Table 1

Summary of the reviewed predictors for m1A and m6A

ToolModificationAlgorithmFeature selectionEncoding scheme(s)Benchmark dataset size (modification sites)Dataset qualityEvaluation strategyURL/stand-alone packageOption of batch predictionAdjustment of predictor thresholdsWindow sizeSpeciesReference
RAMPredm1ASVMNoneNCP
ANF
6366 (H. sapiens)
1064 (M. musculus)
483 (S. cerevisiae)
Non-single-nucleotide resolutionJackknife testhttp://lin-group.cn/server/RAMPredYesNo41H. sapiens  
 M. musculus  
 S. cerevisiae
[40]
iRNA-3typeAm1A
m6A
SVMNoneNCP
ANF
6366 (H. sapiens; m1A) 1064 (M. musculus; m1A)
1130 (H. sapiens; m6A) 725 (M. musculus; m6A)
Non-single-nucleotide resolutionJackknife testhttp://lin-group.cn/server/iRNA-3typeA/YesNo41H. sapiens  
 M. musculus
[41]
iRNA-Methylm6ASVMNonePseDNC
RNA property parameters
1307Non-single-nucleotide resolution10-fold cross-validation Jackknife testhttp://lin-group.cn/server/iRNA-MethylYesNo51S. cerevisiae[42]
m6Apredm6ASVMNoneNCP
ANF
1307 (832/475)Non-single-nucleotide resolutionJackknife test
Independent test
http://lin-group.cn/server/m6Apred.phpYesAll
High
Medium
Low
21S. cerevisiae[43]
M6ATHm6ASVMNoneNCP
ANF
394Non-single-nucleotide resolutionJackknife testhttp://lin-group.cn/server/M6ATHYesNo25A. thaliana[29]
RNA-MethylPredm6ASVMNoneBPB
DNC
KNN score
1307Non-single-nucleotide resolutionJackknife testMATLAB packageNoNo51S. cerevisiae[33]
TargetM6Am6ASVMIFSPSNP
PSDP
k-mer
1307 (Met2614)
832 (Train1664)
Non-single-nucleotide resolutionJackknife testhttp://csbio.njust.edu.cn/bioinf/TargetM6A (Not available)NoNo51/21S. cerevisiae[32]
pRNAm-PCm6ASVMNonePCPM1307Non-single-nucleotide resolutionJackknife testhttp://www.jci-bioinfo.cn/pRNAm-PCYesNo51S. cerevisiae[44]
RNAMethPrem6ASVMNonebinary
k-mer
Relative position value
MFE
29,457 (H. sapiens)
31,728 (Mouse)
Single- nucleotide resolutionFivefold cross-validation
Independent test
http://bioinfo.tsinghua.edu.cn/RNAMethPre/index.html (Not available)NANA101H. sapiens  
 M. musculus
[31]
AthMethPrem6ASVMNonebinary
k-mer
6581Non-single-nucleotide resolutionFivefold cross-validation & Independent testhttp://bioinfo.tsinghua.edu.cn/AthMethPre/index.html (Not available)NANA101A. thaliana[30]
M6A-HPCSm6ASVMNonePCPM
PseDNC
AC
CC
1307Non-single-nucleotide resolutionJackknife test
10-fold cross-validation
http://csbio.njust.edu.cn/bioinf/M6A-HPCS (Not available)NANA51S. cerevisiae[45]
SRAMPm6ARFNonebinary
KNN score
spectrum
55,706 (Full transcript mode)
46,992 (Mature mRNA mode)
Single- nucleotide resolutionFivefold cross-validationhttp://www.cuilab.cn/sramp/NoNo251H. sapiens  
 M. musculus
[36]
MethyRNAm6ASVMNoneNCP
ANF
1130 (H. sapiens)
725 (M. musculus)
Non-single-nucleotide resolutionJackknife
test
http://lin-group.cn/server/methyrnaYesNo41H. sapiens  
 M. musculus
[35]
RAM-ESVMm6ASVMNonePseDNC
Motif features
1307Non-single-nucleotide resolutionJackknife
test
http://server.malab.cn/RAM-ESVM/YesNo51S. cerevisiae[46]
iRNA-PseCollm6ASVMNoneNCP
ANF
1130Non-single-nucleotide resolutionJackknife
test
http://lin-group.cn/server/iRNA-PseColl/YesNA41H. sapiens[47]
