MFF — 203 ClinVar variants
All ClinVar germline MFF variants across every classification, each assembled from ClinVar, gnomAD, AlphaMissense, conservation and more. 81 flagged for review →
6 Pathogenic · 1 Pathogenic/Likely pathogenic · 7 Likely pathogenic · 3 Conflicting · 36 Benign · 5 Benign/Likely benign · 56 Likely benign · 89 Uncertain significance
Full MFF gene report on Sugi Atlas → Gene function, pathways, protein structure, constraint & interactions⚑ Evidence disagreements 81
Variants where the independent computational evidence doesn't line up with the clinical picture — a QC signal for a second look, not a reclassification.
Predictors agree, ClinVar conflicts 3
ClinVar submitters conflict, but the independent predictors unanimously agree — a QC review flag, not a reclassification.
-
MFF c.440+2430C>T
Conflicting
Single submitter
Inborn genetic diseases
-
MFF p.Thr228Ala
Conflicting
Single submitter
Inborn genetic diseases
-
MFF p.Val135Ile
Conflicting
Single submitter
encephalopathy due to defective mitochondrial and peroxisomal fission 2
Predictors lean, ClinVar uncertain 65
ClinVar classifies these uncertain (VUS), but the independent predictors unanimously lean one way — a triage signal for review, not a reclassification.
-
MFF p.Arg128Trp
Uncertain significance
Multiple submitters
Inborn genetic diseases
- MFF p.Arg136Cys Uncertain significance Multiple submitters
-
MFF p.Arg136His
Uncertain significance
Multiple submitters
Inborn genetic diseases
- MFF p.Arg199His Uncertain significance Multiple submitters
-
MFF p.Arg6Gln
Uncertain significance
Multiple submitters
Inborn genetic diseases
-
MFF p.Arg92His
Uncertain significance
Multiple submitters
Inborn genetic diseases
-
MFF p.Asp75Asn
Uncertain significance
Multiple submitters
encephalopathy due to defective mitochondrial and peroxisomal fission 2
-
MFF p.Gln52His
Uncertain significance
Multiple submitters
Inborn genetic diseases
-
MFF p.His215Pro
Uncertain significance
Multiple submitters
Inborn genetic diseases
-
MFF p.Ile230Thr
Uncertain significance
Multiple submitters
Inborn genetic diseases
-
MFF p.Ile50Leu
Uncertain significance
Multiple submitters
Inborn genetic diseases
-
MFF p.Pro214Arg
Uncertain significance
Multiple submitters
Inborn genetic diseases
-
MFF p.Ser69Ala
Uncertain significance
Multiple submitters
Inborn genetic diseases
-
MFF p.Thr149Ile
Uncertain significance
Multiple submitters
Inborn genetic diseases
-
MFF p.Thr211Asn
Uncertain significance
Multiple submitters
Inborn genetic diseases
- MFF c.440+2379A>T Uncertain significance Single submitter
-
MFF c.440+2418C>T
Uncertain significance
Single submitter
Inborn genetic diseases
- MFF c.440+2436A>G Uncertain significance Single submitter
-
MFF c.-40-843G>A
Uncertain significance
Single submitter
Inborn genetic diseases
-
MFF c.-9G>C
Uncertain significance
Single submitter
Inborn genetic diseases
-
MFF p.Ala208Thr
Uncertain significance
Single submitter
Inborn genetic diseases
-
MFF p.Ala267Ser
Uncertain significance
Single submitter
Inborn genetic diseases
- MFF p.Ala34Val Uncertain significance Single submitter
-
MFF p.Ala72Thr
Uncertain significance
Single submitter
Inborn genetic diseases
- MFF p.Arg119Gln Uncertain significance Single submitter
