6C9O: Immunoglobulin G-binding protein G

Selenomethionine mutant (V29Sem) of protein GB1 examined by X-ray diffraction. Determined by X-ray diffraction at 1.2 Å resolution. Released 10 Jul 2019.

Method
X-ray diffraction
Resolution
1.2 Å
Organism
Streptococcus sp. group G
Chains
2
Atoms
1,078
Mol. weight
12.94 kDa
Released
10 Jul 2019

Explore 6C9O in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

6C9O contains 2 α-helices and 8 β-strands across 2 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.

Chains A and B: 1 helix, 4 β-strands

ElementResiduesLengthSheet
β-strand2-871
β-strand13-1971
α-helix23-3614
β-strand42-4651
β-strand51-5551

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Immunoglobulin G-binding protein GA, Bprotein56Streptococcus sp. group GP19909 (AlphaFold model)
Sequence of entity 1 (A, B), FASTA
>6C9O_1 Immunoglobulin G-binding protein G (chains A, B)
GQYKLILNGKTLKGETTTEAVDAATAEKMFKQYANDNGVDGEWTYDDATKTFTVTE

Primary citation

77Se NMR Probes the Protein Environment of Selenomethionine. Chen, Q., Xu, S., Lu, X. et al. J Phys Chem B (2020). DOI 10.1021/acs.jpcb.9b07466 · PubMed

Other PDB entries of the same protein (UniProt P19909 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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