7cji : EncoMPASS

7cji
General information about the complete biological unit of each membrane protein structure.

The orientation in the lipid bilayer is either taken directly from OPM or generated using the related routine PPM; the title is taken from the OPM database. However, the structure shown may be modified from the coordinate file retrievable from OPM or the PDB, because of inconsistencies with the definition of the biological unit. The coordinate file is downloadable, as is a PyMOL script for visualizing the structure.

Photosystem II in the S1 state

Number of Chains: 39
Number of TM Chains: 33
Amino Acids: 5283
Method: X-RAY DIFFRACTION
Resolution: 2.35 Å
Uniprot: P51765       D0VWR1       D0VWR7       D0VWR8       P12238       P12239       P19052       P12240       Q7DGD4       P19054       P12241       P12312       D0VWR2       P0DM37       P12313       P56152       P0A387       D0VWR4       D0VWR3       D0VWR5      
Links: PDB      OPM      PDBTM 
Coordinates The structure shown may be modified from the coordinate file retrievable from OPM or from the PDB because of inconsistencies with the definition of the biological unit.

Structure Relationships
A list of chains contained in the biological unit and their relationships to other structures in the database.

Details include: (i) the predominant secondary structure (alpha or beta), (ii) the number of transmembrane regions according to our algorithm, and (iii-v) the number of neighbors according to comparisons using sequence (iii), structure (iv), or both (v).

Two chains are designated sequence neighbors when the sequence identity in the MUSCLE alignment is ≥0.85. Two chains are assigned as structural neighbors when the Fr-TM-Align structure alignment led to a TM-score of ≥0.6.

Member Class TM Domains Seq Neighbors Struct Neighbors All Neighbors Symmetry
7cji_A alpha 5 119 511 511 C2
7cji_B alpha 6 110 279 279 C3
7cji_C alpha 6 110 279 279 C3
7cji_D alpha 5 119 511 511 C2
7cji_E alpha 1 110 340 340 na
7cji_F alpha 1 111 226 228 na
7cji_H alpha 1 110 1010 1010 na
7cji_I alpha 1 110 551 551 na
7cji_J alpha 1 105 883 884 na
7cji_K alpha 1 110 118 118 na
7cji_L alpha 1 111 257 257 na
7cji_M alpha 1 110 226 265 na
7cji_R alpha 1 52 72 72 na
7cji_T alpha 1 110 222 222 na
7cji_X alpha 1 108 1013 1013 na
7cji_Y alpha 1 107 115 124 na
7cji_Z alpha 2 108 139 139 na
7cji_a alpha 5 119 511 511 C2
7cji_b alpha 6 110 279 279 C3
7cji_c alpha 6 110 279 279 C3
7cji_d alpha 5 119 511 511 C2
7cji_e alpha 1 110 286 286 na
7cji_f alpha 1 111 242 243 na
7cji_h alpha 1 110 1010 1010 na
7cji_i alpha 1 110 551 551 na
7cji_j alpha 1 105 773 773 na
7cji_k alpha 1 110 118 118 na
7cji_l alpha 1 111 257 257 na
7cji_m alpha 1 110 198 239 na
7cji_t alpha 1 110 222 222 na
7cji_x alpha 1 108 1013 1013 na
7cji_y alpha 1 107 115 124 na
7cji_z alpha 2 108 139 139 na

Standard Symmetry Detection
Raw output from two symmetry detection programs: CE-Symm and SymD.

Structures were processed using CE-Symm and SymD with default options. For CE-Symm, if no symmetry was detected (reported as Order = C1), no image is provided. When symmetry is detected, different colors are used to represent the repeated elements with respect to a given symmetry axis and the PyMOL script for generating the representations is provided. [Note that CE-Symm calculations were carried out with a random seed of 3, 5, or 10, from which the result with the highest number of repeats and/or highest number of aligned residues is reported.]

For SymD, which does not report repeats information, the aligned residues (capital letters in the FASTA files) are colored blue and the accompanying PyMOL script generates this representation. [Note that SymD does not report symmetry order and so here, the order has been predicted based on the unit angle provided by the program.]

To interpret the repeat definitions, see the FAQ.

CE-Symm   2.2

Order: C1
Angle: 178.78
Translation: 0.28
RMSD: 33.33
TM-Score: 0.02
Coverage: 0.01
See additional CE-Symm data
View alignment(s)

SymD   1.6

Order: 2
Angle: 180.0
Translation: 0.0
RMSD: 0.48
TM-Score: 0.99
Coverage: 0.99
See additional SymD data
View alignment(s)

Multi-step Symmetry Detection
Consensus results from processing with SymD, CE-Symm and QuatSymm with default and customized parameters

These results were filtered using rules that take into account the restraints imposed by the membrane environment (e.g., an alpha-helical repeat should contain at least two transmembrane spans to be functionally relevant) and that consider coverage and symmetry levels. Only symmetries between repeats that are at least partially located in the membrane are considered. Note that for multi-chain complexes the order of the chains is important for symmetry detection and is therefore also reported.

Chain Order: B;b;C;c;E;e;H;h;K;k;L;l;Z;z;
Order: C2
Angle: 180.0
Translation: 0.0
RMSD: 0.32
TM-Score: 0.57
Coverage: 0.57
Aligned Residues: 2466
Number of Repeats: 2
Repeat Length: 1233
Levels: 1
Topology: Parallel
Angle with Membrane Normal: -89.93
Repeats:
View alignment(s)