-
MFF p.Arg143Gly
Uncertain significance
Single submitter
Inborn genetic diseases
-
MFF p.Arg156Trp
Uncertain significance
Single submitter
Inborn genetic diseases
-
MFF p.Arg174His
Uncertain significance
Single submitter
Inborn genetic diseases
- MFF p.Arg199Cys Uncertain significance Single submitter
- MFF p.Arg200Gly Uncertain significance Single submitter
-
MFF p.Arg204Cys
Uncertain significance
Single submitter
Inborn genetic diseases
- MFF p.Arg204His Uncertain significance Single submitter
-
MFF p.Arg255His
Uncertain significance
Single submitter
Inborn genetic diseases
- MFF p.Arg266Cys Uncertain significance Single submitter
-
MFF p.Arg290Gly
Uncertain significance
Single submitter
Inborn genetic diseases
- MFF p.Asn263Asp Uncertain significance Single submitter
-
MFF p.Asn63Lys
Uncertain significance
Single submitter
Inborn genetic diseases
-
MFF p.Asp217Ala
Uncertain significance
Single submitter
Inborn genetic diseases
- MFF p.Gln189Arg Uncertain significance Single submitter
-
MFF p.Gln257Leu
Uncertain significance
Single submitter
Inborn genetic diseases
-
MFF p.Gln8His
Uncertain significance
Single submitter
Inborn genetic diseases
-
MFF p.Glu10Lys
Uncertain significance
Single submitter
Inborn genetic diseases
-
MFF p.Glu37Gln
Uncertain significance
Single submitter
Inborn genetic diseases
-
MFF p.Gly167Arg
Uncertain significance
Single submitter
Inborn genetic diseases
-
MFF p.His216Asp
Uncertain significance
Single submitter
Inborn genetic diseases
-
MFF p.Ile226Met
Uncertain significance
Single submitter
encephalopathy due to defective mitochondrial and peroxisomal fission 2
- MFF p.Ile250Val Uncertain significance Single submitter
-
MFF p.Ile57Thr
Uncertain significance
Single submitter
Inborn genetic diseases
-
MFF p.Leu74Val
Uncertain significance
Single submitter
Inborn genetic diseases
-
MFF p.Leu76Ile
Uncertain significance
Single submitter
Inborn genetic diseases
-
MFF p.Leu76Phe
Uncertain significance
Single submitter
Inborn genetic diseases
- MFF p.Leu76Val Uncertain significance Single submitter
-
MFF p.Met162Leu
Uncertain significance
Single submitter
Inborn genetic diseases
-
MFF p.Met162Val
Uncertain significance
Single submitter
Inborn genetic diseases
-
MFF p.Pro113Thr
Uncertain significance
Single submitter
encephalopathy due to defective mitochondrial and peroxisomal fission 2
- MFF p.Pro150Ser Uncertain significance Single submitter
- MFF p.Pro214Leu Uncertain significance Single submitter
-
MFF p.Pro71Leu
Uncertain significance
Single submitter
Inborn genetic diseases
- MFF p.Pro81Leu Uncertain significance Single submitter
- MFF p.Ser212Pro Uncertain significance Single submitter
-
MFF p.Thr228Ile
Uncertain significance
Single submitter
Inborn genetic diseases
-
MFF p.Thr228Lys
Uncertain significance
Single submitter
Inborn genetic diseases
-
MFF p.Thr233Ala
Uncertain significance
Single submitter
Inborn genetic diseases
-
MFF p.Trp286Arg
Uncertain significance
Single submitter
encephalopathy due to defective mitochondrial and peroxisomal fission 2
-
MFF p.Val239Ile
Uncertain significance
Single submitter
Inborn genetic diseases
Predictors split 13
The independent predictors disagree with each other — read with care.
