CHRNB1 — 588 ClinVar variants

All ClinVar germline CHRNB1 variants across every classification, each assembled from ClinVar, gnomAD, AlphaMissense, conservation and more. 254 flagged for review →

14 Pathogenic · 3 Pathogenic/Likely pathogenic · 16 Likely pathogenic · 34 Conflicting · 46 Benign · 12 Benign/Likely benign · 158 Likely benign · 305 Uncertain significance

Full CHRNB1 gene report on Sugi Atlas → Gene function, pathways, protein structure, constraint & interactions

⚑ Evidence disagreements 254

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 13

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

Predictors lean, ClinVar uncertain 190

ClinVar classifies these uncertain (VUS), but the independent predictors unanimously lean one way — a triage signal for review, not a reclassification. · showing the 150 best-reviewed of 190

Predictors split 51

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

All CHRNB1 variants

Pathogenic 14

  • p.Val289Met Multiple submitters congenital myasthenic syndrome 2C ⚠
  • p.Ala254fs Single submitter congenital myasthenic syndrome 2A
  • p.Arg216fs Single submitter
  • p.Asp368fs Single submitter congenital myasthenic syndrome 2A
  • p.Asp99fs Single submitter
  • p.Glu449_Glu451del Single submitter congenital myasthenic syndrome 2A
  • p.Ile203fs Single submitter congenital myasthenic syndrome 2A
  • p.Ile307fs Single submitter
  • p.Leu285Met Single submitter congenital myasthenic syndrome 2A
  • p.Leu358fs Single submitter congenital myasthenic syndrome 2A
  • p.Thr288fs Single submitter congenital myasthenic syndrome 2A
  • p.Trp90Ter Single submitter congenital myasthenic syndrome 2A
  • p.Val289Ala Single submitter congenital myasthenic syndrome 2A
  • c.821_1044del No assertion criteria congenital myasthenic syndrome 2C

Pathogenic/Likely pathogenic 3

  • p.Ala295fs Multiple submitters congenital myasthenic syndrome 2A
  • p.Arg243Cys Multiple submitters congenital myasthenic syndrome 2C
  • p.Glu275Ter Multiple submitters congenital myasthenic syndrome 2A

Likely pathogenic 16

  • c.1044+1G>A Single submitter CHRNB1-related disorder
  • c.353+1del Single submitter congenital myasthenic syndrome 2A
  • c.353+2T>C Single submitter
  • c.354-1G>A Single submitter congenital myasthenic syndrome 2A
  • c.610+1G>A Single submitter congenital myasthenic syndrome 2A
  • c.611-1G>C Single submitter congenital myasthenic syndrome 2A
  • c.757_820+135del Single submitter congenital myasthenic syndrome 2A
  • p.Ala15fs Single submitter
  • p.Gln182Ter Single submitter congenital myasthenic syndrome 2C
  • p.Gly230fs Single submitter congenital myasthenic syndrome 2A
  • p.Ile146fs Single submitter
  • p.Leu285Pro Single submitter congenital myasthenic syndrome 2A
  • p.Leu58fs Single submitter Autosomal recessive CHRNB1-related disorders
  • p.Ser135fs Single submitter
  • p.Thr479fs Single submitter congenital myasthenic syndrome 2C
  • p.Tyr357Ter Single submitter congenital myasthenic syndrome 2A

