PYCR2 — 180 ClinVar variants
All ClinVar germline PYCR2 variants across every classification, each assembled from ClinVar, gnomAD, AlphaMissense, conservation and more. 68 flagged for review →
10 Pathogenic · 5 Pathogenic/Likely pathogenic · 21 Likely pathogenic · 11 Conflicting · 6 Benign · 5 Benign/Likely benign · 52 Likely benign · 70 Uncertain significance
Full PYCR2 gene report on Sugi Atlas → Gene function, pathways, protein structure, constraint & interactions⚑ Evidence disagreements 68
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 vs ClinVar 1
ClinVar calls these pathogenic, but the computational predictors lean tolerated — the highest-value review flag.
-
PYCR2 p.Ala181Ser
Likely pathogenic
Single submitter
Inborn genetic diseases
Predictors agree, ClinVar conflicts 8
ClinVar submitters conflict, but the independent predictors unanimously agree — a QC review flag, not a reclassification.
-
PYCR2 p.Ala14Pro
Conflicting
Single submitter
leukodystrophy, hypomyelinating, 10
- PYCR2 p.Ala207Val Conflicting Single submitter
- PYCR2 p.Arg199Gln Conflicting Single submitter
-
PYCR2 p.Arg199Trp
Conflicting
Single submitter
leukodystrophy, hypomyelinating, 10
-
PYCR2 p.Arg251His
Conflicting
Single submitter
leukodystrophy, hypomyelinating, 10
-
PYCR2 p.Arg54Cys
Conflicting
Single submitter
Inborn genetic diseases
-
PYCR2 p.Met216Arg
Conflicting
Single submitter
leukodystrophy, hypomyelinating, 10
-
PYCR2 p.Tyr13Cys
Conflicting
Single submitter
Inborn genetic diseases
Predictors lean, ClinVar uncertain 49
ClinVar classifies these uncertain (VUS), but the independent predictors unanimously lean one way — a triage signal for review, not a reclassification.
-
PYCR2 p.Ala187Thr
Uncertain significance
Multiple submitters
leukodystrophy, hypomyelinating, 10
-
PYCR2 p.Arg17Pro
Uncertain significance
Multiple submitters
leukodystrophy, hypomyelinating, 10
-
PYCR2 p.Thr139Ser
Uncertain significance
Multiple submitters
Inborn genetic diseases
-
PYCR2 p.Val143Met
Uncertain significance
Multiple submitters
Inborn genetic diseases
-
PYCR2 p.Val65Ile
Uncertain significance
Multiple submitters
Inborn genetic diseases
-
PYCR2 p.Ala189Val
Uncertain significance
Single submitter
leukodystrophy, hypomyelinating, 10
-
PYCR2 p.Ala22Ser
Uncertain significance
Single submitter
Inborn genetic diseases
-
PYCR2 p.Ala241Thr
Uncertain significance
Single submitter
leukodystrophy, hypomyelinating, 10
-
PYCR2 p.Ala281Thr
Uncertain significance
Single submitter
Inborn genetic diseases
-
PYCR2 p.Ala44Thr
Uncertain significance
Single submitter
Inborn genetic diseases
-
PYCR2 p.Arg251Leu
Uncertain significance
Single submitter
leukodystrophy, hypomyelinating, 10
-
PYCR2 p.Arg289Lys
Uncertain significance
Single submitter
Inborn genetic diseases
-
PYCR2 p.Arg54Pro
Uncertain significance
Single submitter
Inborn genetic diseases
- PYCR2 p.Cys262Trp Uncertain significance Single submitter
-
PYCR2 p.Gln226His
Uncertain significance
Single submitter
leukodystrophy, hypomyelinating, 10
-
PYCR2 p.Gln274Arg
Uncertain significance
Single submitter
Inborn genetic diseases
-
PYCR2 p.Gly146Arg
Uncertain significance
Single submitter
Inborn genetic diseases
- PYCR2 p.Gly18Ala Uncertain significance Single submitter
-
PYCR2 p.Gly206Arg
Uncertain significance
Single submitter
leukodystrophy, hypomyelinating, 10
- PYCR2 p.Gly249Arg Uncertain significance Single submitter
- PYCR2 p.His140Pro Uncertain significance Single submitter
-
PYCR2 p.His240Asp
Uncertain significance
Single submitter
leukodystrophy, hypomyelinating, 10
-
PYCR2 p.His28Pro
Uncertain significance
Single submitter
Inborn genetic diseases
- PYCR2 p.His28Tyr Uncertain significance Single submitter
-
PYCR2 p.His62Tyr
