1LQJ: Escherichia coli uracil-DNA glycosylase

Escherichia coli uracil-DNA glycosylase. Determined by X-ray diffraction at 3.35 Å resolution. Released 10 Nov 2002.

Method
X-ray diffraction
Resolution
3.35 Å
Organism
Escherichia coli
Chains
4
Atoms
7,329
Mol. weight
102.9 kDa
Released
10 Nov 2002

Explore 1LQJ in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

1LQJ contains 49 α-helices and 29 β-strands across 4 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain A: 10 helices, 7 β-strands

ElementResiduesLengthSheet
α-helix18-3316
β-strand37-3821
α-helix41-444
α-helix46-505
α-helix53-553
β-strand58-6252
α-helix87-9913
α-helix112-1154
β-strand119-12352
β-strand128-12921
β-strand13211
α-helix141-15414
β-strand160-16452
α-helix166-1716
β-strand181-18552
α-helix202-21211
α-helix215-2184
Chain B: 13 helices, 7 β-strands
ElementResiduesLengthSheet
α-helix7-104
α-helix14-163
α-helix19-3214
β-strand37-3823
α-helix46-505
α-helix53-553
β-strand58-6254
α-helix87-9913
α-helix112-1154
β-strand119-12354
β-strand128-12923
β-strand13213
α-helix141-15515
β-strand160-16454
α-helix168-1714
α-helix172-1743
β-strand181-18554
α-helix193-1953
α-helix202-21211
α-helix216-2183
Chain C: 14 helices, 8 β-strands
ElementResiduesLengthSheet
α-helix7-104
α-helix14-163
α-helix18-3215
β-strand37-3825
α-helix46-505
α-helix53-553
β-strand58-6256
β-strand7217
α-helix781
β-strand7917
α-helix801
α-helix84-863
α-helix87-9812
α-helix115-1173
β-strand119-12356
β-strand128-12925
α-helix141-15414
β-strand160-16456
α-helix165-1717
β-strand181-18556
α-helix193-1953
α-helix202-21211
Chain D: 12 helices, 7 β-strands
ElementResiduesLengthSheet
α-helix7-104
α-helix14-163
α-helix18-3215
β-strand37-3828
α-helix41-433
α-helix46-505
β-strand58-6259
α-helix79-802
α-helix87-9913
α-helix112-1154
β-strand119-12359
β-strand128-12928
β-strand13218
α-helix141-15515
β-strand160-16459
α-helix165-1728
β-strand181-18559
α-helix193-1953
α-helix202-21211

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Uracil-DNA glycosylaseA, B, C, Dprotein229Escherichia coliP12295 (AlphaFold model)
Sequence of entity 1 (A, B, C, D), FASTA
>1LQJ_1 URACIL-DNA GLYCOSYLASE (chains A, B, C, D)
MANELTWHDVLAEEKQQPYFLNTLQTVASERQSGVTIYPPQKDVFNAFRFTELGDVKVVI
LGQDPYHGPGQAHGLAFSVRPGIAIPPSLLNMYKELENTIPGFTRPNHGYLESWARQGVL
LLNTVLTVRAGQAHSHASLGWETFTDKVISLINQHREGVVFLLWGSHAQKKGAIIDKQRH
HVLKAPHPSPLSAHRGFFGCNHFVLANQWLEQRGETPIDWMPVLPAESE

Primary citation

Domain closure and action of uracil DNA glycosylase (UDG): structures of new crystal forms containing the Escherichia coli enzyme and a comparative study of the known structures involving UDG. Saikrishnan, K., Bidya Sagar, M., Ravishankar, R. et al. Acta Crystallogr D Biol Crystallogr (2002) 58:1269-1276. DOI 10.1107/S0907444902009599 · PubMed

Other PDB entries of the same protein (UniProt P12295 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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