Pup	prokaryotic ubiquitin-like protein
KPCA	k-means principal component analysis oversampling technique
FUS	fuzzy undersampling method
Sn	sensitivity
Sp	specificity
Acc	accuracy
MCC	Matthews correlation coefficient
CKSAAP	composition of k-spaced amino acid pairs feature
pbCKSAAP	profile-based composition of k-spaced amino acid pairs
AAC	extracting amino acid composition
M. smegmatis	Mycobacterium smegmatis
M. tuberculosis	Mycobacterium tuberculosis
E. coli	Escherichia coli
AAPC	amino acid pair composition
ANBPB	adapted normal distribution bi-profile Bayes
BPB	bi-profile Bayes
PC-PseAAC	parallel correlation pseudo amino acid composition
PCA	principal component analysis
SVM	support vector machine
RBF	radial basis kernel function