6JEO

Structure of PSI tetramer from Anabaena

This is a non-PDB format compatible entry.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, KA, M, Y (aA, bA, cA, dA)	Photosystem I P700 chlorophyll a apoprotein A1	polymer	752	83289.7	4	UniProt (P58576) Pfam (PF00223)	Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576)	PsaA
2	B, LA, N, Z (aB, bB, cB, dB)	Photosystem I P700 chlorophyll a apoprotein A2 1	polymer	741	83457.0	4	UniProt (P58565) Pfam (PF00223)	Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576)	PsaB 1
3	AA, C, MA, O (aC, bC, cC, dC)	Photosystem I iron-sulfur center	polymer	81	8825.2	4	UniProt (P0A410) Pfam (PF12838)	Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576)	9 kDa polypeptide,PSI-C,Photosystem I subunit VII,PsaC
4	BA, D, NA, P (aD, bD, cD, dD)	Photosystem I reaction center subunit II	polymer	139	15176.2	4	UniProt (P58573) Pfam (PF02531)	Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576)
5	CA, E, OA, Q (aE, bE, cE, dE)	Photosystem I reaction center subunit IV	polymer	70	7897.1	4	UniProt (P58575) Pfam (PF02427)	Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576)
6	DA, F, PA, R (aF, bF, cF, dF)	Photosystem I reaction center subunit III	polymer	164	17850.6	4	UniProt (P58564) Pfam (PF02507)	Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576)	PSI-F
7	EA, G, QA, S (aI, bI, cI, dI)	Photosystem I reaction center subunit VIII	polymer	46	5066.9	4	UniProt (P58560) Pfam (PF00796)	Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576)
8	FA, H, RA, T (aJ, bJ, cJ, dJ)	Photosystem I reaction center subunit IX	polymer	49	5499.4	4	UniProt (P58568) Pfam (PF01701)	Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576)
9	GA, I, SA, U (aK, bK, cK, dK)	Photosystem I reaction center subunit PsaK 1	polymer	86	8852.5	4	UniProt (P58583) Pfam (PF01241)	Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576)	Photosystem I subunit X 1
10	HA, J, TA, V (aL, bL, cL, dL)	Photosystem I reaction center subunit XI	polymer	172	18130.7	4	UniProt (P58577) Pfam (PF02605)	Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576)	PSI subunit V,PSI-L
11	IA, K, UA, W (aM, bM, cM, dM)	Photosystem I reaction center subunit XII	polymer	40	4424.3	4	UniProt (Q8YNB0) Pfam (PF07465)	Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576)	PSI-M
12	JA, L, VA, X (aX, bX, cX, dX)	Photosystem I 4.8 kDa protein	polymer	44	4872.8	4	UniProt (P58566) Pfam (PF08078)	Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576)
13	JP, OK, RF, WA (dA, cA, bA, aA)	CHLOROPHYLL A ISOMER	non-polymer		893.5	4	Chemie (CL0)
14	AB, AC, AD, AE, AF... (aA, aB, aF, bA, bB...)	CHLOROPHYLL A	non-polymer		893.5	376	Chemie (CLA)
15	EO, FM, GJ, HH, ME... (cB, cA, bB, bA, aB...)	PHYLLOQUINONE	non-polymer		450.7	8	Chemie (PQN)
16	AR, GM, IH, IT, JT... (dA, cA, bA, dC, aA...)	IRON/SULFUR CLUSTER	non-polymer		351.6	12	Chemie (SF4)
17	AK, AT, BF, BP, BR... (bJ, dB, aF, cL, dA...)	BETA-CAROTENE	non-polymer		536.9	88	Chemie (BCR)
18	GR, GT, HR, MO, NM... (dA, dB, cB, cA, bA...)	1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE	non-polymer		723.0	12	Chemie (LHG)
19	FT, LO, NJ, TE (dB, cB, bB, aB)	1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE	non-polymer		787.2	4	Chemie (LMG)

Sequence modifications

aM, bM, cM, dM: 10 - 40 (UniProt: Q8YNB0)

PDB	External Database	Details
Met 1	-	see sequence details
Pro 2	-	see sequence details
Thr 3	-	see sequence details
Leu 4	-	see sequence details
Tyr 5	-	see sequence details
Leu 6	-	see sequence details
Ala 7	-	see sequence details
Gln 8	-	see sequence details
Val 9	-	see sequence details

Contents of the asymmetric unit

Polymers	Number of chains	48
	Total formula weight	1053369.3
Non-Polymers*	Number of molecules	504
	Total formula weight	406420.2
All*	Total formula weight	1459789.5

*Water molecules are not included.