Uncertain significance
Single submitter
Inborn genetic diseases
- PYCR2 p.Ile203Val Uncertain significance Single submitter
-
PYCR2 p.Leu300Val
Uncertain significance
Single submitter
Inborn genetic diseases
- PYCR2 p.Leu45His Uncertain significance Single submitter
-
PYCR2 p.Leu66Arg
Uncertain significance
Single submitter
Inborn genetic diseases
- PYCR2 p.Lys116Glu Uncertain significance Single submitter
-
PYCR2 p.Lys194Asn
Uncertain significance
Single submitter
Inborn genetic diseases
- PYCR2 p.Lys215Glu Uncertain significance Single submitter
-
PYCR2 p.Met153Thr
Uncertain significance
Single submitter
leukodystrophy, hypomyelinating, 10
-
PYCR2 p.Met183Thr
Uncertain significance
Single submitter
Inborn genetic diseases
- PYCR2 p.Met183Val Uncertain significance Single submitter
-
PYCR2 p.Met37Val
Uncertain significance
Single submitter
Inborn genetic diseases
- PYCR2 p.Met48Ile Uncertain significance Single submitter
-
PYCR2 p.Phe250Val
Uncertain significance
Single submitter
leukodystrophy, hypomyelinating, 10
- PYCR2 p.Ser298Phe Uncertain significance Single submitter
-
PYCR2 p.Ser304Arg
Uncertain significance
Single submitter
Inborn genetic diseases
-
PYCR2 p.Ser63Arg
Uncertain significance
Single submitter
Inborn genetic diseases
- PYCR2 p.Thr133Pro Uncertain significance Single submitter
- PYCR2 p.Thr137Met Uncertain significance Single submitter
-
PYCR2 p.Thr296Ala
Uncertain significance
Single submitter
Inborn genetic diseases
-
PYCR2 p.Thr59Met
Uncertain significance
Single submitter
Inborn genetic diseases
- PYCR2 p.Val170Ile Uncertain significance Single submitter
-
PYCR2 p.Val70Leu
Uncertain significance
Single submitter
Inborn genetic diseases
-
PYCR2 p.Val86Met
Uncertain significance
Single submitter
Inborn genetic diseases
-
PYCR2 p.Val93Gly
Uncertain significance
Single submitter
Inborn genetic diseases
Predictors split 10
The independent predictors disagree with each other — read with care.
-
PYCR2 p.Arg200Cys
Uncertain significance
Multiple submitters
Inborn genetic diseases
-
PYCR2 p.Ile82Thr
Uncertain significance
Multiple submitters
Inborn genetic diseases
-
PYCR2 p.Val92Met
Uncertain significance
Multiple submitters
Inborn genetic diseases
- PYCR2 p.Asp273His Uncertain significance Single submitter
- PYCR2 p.Cys225Trp Uncertain significance Single submitter
-
PYCR2 p.Glu221Lys
Uncertain significance
Single submitter
Inborn genetic diseases
-
PYCR2 p.Met153Ile
Uncertain significance
Single submitter
Inborn genetic diseases
- PYCR2 p.Val156Leu Uncertain significance Single submitter
- PYCR2 p.Val162Leu Uncertain significance Single submitter
-
PYCR2 p.Gly146Glu
Uncertain significance
No assertion criteria
microcephaly
All PYCR2 variants
Pathogenic 10
- p.Arg266Ter Multiple submitters leukodystrophy, hypomyelinating, 10
- c.540+2T>G Single submitter
- c.67+2C>T Single submitter leukodystrophy, hypomyelinating, 10
- p.Ala207fs Single submitter
- p.Arg119fs Single submitter leukodystrophy, hypomyelinating, 10
- p.Gln112Ter Single submitter
- p.Gln147Ter Single submitter
- p.Phe250fs Single submitter leukodystrophy, hypomyelinating, 10
- p.Arg251Cys No assertion criteria leukodystrophy, hypomyelinating, 10
- p.Cys232Gly No assertion criteria leukodystrophy, hypomyelinating, 10
Pathogenic/Likely pathogenic 5
- p.Arg119Cys Multiple submitters leukodystrophy, hypomyelinating, 10
- p.Asp85fs Multiple submitters leukodystrophy, hypomyelinating, 10
- p.Gln226Ter Multiple submitters leukodystrophy, hypomyelinating, 10
- p.Leu254fs Multiple submitters leukodystrophy, hypomyelinating, 10
- p.Val104fs Multiple submitters PYCR2-related disorder
Likely pathogenic 21
- p.Arg119His Multiple submitters leukodystrophy, hypomyelinating, 10
