Genetic Variant KRTAP21-2:p.Tyr79Ser (chr21-30746967-T-G) – ACMG Classification: Benign (-8 pts)

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_181617.3(KRTAP21-2):c.236A>C(p.Tyr79Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000164 in 1,613,718 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00017 ( 2 hom. )

Consequence

KRTAP21-2
NM_181617.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.397

Publications

0 publications found

Variant links:

Genes affected

KRTAP21-2 (HGNC:18946): (keratin associated protein 21-2) Predicted to be located in cytosol. [provided by Alliance of Genome Resources, Apr 2022]

KRTAP21-2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.017139673).

BS2

High Homozygotes in GnomAdExome4 at 2 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_181617.3. 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
	KRTAP21-2	NM_181617.3	MANE Select	c.236A>C	p.Tyr79Ser	missense	Exon 1 of 1	NP_853648.1	Q3LI59

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KRTAP21-2	ENST00000333892.3	TSL:6 MANE Select	c.236A>C	p.Tyr79Ser	missense	Exon 1 of 1	ENSP00000334287.2	Q3LI59

Frequencies

GnomAD3 genomes

AF:

0.0000789

AC:

AN:

152106

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00124

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000882

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000209

AC:

AN:

248240

AF XY:

0.000290

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:

0.000126

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000173

AC:

253

AN:

1461494

Hom.:

Cov.:

AF XY:

0.000209

AC XY:

152

AN XY:

726994

show subpopulations

African (AFR)

AF:

0.0000597

AC:

AN:

33474

American (AMR)

AF:

0.0000447

AC:

AN:

44718

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26118

East Asian (EAS)

AF:

0.00

AC:

AN:

39682

South Asian (SAS)

AF:

0.00132

AC:

114

AN:

86252

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53390

Middle Eastern (MID)

AF:

0.00347

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.0000944

AC:

105

AN:

1111726

Other (OTH)

AF:

0.000166

AC:

AN:

60370

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.486

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:

0.0000788

AC:

AN:

152224

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74418

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41522

American (AMR)

AF:

0.00

AC:

AN:

15284

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5170

South Asian (SAS)

AF:

0.00124

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10614

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000882

AC:

AN:

68024

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.450

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:

0.0000670

Hom.:

Bravo

AF:

0.0000453

ExAC

AF:

0.000239

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000218

EpiControl

AF:

0.000296

ClinVar

ClinVar submissions

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

0.16

BayesDel_addAF

Benign

-0.40

BayesDel_noAF

Benign

-0.39

CADD

Benign

(source)

DANN

Benign

0.80

DEOGEN2

Benign

0.028

Eigen

Benign

-0.74

Eigen_PC

Benign

-0.83

FATHMM_MKL

Benign

0.040

LIST_S2

Benign

0.33

M_CAP

Benign

0.013

MetaRNN

Benign

0.017

MetaSVM

Benign

-1.0

PhyloP100

-0.40

PROVEAN

Pathogenic

-7.3

REVEL

Benign

0.031

Sift

Pathogenic

0.0

Sift4G

Benign

0.20

Polyphen

0.23

Vest4

0.24

MVP

0.061

MPC

0.35

ClinPred

0.094

GERP RS

-0.64

PromoterAI

-0.0084

Neutral

(source)

Varity_R

0.51

gMVP

0.13

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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