Conflicting classifications of pathogenicity 34

  • c.1044+9G>A Single submitter congenital myasthenic syndrome 4C
  • c.1218-9_1218-7del Single submitter congenital myasthenic syndrome 2A
  • c.198+15G>A Single submitter congenital myasthenic syndrome 4C
  • c.199-2A>C Single submitter congenital myasthenic syndrome 2A
  • c.58+1G>A Single submitter CHRNB1-related disorder
  • c.611-9C>G Single submitter congenital myasthenic syndrome 2A
  • c.*18C>T Single submitter congenital myasthenic syndrome 4C
  • p.Arg102Pro Single submitter congenital myasthenic syndrome 2A ⚠
  • p.Arg216Gln Single submitter Inborn genetic diseases ⚠
  • p.Arg242His Single submitter congenital myasthenic syndrome 2A ⚠
  • p.Arg335= Single submitter congenital myasthenic syndrome 2A
  • p.Asp188= Single submitter congenital myasthenic syndrome 2A
  • p.Cys376Arg Single submitter congenital myasthenic syndrome 2A ⚠
  • p.Gly189Arg Single submitter congenital myasthenic syndrome 2A ⚠
  • p.Gly191Glu Single submitter Inborn genetic diseases ⚠
  • p.His198Arg Single submitter congenital myasthenic syndrome 2A ⚠
  • p.Ile240= Single submitter congenital myasthenic syndrome 2A
  • p.Leu79Ser Single submitter congenital myasthenic syndrome 2A ⚠
  • p.Met1Val Single submitter congenital myasthenic syndrome 2A
  • p.Met465Thr Single submitter congenital myasthenic syndrome 4C ⚠
  • p.Phe475Ser Single submitter congenital myasthenic syndrome 2A ⚠
  • p.Pro343Thr Single submitter Inborn genetic diseases ⚠
  • p.Pro355Ser Single submitter congenital myasthenic syndrome 2A ⚠
  • p.Pro409Ala Single submitter congenital myasthenic syndrome 2A ⚠
  • p.Pro423Gln Single submitter congenital myasthenic syndrome 4C ⚠
  • p.Pro431fs Single submitter congenital myasthenic syndrome 2A
  • p.Ser177= Single submitter congenital myasthenic syndrome 2A
  • p.Ser441Gly Single submitter congenital myasthenic syndrome 2A ⚠
  • p.Thr301= Single submitter congenital myasthenic syndrome 2A
  • p.Trp83Ter Single submitter CHRNB1-related disorder
  • p.Tyr172Ter Single submitter congenital myasthenic syndrome 2A
  • p.Val114= Single submitter congenital myasthenic syndrome 2A
  • p.Val252Ile Single submitter Inborn genetic diseases ⚠
  • p.Val56Ala Single submitter congenital myasthenic syndrome 4C ⚠

Benign 46

Benign/Likely benign 12

  • c.1044+20C>T Multiple submitters congenital myasthenic syndrome 2A
  • c.1045-6C>G Multiple submitters congenital myasthenic syndrome 2A
  • c.1217+9A>G Multiple submitters congenital myasthenic syndrome 2A
  • c.1365+17T>C Multiple submitters congenital myasthenic syndrome 2A
  • c.243+14A>G Multiple submitters congenital myasthenic syndrome 4C
  • c.610+6T>C Multiple submitters congenital myasthenic syndrome 4C
  • c.611-9C>T Multiple submitters congenital myasthenic syndrome 2A
  • c.821-16C>G Multiple submitters congenital myasthenic syndrome 2A
  • c.821-20C>T Multiple submitters congenital myasthenic syndrome 2A
  • p.Glu32Gly Multiple submitters congenital myasthenic syndrome 4C
  • p.Gly28= Multiple submitters congenital myasthenic syndrome 2A
  • p.His453= Multiple submitters congenital myasthenic syndrome 2A

