD1	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: PF00556	ECOD (1.6)
E [auth AE]	PF00556	e7pqdAE1	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: PF00556	ECOD (1.6)
F [auth AF]	PF00556	e7pqdAF1	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: PF00556	ECOD (1.6)
G [auth AG]	PF00556	e7pqdAG1	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: PF00556	ECOD (1.6)
H [auth AH]	PF00556	e7pqdAH1	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: PF00556	ECOD (1.6)
I [auth AI]	PF00556	e7pqdAI1	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: PF00556	ECOD (1.6)
J [auth AJ]	PF00556	e7pqdAJ1	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: PF00556	ECOD (1.6)
JA [auth aa]	PF00556	e7pqdaa1	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: PF00556	ECOD (1.6)
K [auth AK]	PF00556	e7pqdAK1	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: PF00556	ECOD (1.6)
KA [auth ab]	PF00556	e7pqdab1	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: PF00556	ECOD (1.6)
L [auth AL]	PF00556	e7pqdAL1	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: PF00556	ECOD (1.6)
LA [auth ac]	PF00556	e7pqdac1	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: PF00556	ECOD (1.6)
M [auth AM]	PF00556	e7pqdAM1	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: PF00556	ECOD (1.6)
MA [auth ad]	PF00556	e7pqdad1	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: PF00556	ECOD (1.6)
N [auth AN]	PF00556	e7pqdAN1	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: PF00556	ECOD (1.6)
NA [auth ae]	PF00556	e7pqdae1	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: PF00556	ECOD (1.6)
OA [auth af]	PF00556	e7pqdaf1	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: PF00556	ECOD (1.6)
PA [auth ag]	PF00556	e7pqdag1	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: PF00556	ECOD (1.6)
QA [auth ah]	PF00556	e7pqdah1	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: PF00556	ECOD (1.6)
RA [auth ai]	PF00556	e7pqdai1	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: PF00556	ECOD (1.6)
SA [auth aj]	PF00556	e7pqdaj1	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: PF00556	ECOD (1.6)
TA [auth ak]	PF00556	e7pqdak1	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: PF00556	ECOD (1.6)
UA [auth al]	PF00556	e7pqdal1	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: PF00556	ECOD (1.6)
VA [auth am]	PF00556	e7pqdam1	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: PF00556	ECOD (1.6)
WA [auth an]	PF00556	e7pqdan1	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: PF00556	ECOD (1.6)
AA [auth BM]	PF00556	e7pqdBM1	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: PF00556	ECOD (1.6)
AB [auth bd]	PF00556	e7pqdbd1	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: PF00556	ECOD (1.6)
BA [auth BN]	PF00556	e7pqdBN1	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: PF00556	ECOD (1.6)
BB [auth be]	PF00556	e7pqdbe1	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: PF00556	ECOD (1.6)
CB [auth bf]	PF00556	e7pqdbf1	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: PF00556	ECOD (1.6)
DB [auth bg]	PF00556	e7pqdbg1	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: PF00556	ECOD (1.6)
EB [auth bh]	PF00556	e7pqdbh1	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: PF00556	ECOD (1.6)
FB [auth bi]	PF00556	e7pqdbi1	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: PF00556	ECOD (1.6)
GB [auth bj]	PF00556	e7pqdbj1	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: PF00556	ECOD (1.6)
HB [auth bk]	PF00556	e7pqdbk1	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: PF00556	ECOD (1.6)
IB [auth bl]	PF00556	e7pqdbl1	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: PF00556	ECOD (1.6)
JB [auth bm]	PF00556	e7pqdbm1	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: PF00556	ECOD (1.6)
