Nitrate/nitrite antiporter NarK in nitrate-bound inward-open state
Organism: Escherichia coli
Model: Experimental
Representation: Coarse-grained
Type: α-helical
Pfam Acc: PF07690
PDB ID: 4U4T
Membrane assignment:
Output PDB file Download
Hydrophobic thickness = 39.0 Å
Number of TM segments = 12
Sequence positions:
A: 22-48|58-83|85-110|115-141|151-186|198-222|231-262|269-293|295-319|327-353|385-411|414-438
Tilt angles:
A - Segment: 22-48 - Tilt: 21.1°
A - Segment: 58-83 - Tilt: 25.4°
A - Segment: 85-110 - Tilt: 10.2°
A - Segment: 115-141 - Tilt: 22.0°
A - Segment: 151-186 - Tilt: 29.4°
A - Segment: 198-222 - Tilt: 8.6°
A - Segment: 231-262 - Tilt: 26.3°
A - Segment: 269-293 - Tilt: 13.8°
A - Segment: 295-319 - Tilt: 10.7°
A - Segment: 327-353 - Tilt: 19.2°
A - Segment: 385-411 - Tilt: 18.6°
A - Segment: 414-438 - Tilt: 17.3°
Structural assessment:
MAIDEN score = -99.9647
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]