RAM-NPPSm6ASVMRFE
FSDI
MRMD
NPPS8366 (H. sapiens)
1307 (S. cerevisiae)
394 (A. thaliana)
MixedJackknife testhttp://server.malab.cn/RAM-NPPS/YesNo51H. sapiens  
 S. cerevisiae  
 A. thaliana
[26]
iMethyl-STTNCm6ASVMNoneSTTNC1307Non-single-nucleotide resolutionJackknife testNoNoNo51S. cerevisiae[48]
iRNA(m6A)-PseDNCm6ASVMNonePseDNC1307Non-single-nucleotide resolution10-fold cross-validationhttp://lin-group.cn/server/iRNA(m6A)-PseDNC.phpYesNo51S. cerevisiae[49]
BERMPm6ABGRUNoneENAC
RNA word embedding
53,000 (Mammalian full transcript mode)
44,853 (Mammalian Mature mRNA mode)
1100 (S. cerevisiae)
2100 (A. thaliana)
Mixed10-fold cross-validationhttp://www.bioinfogo.org/bermpYesLow
Moderate
High
Very high
251 (Mammalian) 51 (S. cerevisiae)
101 (Arabidopsis thaliana)
H. sapiens  
 M. musculus  
 S. cerevisiae  
 A. thaliana
[38]
M6AMRFSm6AXGBoostSFSDinucleotide binary Local position-specific dinucleotide frequency1307 (S. cerevisiae)
1130 (H. sapiens)
725 (M. musculus)
1000 (A. thaliana)
Non-single-nucleotide resolution10-fold cross-validation
jackknife test
http://server.malab.cn/M6AMRFS/YesNo51 (S. cerevisiae)
41 (H. sapiens)
41 (M. musculus)
25 (A. thaliana)
S. cerevisiae  
 H. sapiens  
 M. musculus  
 A. thaliana
[50]
RFAthM6Am6ARFNonePSNSP
PSDSP
KSNPF
k-mer
2518Non-single-nucleotide resolutionFivefold cross-validation
Independent test
RscriptYesNA101A. thaliana[27]
M6APred-ELm6AEnsemble of SVMNonePS(k-mer)NP
PCPs
RFHC-GACs
1307Non-single-nucleotide resolution10-fold cross-validationhttp://server.malab.cn/M6APred-EL/YesNo51S. cerevisiae[51]
m6ASVMNoneNCP
ANF
2055Non-single-nucleotide resolution10-fold cross-validation
Independent test
NoNoNo41E. coli[52]
HMprem6AXGBoostNoneSite Location
Entropy Information
SNP features
Binary
CPD
Kmers
26,512Single- nucleotide resolution10-fold cross-validation
Independent test
NoNoNo51H. sapiens[53]
WHISTLEm6ASVMPerturb methodNCP
CNF
Genome-derived features
20,516
17,383
Single- nucleotide resolutionFivefold cross-validation
Independent test
www.xjtlu.edu.cn/biologicalsciences/whistle  
 http://whistle-epitranscriptome.com
NoNoNAH. sapiens[39]
DeepM6APredm6ASVMNoneDeep features
NPPS
1307Non-single-nucleotide resolution10-fold cross-validationhttp://server.malab.cn/DeepM6APred/YesNo51S. cerevisiae[54]
Gene2Vecm6ACNNNoneOne-hot
Neighbouring methylation state
RNA word embedding
Gene2vec
56,557Single- nucleotide resolutionTraining and validationhttp://server.malab.cn/Gene2vec/YesNo1001H. sapiens  
 M. musculus
[37]
ToolModificationAlgorithmFeature selectionEncoding scheme(s)Benchmark dataset size (modification sites)Dataset qualityEvaluation strategyURL/stand-alone packageOption of batch predictionAdjustment of predictor thresholdsWindow sizeSpeciesReference
RAMPredm1ASVMNoneNCP
ANF
6366 (H. sapiens)
1064 (M. musculus)
483 (S. cerevisiae)
Non-single-nucleotide resolutionJackknife testhttp://lin-group.cn/server/RAMPredYesNo41H. sapiens  
 M. musculus  
 S. cerevisiae
[40]
iRNA-3typeAm1A
m6A
SVMNoneNCP
ANF
6366 (H. sapiens; m1A) 1064 (M. musculus; m1A)