KB [auth bn]	PF00556	e7pqdbn1	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: PF00556	ECOD (1.6)
O [auth BA]	PF00556	e7pqdBA1	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: PF00556	ECOD (1.6)
P [auth BB]	PF00556	e7pqdBB1	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: PF00556	ECOD (1.6)
Q [auth BC]	PF00556	e7pqdBC1	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: PF00556	ECOD (1.6)
R [auth BD]	PF00556	e7pqdBD1	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: PF00556	ECOD (1.6)
S [auth BE]	PF00556	e7pqdBE1	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: PF00556	ECOD (1.6)
T [auth BF]	PF00556	e7pqdBF1	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: PF00556	ECOD (1.6)
U [auth BG]	PF00556	e7pqdBG1	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: PF00556	ECOD (1.6)
V [auth BH]	PF00556	e7pqdBH1	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: PF00556	ECOD (1.6)
W [auth BI]	PF00556	e7pqdBI1	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: PF00556	ECOD (1.6)
X [auth BJ]	PF00556	e7pqdBJ1	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: PF00556	ECOD (1.6)
XA [auth ba]	PF00556	e7pqdba1	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: PF00556	ECOD (1.6)
Y [auth BK]	PF00556	e7pqdBK1	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: PF00556	ECOD (1.6)
YA [auth bb]	PF00556	e7pqdbb1	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: PF00556	ECOD (1.6)
Z [auth BL]	PF00556	e7pqdBL1	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: PF00556	ECOD (1.6)
ZA [auth bc]	PF00556	e7pqdbc1	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: PF00556	ECOD (1.6)
CA [auth H]	PF03967,PF05239	e7pqdH1	A: beta barrels	X: SH3	H: PRC-barrel domain (From Topology)	T: PRC-barrel domain	F: PF03967,PF05239	ECOD (1.6)
CA [auth H]	PF03967	e7pqdH2	A: extended segments	X: Photosystem II reaction centre subunit H, transmembrane region (From Topology)	H: Photosystem II reaction centre subunit H, transmembrane region (From Topology)	T: Photosystem II reaction centre subunit H, transmembrane region	F: PF03967	ECOD (1.6)
LB [auth h]	PF03967,PF05239	e7pqdh1	A: beta barrels	X: SH3	H: PRC-barrel domain (From Topology)	T: PRC-barrel domain	F: PF03967,PF05239	ECOD (1.6)
LB [auth h]	PF03967	e7pqdh2	A: extended segments	X: Photosystem II reaction centre subunit H, transmembrane region (From Topology)	H: Photosystem II reaction centre subunit H, transmembrane region (From Topology)	T: Photosystem II reaction centre subunit H, transmembrane region	F: PF03967	ECOD (1.6)
DA [auth L]	PF00124	e7pqdL1	A: alpha bundles	X: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	H: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	T: Bacterial photosystem II reaction centre L and M subunits-like	F: PF00124	ECOD (1.6)
MB [auth l]	PF00124	e7pqdl1	A: alpha bundles	X: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	H: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	T: Bacterial photosystem II reaction centre L and M subunits-like	F: PF00124	ECOD (1.6)
EA [auth M]	PF00124	e7pqdM1	A: alpha bundles	X: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	H: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	T: Bacterial photosystem II reaction centre L and M subunits-like	F: PF00124	ECOD (1.6)
NB [auth m]	PF00124	e7pqdm1	A: alpha bundles	X: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	H: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	T: Bacterial photosystem II reaction centre L and M subunits-like	F: PF00124	ECOD (1.6)
IA [auth X]	PF11511	e7pqdX1	A: extended segments	X: Intrinsic membrane protein pufX (From Topology)	H: Intrinsic membrane protein pufX (From Topology)	T: Intrinsic membrane protein pufX	F: PF11511	ECOD (1.6)