- c.138+1G>T Single submitter leukodystrophy, hypomyelinating, 10
- c.318+1G>A Single submitter leukodystrophy, hypomyelinating, 10
- c.633+1G>A Single submitter leukodystrophy, hypomyelinating, 10
- p.Ala181Ser Single submitter Inborn genetic diseases ⚠
- p.Arg119Leu Single submitter
- p.Arg264Ter Single submitter
- p.Asp229Gly Single submitter leukodystrophy, hypomyelinating, 10
- p.Gln10Ter Single submitter leukodystrophy
- p.Gly177Arg Single submitter leukodystrophy, hypomyelinating, 10
- p.Gly192fs Single submitter PYCR2-related disorder
- p.Ile239fs Single submitter PYCR2-related disorder
- p.Met1Leu Single submitter PYCR2-related disorder
- p.Pro125His Single submitter
- p.Thr124fs Single submitter metachromatic leukodystrophy
- p.Thr133fs Single submitter leukodystrophy, hypomyelinating, 10
- p.Tyr135fs Single submitter leukodystrophy, hypomyelinating, 10
- p.Val134Met Single submitter leukodystrophy, hypomyelinating, 10
- p.Val193Met Single submitter leukodystrophy, hypomyelinating, 10
- p.Val258Ala Single submitter leukodystrophy, hypomyelinating, 10
- p.Val86Gly Single submitter leukodystrophy, hypomyelinating, 10
Conflicting classifications of pathogenicity 11
- c.139-2A>C Single submitter leukodystrophy, hypomyelinating, 10
- c.319-1G>C Single submitter leukodystrophy, hypomyelinating, 10
- p.Ala14Pro Single submitter leukodystrophy, hypomyelinating, 10 ⚠
- p.Ala207Val Single submitter ⚠
- p.Arg199Gln Single submitter ⚠
- p.Arg199Trp Single submitter leukodystrophy, hypomyelinating, 10 ⚠
- p.Arg251His Single submitter leukodystrophy, hypomyelinating, 10 ⚠
- p.Arg54Cys Single submitter Inborn genetic diseases ⚠
- p.Met216Arg Single submitter leukodystrophy, hypomyelinating, 10 ⚠
- p.Thr133= Single submitter
- p.Tyr13Cys Single submitter Inborn genetic diseases ⚠
Benign 6
- c.797+14G>A Multiple submitters leukodystrophy, hypomyelinating, 10
- c.797+9A>C Multiple submitters leukodystrophy, hypomyelinating, 10
- p.Ala314Gly Multiple submitters
- p.Gly306= Multiple submitters
- p.Leu201= Multiple submitters
- p.Asp186= Single submitter
Benign/Likely benign 5
- c.139-7_139-6del Multiple submitters
- c.540+19C>T Multiple submitters
- c.634-3T>C Multiple submitters
- p.Leu308= Multiple submitters leukodystrophy, hypomyelinating, 10
- p.Leu45= Multiple submitters
Likely benign 52
- c.540+20G>A Multiple submitters
- p.Ala96= Multiple submitters
- p.Glu267= Multiple submitters
- p.Leu205= Multiple submitters
- p.Thr171= Multiple submitters
- p.Thr59= Multiple submitters
- c.138+7G>A Single submitter
- c.138+8G>T Single submitter
- c.139-7C>T Single submitter
- c.319-20G>A Single submitter
- c.540+18T>G Single submitter
- c.541-12G>A Single submitter
- c.633+17C>T Single submitter
- c.634-13C>G Single submitter
- c.634-5C>G Single submitter
- c.634-7C>T Single submitter
- c.68-13C>G Single submitter
- c.68-19A>C Single submitter
- c.68-9C>T Single submitter
- c.797+16G>A Single submitter
- c.798-13G>A Single submitter
- p.Ala169= Single submitter
- p.Ala237= Single submitter
- p.Ala27= Single submitter
- p.Ala44= Single submitter
- p.Ala69Thr Single submitter Inborn genetic diseases
- p.Ala8= Single submitter
- p.Ala84= Single submitter
- p.Arg89= Single submitter
- p.Asn230= Single submitter
- p.Asn38= Single submitter
- p.Asp145= Single submitter
- p.Asp64= Single submitter
- p.Gly175= Single submitter
- p.Gly191= Single submitter
- p.Gly249= Single submitter
- p.His240= Single submitter
- p.Ile167= Single submitter
- p.Ile6= Single submitter
- p.Leu15= Single submitter
- p.Leu211= Single submitter
- p.Leu254= Single submitter
- p.Leu292= Single submitter
- p.Leu52= Single submitter
- p.Pro125= Single submitter
- p.Pro76= Single submitter