1130 (H. sapiens; m6A) 725 (M. musculus; m6A)
Non-single-nucleotide resolutionJackknife testhttp://lin-group.cn/server/iRNA-3typeA/YesNo41H. sapiens  
 M. musculus
[41]
iRNA-Methylm6ASVMNonePseDNC
RNA property parameters
1307Non-single-nucleotide resolution10-fold cross-validation Jackknife testhttp://lin-group.cn/server/iRNA-MethylYesNo51S. cerevisiae[42]
m6Apredm6ASVMNoneNCP
ANF
1307 (832/475)Non-single-nucleotide resolutionJackknife test
Independent test
http://lin-group.cn/server/m6Apred.phpYesAll
High
Medium
Low
21S. cerevisiae[43]
M6ATHm6ASVMNoneNCP
ANF
394Non-single-nucleotide resolutionJackknife testhttp://lin-group.cn/server/M6ATHYesNo25A. thaliana[29]
RNA-MethylPredm6ASVMNoneBPB
DNC
KNN score
1307Non-single-nucleotide resolutionJackknife testMATLAB packageNoNo51S. cerevisiae[33]
TargetM6Am6ASVMIFSPSNP
PSDP
k-mer
1307 (Met2614)
832 (Train1664)
Non-single-nucleotide resolutionJackknife testhttp://csbio.njust.edu.cn/bioinf/TargetM6A (Not available)NoNo51/21S. cerevisiae[32]
pRNAm-PCm6ASVMNonePCPM1307Non-single-nucleotide resolutionJackknife testhttp://www.jci-bioinfo.cn/pRNAm-PCYesNo51S. cerevisiae[44]
RNAMethPrem6ASVMNonebinary
k-mer
Relative position value
MFE
29,457 (H. sapiens)
31,728 (Mouse)
Single- nucleotide resolutionFivefold cross-validation
Independent test
http://bioinfo.tsinghua.edu.cn/RNAMethPre/index.html (Not available)NANA101H. sapiens  
 M. musculus
[31]
AthMethPrem6ASVMNonebinary
k-mer
6581Non-single-nucleotide resolutionFivefold cross-validation & Independent testhttp://bioinfo.tsinghua.edu.cn/AthMethPre/index.html (Not available)NANA101A. thaliana[30]
M6A-HPCSm6ASVMNonePCPM
PseDNC
AC
CC
1307Non-single-nucleotide resolutionJackknife test
10-fold cross-validation
http://csbio.njust.edu.cn/bioinf/M6A-HPCS (Not available)NANA51S. cerevisiae[45]
SRAMPm6ARFNonebinary
KNN score
spectrum
55,706 (Full transcript mode)
46,992 (Mature mRNA mode)
Single- nucleotide resolutionFivefold cross-validationhttp://www.cuilab.cn/sramp/NoNo251H. sapiens  
 M. musculus
[36]
MethyRNAm6ASVMNoneNCP
ANF
1130 (H. sapiens)
725 (M. musculus)
Non-single-nucleotide resolutionJackknife
test
http://lin-group.cn/server/methyrnaYesNo41H. sapiens  
 M. musculus
[35]
RAM-ESVMm6ASVMNonePseDNC
Motif features
1307Non-single-nucleotide resolutionJackknife
test
http://server.malab.cn/RAM-ESVM/YesNo51S. cerevisiae[46]
iRNA-PseCollm6ASVMNoneNCP
ANF
1130Non-single-nucleotide resolutionJackknife
test
http://lin-group.cn/server/iRNA-PseColl/YesNA41H. sapiens[47]
RAM-NPPSm6ASVMRFE
FSDI
MRMD
NPPS8366 (H. sapiens)
1307 (S. cerevisiae)
394 (A. thaliana)
MixedJackknife testhttp://server.malab.cn/RAM-NPPS/YesNo51H. sapiens  
 S. cerevisiae  
 A. thaliana
[26]
iMethyl-STTNCm6ASVMNoneSTTNC1307Non-single-nucleotide resolutionJackknife testNoNoNo51S. cerevisiae[48]
iRNA(m6A)-PseDNCm6ASVMNonePseDNC1307Non-single-nucleotide resolution10-fold cross-validationhttp://lin-group.cn/server/iRNA(m6A)-PseDNC.phpYesNo51S. cerevisiae[49]
BERMPm6ABGRUNoneENAC
RNA word embedding
53,000 (Mammalian full transcript mode)
44,853 (Mammalian Mature mRNA mode)
