/usr/include/BALL/KERNEL/ is in libball1.4-dev 1.4.3~beta1-3.
This file is owned by root:root, with mode 0o755.
..
/usr/include/BALL/KERNEL/PDBAtom.h
/usr/include/BALL/KERNEL/PDBAtomIterator.h
/usr/include/BALL/KERNEL/PTE.h
/usr/include/BALL/KERNEL/PTE.iC
/usr/include/BALL/KERNEL/atom.h
/usr/include/BALL/KERNEL/atom.iC
/usr/include/BALL/KERNEL/atomContainer.h
/usr/include/BALL/KERNEL/atomContainerIterator.h
/usr/include/BALL/KERNEL/atomIterator.h
/usr/include/BALL/KERNEL/bond.h
/usr/include/BALL/KERNEL/bond.iC
/usr/include/BALL/KERNEL/bondIterator.h
/usr/include/BALL/KERNEL/chain.h
/usr/include/BALL/KERNEL/chainIterator.h
/usr/include/BALL/KERNEL/expression.h
/usr/include/BALL/KERNEL/expressionParser.h
/usr/include/BALL/KERNEL/expressionPredicate.h
/usr/include/BALL/KERNEL/expressionTree.h
/usr/include/BALL/KERNEL/extractors.h
/usr/include/BALL/KERNEL/forEach.h
/usr/include/BALL/KERNEL/fragment.h
/usr/include/BALL/KERNEL/fragmentIterator.h
/usr/include/BALL/KERNEL/global.h
/usr/include/BALL/KERNEL/iterator.h
/usr/include/BALL/KERNEL/kernel.doc
/usr/include/BALL/KERNEL/molecularInteractions.h
/usr/include/BALL/KERNEL/molecule.h
/usr/include/BALL/KERNEL/moleculeIterator.h
/usr/include/BALL/KERNEL/nucleicAcid.h
/usr/include/BALL/KERNEL/nucleicAcidIterator.h
/usr/include/BALL/KERNEL/nucleotide.h
/usr/include/BALL/KERNEL/nucleotideIterator.h
/usr/include/BALL/KERNEL/predicate.h
/usr/include/BALL/KERNEL/protein.h
/usr/include/BALL/KERNEL/proteinIterator.h
/usr/include/BALL/KERNEL/residue.h
/usr/include/BALL/KERNEL/residueIterator.h
/usr/include/BALL/KERNEL/secondaryStructure.h
/usr/include/BALL/KERNEL/secondaryStructureIterator.h
/usr/include/BALL/KERNEL/selector.h
/usr/include/BALL/KERNEL/sources.cmake
/usr/include/BALL/KERNEL/standardPredicates.h
/usr/include/BALL/KERNEL/system.h