Vitamin B12 transporter BtuCD-F in a nucleotide-bound state
Organism: Escherichia coli
Model: Experimental
Representation: Atomistic
Type: α-helical
Pfam Acc: PF01032
PDB ID: 4FI3
Membrane assignment:
Output PDB file Download
Hydrophobic thickness = 31.8 Å
Number of TM segments = 16
Sequence positions:
A: 14-34|52-78|83-107|114-135|145-165|175-205|275-297|303-323
B: 16-44|52-78|84-104|115-137|144-164|175-206|276-298|302-322
Tilt angles:
A - Segment: 14-34 - Tilt: 5.7°
A - Segment: 52-78 - Tilt: 39.4°
A - Segment: 83-107 - Tilt: 36.5°
A - Segment: 114-135 - Tilt: 32.4°
A - Segment: 145-165 - Tilt: 10.4°
A - Segment: 175-205 - Tilt: 34.4°
A - Segment: 275-297 - Tilt: 18.9°
A - Segment: 303-323 - Tilt: 29.0°
B - Segment: 16-44 - Tilt: 25.8°
B - Segment: 52-78 - Tilt: 42.5°
B - Segment: 84-104 - Tilt: 30.3°
B - Segment: 115-137 - Tilt: 33.5°
B - Segment: 144-164 - Tilt: 14.0°
B - Segment: 175-206 - Tilt: 35.5°
B - Segment: 276-298 - Tilt: 33.0°
B - Segment: 302-322 - Tilt: 23.0°
Structural assessment:
MAIDEN score = -192.3828
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]