4CEI
Crystal structure of ADPNP-bound AddAB with a forked DNA substrate
Entity
Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
1 | A | ATP-DEPENDENT HELICASE/NUCLEASE SUBUNIT A | polymer | 1232 | 141218.8 | 1 | UniProt (P23478) Pfam (PF00580) Pfam (PF13361) Pfam (PF12705) In PDB | BACILLUS SUBTILIS SUBSP. SUBTILIS STR. 168 | ATP-DEPENDENT HELICAS E-NUCLEASE SUBUNIT A |
2 | B | ATP-DEPENDENT HELICASE/DEOXYRIBONUCLEASE SUBUNIT B | polymer | 1166 | 134769.4 | 1 | UniProt (P23477) Pfam (PF21445) Pfam (PF13361) Pfam (PF12705) In PDB | BACILLUS SUBTILIS SUBSP. SUBTILIS STR. 168 | ATP-DEPENDENT HELICAS E-NUCLEASE SUBUNIT B |
3 | X | DNA | polymer | 65 | 19956.7 | 1 | SYNTHETIC CONSTRUCT | ||
4 | A, B | PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER | non-polymer | 506.2 | 2 | Chemie (ANP) | |||
5 | A, B | MAGNESIUM ION | non-polymer | 24.3 | 2 | Chemie (MG) | |||
6 | B | IRON/SULFUR CLUSTER | non-polymer | 351.6 | 1 | Chemie (SF4) | |||
7 | water | water | 18.0 | 8 | Chemie (HOH) |
Sequence modifications
A: 1 - 1232 (UniProt: P23478)
B: 1 - 1166 (UniProt: P23477)
PDB | External Database | Details |
---|---|---|
Gly 780 | Ala 780 | variant |
Ala 1172 | Asp 1172 | engineered mutation |
PDB | External Database | Details |
---|---|---|
Asp 843 | Glu 843 | variant |
Glu 844 | Gln 844 | variant |
Ala 961 | Asp 961 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
Polymers | Number of chains | 3 |
Total formula weight | 295945.0 | |
Non-Polymers* | Number of molecules | 5 |
Total formula weight | 1412.6 | |
All* | Total formula weight | 297357.6 |