DCAF17 — 567 ClinVar variants

All ClinVar germline DCAF17 variants across every classification, each assembled from ClinVar, gnomAD, AlphaMissense, conservation and more. 115 flagged for review →

36 Pathogenic · 6 Pathogenic/Likely pathogenic · 15 Likely pathogenic · 20 Conflicting · 58 Benign · 6 Benign/Likely benign · 257 Likely benign · 169 Uncertain significance

Full DCAF17 gene report on Sugi Atlas → Gene function, pathways, protein structure, constraint & interactions

⚑ Evidence disagreements 115

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 2

ClinVar submitters conflict, but the independent predictors unanimously agree — a QC review flag, not a reclassification.

Predictors lean, ClinVar uncertain 68

ClinVar classifies these uncertain (VUS), but the independent predictors unanimously lean one way — a triage signal for review, not a reclassification.

Predictors split 45

The independent predictors disagree with each other — read with care.

All DCAF17 variants

Pathogenic 36

  • p.Ala147fs Multiple submitters Woodhouse-Sakati syndrome
  • p.Ile97fs Multiple submitters Woodhouse-Sakati syndrome
  • p.Trp129Ter Multiple submitters Woodhouse-Sakati syndrome
  • p.Trp302Ter Multiple submitters Woodhouse-Sakati syndrome
  • c.1091+2T>C Single submitter Woodhouse-Sakati syndrome
  • p.Ala351fs Single submitter Woodhouse-Sakati syndrome
  • p.Arg194fs Single submitter Woodhouse-Sakati syndrome
  • p.Asp251fs Single submitter Woodhouse-Sakati syndrome
  • p.Cys20Ter Single submitter Woodhouse-Sakati syndrome
  • p.Gln179Ter Single submitter Woodhouse-Sakati syndrome
  • p.Gln247Ter Single submitter Woodhouse-Sakati syndrome
  • p.Gly181fs Single submitter Woodhouse-Sakati syndrome
  • p.Gly299fs Single submitter Woodhouse-Sakati syndrome
  • p.His185fs Single submitter Woodhouse-Sakati syndrome
  • p.His357fs Single submitter Woodhouse-Sakati syndrome
  • p.Ile225fs Single submitter Woodhouse-Sakati syndrome
  • p.Leu235_Tyr236insTer Single submitter Woodhouse-Sakati syndrome
  • p.Leu366Ter Single submitter Woodhouse-Sakati syndrome
  • p.Lys84fs Single submitter Woodhouse-Sakati syndrome
  • p.Lys96_Ile97insTer Single submitter Woodhouse-Sakati syndrome
  • p.Met1Leu Single submitter Woodhouse-Sakati syndrome
  • p.Met1Thr Single submitter Woodhouse-Sakati syndrome
  • p.Phe424fs Single submitter Woodhouse-Sakati syndrome
  • p.Phe498fs Single submitter Woodhouse-Sakati syndrome
  • p.Ser376fs Single submitter Woodhouse-Sakati syndrome
  • p.Ser411fs Single submitter Woodhouse-Sakati syndrome
  • p.Thr402fs Single submitter Woodhouse-Sakati syndrome
  • p.Trp103Ter Single submitter Woodhouse-Sakati syndrome
  • p.Trp51Ter Single submitter Woodhouse-Sakati syndrome
  • p.Tyr346Ter Single submitter Woodhouse-Sakati syndrome
  • c.1091+6T>G No assertion criteria Woodhouse-Sakati syndrome
  • c.127-3_127-1delinsAA No assertion criteria Woodhouse-Sakati syndrome
  • c.1422+5G>T No assertion criteria Woodhouse-Sakati syndrome
  • p.Ala17fs No assertion criteria Woodhouse-Sakati syndrome
  • p.Lys90fs No assertion criteria Woodhouse-Sakati syndrome
  • p.Ser114Ter No assertion criteria Woodhouse-Sakati syndrome

Pathogenic/Likely pathogenic 6

  • c.127-1G>C Multiple submitters Woodhouse-Sakati syndrome
  • p.Arg194Ter Multiple submitters Woodhouse-Sakati syndrome
  • p.Arg496fs Multiple submitters neurodegeneration with brain iron accumulation
  • p.Gln29Ter Multiple submitters Woodhouse-Sakati syndrome
  • p.Gly138fs Multiple submitters Woodhouse-Sakati syndrome
  • p.Met1Val Multiple submitters Woodhouse-Sakati syndrome

