1GTR: Glutaminyl-tRNA synthetase

Structural basis of anticodon loop recognition by glutaminyl-tRNA synthetase. Determined by X-ray diffraction at 2.5 Å resolution. Released 7 Feb 1995.

Method
X-ray diffraction
Resolution
2.5 Å
Organism
Escherichia coli
Chains
2
Atoms
6,114
Mol. weight
87.7 kDa
Ligands
ATP
Released
7 Feb 1995

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

Secondary structure: helices and β-sheets

1GTR contains 25 α-helices and 38 β-strands across 1 chain. 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: 25 helices, 38 β-strands

ElementResiduesLengthSheet
α-helix10-2112
β-strand28-3141
β-strand4012
α-helix41-5616
β-strand60-6341
β-strand64-6523
α-helix70-723
α-helix75-8713
α-helix961
β-strand97-9823
α-helix99-1024
α-helix103-11513
β-strand119-12244
α-helix126-1327
α-helix150-16213
β-strand171-17444
α-helix183-1853
β-strand189-19354
β-strand19815
β-strand20215
β-strand207-20934
α-helix211-22212
β-strand226-23056
α-helix231-2333
α-helix237-24610
β-strand254-25856
α-helix259-2613
β-strand26317
α-helix270-2789
β-strand29212
α-helix293-2997
α-helix303-31311
β-strand32217
α-helix324-33815
α-helix339-3402
β-strand341-34228
β-strand344-34528
β-strand348-35369
β-strand361-366610
α-helix372-3743
β-strand376-381610
β-strand384-38859
α-helix389-3913
β-strand392-393211
β-strand403-404211
β-strand408-411412
β-strand416-418312
β-strand419-42469
β-strand430-43569
β-strand455-456212
β-strand459-46029
α-helix4641
β-strand465-47288
β-strand476113
α-helix481-4833
α-helix488-4903
β-strand491113
β-strand496-50388
α-helix505-5095
β-strand51218
β-strand515-51848
β-strand522-52658
β-strand537-54378

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
RNA (74-mer)BRNA74
Glutaminyl-tRNA synthetaseAprotein553Escherichia coliP00962 (AlphaFold model)
Sequence of entity 1 (B), FASTA
>1GTR_1 RNA (74-MER) (chains B)
GGGGUAUCGCCAAGCGGUAAGGCACCGGAUUCUGAUUCCGGCAUUCCGAGGUUCGAAUCC
UCGUACCCCAGCCA
Sequence of entity 2 (A), FASTA
>1GTR_2 GLUTAMINYL-tRNA SYNTHETASE (chains A)
SEAEARPTNFIRQIIDEDLASGKHTTVHTRFPPEPNGYLHIGHAKSICLNFGIAQDYKGQ
CNLRFDDTNPVKEDIEYVESIKNDVEWLGFHWSGNVRYSSDYFDQLHAYAIELINKGLAY
VDELTPEQIREYRGTLTQPGKNSPYRDRSVEENLALFEKMRAGGFEEGKACLRAKIDMAS
PFIVMRDPVLYRIKFAEHHQTGNKWCIYPMYDFTHCISDALEGITHSLCTLEFQDNRRLY
DWVLDNITIPVHPRQYEFSRLNLEYTVMSKRKLNLLVTDKHVEGWDDPRMPTISGLRRRG
YTAASIREFCKRIGVTKQDNTIEMASLESCIREDLNENAPRAMAVIDPVKLVIENYQGEG
EMVTMPNHPNKPEMGSRQVPFSGEIWIDRADFREEANKQYKRLVLGKEVRLRNAYVIKAE
RVEKDAEGNITTIFCTYDADTLSKDPADGRKVKGVIHWVSAAHALPVEIRLYDRLFSVPN
PGAADDFLSVINPESLVIKQGFAEPSLKDAVAGKAFQFEREGYFCLDSRHSTAEKPVFNR
TVGLRDTWAKVGE

Ligands and cofactors

IDNameFormulaCopies
ATPAdenosine-5'-triphosphateC10 H16 N5 O13 P31

Primary citation

Structural basis of anticodon loop recognition by glutaminyl-tRNA synthetase. Rould, M.A., Perona, J.J., Steitz, T.A. Nature (1991) 352:213-218. DOI 10.1038/352213a0 · PubMed

Other PDB entries of the same protein (UniProt P00962 (AlphaFold model), which also has an AlphaFold model), best resolution first:

Browse structure collections

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