7Y7B

Cryo-EM structure of cryptophyte photosystem I

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	1	ACPI-1	polymer	222	23479.4	1		Chroomonas placoidea
2	2	ACPI-2	polymer	216	23400.1	1		Chroomonas placoidea
3	3	ACPI-3	polymer	236	24966.3	1		Chroomonas placoidea
4	4	ACPI-4	polymer	217	23548.2	1		Chroomonas placoidea
5	5	ACPI-5	polymer	229	24055.0	1		Chroomonas placoidea
6	6	ACPI-6	polymer	215	22688.6	1		Chroomonas placoidea
7	7	ACPI-7	polymer	230	24550.4	1		Chroomonas placoidea
8	8	ACPI-8	polymer	227	23700.5	1		Chroomonas placoidea
9	9	ACPI-12	polymer	220	23223.1	1		Chroomonas placoidea
10	A	Photosystem I P700 chlorophyll a apoprotein A1	polymer	752	83493.6	1	UniProt (A0A222AIB4) Pfam (PF00223) In PDB	Chroomonas placoidea	PsaA
11	B	Photosystem I P700 chlorophyll a apoprotein A2	polymer	734	82219.8	1	UniProt (A0A222AI95) Pfam (PF00223) In PDB	Chroomonas placoidea	PsaB
12	C	Photosystem I iron-sulfur center	polymer	81	8743.1	1	UniProt (A0A222AI25) Pfam (PF12838) In PDB	Chroomonas placoidea	9 kDa polypeptide,PSI-C,Photosystem I subunit VII,PsaC
13	D	Photosystem I reaction center subunit II	polymer	141	15590.8	1	UniProt (A0A222AIA6) Pfam (PF02531) In PDB	Chroomonas placoidea
14	E	Photosystem I reaction center subunit IV	polymer	64	7352.4	1	UniProt (A0A222AIF3) Pfam (PF02427) In PDB	Chroomonas placoidea
15	F	Photosystem I reaction center subunit III	polymer	183	20393.5	1	UniProt (A0A222AI52) Pfam (PF02507) In PDB	Chroomonas placoidea	PSI-F
16	I	Photosystem I reaction center subunit VIII	polymer	36	3975.8	1	UniProt (A0A222AI78) Pfam (PF00796) In PDB	Chroomonas placoidea
17	J	Photosystem I reaction center subunit IX	polymer	42	4862.7	1	UniProt (A0A222AI55) Pfam (PF01701) In PDB	Chroomonas placoidea
18	K	Photosystem I reaction center subunit PsaK	polymer	87	8836.4	1	UniProt (A0A222AI34) Pfam (PF01241) In PDB	Chroomonas placoidea	Photosystem I subunit X
19	L	Photosystem I reaction center subunit XI	polymer	153	16490.9	1	UniProt (A0A222AI68) Pfam (PF02605) In PDB	Chroomonas placoidea	PSI subunit V,PSI-L
20	M	Photosystem I reaction center subunit XII	polymer	30	3248.0	1	UniProt (A0A222AI28) Pfam (PF07465) In PDB	Chroomonas placoidea	PSI-M
21	O	PsaO	polymer	99	10766.4	1		Chroomonas placoidea
22	R	PsaR	polymer	133	13867.0	1		Chroomonas placoidea
23	X	Unk1	polymer	164	13975.2	1		Chroomonas placoidea
24	Z	ACPI-S	polymer	242	25645.5	1		Chroomonas placoidea
25	a, d	ACPI-13/10	polymer	215	22271.0	2		Chroomonas placoidea
26	b	ACPI-14	polymer	218	23755.6	1		Chroomonas placoidea
27	c	ACPI-9	polymer	257	27212.1	1		Chroomonas placoidea
28	e	ACPI-11	polymer	208	22451.3	1		Chroomonas placoidea
29	2, 3, 6, 7, A...	CHLOROPHYLL A	non-polymer		893.5	254	Chemie (CLA)
30	7, d, 2, c, 6...	Chlorophyll c2	non-polymer		608.9	20	Chemie (KC2)
31	4, e, 3, 8, a...	(1~{R})-3,5,5-trimethyl-4-[(3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E})-3,7,12,16-tetramethyl-18-[(4~{R})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-3,5,7,9,11,13,15-heptaen-1,17-diynyl]cyclohex-3-en-1-ol	non-polymer		564.8	59	Chemie (II0)
32	1, b, e	(1~{R})-3,5,5-trimethyl-4-[(3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(1~{R},4~{R})-2,6,6-trimethyl-4-oxidanyl-cyclohex-2-en-1-yl]octadeca-3,5,7,9,11,13,15,17-octaen-1-ynyl]cyclohex-3-en-1-ol	non-polymer		566.9	3	Chemie (II3)
33	a, Z, d, 2, K...	(1~{R})-3,5,5-trimethyl-4-[(3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-(2,6,6-trimethylcyclohexen-1-yl)octadeca-3,5,7,9,11,13,15,17-octaen-1-ynyl]cyclohex-3-en-1-ol	non-polymer		550.9	12	Chemie (IHT)
34	8, F, I, 3, 2...	1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE	non-polymer		787.2	7	Chemie (LMG)
35	4, a, 3, 7, d...	1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE	non-polymer		723.0	23	Chemie (LHG)
36	O, 3	1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL	non-polymer		795.1	2	Chemie (SQD)
37	4, I, R, e, J...	(6'R,11cis,11'cis,13cis,15cis)-4',5'-didehydro-5',6'-dihydro-beta,beta-carotene	non-polymer		536.9	25	Chemie (8CT)
38	O, e, 4, J, 7	DODECYL-ALPHA-D-MALTOSIDE	non-polymer		510.6	5	Chemie (LMU)
39	B, A	PHYLLOQUINONE	non-polymer		450.7	2	Chemie (PQN)
40	C, B	IRON/SULFUR CLUSTER	non-polymer		351.6	3	Chemie (SF4)
41	Z, B	DIGALACTOSYL DIACYL GLYCEROL (DGDG)	non-polymer		949.3	2	Chemie (DGD)

Contents of the asymmetric unit

Polymers	Number of chains	29
	Total formula weight	651033.5
Non-Polymers*	Number of molecules	417
	Total formula weight	324319.6
All*	Total formula weight	975353.1

*Water molecules are not included.