1QX2
X-ray Structure of Calcium-loaded Calbindomodulin (A Calbindin D9k Re-engineered to Undergo a Conformational Opening) at 1.44 A Resolution
Entity
Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
1 | A, B | Vitamin D-dependent calcium-binding protein, intestinal | polymer | 76 | 8518.8 | 2 | UniProt (P02633) Pfam (PF01023) Pfam (PF00036) In PDB | Bos taurus (cattle) | CABP, Calbindin D9K |
2 | A, B | CALCIUM ION | non-polymer | 40.1 | 4 | Chemie (CA) | |||
3 | B | ZINC ION | non-polymer | 65.4 | 2 | Chemie (ZN) | |||
4 | water | water | 18.0 | 213 | Chemie (HOH) |
Sequence modifications
A, B: 1 - 75 (UniProt: P02633)
PDB | External Database | Details |
---|---|---|
Fme 0 | - | initiating methionine |
Ile 6 | Leu 9 | engineered mutation |
Ala 9 | Ile 12 | engineered mutation |
Val 12 | Lys 15 | engineered mutation |
Phe 13 | Tyr 16 | engineered mutation |
Ile 23 | Leu 26 | engineered mutation |
Val 31 | Leu 34 | engineered mutation |
Met 32 | Leu 35 | engineered mutation |
Leu 35 | Glu 38 | engineered mutation |
Gly 36 | Phe 39 | engineered mutation |
Met 43 | Pro 46 | engineered mutation |
Met 49 | Leu 52 | engineered mutation |
Ile 50 | Phe 53 | engineered mutation |
Val 53 | Leu 56 | engineered mutation |
Leu 67 | Gln 70 | engineered mutation |
Met 69 | Leu 72 | engineered mutation |
Met 70 | Val 73 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
Polymers | Number of chains | 2 |
Total formula weight | 17037.5 | |
Non-Polymers* | Number of molecules | 6 |
Total formula weight | 291.1 | |
All* | Total formula weight | 17328.7 |