4EKV
Streptavidin 8-aa-loop H127C mutein with reversible biotin binding
Entity
Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
1 | A | Streptavidin | polymer | 159 | 16286.5 | 1 | UniProt (P22629) Pfam (PF01382) In PDB | Streptomyces avidinii | |
2 | A | BIOTIN | non-polymer | 244.3 | 1 | Chemie (BTN) | |||
3 | A | CHLORIDE ION | non-polymer | 35.5 | 1 | Chemie (CL) | |||
4 | water | water | 18.0 | 70 | Chemie (HOH) |
Sequence modifications
A: 1 - 159 (UniProt: P22629)
PDB | External Database | Details |
---|---|---|
Asp 114 | Thr 138 | SEE REMARK 999 |
Ser 115 | Thr 139 | SEE REMARK 999 |
Ser 116 | Glu 140 | SEE REMARK 999 |
Asn 117 | Ala 141 | SEE REMARK 999 |
Gly 118 | Asn 142 | SEE REMARK 999 |
Ser 119 | Ala 143 | SEE REMARK 999 |
Asp 120 | Trp 144 | SEE REMARK 999 |
Gly 121 | Lys 145 | SEE REMARK 999 |
Cys 127 | His 151 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
Polymers | Number of chains | 1 |
Total formula weight | 16286.5 | |
Non-Polymers* | Number of molecules | 2 |
Total formula weight | 279.8 | |
All* | Total formula weight | 16566.3 |