6Y8P: O6-alkylguanine-DNA alkyltransferase mutant

Crystal structure of SNAP-tag labeled with a benzyl-tetramethylrhodamine fluorophore. Determined by X-ray diffraction at 2.3 Å resolution. Released 31 Mar 2021.

Method
X-ray diffraction
Resolution
2.3 Å
Organism
Homo sapiens
Chains
1
Atoms
1,326
Mol. weight
19.61 kDa
Ligands
ZN, OGQ
Released
31 Mar 2021

Explore 6Y8P in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

6Y8P contains 9 α-helices and 10 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: 9 helices, 10 β-strands

ElementResiduesLengthSheet
β-strand8-1031
β-strand13-1532
β-strand17-1822
β-strand19-2351
β-strand28-3361
α-helix57-7115
α-helix73-786
α-helix80-834
β-strand8411
α-helix87-893
α-helix94-10512
β-strand112-11323
α-helix114-1207
α-helix127-1359
β-strand14014
β-strand14314
α-helix145-1473
β-strand148-14923
α-helix162-17110

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
O6-alkylguanine-DNA alkyltransferase mutantAprotein177Homo sapiensE5BBQ0 (AlphaFold model)
Sequence of entity 1 (A), FASTA
>6Y8P_1 O6-alkylguanine-DNA alkyltransferase mutant (chains A)
GDCEMKRTTLDSPLGKLELSGCEQGLHEIIFLGKGTSAADAVEVPAPAAVLGGPEPLMQA
TAWLNAYFHQPEAIEEFPVPALHHPVFQQESFTRQVLWKLLKVVKFGEVISYSHLAALAG
NPAATAAVKTALSGNPVPILIPCHRVVQGDLDVGGYEGGLAVKEWLLAHEGHRLGKR

Ligands and cofactors

IDNameFormulaCopies
ZNZinc ionZn1
OGQ[9-[2-carboxy-5-[(4-methylphenyl)methylcarbamoyl]phenyl]-6-(dimethylamino)xanth…C33 H32 N3 O41

Water and common crystallization additives (EDO) are not listed.

Primary citation

Kinetic and Structural Characterization of the Self-Labeling Protein Tags HaloTag7, SNAP-tag, and CLIP-tag. Wilhelm, J., Kuhn, S., Tarnawski, M. et al. Biochemistry (2021) 60:2560-2575. DOI 10.1021/acs.biochem.1c00258 · PubMed

Other PDB entries of the same protein (UniProt E5BBQ0 (AlphaFold model), which also has an AlphaFold model), best resolution first:

Browse structure collections

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