RB [auth x]	PF11511	e7pqdx1	A: extended segments	X: Intrinsic membrane protein pufX (From Topology)	H: Intrinsic membrane protein pufX (From Topology)	T: Intrinsic membrane protein pufX	F: PF11511	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
EA [auth M], NB [auth m]	PF00124	Photosynthetic reaction centre protein (Photo_RC)	Photosynthetic reaction centre protein	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth AA], B [auth AB], C [auth AC], D [auth AD], E [auth AE], A [auth AA], B [auth AB], C [auth AC], D [auth AD], E [auth AE], F [auth AF], G [auth AG], H [auth AH], I [auth AI], J [auth AJ], JA [auth aa], K [auth AK], KA [auth ab], L [auth AL], LA [auth ac], M [auth AM], MA [auth ad], N [auth AN], NA [auth ae], OA [auth af], PA [auth ag], QA [auth ah], RA [auth ai], SA [auth aj], TA [auth ak], UA [auth al], VA [auth am], WA [auth an]	LH1-alpha	-	-	-
AA [auth BM], AB [auth bd], BA [auth BN], BB [auth be], CB [auth bf], AA [auth BM], AB [auth bd], BA [auth BN], BB [auth be], CB [auth bf], DB [auth bg], EB [auth bh], FB [auth bi], GB [auth bj], HB [auth bk], IB [auth bl], JB [auth bm], KB [auth bn], O [auth BA], P [auth BB], Q [auth BC], R [auth BD], S [auth BE], T [auth BF], U [auth BG], V [auth BH], W [auth BI], X [auth BJ], XA [auth ba], Y [auth BK], YA [auth bb], Z [auth BL], ZA [auth bc]	LH1-beta	-	-	-
CA [auth H], LB [auth h]	RC-H	-	-	-
DA [auth L], MB [auth l]	RC-L	-	-	-
EA [auth M], NB [auth m]	Reaction center protein M 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 photosynthetic electron transport chain cellular metabolic process electron transport chain photosynthetic electron transport in photosystem II metabolic process cellular process generation of precursor metabolites and energy	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane-derived chromatophore cellular anatomical entity intracellular organelle organelle intracellular non-membrane-bounded organelle cytoplasm photosynthetic membrane thylakoid non-membrane-bounded organelle membrane-bounded organelle plasma membrane light-harvesting complex intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane-derived chromatophore cellular anatomical entity intracellular organelle organelle intracellular non-membrane-bounded organelle cytoplasm photosynthetic membrane thylakoid non-membrane-bounded organelle membrane-bounded organelle plasma membrane light-harvesting complex protein-containing complex intracellular vesicle intracellular membrane-bounded organelle light-harvesting complex cytoplasmic vesicle vesicle
FA [auth UA], GA [auth UB], OB [auth ua], PB [auth ub]	PufZ	-	-	-
HA [auth UU], QB [auth uu]	PufY	-	-	-
IA [auth X], RB [auth x]	PufX	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
EA [auth M], NB [auth m]	IPR036854	Photosystem II protein D1/D2 superfamily	Homologous Superfamily
EA [auth M], NB [auth m]	IPR005781	Photosynthetic reaction centre, M subunit	Family
EA [auth M], NB [auth m]	IPR000484	Photosynthetic reaction centre, L/M	Family

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
EA [auth M], NB [auth m]	OPM	Transmembrane	Alpha-helical polytopic	Photosystems	Bacterial photosystems

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A [auth AA], B [auth AB], C [auth AC], D [auth AD], E [auth AE], A [auth AA], B [auth AB], C [auth AC], D [auth AD], E [auth AE], F [auth AF], G [auth AG], H [auth AH], I [auth AI], J [auth AJ], JA [auth aa], K [auth AK], KA [auth ab], L [auth AL], LA [auth ac], M [auth AM], MA [auth ad], N [auth AN], NA [auth ae], OA [auth af], PA [auth ag], QA [auth ah], RA [auth ai], SA [auth aj], TA [auth ak], UA [auth al], VA [auth am], WA [auth an]	FME	Parent Component: MET RESID: AA0021 , AA0566 PSI-MOD : N-formyl-L-methionine residue MOD:00030 , N-formyl-L-methionine (Met) MOD:00482 , N-[(L-histidin-1'-yl)methyl]-L-methionine (fMet) MOD:01890 , N-[(L-histidin-1'-yl)methyl]-L-methionine (Met) MOD:01891