National Center for
Biotechnology Information

2AXT: Crystal Structure of Photosystem II from Thermosynechococcus elongatus

PDB ID:

MMDB ID:

36695

PDB Deposition Date:

2005/9/6

Updated in MMDB:

2012/12

Experimental Method:

x-ray diffraction

Resolution:

3 Å

Source Organism:

Thermosynechococcus vestitus BP-1▼

Taxonomy	Molecule
Thermosynechococcus vestitus BP-1	B, C, D, b, c, d
Thermosynechococcus vestitus	A, E, F, H, I, J, K, L, M, O, T, U, V, X, Z, a, e, f, h, i, j, k, l, m, o, t, u, v, x, z

Similar Structures:

Biological Unit for 2AXT: 36-meric; determined by author

Molecular Components in 2AXT
Label	Count	Molecule
Proteins (36 molecules)
A a	2	Photosystem Q(b) Protein
B b	2	Cp47 Protein
C c	2	Photosystem II Cp43 Protein
D d	2	Photosystem II Reaction Center D2 Protein
E e	2	Cytochrome B559 Alpha Subunit
F f	2	Cytochrome B559 Beta Subunit
H h	2	Photosystem II Reaction Center H Protein
I i	2	Photosystem II Reaction Center I Protein
J j	2	Photosystem II Reaction Center J Protein
K k	2	Photosystem II Reaction Center Protein K
L l	2	Photosystem II Reaction Center L Protein
M m	2	Photosystem II Reaction Center M Protein
O o	2	Photosystem II Manganese-stabilizing Polypeptide
T t	2	Photosystem II Reaction Center T Protein
U u	2	Photosystem II 12 KDA Extrinsic Protein
V v	2	Cytochrome C-550
X x	2	Unassigned Subunits
Z z	2	Photosystem II Reaction Center Z Protein
Chemicals and Non-standard biopolymers (180 molecules)
1	2	FE (II) ION
2	70	CHLOROPHYLL A
3	4	PHEOPHYTIN A
4	4	5-[(2E,6E,10E,14E,18E,22E)-3,7,11,15,19,23,27-HEPTAMETHYLOCTACOSA-2,6,10,14,18,22,26-HEPTAENYL]-2,3-DIMETHYLBENZO-1,4-QUINONE
5	2	OXYGEN EVOLVING SYSTEM
6	22	BETA-CAROTENE
7	2	1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE
8	6	1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL
9	6	DODECYL-BETA-D-MALTOSIDE
10	12	(1S)-2-(ALPHA-L-ALLOPYRANOSYLOXY)-1-[(TRIDECANOYLOXY)METHYL]ETHYL PALMITATE
11	34	UNKNOWN LIGAND
12	8	DIGALACTOSYL DIACYL GLYCEROL (DGDG)
13	2	BICARBONATE ION
14	4	PROTOPORPHYRIN IX CONTAINING FE
15	2	CALCIUM ION