Paralogue Annotation for KCNQ1 residue 379

Residue details

Gene: KCNQ1
Reference Sequences: LRG: LRG_287, Ensembl variant: ENST00000155840 / ENSP00000155840
Amino Acid Position: 379
Reference Amino Acid: W - Tryptophan
Protein Domain: C-terminus


Paralogue Variants mapped to KCNQ1 residue 379

ParalogueVariantAssociated DiseaseMapping QualityConsensusPubmed
KCNQ2W344REpilepsy, benign neonatalMedium2 24375629, 26073431

To assess whether the paralogue annotation here confidently predicts that variation at this residue is pathogenic, it is important to check the reports in the Pubmed links above to ascertain that the mutations in these paralogues have been proved likely to be disease-causing. It is also important to check that the direction of effect of the variant in the paralogue is compatible with your observed phenotype in KCNQ1.



KCNQ1ALKVQQKQRQKHFNRQIPA--AASLI-QTA>W<RCY---A-A-ENPD------S---------389
KCNQ2ALKVQEQHRQKHFEKRRNP--AAGLI-QSA>W<RFY---A-T-NLSRTD---LH---------357
KCNQ3ALKVQEQHRQKHFEKRRKP--AAELI-QAA>W<RYY---A-T-NPNRID---LV---------396
KCNQ4ALKVQEQHRQKHFEKRRMP--AANLI-QAA>W<RLY---S-T-DMSRAY---LT---------363
KCNQ5ALKVQEQHRQKHFEKRRNP--AANLI-QCV>W<RSY---A-A-DE-KSV---SI---------390
KCNA1NYFYHRETEGEEQAQLLH-----VS--SP->N<LAS---D-S---------------------439
KCNA10NYFYHRETENEEKQNIPGEIERI------->-<------------------------------483
KCNA2NYFYHRETEGEEQAQYLQ-----VT--SCP>K<IPS---S-P---------------------442
KCNA3NYFYHRETEGEEQSQYMH-----VG--SCQ>H<LSS-S-A-E---------------------513
KCNA4NYFYHRETENEEQTQLTQ-----NAV-SCP>Y<LPS-N-LLK---------------------595
KCNA5NYFYHRETDHEEPAVLKEE--QGTQS-QGP>G<LDR-G-V-Q-R-------------------554
KCNA6NYFYHRETEQEEQGQYTHV----------->-<-TC-G-------------------------483
KCNA7SYFYHRETEGEEAGMFSHV----------->-<-DM-Q-P-C---------------------421
KCNB1SEFYKEQKRQEKAIKRREA--LERA--KRN>G<---SIVS-M-N-------------------449
KCNB2SEFYKEQKRQEKAIKRREA--LERA--KRN>G<---SIVS-M-N-------------------453
KCNC1GMYYSLAMAKQKLPKKKKK--HIPR--PPQ>L<GSP---N-YCK---S-----V---------475
KCNC2GMYYSLAMAKQKLPRKRKK--HIPP--APQ>A<SSP---T-FCK---T-----E---------512
KCNC3GMYYSLAMAKQKLPKKKNK--HIPR--PPQ>P<GSP---N-YCK---PDPPPPPPPHPHHGSG592
KCNC4GMYYSLAMAKQKLPKKRKK--HVPR--PAQ>L<ESP---M-YCK---S-----E---------511
KCND1SRIYHQNQRADKRRAQQKV--RLARIRLAK>S<GTT---N---A-------------------445
KCND2SRIYHQNQRADKRRAQKKA--RLARIRAAK>S<GSA---N---A-------------------443
KCND3SRIYHQNQRADKRRAQKKA--RLARIRVAK>T<GSS---N---A-------------------440
KCNF1VRYYNKQRVLETAAKHELE--LMEL--N-->-<---SSSG-G-E-------------------439
KCNG1SRSYLELKQEQERVMFRRA--QFLI----K>-<TKSQLSV-----------------------494
KCNG2SRSYSELKEQQQRAASPEP--ALQE----D>-<STHSATA-----------------------439
KCNG3VQCYHELKFRSARYSR-------------->-<--SLSTE-----------------------433
KCNG4SHSYLELKKEQEQLQARLR--HLQN----T>-<GPASECE-LLD---P---------------492
KCNS1SHFYRRQKALEAAVRNSNH--QEFE--D-->-<---LLSS-I-D-------------------490
KCNS2SHFYRRQKQLESAMRSCDF--GDGM--K-->-<---EVPS-V-N-------------------443
KCNS3SKYYQKQKDIDVDQCSEDA--PEKC--H-->-<---ELPY-F-N-------------------439
KCNV1SACYFTLKLKEAAVRQREA--LKKL--TKN>I<ATDSYIS-V-N-------------------467
KCNV2SDYYSKLKAYEYTTIRRER--GEVN--F-->-<---MQRA-R-K-------------------526
cons                              > <                              

See full Alignment of Paralogues


Known Variants in KCNQ1

ProteinCDSDisease ClassificationDiseasedbSNP linksEffect Prediction
p.W379Gc.1135T>G Inherited ArrhythmiaLQTSSIFT: deleterious
Polyphen: probably damaging
ReportsInherited ArrhythmiaLQTS Spectrum and prevalence of mutations from the first 2,500 consecutive unrelated patients referred for the FAMILION long QT syndrome genetic test. Heart Rhythm. 2009 6(9):1297-303. 19716085
p.W379Rc.1135T>C Inherited ArrhythmiaLQTSSIFT: deleterious
Polyphen: probably damaging
ReportsOther Cardiac Phenotype Postmortem long QT syndrome genetic testing for sudden unexplained death in the young. J Am Coll Cardiol. 2007 49(2):240-6. 17222736
Inherited ArrhythmiaLQTS Cardiac channel molecular autopsy: insights from 173 consecutive cases of autopsy-negative sudden unexplained death referred for postmortem genetic testing. Mayo Clin Proc. 2012 87(6):524-39. doi: 10.1016/j.mayocp.2012.02.017. 22677073
Other Cardiac Phenotype High incidence of functional ion-channel abnormalities in a consecutive Long QT cohort with novel missense genetic variants of unknown significance. Sci Rep. 2015 5:10009. doi: 10.1038/srep10009. 26066609
p.W379Sc.1136G>C Inherited ArrhythmiaLQTSSIFT: deleterious
Polyphen: probably damaging
ReportsInherited ArrhythmiaLQTS The use of genotype-phenotype correlations in mutation analysis for the long QT syndrome. J Med Genet. 2003 40(2):141-5. 12566525