# How to use base_pair_constraint for RNA as a constraint term？

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How to use base_pair_constraint for RNA as a constraint term？
#1

The above tells me that an RNA low-resolution potential

(rna_lowres_sf = core.scoring.ScoreFunctionFactory.create_score_function("rna/denovo/rna_lores_with_rnp_aug.wts"))

has been developed to more quickly score RNA structures represented in centroid mode, which including a score  base_pair_constraint.

I know that atom_pair_constraint can be restricted from the distance based on different Functions(https://new.rosettacommons.org/docs/latest/rosetta_basics/file_types/constraint-file).

So for base_pair_constraint, how can I use the energy term as a constraint?

That energy term works in the context of protocols that read in an RNA secondary structure in dot-bracket notation from the command line (such as rna_denovo).