Likely pathogenic 15

  • c.1092-2A>G Single submitter Woodhouse-Sakati syndrome
  • c.1183-2A>G Single submitter Woodhouse-Sakati syndrome
  • c.126+2T>G Single submitter Woodhouse-Sakati syndrome
  • c.1267-2A>C Single submitter Woodhouse-Sakati syndrome
  • c.322-2A>G Single submitter Woodhouse-Sakati syndrome
  • c.459-7_499del Single submitter
  • c.537+1G>T Single submitter Woodhouse-Sakati syndrome
  • c.628-2A>C Single submitter Woodhouse-Sakati syndrome
  • c.733-1G>C Single submitter Woodhouse-Sakati syndrome
  • c.839-2A>G Single submitter Woodhouse-Sakati syndrome
  • c.982-2A>C Single submitter Woodhouse-Sakati syndrome
  • p.Glu391fs Single submitter Woodhouse-Sakati syndrome
  • p.Lys167fs Single submitter neurodegeneration with brain iron accumulation
  • p.Asp343fs No assertion criteria
  • p.Cys91fs No assertion criteria Woodhouse-Sakati syndrome

Conflicting classifications of pathogenicity 20

Benign 58

Benign/Likely benign 6

  • c.127-15C>A Multiple submitters Woodhouse-Sakati syndrome
  • c.322-14_322-11del Multiple submitters Woodhouse-Sakati syndrome
  • c.537+16C>T Multiple submitters Woodhouse-Sakati syndrome
  • c.*188T>A Multiple submitters Woodhouse-Sakati syndrome
  • p.Ala440= Multiple submitters Woodhouse-Sakati syndrome
  • p.His185Gln Multiple submitters Woodhouse-Sakati syndrome

