dbSNP rs768329653: KCNH3:p.His1058Pro (chr12-49557874-A-C) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_012284.3(KCNH3):c.3173A>C(p.His1058Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000509 in 1,571,514 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000028 ( 0 hom. )

Consequence

KCNH3
NM_012284.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.87

Publications

0 publications found

Variant links:

Genes affected

KCNH3 (HGNC:6252): (potassium voltage-gated channel subfamily H member 3) The protein encoded by this gene is a voltage-gated potassium channel alpha subunit predominantly expressed in the forebrain. Studies in mice have found that cognitive function increases when this gene is knocked out. In humans, the encoded protein has been shown to be capable of binding glycoprotein 120 of the human immunodeficiency virus type 1 (HIV-1) envelope. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2015]

KCNH3 links:

MCRS1 (HGNC:6960): (microspherule protein 1) Enables RNA binding activity and telomerase inhibitor activity. Involved in histone H4 acetylation; negative regulation of DNA metabolic process; and positive regulation of protein localization to nucleolus. Located in cytoplasm; nucleolus; and nucleoplasm. Part of Ino80 complex; MLL1 complex; and histone acetyltransferase complex. [provided by Alliance of Genome Resources, Apr 2022]

MCRS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.22387955).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_012284.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KCNH3	NM_012284.3	MANE Select	c.3173A>C	p.His1058Pro	missense	Exon 15 of 15	NP_036416.1	Q9ULD8
	KCNH3	NM_001314030.2		c.2993A>C	p.His998Pro	missense	Exon 15 of 15	NP_001300959.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
KCNH3	ENST00000257981.7	TSL:1 MANE Select	c.3173A>C	p.His1058Pro	missense	Exon 15 of 15	ENSP00000257981.5	Q9ULD8
KCNH3	ENST00000965158.1		c.2939A>C	p.His980Pro	missense	Exon 14 of 14	ENSP00000635217.1
MCRS1	ENST00000551598.5	TSL:5	c.429+969T>G		intron	N/A	ENSP00000448947.1	H0YIA0

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152210

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000456

AC:

AN:

219234

AF XY:

0.00000843

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000282

AC:

AN:

1419304

Hom.:

Cov.:

AF XY:

0.00000427

AC XY:

AN XY:

701828

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32052

American (AMR)

AF:

0.0000519

AC:

AN:

38536

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

23350

East Asian (EAS)

AF:

0.00

AC:

AN:

39180

South Asian (SAS)

AF:

0.0000246

AC:

AN:

81372

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51342

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5126

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1090062

Other (OTH)

AF:

0.00

AC:

AN:

58284

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.513

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152210

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74364

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41454

American (AMR)

AF:

0.000131

AC:

AN:

15284

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5194

South Asian (SAS)

AF:

0.000207

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68030

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.438

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000378

ExAC

AF:

0.00000825

AC:

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.069

BayesDel_addAF

Uncertain

0.11

BayesDel_noAF

Uncertain

0.040

CADD

Benign

(source)

DANN

Benign

0.96

DEOGEN2

Benign

0.097

Eigen

Benign

-0.11

Eigen_PC

Benign

0.059

FATHMM_MKL

Benign

0.73

LIST_S2

Benign

0.67

M_CAP

Uncertain

0.16

MetaRNN

Benign

0.22

MetaSVM

Uncertain

0.71

MutationAssessor

Benign

0.34

PhyloP100

1.9

PrimateAI

Uncertain

0.49

PROVEAN

Benign

-0.91

REVEL

Uncertain

0.54

Sift

Uncertain

0.014

Sift4G

Benign

0.20

Polyphen

0.44

Vest4

0.36

MutPred

0.44

Gain of catalytic residue at P1057 (P = 0.0112)

MVP

0.78

MPC

0.25

ClinPred

0.28

GERP RS

5.0

Varity_R

0.24

gMVP

0.50

Mutation Taster

=75/25

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over