X-ray diffraction
1.9Å resolution

Structure of Cid1 in complex with the UTP analog UMPNPP


Function and Biology Details

Reactions catalysed:
UTP + RNA(n) = diphosphate + RNA(n+1)
ATP + RNA(n) = diphosphate + RNA(n+1)
Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Terminal uridylyltransferase cid1 Chains: A, B
Molecule details ›
Chains: A, B
Length: 341 amino acids
Theoretical weight: 38.98 KDa
Source organism: Schizosaccharomyces pombe
Expression system: Escherichia coli BL21
  • Canonical: O13833 (Residues: 40-377; Coverage: 84%)
Gene names: SPAC19D5.03, cid1
Sequence domains:
Structure domains:

Ligands and Environments

3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-4
Spacegroup: P21
Unit cell:
a: 53.77Å b: 77.32Å c: 82.11Å
α: 90° β: 90.86° γ: 90°
R R work R free
0.18 0.179 0.212
Expression system: Escherichia coli BL21