Likely benign 257

  • c.1183-108G>A Multiple submitters
  • c.322-15_322-14insTT Multiple submitters Woodhouse-Sakati syndrome
  • c.537+196T>C Multiple submitters
  • c.838+126A>T Multiple submitters
  • p.Asn213= Multiple submitters Woodhouse-Sakati syndrome
  • p.Asn361= Multiple submitters Woodhouse-Sakati syndrome
  • p.Glu491= Multiple submitters Woodhouse-Sakati syndrome
  • p.His357= Multiple submitters Woodhouse-Sakati syndrome
  • p.Pro58= Multiple submitters Woodhouse-Sakati syndrome
  • p.Thr475= Multiple submitters Woodhouse-Sakati syndrome
  • c.1091+17G>A Single submitter Woodhouse-Sakati syndrome
  • c.1091+19A>G Single submitter Woodhouse-Sakati syndrome
  • c.1092-10C>T Single submitter Woodhouse-Sakati syndrome
  • c.1092-16C>A Single submitter Woodhouse-Sakati syndrome
  • c.1092-19A>T Single submitter Woodhouse-Sakati syndrome
  • c.1092-8C>G Single submitter Woodhouse-Sakati syndrome
  • c.1092-9C>T Single submitter Woodhouse-Sakati syndrome
  • c.1182+13T>A Single submitter Woodhouse-Sakati syndrome
  • c.1182+13T>G Single submitter Woodhouse-Sakati syndrome
  • c.1182+18T>C Single submitter Woodhouse-Sakati syndrome
  • c.1182+236_1182+240del Single submitter
  • c.1182+7C>A Single submitter Woodhouse-Sakati syndrome
  • c.1182+7C>T Single submitter Woodhouse-Sakati syndrome
  • c.1183-13T>C Single submitter Woodhouse-Sakati syndrome
  • c.1183-4A>G Single submitter Woodhouse-Sakati syndrome
  • c.1183-4A>T Single submitter Woodhouse-Sakati syndrome
  • c.1183-5G>T Single submitter Woodhouse-Sakati syndrome
  • c.1183-7A>C Single submitter Woodhouse-Sakati syndrome
  • c.1183-7A>G Single submitter Woodhouse-Sakati syndrome
  • c.1183-9A>C Single submitter Woodhouse-Sakati syndrome
  • c.1183-9A>G Single submitter Woodhouse-Sakati syndrome
  • c.126+11G>A Single submitter Woodhouse-Sakati syndrome
  • c.126+11G>C Single submitter Woodhouse-Sakati syndrome
  • c.126+12C>G Single submitter Woodhouse-Sakati syndrome
  • c.126+15G>A Single submitter Woodhouse-Sakati syndrome
  • c.126+17C>T Single submitter Woodhouse-Sakati syndrome
  • c.126+18G>A Single submitter Woodhouse-Sakati syndrome
  • c.126+19_126+36dup Single submitter Woodhouse-Sakati syndrome
  • c.126+19G>T Single submitter Woodhouse-Sakati syndrome
  • c.126+7G>C Single submitter Woodhouse-Sakati syndrome
  • c.1266+13C>T Single submitter Woodhouse-Sakati syndrome
  • c.1266+15A>G Single submitter Woodhouse-Sakati syndrome
  • c.1266+17A>G Single submitter Woodhouse-Sakati syndrome
  • c.1266+19A>G Single submitter Woodhouse-Sakati syndrome
  • c.1266+20T>A Single submitter Woodhouse-Sakati syndrome
  • c.1267-13A>G Single submitter Woodhouse-Sakati syndrome
  • c.1267-17A>G Single submitter Woodhouse-Sakati syndrome
  • c.1267-18TATC[2] Single submitter Woodhouse-Sakati syndrome
  • c.1267-9A>G Single submitter Woodhouse-Sakati syndrome
  • c.127-11A>G Single submitter Woodhouse-Sakati syndrome
  • c.127-15C>T Single submitter Woodhouse-Sakati syndrome
  • c.127-18A>G Single submitter Woodhouse-Sakati syndrome
  • c.127-49T>G Single submitter
  • c.1422+13C>T Single submitter Woodhouse-Sakati syndrome
  • c.1422+17G>A Single submitter Woodhouse-Sakati syndrome
  • c.1422+18G>A Single submitter Woodhouse-Sakati syndrome
  • c.1422+18G>T Single submitter Woodhouse-Sakati syndrome
  • c.1422+19A>G Single submitter Woodhouse-Sakati syndrome
  • c.1422+19A>T Single submitter Woodhouse-Sakati syndrome
  • c.1422+8G>T Single submitter Woodhouse-Sakati syndrome
  • c.1423-14G>A Single submitter Woodhouse-Sakati syndrome
  • c.1423-206C>A Single submitter
  • c.1423-20A>G Single submitter Woodhouse-Sakati syndrome
  • c.1423-221C>T Single submitter