- p.Ser176= Single submitter
- p.Ser2= Single submitter
- p.Ser220= Single submitter
- p.Thr100= Single submitter
- p.Thr139= Single submitter
- c.318+6C>T No assertion criteria PYCR2-related disorder
Uncertain significance 70
- p.Ala187Thr Multiple submitters leukodystrophy, hypomyelinating, 10 ⚠
- p.Arg17Pro Multiple submitters leukodystrophy, hypomyelinating, 10 ⚠
- p.Arg200Cys Multiple submitters Inborn genetic diseases ⚠
- p.Ile82Thr Multiple submitters Inborn genetic diseases ⚠
- p.Ser261del Multiple submitters
- p.Thr139Ser Multiple submitters Inborn genetic diseases ⚠
- p.Val143Met Multiple submitters Inborn genetic diseases ⚠
- p.Val156Met Multiple submitters
- p.Val65Ile Multiple submitters Inborn genetic diseases ⚠
- p.Val92Met Multiple submitters Inborn genetic diseases ⚠
- c.319-1G>A Single submitter leukodystrophy, hypomyelinating, 10
- c.67+6C>A Single submitter leukodystrophy, hypomyelinating, 10
- p.Ala189Val Single submitter leukodystrophy, hypomyelinating, 10 ⚠
- p.Ala22Ser Single submitter Inborn genetic diseases ⚠
- p.Ala241Thr Single submitter leukodystrophy, hypomyelinating, 10 ⚠
- p.Ala281Thr Single submitter Inborn genetic diseases ⚠
- p.Ala44Thr Single submitter Inborn genetic diseases ⚠
- p.Arg251Leu Single submitter leukodystrophy, hypomyelinating, 10 ⚠
- p.Arg289Lys Single submitter Inborn genetic diseases ⚠
- p.Arg46Ser Single submitter
- p.Arg54Pro Single submitter Inborn genetic diseases ⚠
- p.Asp273His Single submitter ⚠
- p.Cys225Trp Single submitter ⚠
- p.Cys262Trp Single submitter ⚠
- p.Gln226His Single submitter leukodystrophy, hypomyelinating, 10 ⚠
- p.Gln274Arg Single submitter Inborn genetic diseases ⚠
- p.Glu221Lys Single submitter Inborn genetic diseases ⚠
- p.Glu293Ter Single submitter
- p.Gly146Arg Single submitter Inborn genetic diseases ⚠
- p.Gly18Ala Single submitter ⚠
- p.Gly206Arg Single submitter leukodystrophy, hypomyelinating, 10 ⚠
- p.Gly249Arg Single submitter ⚠
- p.His140Pro Single submitter ⚠
- p.His240Asp Single submitter leukodystrophy, hypomyelinating, 10 ⚠
- p.His28Pro Single submitter Inborn genetic diseases ⚠
- p.His28Tyr Single submitter ⚠
- p.His62Tyr Single submitter Inborn genetic diseases ⚠
- p.Ile203Val Single submitter ⚠
- p.Leu300Val Single submitter Inborn genetic diseases ⚠
- p.Leu45His Single submitter ⚠
- p.Leu66Arg Single submitter Inborn genetic diseases ⚠
- p.Lys116Glu Single submitter ⚠
- p.Lys194Asn Single submitter Inborn genetic diseases ⚠
- p.Lys215Glu Single submitter ⚠
- p.Met153Ile Single submitter Inborn genetic diseases ⚠
- p.Met153Thr Single submitter leukodystrophy, hypomyelinating, 10 ⚠
- p.Met183Thr Single submitter Inborn genetic diseases ⚠
- p.Met183Val Single submitter ⚠
- p.Met1Arg Single submitter
- p.Met1Ile Single submitter
- p.Met37Val Single submitter Inborn genetic diseases ⚠
- p.Met48Ile Single submitter ⚠
- p.Phe250Val Single submitter leukodystrophy, hypomyelinating, 10 ⚠
- p.Ser298Phe Single submitter ⚠
- p.Ser304Arg Single submitter Inborn genetic diseases ⚠
- p.Ser63Arg Single submitter Inborn genetic diseases ⚠
- p.Thr133Pro Single submitter ⚠
- p.Thr137Met Single submitter ⚠
- p.Thr285Ile Single submitter Inborn genetic diseases
- p.Thr296Ala Single submitter Inborn genetic diseases ⚠
- p.Thr59Met Single submitter Inborn genetic diseases ⚠
- p.Val156Leu Single submitter ⚠
- p.Val162Leu Single submitter ⚠
- p.Val170Ile Single submitter ⚠
- p.Val193= Single submitter
- p.Val290Leu Single submitter Inborn genetic diseases
- p.Val70Leu Single submitter Inborn genetic diseases ⚠
- p.Val86Met Single submitter Inborn genetic diseases ⚠
- p.Val93Gly Single submitter Inborn genetic diseases ⚠
- p.Gly146Glu No assertion criteria microcephaly ⚠