Likely benign 158

  • c.1218-46A>G Multiple submitters
  • c.243+218G>C Multiple submitters
  • c.243+220G>C Multiple submitters
  • c.243+226G>C Multiple submitters
  • c.243+259T>A Multiple submitters
  • c.820+56T>C Multiple submitters
  • c.-13G>C Multiple submitters congenital myasthenic syndrome 4C
  • p.Ala61= Multiple submitters congenital myasthenic syndrome 2A
  • p.Gly384= Multiple submitters congenital myasthenic syndrome 2A
  • p.Ile257= Multiple submitters congenital myasthenic syndrome 2A
  • p.Leu17= Multiple submitters congenital myasthenic syndrome 2A
  • p.Leu30= Multiple submitters congenital myasthenic syndrome 2A
  • p.Tyr492= Multiple submitters congenital myasthenic syndrome 2A
  • c.1044+12CTC[2] Single submitter congenital myasthenic syndrome 2A
  • c.1044+14C>T Single submitter congenital myasthenic syndrome 2A
  • c.1044+7_1044+10del Single submitter congenital myasthenic syndrome 2A
  • c.1045-10T>C Single submitter congenital myasthenic syndrome 2A
  • c.1045-11C>G Single submitter congenital myasthenic syndrome 2A
  • c.1045-16C>T Single submitter congenital myasthenic syndrome 2A
  • c.1045-19_1045-18insTAT Single submitter congenital myasthenic syndrome 2A
  • c.1045-19C>T Single submitter
  • c.1217+10C>T Single submitter congenital myasthenic syndrome 2A
  • c.1217+11G>A Single submitter congenital myasthenic syndrome 2A
  • c.1217+14C>T Single submitter
  • c.1218-10C>T Single submitter congenital myasthenic syndrome 2A
  • c.1218-15T>C Single submitter congenital myasthenic syndrome 2A
  • c.1218-7C>T Single submitter congenital myasthenic syndrome 2A
  • c.1218-9C>A Single submitter
  • c.1365+10A>G Single submitter congenital myasthenic syndrome 2A
  • c.1365+14G>C Single submitter
  • c.1365+16G>T Single submitter congenital myasthenic syndrome 2A
  • c.1365+18G>A Single submitter congenital myasthenic syndrome 2A
  • c.198+10C>G Single submitter congenital myasthenic syndrome 2A
  • c.198+14G>C Single submitter congenital myasthenic syndrome 2A
  • c.198+14G>T Single submitter congenital myasthenic syndrome 2A
  • c.198+15G>C Single submitter congenital myasthenic syndrome 2A
  • c.198+15G>T Single submitter congenital myasthenic syndrome 2A
  • c.198+17G>C Single submitter congenital myasthenic syndrome 2A
  • c.198+18G>T Single submitter congenital myasthenic syndrome 2A
  • c.198+7G>T Single submitter congenital myasthenic syndrome 2A
  • c.198+9G>T Single submitter congenital myasthenic syndrome 2A
  • c.199-13T>G Single submitter congenital myasthenic syndrome 2A
  • c.199-8C>G Single submitter congenital myasthenic syndrome 2A
  • c.199-9C>T Single submitter congenital myasthenic syndrome 2A
  • c.243+214_243+227del Single submitter
  • c.243+214_243+235del Single submitter
  • c.243+215TG[24] Single submitter
  • c.243+215TG[25] Single submitter
  • c.243+215TG[26] Single submitter
  • c.243+221_243+222insCTGT Single submitter
  • c.243+223_243+224insCTGT Single submitter
  • c.243+9A>C Single submitter congenital myasthenic syndrome 2A
  • c.244-104G>A Single submitter
  • c.244-14C>G Single submitter congenital myasthenic syndrome 2A
  • c.244-20C>T Single submitter congenital myasthenic syndrome 2A
  • c.353+12T>C Single submitter
  • c.354-10T>C Single submitter congenital myasthenic syndrome 2A
  • c.354-6C>G Single submitter congenital myasthenic syndrome 2A
  • c.354-8C>G Single submitter congenital myasthenic syndrome 2A
  • c.462+13del Single submitter congenital myasthenic syndrome 2A
  • c.462+20G>A Single submitter congenital myasthenic syndrome 2A
  • c.462+7G>A Single submitter congenital myasthenic syndrome 2A
  • c.463-17C>T Single submitter
  • c.58+11G>T Single submitter congenital myasthenic syndrome 2A
  • c.58+12C>A Single submitter congenital myasthenic syndrome 2A
  • c.58+15C>G Single submitter congenital myasthenic syndrome 2A
  • c.58+20G>A Single submitter congenital myasthenic syndrome 2A
  • c.59-14C>T Single submitter congenital myasthenic syndrome 2A
  • c.59-16T>C Single submitter congenital myasthenic syndrome 2A
  • c.59-7C>T Single submitter
  • c.610+13G>T Single submitter congenital myasthenic syndrome 2A
  • c.610+16T>C Single submitter congenital myasthenic syndrome 2A
  • c.611-15_611-13del Single submitter congenital myasthenic syndrome 2A
  • c.611-28G>T Single submitter
  • c.611-5C>T Single submitter congenital myasthenic syndrome 2A
  • c.611-6C>T Single submitter congenital myasthenic syndrome 2A
  • c.820+13G>C Single submitter congenital myasthenic syndrome 2A
  • c.820+16G>T Single submitter congenital myasthenic syndrome 2A
  • c.821-14C>T Single submitter congenital myasthenic syndrome 2A
  • c.821-4C>A Single submitter congenital myasthenic syndrome 2A
  • c.-1T>C Single submitter
  • p.Ala105= Single submitter congenital myasthenic syndrome 2A
  • p.Ala18= Single submitter congenital myasthenic syndrome 2A
