Anons, Eyes on.

Is [C] before [D] = 3B44

a mutated E. Coli protein, better known as the Covid Spike Protein?

C=3

Before = B4

D=4

3B44

Crystal structure of GlpG W136A mutant

PDB DOI: https://doi.org/10.2210/pdb3B44/pdb

Classification: MEMBRANE PROTEIN

Organism(s): Escherichia coli

Expression System: Escherichia coli BL21(DE3)

Mutation(s): Yes

Membrane Protein: Yes

https://www.rcsb.org/structure/3b44