  • c.1423-23C>G Single submitter
  • c.1423-4A>G Single submitter Woodhouse-Sakati syndrome
  • c.1423-7G>T Single submitter Woodhouse-Sakati syndrome
  • c.230+11A>G Single submitter Woodhouse-Sakati syndrome
  • c.230+13T>C Single submitter Woodhouse-Sakati syndrome
  • c.230+14del Single submitter Woodhouse-Sakati syndrome
  • c.230+17_230+18insT Single submitter Woodhouse-Sakati syndrome
  • c.230+18A>T Single submitter Woodhouse-Sakati syndrome
  • c.230+9_230+10del Single submitter Woodhouse-Sakati syndrome
  • c.231-11T>G Single submitter Woodhouse-Sakati syndrome
  • c.231-13T>A Single submitter Woodhouse-Sakati syndrome
  • c.231-4C>T Single submitter Woodhouse-Sakati syndrome
  • c.231-7T>C Single submitter Woodhouse-Sakati syndrome
  • c.231-8T>C Single submitter
  • c.231-9T>G Single submitter Woodhouse-Sakati syndrome
  • c.321+11T>C Single submitter Woodhouse-Sakati syndrome
  • c.321+12T>C Single submitter Woodhouse-Sakati syndrome
  • c.321+13T>A Single submitter Woodhouse-Sakati syndrome
  • c.321+15T>C Single submitter Woodhouse-Sakati syndrome
  • c.321+17G>A Single submitter Woodhouse-Sakati syndrome
  • c.321+18A>T Single submitter Woodhouse-Sakati syndrome
  • c.321+20C>A Single submitter Woodhouse-Sakati syndrome
  • c.321+20C>T Single submitter Woodhouse-Sakati syndrome
  • c.321+226del Single submitter
  • c.322-12T>C Single submitter Woodhouse-Sakati syndrome
  • c.322-15T>C Single submitter Woodhouse-Sakati syndrome
  • c.322-16C>T Single submitter Woodhouse-Sakati syndrome
  • c.322-17_322-16insG Single submitter Woodhouse-Sakati syndrome
  • c.322-18C>A Single submitter Woodhouse-Sakati syndrome
  • c.322-19T>C Single submitter Woodhouse-Sakati syndrome
  • c.322-19TC[2] Single submitter Woodhouse-Sakati syndrome
  • c.322-20A>C Single submitter Woodhouse-Sakati syndrome
  • c.322-20A>G Single submitter Woodhouse-Sakati syndrome
  • c.322-7T>G Single submitter Woodhouse-Sakati syndrome
  • c.322-8T>G Single submitter Woodhouse-Sakati syndrome
  • c.458+19T>C Single submitter Woodhouse-Sakati syndrome
  • c.458+202dup Single submitter
  • c.458+7A>G Single submitter Woodhouse-Sakati syndrome
  • c.458+8C>T Single submitter Woodhouse-Sakati syndrome
  • c.459-13A>G Single submitter Woodhouse-Sakati syndrome
  • c.459-20_459-18del Single submitter Woodhouse-Sakati syndrome
  • c.537+20C>G Single submitter Woodhouse-Sakati syndrome
  • c.537+7A>G Single submitter Woodhouse-Sakati syndrome
  • c.537+8_537+21del Single submitter Woodhouse-Sakati syndrome
  • c.538-15_538-13del Single submitter Woodhouse-Sakati syndrome
  • c.538-16T>C Single submitter Woodhouse-Sakati syndrome
  • c.627+10C>A Single submitter Woodhouse-Sakati syndrome
  • c.627+11A>G Single submitter Woodhouse-Sakati syndrome
  • c.627+13T>C Single submitter Woodhouse-Sakati syndrome
  • c.627+17T>C Single submitter Woodhouse-Sakati syndrome
  • c.627+19T>C Single submitter Woodhouse-Sakati syndrome
  • c.627+223G>A Single submitter
  • c.627+8C>T Single submitter Woodhouse-Sakati syndrome
  • c.628-11C>A Single submitter Woodhouse-Sakati syndrome
  • c.628-20T>C Single submitter Woodhouse-Sakati syndrome
  • c.628-5G>A Single submitter Woodhouse-Sakati syndrome
  • c.628-6C>T Single submitter Woodhouse-Sakati syndrome
  • c.732+11C>T Single submitter Woodhouse-Sakati syndrome
  • c.732+16A>G Single submitter Woodhouse-Sakati syndrome
  • c.732+18T>G Single submitter Woodhouse-Sakati syndrome
  • c.732+19T>C Single submitter Woodhouse-Sakati syndrome
  • c.732+20G>A Single submitter Woodhouse-Sakati syndrome
  • c.732+9A>G Single submitter Woodhouse-Sakati syndrome
  • c.733-16T>C Single submitter Woodhouse-Sakati syndrome