- MFF c.-40-862A>T Benign/Likely benign Multiple submitters
-
MFF p.Ile250Ser
Uncertain significance
Multiple submitters
Inborn genetic diseases
-
MFF p.Met273Ile
Uncertain significance
Multiple submitters
Inborn genetic diseases
-
MFF p.Arg136Ser
Uncertain significance
Single submitter
Inborn genetic diseases
-
MFF p.Arg174Cys
Uncertain significance
Single submitter
Inborn genetic diseases
-
MFF p.Arg20Gln
Uncertain significance
Single submitter
Inborn genetic diseases
-
MFF p.Arg20Leu
Uncertain significance
Single submitter
Inborn genetic diseases
-
MFF p.Gly205Arg
Uncertain significance
Single submitter
Inborn genetic diseases
- MFF p.Phe280Cys Uncertain significance Single submitter
-
MFF p.Phe68Leu
Uncertain significance
Single submitter
Inborn genetic diseases
-
MFF p.Thr277Ile
Uncertain significance
Single submitter
Inborn genetic diseases
- MFF p.Tyr9Cys Uncertain significance Single submitter
- MFF p.Val29Ala Uncertain significance Single submitter
All MFF variants
Pathogenic 6
- c.440+2432G>T Single submitter
- p.Glu127fs Single submitter encephalopathy due to defective mitochondrial and peroxisomal fission 2
- p.Thr95fs Single submitter encephalopathy due to defective mitochondrial and peroxisomal fission 2
- p.Arg119Ter No assertion criteria encephalopathy due to defective mitochondrial and peroxisomal fission 2
- p.Arg247Ter No assertion criteria encephalopathy due to defective mitochondrial and peroxisomal fission 2
- p.Leu36fs No assertion criteria encephalopathy due to defective mitochondrial and peroxisomal fission 2
Pathogenic/Likely pathogenic 1
- p.Gln38Ter No assertion criteria Global developmental delay
Likely pathogenic 7
- c.181+1_181+2insAAATAATGAAGATGTTTCATTTTCAAGACCAGCAGATCTTGACCT Single submitter
- c.-40-841T>G Single submitter encephalopathy due to defective mitochondrial and peroxisomal fission 2
- c.-40-842dup Single submitter encephalopathy due to defective mitochondrial and peroxisomal fission 2
- c.-40-842G>A Single submitter
- c.-40-842G>T Single submitter encephalopathy due to defective mitochondrial and peroxisomal fission 2
- c.352-2A>C No assertion criteria encephalopathy due to defective mitochondrial and peroxisomal fission 2
- p.Pro54fs No assertion criteria encephalopathy due to defective mitochondrial and peroxisomal fission 2
Conflicting classifications of pathogenicity 3
- c.440+2430C>T Single submitter Inborn genetic diseases ⚠
- p.Thr228Ala Single submitter Inborn genetic diseases ⚠
- p.Val135Ile Single submitter encephalopathy due to defective mitochondrial and peroxisomal fission 2 ⚠
Benign 36
- c.351+64A>G Multiple submitters
- c.352-26C>T Multiple submitters
- c.352-79C>T Multiple submitters
- c.440+2529G>A Multiple submitters
- c.600-238G>A Multiple submitters
- c.660-105A>G Multiple submitters
- c.660-166T>C Multiple submitters
- c.660-232C>T Multiple submitters
- c.660-60G>A Multiple submitters
- c.744+51T>C Multiple submitters
- c.-152-1106C>G Multiple submitters
- c.-152-30T>G Multiple submitters
- c.-294C>G Multiple submitters
- c.-311C>A Multiple submitters
- c.-40-689C>T Multiple submitters
- c.-40-772G>A Multiple submitters
- c.-40-862_-40-861delinsTT Multiple submitters
- c.*129G>C Multiple submitters
- p.Thr95= Multiple submitters
- c.181+201C>T Single submitter
- c.182-167G>A Single submitter
- c.182-266dup Single submitter
- c.351+184A>G Single submitter
- c.351+286G>T Single submitter
- c.352-200GT[10] Single submitter
- c.440+2680C>A Single submitter
- c.600-12A>C Single submitter
- c.660-249T>C Single submitter
- c.744+227_744+229del Single submitter
- c.744+292T>C Single submitter
- c.-152-1171_-152-1170insAGT Single submitter