1100 (S. cerevisiae)
2100 (A. thaliana)
Mixed10-fold cross-validationhttp://www.bioinfogo.org/bermpYesLow
Moderate
High
Very high
251 (Mammalian) 51 (S. cerevisiae)
101 (Arabidopsis thaliana)
H. sapiens  
 M. musculus  
 S. cerevisiae  
 A. thaliana
[38]
M6AMRFSm6AXGBoostSFSDinucleotide binary Local position-specific dinucleotide frequency1307 (S. cerevisiae)
1130 (H. sapiens)
725 (M. musculus)
1000 (A. thaliana)
Non-single-nucleotide resolution10-fold cross-validation
jackknife test
http://server.malab.cn/M6AMRFS/YesNo51 (S. cerevisiae)
41 (H. sapiens)
41 (M. musculus)
25 (A. thaliana)
S. cerevisiae  
 H. sapiens  
 M. musculus  
 A. thaliana
[50]
RFAthM6Am6ARFNonePSNSP
PSDSP
KSNPF
k-mer
2518Non-single-nucleotide resolutionFivefold cross-validation
Independent test
RscriptYesNA101A. thaliana[27]
M6APred-ELm6AEnsemble of SVMNonePS(k-mer)NP
PCPs
RFHC-GACs
1307Non-single-nucleotide resolution10-fold cross-validationhttp://server.malab.cn/M6APred-EL/YesNo51S. cerevisiae[51]
m6ASVMNoneNCP
ANF
2055Non-single-nucleotide resolution10-fold cross-validation
Independent test
NoNoNo41E. coli[52]
HMprem6AXGBoostNoneSite Location
Entropy Information
SNP features
Binary
CPD
Kmers
26,512Single- nucleotide resolution10-fold cross-validation
Independent test
NoNoNo51H. sapiens[53]
WHISTLEm6ASVMPerturb methodNCP
CNF
Genome-derived features
20,516
17,383
Single- nucleotide resolutionFivefold cross-validation
Independent test
www.xjtlu.edu.cn/biologicalsciences/whistle  
 http://whistle-epitranscriptome.com
NoNoNAH. sapiens[39]
DeepM6APredm6ASVMNoneDeep features
NPPS
1307Non-single-nucleotide resolution10-fold cross-validationhttp://server.malab.cn/DeepM6APred/YesNo51S. cerevisiae[54]
Gene2Vecm6ACNNNoneOne-hot
Neighbouring methylation state
RNA word embedding
Gene2vec
56,557Single- nucleotide resolutionTraining and validationhttp://server.malab.cn/Gene2vec/YesNo1001H. sapiens  
 M. musculus
[37]

Abbreviations: PseDNC, pseudo dinucleotide composition; NCP, nucleotide chemical property; ANF, accumulated nucleotide frequency; BPB, bi-profile bayes; DNC, dinucleotide composition; KNN, k nearest neighbour; PSNP, position-specific nucleotide propensity; PSDP, position-specific dinucleotide propensity; NC, nucleotide composition; MFE, minimum free energy; PCPM, physical-chemical property matrix; AC, auto-covariance; CC, cross-covariance; NPPS, nucleotide pair position specificity; STTNC, split-tetra-nucleotide composition; ENAC, Enhanced nucleic acid composition; PSNSP, position-specific nucleotide sequence profile; PSDSP, position-specific dinucleotide sequence profile; KSNPF, K-spaced nucleotide pair frequencies; PS(k-mer) NP, position-specific k-mer nucleotide propensity; PCPs, physical-chemical properties; RFHC-GACs, ring-function-hydrogen-chemical properties without GAC; CPD, chemical property with density; IFS, incremental feature selection; RFE, recursive feature elimination; FSDI, feature selection based on discernibility and independence of a feature; MRMD, maximal relevance and maximal distance; SFS, sequence forward search.