  • c.733-20T>A Single submitter Woodhouse-Sakati syndrome
  • c.733-22TTTTG[2] Single submitter Woodhouse-Sakati syndrome
  • c.838+118A>G Single submitter
  • c.838+11del Single submitter Woodhouse-Sakati syndrome
  • c.838+12C>G Single submitter Woodhouse-Sakati syndrome
  • c.838+14A>C Single submitter Woodhouse-Sakati syndrome
  • c.838+14A>G Single submitter Woodhouse-Sakati syndrome
  • c.839-14T>A Single submitter Woodhouse-Sakati syndrome
  • c.839-19C>A Single submitter Woodhouse-Sakati syndrome
  • c.839-9T>C Single submitter Woodhouse-Sakati syndrome
  • c.981+10del Single submitter Woodhouse-Sakati syndrome
  • c.981+15A>G Single submitter Woodhouse-Sakati syndrome
  • c.981+16G>A Single submitter Woodhouse-Sakati syndrome
  • c.981+16G>T Single submitter Woodhouse-Sakati syndrome
  • c.981+20T>C Single submitter Woodhouse-Sakati syndrome
  • c.981+22_981+23del Single submitter Woodhouse-Sakati syndrome
  • c.982-18A>G Single submitter Woodhouse-Sakati syndrome
  • c.982-20A>T Single submitter Woodhouse-Sakati syndrome
  • c.982-251T>C Single submitter
  • c.*15T>C Single submitter Woodhouse-Sakati syndrome
  • c.*2429A>G Single submitter Woodhouse-Sakati syndrome
  • c.*2591A>G Single submitter Woodhouse-Sakati syndrome
  • c.*3705A>G Single submitter Woodhouse-Sakati syndrome
  • c.*530A>G Single submitter Woodhouse-Sakati syndrome
  • c.*677C>A Single submitter Woodhouse-Sakati syndrome
  • p.Ala100= Single submitter Woodhouse-Sakati syndrome
  • p.Ala126= Single submitter Woodhouse-Sakati syndrome
  • p.Ala147= Single submitter Woodhouse-Sakati syndrome
  • p.Ala165= Single submitter Woodhouse-Sakati syndrome
  • p.Ala169= Single submitter Woodhouse-Sakati syndrome
  • p.Ala17= Single submitter Woodhouse-Sakati syndrome
  • p.Ala177= Single submitter Woodhouse-Sakati syndrome
  • p.Ala191= Single submitter Woodhouse-Sakati syndrome
  • p.Ala351= Single submitter Woodhouse-Sakati syndrome
  • p.Ala450= Single submitter Woodhouse-Sakati syndrome
  • p.Ala60= Single submitter Woodhouse-Sakati syndrome
  • p.Arg15= Single submitter Woodhouse-Sakati syndrome
  • p.Arg16= Single submitter Woodhouse-Sakati syndrome
  • p.Arg23= Single submitter Woodhouse-Sakati syndrome
  • p.Arg234= Single submitter Woodhouse-Sakati syndrome
  • p.Arg30= Single submitter Woodhouse-Sakati syndrome
  • p.Arg37= Single submitter Woodhouse-Sakati syndrome
  • p.Arg5= Single submitter Woodhouse-Sakati syndrome
  • p.Arg72= Single submitter Woodhouse-Sakati syndrome
  • p.Arg83= Single submitter Woodhouse-Sakati syndrome
  • p.Asn128= Single submitter Woodhouse-Sakati syndrome
  • p.Asn70= Single submitter Woodhouse-Sakati syndrome
  • p.Asp158= Single submitter Woodhouse-Sakati syndrome
  • p.Asp428= Single submitter Woodhouse-Sakati syndrome
  • p.Asp69= Single submitter Woodhouse-Sakati syndrome
  • p.Cys20= Single submitter Woodhouse-Sakati syndrome
  • p.Cys520= Single submitter Woodhouse-Sakati syndrome
  • p.Gln161= Single submitter Woodhouse-Sakati syndrome
  • p.Gln183= Single submitter Woodhouse-Sakati syndrome
  • p.Gln248= Single submitter Woodhouse-Sakati syndrome
  • p.Gln29= Single submitter Woodhouse-Sakati syndrome
  • p.Gln504= Single submitter Woodhouse-Sakati syndrome
  • p.Glu287= Single submitter Woodhouse-Sakati syndrome
  • p.Glu420= Single submitter Woodhouse-Sakati syndrome
  • p.Glu511= Single submitter Woodhouse-Sakati syndrome
  • p.Glu87= Single submitter Woodhouse-Sakati syndrome
  • p.Glu98= Single submitter Woodhouse-Sakati syndrome
  • p.Gly19= Single submitter Woodhouse-Sakati syndrome
  • p.Gly253= Single submitter Woodhouse-Sakati syndrome
