Oxygen-evolving photosystem II from a red alga
Organism: Cyanidium caldarium
Model: Experimental
Representation: Atomistic
Type: α-helical
Pfam Acc: PF00421
PDB ID: 4YUU
Membrane assignment:
Output PDB file Download
Hydrophobic thickness = 25.5 Å
Number of TM segments = 69
Sequence positions:
A: 30-50|114-131|142-160|195-214|274-292
C: 52-68|114-130|160-177|236-253|271-287|428-445
B: 20-37|96-112|139-157|200-216|237-253|454-470
E: 20-37
D: 32-53|112-129|142-159|195-214|270-287
G: 29-46
F: 20-38
I: 12-29
H: 3-24
K: 16-32
J: 21-38
L: 8-24
N: 4-22
Q: 19-36
S: 10-27
R: 10-27
U: 30-50|114-132|142-160|195-214|274-292
T: 4-20
W: 50-67|114-130|158-174|237-254|271-287|428-445
V: 22-38|95-112|141-158|198-214|238-254|452-469
X: 33-53|110-128|142-159|195-214|270-287
Z: 20-39
a: 30-47
c: 12-29
b: 6-24
e: 16-32
d: 20-38
f: 8-24
h: 4-22
k: 19-35
m: 11-28
l: 7-25
n: 2-19
Tilt angles:
A - Segment: 30-50 - Tilt: 27.9°
A - Segment: 114-131 - Tilt: 24.7°
A - Segment: 142-160 - Tilt: 9.0°
A - Segment: 195-214 - Tilt: 34.7°
A - Segment: 274-292 - Tilt: 26.9°
C - Segment: 52-68 - Tilt: 11.9°
C - Segment: 114-130 - Tilt: 18.5°
C - Segment: 160-177 - Tilt: 19.6°
C - Segment: 236-253 - Tilt: 15.7°
C - Segment: 271-287 - Tilt: 14.7°
C - Segment: 428-445 - Tilt: 22.3°
B - Segment: 20-37 - Tilt: 17.9°
B - Segment: 96-112 - Tilt: 19.1°
B - Segment: 139-157 - Tilt: 23.1°
B - Segment: 200-216 - Tilt: 5.8°
B - Segment: 237-253 - Tilt: 12.5°
B - Segment: 454-470 - Tilt: 23.0°
E - Segment: 20-37 - Tilt: 19.9°
D - Segment: 32-53 - Tilt: 40.3°
D - Segment: 112-129 - Tilt: 18.7°
D - Segment: 142-159 - Tilt: 18.8°
D - Segment: 195-214 - Tilt: 33.6°
D - Segment: 270-287 - Tilt: 31.6°
G - Segment: 29-46 - Tilt: 22.7°
F - Segment: 20-38 - Tilt: 33.3°
I - Segment: 12-29 - Tilt: 21.1°
H - Segment: 3-24 - Tilt: 36.3°
K - Segment: 16-32 - Tilt: 4.9°
J - Segment: 21-38 - Tilt: 32.2°
L - Segment: 8-24 - Tilt: 6.5°
N - Segment: 4-22 - Tilt: 21.9°
Q - Segment: 19-36 - Tilt: 18.2°
S - Segment: 10-27 - Tilt: 15.8°
R - Segment: 10-27 - Tilt: 27.6°
U - Segment: 30-50 - Tilt: 29.2°
U - Segment: 114-132 - Tilt: 17.1°
U - Segment: 142-160 - Tilt: 6.5°
U - Segment: 195-214 - Tilt: 33.0°
U - Segment: 274-292 - Tilt: 24.6°
T - Segment: 4-20 - Tilt: 3.5°
W - Segment: 50-67 - Tilt: 24.2°
W - Segment: 114-130 - Tilt: 15.9°
W - Segment: 158-174 - Tilt: 27.3°
W - Segment: 237-254 - Tilt: 18.6°
W - Segment: 271-287 - Tilt: 17.3°
W - Segment: 428-445 - Tilt: 24.6°
V - Segment: 22-38 - Tilt: 10.1°
V - Segment: 95-112 - Tilt: 20.5°
V - Segment: 141-158 - Tilt: 7.6°
V - Segment: 198-214 - Tilt: 15.1°
V - Segment: 238-254 - Tilt: 16.2°
V - Segment: 452-469 - Tilt: 6.7°
X - Segment: 33-53 - Tilt: 40.3°
X - Segment: 110-128 - Tilt: 21.5°
X - Segment: 142-159 - Tilt: 20.9°
X - Segment: 195-214 - Tilt: 35.0°
X - Segment: 270-287 - Tilt: 33.9°
Z - Segment: 20-39 - Tilt: 28.4°
a - Segment: 30-47 - Tilt: 22.9°
c - Segment: 12-29 - Tilt: 21.2°
b - Segment: 6-24 - Tilt: 33.1°
e - Segment: 16-32 - Tilt: 5.5°
d - Segment: 20-38 - Tilt: 25.8°
f - Segment: 8-24 - Tilt: 5.4°
h - Segment: 4-22 - Tilt: 23.4°
k - Segment: 19-35 - Tilt: 22.9°
m - Segment: 11-28 - Tilt: 18.3°
l - Segment: 7-25 - Tilt: 23.9°
n - Segment: 2-19 - Tilt: 24.2°
Structural assessment:
MAIDEN score = -752.3599
The MAIDEN score is aimed at assessing the relative quality, i.e. ranking several models (the lower the score, the better the model). It comes here with a color code (red > yellow > green > blue), which is derived from a z-score calculation and indicates the absolute quality.
Scores for all residue pairs Download
[creation date: Sep-08-2016]