Table 1

Summary of the reviewed predictors for m1A and m6A

ToolModificationAlgorithmFeature selectionEncoding scheme(s)Benchmark dataset size (modification sites)Dataset qualityEvaluation strategyURL/stand-alone packageOption of batch predictionAdjustment of predictor thresholdsWindow sizeSpeciesReference
RAMPredm1ASVMNoneNCP
ANF
6366 (H. sapiens)
1064 (M. musculus)
483 (S. cerevisiae)
Non-single-nucleotide resolutionJackknife testhttp://lin-group.cn/server/RAMPredYesNo41H. sapiens  
 M. musculus  
 S. cerevisiae
[40]
iRNA-3typeAm1A
m6A
SVMNoneNCP
ANF
6366 (H. sapiens; m1A) 1064 (M. musculus; m1A)
1130 (H. sapiens; m6A) 725 (M. musculus; m6A)
Non-single-nucleotide resolutionJackknife testhttp://lin-group.cn/server/iRNA-3typeA/YesNo41H. sapiens  
 M. musculus
[41]
iRNA-Methylm6ASVMNonePseDNC
RNA property parameters
1307Non-single-nucleotide resolution10-fold cross-validation Jackknife testhttp://lin-group.cn/server/iRNA-MethylYesNo51S. cerevisiae[42]
m6Apredm6ASVMNoneNCP
ANF
1307 (832/475)Non-single-nucleotide resolutionJackknife test
Independent test
http://lin-group.cn/server/m6Apred.phpYesAll
High
Medium
Low
21S. cerevisiae[43]
M6ATHm6ASVMNoneNCP
ANF
394Non-single-nucleotide resolutionJackknife testhttp://lin-group.cn/server/M6ATHYesNo25A. thaliana[29]
RNA-MethylPredm6ASVMNoneBPB
DNC
KNN score
1307Non-single-nucleotide resolutionJackknife testMATLAB packageNoNo51S. cerevisiae[33]
TargetM6Am6ASVMIFSPSNP
PSDP
k-mer
1307 (Met2614)
832 (Train1664)
Non-single-nucleotide resolutionJackknife testhttp://csbio.njust.edu.cn/bioinf/TargetM6A (Not available)NoNo51/21S. cerevisiae[32]
pRNAm-PCm6ASVMNonePCPM1307Non-single-nucleotide resolutionJackknife testhttp://www.jci-bioinfo.cn/pRNAm-PCYesNo51S. cerevisiae[44]
RNAMethPrem6ASVMNonebinary
k-mer
Relative position value
MFE
29,457 (H. sapiens)
31,728 (Mouse)
Single- nucleotide resolutionFivefold cross-validation
Independent test
http://bioinfo.tsinghua.edu.cn/RNAMethPre/index.html (Not available)NANA101H. sapiens  
 M. musculus
[31]
AthMethPrem6ASVMNonebinary
k-mer
6581Non-single-nucleotide resolutionFivefold cross-validation & Independent testhttp://bioinfo.tsinghua.edu.cn/AthMethPre/index.html (Not available)NANA101A. thaliana[30]
M6A-HPCSm6ASVMNonePCPM
PseDNC
AC
CC
1307Non-single-nucleotide resolutionJackknife test
10-fold cross-validation
http://csbio.njust.edu.cn/bioinf/M6A-HPCS (Not available)NANA51S. cerevisiae[45]
SRAMPm6ARFNonebinary
KNN score
spectrum
55,706 (Full transcript mode)
46,992 (Mature mRNA mode)
Single- nucleotide resolutionFivefold cross-validationhttp://www.cuilab.cn/sramp/NoNo251H. sapiens  
 M. musculus
[36]
MethyRNAm6ASVMNoneNCP
ANF
1130 (H. sapiens)
725 (M. musculus)
Non-single-nucleotide resolutionJackknife
test
http://lin-group.cn/server/methyrnaYesNo41H. sapiens  
 M. musculus
[35]
RAM-ESVMm6ASVMNonePseDNC
Motif features
1307Non-single-nucleotide resolutionJackknife
test
http://server.malab.cn/RAM-ESVM/YesNo51S. cerevisiae[46]
iRNA-PseCollm6ASVMNoneNCP
ANF
1130Non-single-nucleotide resolutionJackknife
test
http://lin-group.cn/server/iRNA-PseColl/YesNA41H. sapiens[47]