  • p.Ala26= Single submitter congenital myasthenic syndrome 2A
  • p.Arg102= Single submitter congenital myasthenic syndrome 2A
  • p.Arg225= Single submitter congenital myasthenic syndrome 2A
  • p.Arg228= Single submitter congenital myasthenic syndrome 2A
  • p.Arg242= Single submitter congenital myasthenic syndrome 2A
  • p.Arg417= Single submitter congenital myasthenic syndrome 2A
  • p.Arg43= Single submitter congenital myasthenic syndrome 2A
  • p.Arg53Gly Single submitter Inborn genetic diseases
  • p.Asn251= Single submitter congenital myasthenic syndrome 2A
  • p.Asn331= Single submitter congenital myasthenic syndrome 2A
  • p.Asp112= Single submitter congenital myasthenic syndrome 2A
  • p.Asp124= Single submitter congenital myasthenic syndrome 2A
  • p.Asp136= Single submitter congenital myasthenic syndrome 2A
  • p.Asp388= Single submitter congenital myasthenic syndrome 2A
  • p.Asp454= Single submitter congenital myasthenic syndrome 2A
  • p.Asp489= Single submitter congenital myasthenic syndrome 2A
  • p.Gln408= Single submitter congenital myasthenic syndrome 2A
  • p.Glu204= Single submitter congenital myasthenic syndrome 2A
  • p.Glu229= Single submitter congenital myasthenic syndrome 2A
  • p.Glu372= Single submitter congenital myasthenic syndrome 2A
  • p.Gly145= Single submitter congenital myasthenic syndrome 2A
  • p.Gly222= Single submitter congenital myasthenic syndrome 2A
  • p.Gly227= Single submitter congenital myasthenic syndrome 2A
  • p.Gly278= Single submitter congenital myasthenic syndrome 2A
  • p.Ile129= Single submitter congenital myasthenic syndrome 2A
  • p.Ile236= Single submitter congenital myasthenic syndrome 2A
  • p.Ile241= Single submitter congenital myasthenic syndrome 2A
  • p.Ile324= Single submitter congenital myasthenic syndrome 2A
  • p.Ile443= Single submitter congenital myasthenic syndrome 2A
  • p.Ile64= Single submitter congenital myasthenic syndrome 2A
  • p.Leu101= Single submitter congenital myasthenic syndrome 2A
  • p.Leu110= Single submitter congenital myasthenic syndrome 2A
  • p.Leu249= Single submitter congenital myasthenic syndrome 2A
  • p.Leu262= Single submitter congenital myasthenic syndrome 2A
  • p.Leu284= Single submitter congenital myasthenic syndrome 2A
  • p.Leu293= Single submitter congenital myasthenic syndrome 2A
  • p.Leu303= Single submitter congenital myasthenic syndrome 2A
  • p.Leu354= Single submitter congenital myasthenic syndrome 2A
  • p.Leu356= Single submitter congenital myasthenic syndrome 2A
  • p.Leu358= Single submitter congenital myasthenic syndrome 2A
  • p.Leu416= Single submitter congenital myasthenic syndrome 2A
  • p.Leu429= Single submitter congenital myasthenic syndrome 2A
  • p.Leu470= Single submitter congenital myasthenic syndrome 2A
  • p.Leu58= Single submitter congenital myasthenic syndrome 2A
  • p.Leu63= Single submitter congenital myasthenic syndrome 2A
  • p.Leu7= Single submitter congenital myasthenic syndrome 2A
  • p.Lys310= Single submitter congenital myasthenic syndrome 2A
  • p.Phe160= Single submitter congenital myasthenic syndrome 2A
  • p.Phe265= Single submitter congenital myasthenic syndrome 2A
  • p.Phe419= Single submitter congenital myasthenic syndrome 2A
  • p.Pro143= Single submitter congenital myasthenic syndrome 2A
  • p.Pro144= Single submitter congenital myasthenic syndrome 2A
  • p.Pro159= Single submitter congenital myasthenic syndrome 2A
  • p.Pro221= Single submitter congenital myasthenic syndrome 2A
  • p.Pro224= Single submitter congenital myasthenic syndrome 2A
  • p.Pro3= Single submitter congenital myasthenic syndrome 2A
  • p.Pro379= Single submitter congenital myasthenic syndrome 2A
  • p.Pro44= Single submitter congenital myasthenic syndrome 2A
  • p.Pro499= Single submitter congenital myasthenic syndrome 2A
  • p.Ser100= Single submitter congenital myasthenic syndrome 2A
  • p.Ser107= Single submitter congenital myasthenic syndrome 2A
  • p.Ser171= Single submitter congenital myasthenic syndrome 2A
  • p.Ser176= Single submitter
  • p.Ser438= Single submitter congenital myasthenic syndrome 2A
  • p.Thr104= Single submitter congenital myasthenic syndrome 2A
  • p.Thr479= Single submitter congenital myasthenic syndrome 2A
  • p.Tyr147= Single submitter congenital myasthenic syndrome 2A
  • p.Tyr172= Single submitter congenital myasthenic syndrome 2A
  • p.Tyr238= Single submitter congenital myasthenic syndrome 2A
  • p.Val133= Single submitter congenital myasthenic syndrome 2A
  • p.Val179= Single submitter congenital myasthenic syndrome 2A
  • p.Val21= Single submitter
  • p.Val252= Single submitter congenital myasthenic syndrome 2A
  • p.Val327= Single submitter congenital myasthenic syndrome 2A
  • p.Val463= Single submitter congenital myasthenic syndrome 2A

Uncertain significance 305

Showing the top 300 by review status; the full set is in the sitemap.