PDBe 4d2c

X-ray diffraction
2.47Å resolution

Structure of a di peptide bound POT family peptide transporter

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
L-ALANINE-L-PHENYLALANINE Chain: D
Molecule details ›
Chain: D
Length: 2 amino acids
Theoretical weight: 236 Da
Source organism: synthetic construct
Expression system: Not provided
Di-or tripeptide:H+ symporter Chain: A
Molecule details ›
Chain: A
Length: 491 amino acids
Theoretical weight: 53.72 KDa
Source organism: Streptococcus thermophilus LMG 18311
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q5M4H8 (Residues: 1-483; Coverage: 100%)
Gene names: dtpT, stu0970
Sequence domains: POT family

Ligands and Environments

3 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: DIAMOND BEAMLINE I24
Spacegroup: C2221
Unit cell:
a: 102.06Å b: 110.33Å c: 110.74Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.225 0.222 0.266
Expression systems:
  • Not provided
  • Escherichia coli BL21(DE3)