- c.-40-277_-40-270del Single submitter
- c.-40-291G>A Single submitter
- c.-40-294G>A Single submitter
- c.-40-692dup Single submitter
- c.-40-693_-40-692dup Single submitter
Benign/Likely benign 5
- c.-40-861G>T Multiple submitters
- c.-40-862A>T Multiple submitters ⚠
- p.Ala210= Multiple submitters encephalopathy due to defective mitochondrial and peroxisomal fission 2
- p.Leu256= Multiple submitters Inborn genetic diseases
- p.Pro31Leu Multiple submitters encephalopathy due to defective mitochondrial and peroxisomal fission 2
Likely benign 56
- c.181+30G>A Multiple submitters
- c.440+2458T>G Multiple submitters
- c.600-17G>A Multiple submitters
- c.-40-888G>A Multiple submitters
- c.*18A>G Multiple submitters
- p.Leu147= Multiple submitters Inborn genetic diseases
- p.Leu85= Multiple submitters
- p.Thr233= Multiple submitters
- p.Tyr9= Multiple submitters
- c.181+16T>C Single submitter
- c.181+8A>G Single submitter
- c.182-14T>C Single submitter
- c.351+2_351+3insTGGCAGACTAAA Single submitter
- c.440+16A>G Single submitter
- c.440+19A>G Single submitter
- c.440+2348C>A Single submitter
- c.440+2356T>C Single submitter
- c.440+2365G>A Single submitter Inborn genetic diseases
- c.440+2419G>A Single submitter
- c.441-13C>T Single submitter
- c.441-17T>C Single submitter
- c.599+14C>T Single submitter
- c.600-1578T>A Single submitter
- c.659+13A>G Single submitter
- c.660-106A>G Single submitter
- c.660-3C>T Single submitter
- c.660-7T>C Single submitter
- c.744+32C>T Single submitter
- c.745-42A>T Single submitter
- c.745-6A>G Single submitter
- c.-139TC[1] Single submitter
- c.-40-18T>C Single submitter
- c.-40-79G>A Single submitter
- c.-40-829T>G Single submitter
- c.-40-842_-40-841insGTGAGCAGGGCAGCATTTCCTTCTCCCACTGCTGCTGAGATGGCAGAAATTAGTCGAAT Single submitter
- c.-40-857C>T Single submitter
- c.-40-859G>T Single submitter Inborn genetic diseases
- c.-50T>A Single submitter
- c.*308C>T Single submitter
- p.Ala120_Val121insIleArgAla Single submitter
- p.Ala187= Single submitter
- p.Ala209= Single submitter
- p.Arg128Gln Single submitter Inborn genetic diseases
- p.Arg291= Single submitter
- p.Asn33= Single submitter
- p.Leu124= Single submitter
- p.Leu195= Single submitter
- p.Leu87= Single submitter
- p.Pro54= Single submitter
- p.Ser48= Single submitter
- p.Ser67Pro Single submitter Inborn genetic diseases
- p.Thr228= Single submitter
- p.Thr229= Single submitter
- p.Val23= Single submitter
- c.-40-833A>G No assertion criteria MFF-related disorder
- p.His216= No assertion criteria MFF-related disorder
Uncertain significance 89
- p.Arg126del Multiple submitters
- p.Arg128Trp Multiple submitters Inborn genetic diseases ⚠
- p.Arg136Cys Multiple submitters ⚠
- p.Arg136His Multiple submitters Inborn genetic diseases ⚠
- p.Arg199His Multiple submitters ⚠
- p.Arg6Gln Multiple submitters Inborn genetic diseases ⚠
- p.Arg92His Multiple submitters Inborn genetic diseases ⚠
- p.Asp75Asn Multiple submitters encephalopathy due to defective mitochondrial and peroxisomal fission 2 ⚠
- p.Gln52His Multiple submitters Inborn genetic diseases ⚠
- p.His215Pro Multiple submitters Inborn genetic diseases ⚠
- p.Ile230Thr Multiple submitters Inborn genetic diseases ⚠
- p.Ile250Ser Multiple submitters Inborn genetic diseases ⚠
- p.Ile50Leu Multiple submitters Inborn genetic diseases ⚠
- p.Met273Ile Multiple submitters Inborn genetic diseases ⚠
- p.Pro214Arg Multiple submitters Inborn genetic diseases ⚠
- p.Ser69Ala Multiple submitters Inborn genetic diseases ⚠
- p.Thr149Ile Multiple submitters Inborn genetic diseases ⚠
- p.Thr211Asn Multiple submitters Inborn genetic diseases ⚠
- p.Thr95Met Multiple submitters