RAM-NPPSm6ASVMRFE
FSDI
MRMD
NPPS8366 (H. sapiens)
1307 (S. cerevisiae)
394 (A. thaliana)
MixedJackknife testhttp://server.malab.cn/RAM-NPPS/YesNo51H. sapiens  
 S. cerevisiae  
 A. thaliana
[26]
iMethyl-STTNCm6ASVMNoneSTTNC1307Non-single-nucleotide resolutionJackknife testNoNoNo51S. cerevisiae[48]
iRNA(m6A)-PseDNCm6ASVMNonePseDNC1307Non-single-nucleotide resolution10-fold cross-validationhttp://lin-group.cn/server/iRNA(m6A)-PseDNC.phpYesNo51S. cerevisiae[49]
BERMPm6ABGRUNoneENAC
RNA word embedding
53,000 (Mammalian full transcript mode)
44,853 (Mammalian Mature mRNA mode)
1100 (S. cerevisiae)
2100 (A. thaliana)
Mixed10-fold cross-validationhttp://www.bioinfogo.org/bermpYesLow
Moderate
High
Very high
251 (Mammalian) 51 (S. cerevisiae)
101 (Arabidopsis thaliana)
H. sapiens  
 M. musculus  
 S. cerevisiae  
 A. thaliana
[38]
M6AMRFSm6AXGBoostSFSDinucleotide binary Local position-specific dinucleotide frequency1307 (S. cerevisiae)
1130 (H. sapiens)
725 (M. musculus)
1000 (A. thaliana)
Non-single-nucleotide resolution10-fold cross-validation
jackknife test
http://server.malab.cn/M6AMRFS/YesNo51 (S. cerevisiae)
41 (H. sapiens)
41 (M. musculus)
25 (A. thaliana)
S. cerevisiae  
 H. sapiens  
 M. musculus  
 A. thaliana
[50]
RFAthM6Am6ARFNonePSNSP
PSDSP
KSNPF
k-mer
2518Non-single-nucleotide resolutionFivefold cross-validation
Independent test
RscriptYesNA101A. thaliana[27]
M6APred-ELm6AEnsemble of SVMNonePS(k-mer)NP
PCPs
RFHC-GACs
1307Non-single-nucleotide resolution10-fold cross-validationhttp://server.malab.cn/M6APred-EL/YesNo51S. cerevisiae[51]
m6ASVMNoneNCP
ANF
2055Non-single-nucleotide resolution10-fold cross-validation
Independent test
NoNoNo41E. coli[52]
HMprem6AXGBoostNoneSite Location
Entropy Information
SNP features
Binary
CPD
Kmers
26,512Single- nucleotide resolution10-fold cross-validation
Independent test
NoNoNo51H. sapiens[53]
WHISTLEm6ASVMPerturb methodNCP
CNF
Genome-derived features
20,516
17,383
Single- nucleotide resolutionFivefold cross-validation
Independent test
www.xjtlu.edu.cn/biologicalsciences/whistle  
 http://whistle-epitranscriptome.com
NoNoNAH. sapiens[39]
DeepM6APredm6ASVMNoneDeep features
NPPS
1307Non-single-nucleotide resolution10-fold cross-validationhttp://server.malab.cn/DeepM6APred/YesNo51S. cerevisiae[54]
Gene2Vecm6ACNNNoneOne-hot
Neighbouring methylation state
RNA word embedding
Gene2vec
56,557Single- nucleotide resolutionTraining and validationhttp://server.malab.cn/Gene2vec/YesNo1001H. sapiens  
 M. musculus
[37]
ToolModificationAlgorithmFeature selectionEncoding scheme(s)Benchmark dataset size (modification sites)Dataset qualityEvaluation strategyURL/stand-alone packageOption of batch predictionAdjustment of predictor thresholdsWindow sizeSpeciesReference
RAMPredm1ASVMNoneNCP
ANF
6366 (H. sapiens)
1064 (M. musculus)
483 (S. cerevisiae)
Non-single-nucleotide resolutionJackknife testhttp://lin-group.cn/server/RAMPredYesNo41H. sapiens  
 M. musculus  
 S. cerevisiae
[40]
iRNA-3typeAm1A
m6A
SVMNoneNCP
ANF
6366 (H. sapiens; m1A) 1064 (M. musculus; m1A)
1130 (H. sapiens; m6A) 725 (M. musculus; m6A)
