4KI0
Crystal structure of the maltose-binding protein/maltose transporter complex in an outward-facing conformation bound to maltohexaose
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B (A, B) | ABC transporter related protein | polymer | 381 | 42184.5 | 2 | UniProt (C9QV42) Pfam (PF00005) Pfam (PF08402) UniProt (by SIFTS) (P68187) | Escherichia coli | Maltose ABC-type transport systems, ATP-binding component |
| 2 | C (E) | Maltose-binding periplasmic protein | polymer | 380 | 41898.3 | 1 | UniProt (P0AEX9) Pfam (PF01547) | Escherichia coli | MBP, MMBP, Maltodextrin-binding protein |
| 3 | D (F) | Maltose transport system permease protein MalF | polymer | 514 | 57052.9 | 1 | UniProt (P02916) Pfam (PF20872) Pfam (PF14785) Pfam (PF00528) | Escherichia coli | |
| 4 | E (G) | Binding-protein-dependent transport systems inner membrane component | polymer | 296 | 32246.2 | 1 | UniProt (C9QV46) Pfam (PF00528) UniProt (by SIFTS) (P68183) | Escherichia coli | Part of maltose permease, inner membrane component |
| 5 | F (C) | alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose | branched | 666.6 | 1 | In PDB BIRD (PRD_900010) GlyTouCan (G87171PZ) | alpha-maltotetraose | ||
| 6 | G, I (A, B) | MAGNESIUM ION | non-polymer | 24.3 | 2 | Chemie (MG) | |||
| 7 | H, J (A, B) | PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER | non-polymer | 506.2 | 2 | Chemie (ANP) | |||
| 8 | K, N, O, P, Q... (E, F, G) | UNDECYL-MALTOSIDE | non-polymer | 496.6 | 11 | Chemie (UMQ) | |||
| 9 | L, M (F) | (1R)-2-{[{[(2S)-2,3-DIHYDROXYPROPYL]OXY}(HYDROXY)PHOSPHORYL]OXY}-1-[(PALMITOYLOXY)METHYL]ETHYL (11E)-OCTADEC-11-ENOATE | non-polymer | 749.0 | 2 | Chemie (PGV) | |||
| 10 | AA, BA, X, Y, Z (F, G, A, B, E) | water | water | 18.0 | 508 | Chemie (HOH) |
Sequence modifications
A, B: 1 - 371 (UniProt: C9QV42)
E: 1 - 370 (UniProt: P0AEX9)
| PDB | External Database | Details |
|---|---|---|
| Ala 372 | - | expression tag |
| Ser 373 | - | expression tag |
| Ala 374 | - | expression tag |
| Ser 375 | - | expression tag |
| His 376 | - | expression tag |
| His 377 | - | expression tag |
| His 378 | - | expression tag |
| His 379 | - | expression tag |
| His 380 | - | expression tag |
| His 381 | - | expression tag |
| PDB | External Database | Details |
|---|---|---|
| Ala 371 | - | expression tag |
| Ser 372 | - | expression tag |
| Ala 373 | - | expression tag |
| Ser 374 | - | expression tag |
| His 375 | - | expression tag |
| His 376 | - | expression tag |
| His 377 | - | expression tag |
| His 378 | - | expression tag |
| His 379 | - | expression tag |
| His 380 | - | expression tag |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 5 |
| Total formula weight | 215566.5 | |
| Branched | Number of molecules | 1 |
| Total formula weight | 666.6 | |
| Non-Polymers* | Number of molecules | 17 |
| Total formula weight | 8021.5 | |
| All* | Total formula weight | 224254.6 |
