<｜begin▁of▁sentence｜>### Instruction:
As a medical researcher conducting scientific research to advance medical knowledge and develop treatments or cures, imagine you are studying a network of interactions between different proteins in a cell. Using the Python library networkx, how can you identify the proteins that directly follow a specific protein in the interaction network?
### Response:
from igraph import Graph

# Create the graph
edges = [(0, 1), (0, 2), (1, 3), (2, 3)]
g = Graph(edges)

# Get the successors of vertex 0
successors = g.successors(0)
print('Successors of vertex 0:', successors)
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