  • p.Gly259= Single submitter Woodhouse-Sakati syndrome
  • p.Gly26= Single submitter Woodhouse-Sakati syndrome
  • p.Gly510= Single submitter Woodhouse-Sakati syndrome
  • p.His221= Single submitter Woodhouse-Sakati syndrome
  • p.His489= Single submitter Woodhouse-Sakati syndrome
  • p.Ile110= Single submitter Woodhouse-Sakati syndrome
  • p.Ile210= Single submitter Woodhouse-Sakati syndrome
  • p.Ile241= Single submitter Woodhouse-Sakati syndrome
  • p.Ile305= Single submitter Woodhouse-Sakati syndrome
  • p.Ile426= Single submitter Woodhouse-Sakati syndrome
  • p.Ile444= Single submitter Woodhouse-Sakati syndrome
  • p.Leu102= Single submitter Woodhouse-Sakati syndrome
  • p.Leu121= Single submitter Woodhouse-Sakati syndrome
  • p.Leu141= Single submitter Woodhouse-Sakati syndrome
  • p.Leu18= Single submitter Woodhouse-Sakati syndrome
  • p.Leu188= Single submitter Woodhouse-Sakati syndrome
  • p.Leu196= Single submitter Woodhouse-Sakati syndrome
  • p.Leu200= Single submitter Woodhouse-Sakati syndrome
  • p.Leu235= Single submitter Woodhouse-Sakati syndrome
  • p.Leu291= Single submitter Woodhouse-Sakati syndrome
  • p.Leu322= Single submitter Woodhouse-Sakati syndrome
  • p.Leu33= Single submitter Woodhouse-Sakati syndrome
  • p.Leu36= Single submitter Woodhouse-Sakati syndrome
  • p.Leu39= Single submitter Woodhouse-Sakati syndrome
  • p.Leu486= Single submitter Woodhouse-Sakati syndrome
  • p.Lys425= Single submitter Woodhouse-Sakati syndrome
  • p.Lys46= Single submitter Woodhouse-Sakati syndrome
  • p.Lys6Gln Single submitter Woodhouse-Sakati syndrome
  • p.Phe193= Single submitter Woodhouse-Sakati syndrome
  • p.Phe270= Single submitter Woodhouse-Sakati syndrome
  • p.Pro197= Single submitter Woodhouse-Sakati syndrome
  • p.Pro3= Single submitter Woodhouse-Sakati syndrome
  • p.Pro349= Single submitter Woodhouse-Sakati syndrome
  • p.Pro467= Single submitter Woodhouse-Sakati syndrome
  • p.Pro7= Single submitter Woodhouse-Sakati syndrome
  • p.Ser168= Single submitter Woodhouse-Sakati syndrome
  • p.Ser199= Single submitter Woodhouse-Sakati syndrome
  • p.Ser220= Single submitter
  • p.Ser290= Single submitter Woodhouse-Sakati syndrome
  • p.Ser404= Single submitter Woodhouse-Sakati syndrome
  • p.Ser465= Single submitter Woodhouse-Sakati syndrome
  • p.Ser519= Single submitter Woodhouse-Sakati syndrome
  • p.Ser80= Single submitter Woodhouse-Sakati syndrome
  • p.Ser92= Single submitter Woodhouse-Sakati syndrome
  • p.Thr137= Single submitter Woodhouse-Sakati syndrome
  • p.Thr218= Single submitter Woodhouse-Sakati syndrome
  • p.Thr262= Single submitter Woodhouse-Sakati syndrome
  • p.Thr307= Single submitter Woodhouse-Sakati syndrome
  • p.Thr400= Single submitter Woodhouse-Sakati syndrome
  • p.Thr45= Single submitter Woodhouse-Sakati syndrome
  • p.Thr509= Single submitter Woodhouse-Sakati syndrome
  • p.Tyr145= Single submitter Woodhouse-Sakati syndrome
  • p.Tyr149= Single submitter Woodhouse-Sakati syndrome
  • p.Tyr236= Single submitter Woodhouse-Sakati syndrome
  • p.Tyr429= Single submitter Woodhouse-Sakati syndrome
  • p.Tyr476= Single submitter Woodhouse-Sakati syndrome
  • p.Tyr86= Single submitter Woodhouse-Sakati syndrome
  • p.Val192= Single submitter Woodhouse-Sakati syndrome
  • p.Val27= Single submitter Woodhouse-Sakati syndrome
  • p.Val288= Single submitter Woodhouse-Sakati syndrome
  • p.Val316= Single submitter Woodhouse-Sakati syndrome
  • p.Val408= Single submitter Woodhouse-Sakati syndrome
  • p.Val480= Single submitter Woodhouse-Sakati syndrome
  • p.Val9= Single submitter Woodhouse-Sakati syndrome
  • c.322-20_322-19del No assertion criteria DCAF17-related disorder

Uncertain significance 169