Non-single-nucleotide resolutionJackknife testhttp://lin-group.cn/server/iRNA-3typeA/YesNo41H. sapiens  
 M. musculus
[41]
iRNA-Methylm6ASVMNonePseDNC
RNA property parameters
1307Non-single-nucleotide resolution10-fold cross-validation Jackknife testhttp://lin-group.cn/server/iRNA-MethylYesNo51S. cerevisiae[42]
m6Apredm6ASVMNoneNCP
ANF
1307 (832/475)Non-single-nucleotide resolutionJackknife test
Independent test
http://lin-group.cn/server/m6Apred.phpYesAll
High
Medium
Low
21S. cerevisiae[43]
M6ATHm6ASVMNoneNCP
ANF
394Non-single-nucleotide resolutionJackknife testhttp://lin-group.cn/server/M6ATHYesNo25A. thaliana[29]
RNA-MethylPredm6ASVMNoneBPB
DNC
KNN score
1307Non-single-nucleotide resolutionJackknife testMATLAB packageNoNo51S. cerevisiae[33]
TargetM6Am6ASVMIFSPSNP
PSDP
k-mer
1307 (Met2614)
832 (Train1664)
Non-single-nucleotide resolutionJackknife testhttp://csbio.njust.edu.cn/bioinf/TargetM6A (Not available)NoNo51/21S. cerevisiae[32]
pRNAm-PCm6ASVMNonePCPM1307Non-single-nucleotide resolutionJackknife testhttp://www.jci-bioinfo.cn/pRNAm-PCYesNo51S. cerevisiae[44]
RNAMethPrem6ASVMNonebinary
k-mer
Relative position value
MFE
29,457 (H. sapiens)
31,728 (Mouse)
Single- nucleotide resolutionFivefold cross-validation
Independent test
http://bioinfo.tsinghua.edu.cn/RNAMethPre/index.html (Not available)NANA101H. sapiens  
 M. musculus
[31]
AthMethPrem6ASVMNonebinary
k-mer
6581Non-single-nucleotide resolutionFivefold cross-validation & Independent testhttp://bioinfo.tsinghua.edu.cn/AthMethPre/index.html (Not available)NANA101A. thaliana[30]
M6A-HPCSm6ASVMNonePCPM
PseDNC
AC
CC
1307Non-single-nucleotide resolutionJackknife test
10-fold cross-validation
http://csbio.njust.edu.cn/bioinf/M6A-HPCS (Not available)NANA51S. cerevisiae[45]
SRAMPm6ARFNonebinary
KNN score
spectrum
55,706 (Full transcript mode)
46,992 (Mature mRNA mode)
Single- nucleotide resolutionFivefold cross-validationhttp://www.cuilab.cn/sramp/NoNo251H. sapiens  
 M. musculus
[36]
MethyRNAm6ASVMNoneNCP
ANF
1130 (H. sapiens)
725 (M. musculus)
Non-single-nucleotide resolutionJackknife
test
http://lin-group.cn/server/methyrnaYesNo41H. sapiens  
 M. musculus
[35]
RAM-ESVMm6ASVMNonePseDNC
Motif features
1307Non-single-nucleotide resolutionJackknife
test
http://server.malab.cn/RAM-ESVM/YesNo51S. cerevisiae[46]
iRNA-PseCollm6ASVMNoneNCP
ANF
1130Non-single-nucleotide resolutionJackknife
test
http://lin-group.cn/server/iRNA-PseColl/YesNA41H. sapiens[47]
RAM-NPPSm6ASVMRFE
FSDI
MRMD
NPPS8366 (H. sapiens)
1307 (S. cerevisiae)
394 (A. thaliana)
MixedJackknife testhttp://server.malab.cn/RAM-NPPS/YesNo51H. sapiens  
 S. cerevisiae  
 A. thaliana
[26]
iMethyl-STTNCm6ASVMNoneSTTNC1307Non-single-nucleotide resolutionJackknife testNoNoNo51S. cerevisiae[48]
iRNA(m6A)-PseDNCm6ASVMNonePseDNC1307Non-single-nucleotide resolution10-fold cross-validationhttp://lin-group.cn/server/iRNA(m6A)-PseDNC.phpYesNo51S. cerevisiae[49]
BERMPm6ABGRUNoneENAC
RNA word embedding
53,000 (Mammalian full transcript mode)
44,853 (Mammalian Mature mRNA mode)
1100 (S. cerevisiae)
2100 (A. thaliana)