- c.182-3T>C Single submitter
- c.351_351+1insATCC Single submitter encephalopathy due to defective mitochondrial and peroxisomal fission 2
- c.440+2379A>T Single submitter ⚠
- c.440+2418C>T Single submitter Inborn genetic diseases ⚠
- c.440+2436A>G Single submitter ⚠
- c.744+4T>A Single submitter Inborn genetic diseases
- c.744+5_744+6insCAAACTAAA Single submitter Inborn genetic diseases
- c.-40-842_-40-841insGTGAGCAGGGCAGCATT Single submitter Possible mitochondrial disorder - nuclear genes
- c.-40-843G>A Single submitter Inborn genetic diseases ⚠
- c.-9G>C Single submitter Inborn genetic diseases ⚠
- p.Ala208Thr Single submitter Inborn genetic diseases ⚠
- p.Ala267Ser Single submitter Inborn genetic diseases ⚠
- p.Ala34Val Single submitter ⚠
- p.Ala72Thr Single submitter Inborn genetic diseases ⚠
- p.Arg119Gln Single submitter ⚠
- p.Arg136Ser Single submitter Inborn genetic diseases ⚠
- p.Arg143Gly Single submitter Inborn genetic diseases ⚠
- p.Arg156Trp Single submitter Inborn genetic diseases ⚠
- p.Arg174Cys Single submitter Inborn genetic diseases ⚠
- p.Arg174His Single submitter Inborn genetic diseases ⚠
- p.Arg199Cys Single submitter ⚠
- p.Arg200Gly Single submitter ⚠
- p.Arg204Cys Single submitter Inborn genetic diseases ⚠
- p.Arg204His Single submitter ⚠
- p.Arg20Gln Single submitter Inborn genetic diseases ⚠
- p.Arg20Leu Single submitter Inborn genetic diseases ⚠
- p.Arg254Lys Single submitter Inborn genetic diseases
- p.Arg255His Single submitter Inborn genetic diseases ⚠
- p.Arg266Cys Single submitter ⚠
- p.Arg290Gly Single submitter Inborn genetic diseases ⚠
- p.Arg290His Single submitter
- p.Arg291His Single submitter Inborn genetic diseases
- p.Asn263Asp Single submitter ⚠
- p.Asn63Lys Single submitter Inborn genetic diseases ⚠
- p.Asp217Ala Single submitter Inborn genetic diseases ⚠
- p.Gln189Arg Single submitter ⚠
- p.Gln257Leu Single submitter Inborn genetic diseases ⚠
- p.Gln8His Single submitter Inborn genetic diseases ⚠
- p.Glu10Lys Single submitter Inborn genetic diseases ⚠
- p.Glu25Gly Single submitter
- p.Glu37Gln Single submitter Inborn genetic diseases ⚠
- p.Gly167Arg Single submitter Inborn genetic diseases ⚠
- p.Gly205Arg Single submitter Inborn genetic diseases ⚠
- p.His216Asp Single submitter Inborn genetic diseases ⚠
- p.Ile226Met Single submitter encephalopathy due to defective mitochondrial and peroxisomal fission 2 ⚠
- p.Ile250Val Single submitter ⚠
- p.Ile57Thr Single submitter Inborn genetic diseases ⚠
- p.Leu74Val Single submitter Inborn genetic diseases ⚠
- p.Leu76Ile Single submitter Inborn genetic diseases ⚠
- p.Leu76Phe Single submitter Inborn genetic diseases ⚠
- p.Leu76Val Single submitter ⚠
- p.Met162Leu Single submitter Inborn genetic diseases ⚠
- p.Met162Val Single submitter Inborn genetic diseases ⚠
- p.Phe280Cys Single submitter ⚠
- p.Phe68Leu Single submitter Inborn genetic diseases ⚠
- p.Pro113Thr Single submitter encephalopathy due to defective mitochondrial and peroxisomal fission 2 ⚠
- p.Pro150Ser Single submitter ⚠
- p.Pro214Leu Single submitter ⚠
- p.Pro71Leu Single submitter Inborn genetic diseases ⚠
- p.Pro81Leu Single submitter ⚠
- p.Ser212Pro Single submitter ⚠
- p.Thr228Ile Single submitter Inborn genetic diseases ⚠
- p.Thr228Lys Single submitter Inborn genetic diseases ⚠
- p.Thr233Ala Single submitter Inborn genetic diseases ⚠
- p.Thr277Ile Single submitter Inborn genetic diseases ⚠
- p.Trp286Arg Single submitter encephalopathy due to defective mitochondrial and peroxisomal fission 2 ⚠
- p.Tyr9Cys Single submitter ⚠
- p.Val239Ile Single submitter Inborn genetic diseases ⚠
- p.Val29Ala Single submitter ⚠
- p.Gly206del No assertion criteria microcephaly