ABC-transporter BtuCD in complex with its periplasmic binding protein BtuF
Organism: Escherichia coli
Model: Experimental
Representation: Coarse-grained
Type: α-helical
Pfam Acc: PF01032
PDB ID: 2QI9
Membrane assignment:
Output PDB file Download
Hydrophobic thickness = 24.9 Å
Number of TM segments = 20
Sequence positions:
A: 12-28|60-81|83-100|119-136|143-159|191-206|232-248|251-267|274-290|306-323
B: 335-351|387-405|407-422|443-460|466-482|519-532|553-570|576-591|595-614|630-646
Tilt angles:
A - Segment: 12-28 - Tilt: 11.3°
A - Segment: 60-81 - Tilt: 40.5°
A - Segment: 83-100 - Tilt: 35.5°
A - Segment: 119-136 - Tilt: 27.7°
A - Segment: 143-159 - Tilt: 11.8°
A - Segment: 191-206 - Tilt: 9.7°
A - Segment: 232-248 - Tilt: 12.5°
A - Segment: 251-267 - Tilt: 38.4°
A - Segment: 274-290 - Tilt: 20.1°
A - Segment: 306-323 - Tilt: 30.2°
B - Segment: 335-351 - Tilt: 3.0°
B - Segment: 387-405 - Tilt: 34.2°
B - Segment: 407-422 - Tilt: 18.0°
B - Segment: 443-460 - Tilt: 25.5°
B - Segment: 466-482 - Tilt: 21.9°
B - Segment: 519-532 - Tilt: 8.8°
B - Segment: 553-570 - Tilt: 31.4°
B - Segment: 576-591 - Tilt: 37.3°
B - Segment: 595-614 - Tilt: 26.9°
B - Segment: 630-646 - Tilt: 23.1°
Structural assessment:
MAIDEN score = -122.8310
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]