Mixed10-fold cross-validationhttp://www.bioinfogo.org/bermpYesLow
Moderate
High
Very high
251 (Mammalian) 51 (S. cerevisiae)
101 (Arabidopsis thaliana)
H. sapiens  
 M. musculus  
 S. cerevisiae  
 A. thaliana
[38]
M6AMRFSm6AXGBoostSFSDinucleotide binary Local position-specific dinucleotide frequency1307 (S. cerevisiae)
1130 (H. sapiens)
725 (M. musculus)
1000 (A. thaliana)
Non-single-nucleotide resolution10-fold cross-validation
jackknife test
http://server.malab.cn/M6AMRFS/YesNo51 (S. cerevisiae)
41 (H. sapiens)
41 (M. musculus)
25 (A. thaliana)
S. cerevisiae  
 H. sapiens  
 M. musculus  
 A. thaliana
[50]
RFAthM6Am6ARFNonePSNSP
PSDSP
KSNPF
k-mer
2518Non-single-nucleotide resolutionFivefold cross-validation
Independent test
RscriptYesNA101A. thaliana[27]
M6APred-ELm6AEnsemble of SVMNonePS(k-mer)NP
PCPs
RFHC-GACs
1307Non-single-nucleotide resolution10-fold cross-validationhttp://server.malab.cn/M6APred-EL/YesNo51S. cerevisiae[51]
m6ASVMNoneNCP
ANF
2055Non-single-nucleotide resolution10-fold cross-validation
Independent test
NoNoNo41E. coli[52]
HMprem6AXGBoostNoneSite Location
Entropy Information
SNP features
Binary
CPD
Kmers
26,512Single- nucleotide resolution10-fold cross-validation
Independent test
NoNoNo51H. sapiens[53]
WHISTLEm6ASVMPerturb methodNCP
CNF
Genome-derived features
20,516
17,383
Single- nucleotide resolutionFivefold cross-validation
Independent test
www.xjtlu.edu.cn/biologicalsciences/whistle  
 http://whistle-epitranscriptome.com
NoNoNAH. sapiens[39]
DeepM6APredm6ASVMNoneDeep features
NPPS
1307Non-single-nucleotide resolution10-fold cross-validationhttp://server.malab.cn/DeepM6APred/YesNo51S. cerevisiae[54]
Gene2Vecm6ACNNNoneOne-hot
Neighbouring methylation state
RNA word embedding
Gene2vec
56,557Single- nucleotide resolutionTraining and validationhttp://server.malab.cn/Gene2vec/YesNo1001H. sapiens  
 M. musculus
[37]

Abbreviations: PseDNC, pseudo dinucleotide composition; NCP, nucleotide chemical property; ANF, accumulated nucleotide frequency; BPB, bi-profile bayes; DNC, dinucleotide composition; KNN, k nearest neighbour; PSNP, position-specific nucleotide propensity; PSDP, position-specific dinucleotide propensity; NC, nucleotide composition; MFE, minimum free energy; PCPM, physical-chemical property matrix; AC, auto-covariance; CC, cross-covariance; NPPS, nucleotide pair position specificity; STTNC, split-tetra-nucleotide composition; ENAC, Enhanced nucleic acid composition; PSNSP, position-specific nucleotide sequence profile; PSDSP, position-specific dinucleotide sequence profile; KSNPF, K-spaced nucleotide pair frequencies; PS(k-mer) NP, position-specific k-mer nucleotide propensity; PCPs, physical-chemical properties; RFHC-GACs, ring-function-hydrogen-chemical properties without GAC; CPD, chemical property with density; IFS, incremental feature selection; RFE, recursive feature elimination; FSDI, feature selection based on discernibility and independence of a feature; MRMD, maximal relevance and maximal distance; SFS, sequence forward search.

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