4EQB
1.5 Angstrom Crystal Structure of Spermidine/Putrescine ABC Transporter Substrate-Binding Protein PotD from Streptococcus pneumoniae strain Canada MDR_19A in Complex with Calcium and HEPES
Entity
Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
1 | A, B | Spermidine/putrescine ABC superfamily ATP binding cassette transporter, binding protein | polymer | 330 | 38148.8 | 2 | UniProt (D6ZS00) In PDB | Streptococcus pneumoniae TCH8431 | |
2 | A, B | CALCIUM ION | non-polymer | 40.1 | 8 | Chemie (CA) | |||
3 | A, B | CHLORIDE ION | non-polymer | 35.5 | 2 | Chemie (CL) | |||
4 | A, B | 4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID | non-polymer | 238.3 | 2 | Chemie (EPE) | |||
5 | A | DI(HYDROXYETHYL)ETHER | non-polymer | 106.1 | 1 | Chemie (PEG) | |||
6 | water | water | 18.0 | 969 | Chemie (HOH) |
Sequence modifications
A, B: 30 - 356 (UniProt: D6ZS00)
PDB | External Database | Details |
---|---|---|
Ser 27 | - | expression tag |
Asn 28 | - | expression tag |
Ala 29 | - | expression tag |
Sequence viewer
Contents of the asymmetric unit
Polymers | Number of chains | 2 |
Total formula weight | 76297.6 | |
Non-Polymers* | Number of molecules | 13 |
Total formula weight | 974.3 | |
All* | Total formula weight | 77271.8 |