NM_198698.1:c.140G>A

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_198698.1(KRTAP12-4):​c.140G>A​(p.Arg47Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000297 in 1,613,758 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

KRTAP12-4
NM_198698.1 missense

Scores

18

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -2.23

Publications

1 publications found
Variant links:
Genes affected
KRTAP12-4 (HGNC:20532): (keratin associated protein 12-4) Predicted to be located in cytosol. [provided by Alliance of Genome Resources, Apr 2022]
TSPEAR (HGNC:1268): (thrombospondin type laminin G domain and EAR repeats) This gene encodes a protein that contains a N-terminal thrombospondin-type laminin G domain and several tandem arranged epilepsy-associated repeats (EARs). A mutation in this gene is the cause of autosomal recessive deafness-98. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Dec 2012]
TSPEAR Gene-Disease associations (from GenCC):
  • ectodermal dysplasia 14, hair/tooth type with or without hypohidrosis
    Inheritance: AR Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • hearing loss, autosomal recessive
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • autosomal recessive nonsyndromic hearing loss 98
    Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • nonsyndromic genetic hearing loss
    Inheritance: AR Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.020162493).
BP6
Variant 21-44654475-C-T is Benign according to our data. Variant chr21-44654475-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 3289648.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_198698.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
KRTAP12-4
NM_198698.1
MANE Select
c.140G>Ap.Arg47Gln
missense
Exon 1 of 1NP_941971.1P60329
TSPEAR
NM_144991.3
MANE Select
c.82+56958G>A
intron
N/ANP_659428.2
TSPEAR
NM_001272037.2
c.-123+36070G>A
intron
N/ANP_001258966.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
KRTAP12-4
ENST00000391618.1
TSL:6 MANE Select
c.140G>Ap.Arg47Gln
missense
Exon 1 of 1ENSP00000375476.1P60329
TSPEAR
ENST00000323084.9
TSL:1 MANE Select
c.82+56958G>A
intron
N/AENSP00000321987.4Q8WU66-1
TSPEAR
ENST00000943283.1
c.82+56958G>A
intron
N/AENSP00000613342.1

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152132
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000323
AC:
8
AN:
247524
AF XY:
0.0000446
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:
0.0000714
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000287
AC:
42
AN:
1461626
Hom.:
0
Cov.:
35
AF XY:
0.0000371
AC XY:
27
AN XY:
727114
show subpopulations
African (AFR)
AF:
0.0000896
AC:
3
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44702
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26116
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39694
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86238
European-Finnish (FIN)
AF:
0.0000187
AC:
1
AN:
53382
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5748
European-Non Finnish (NFE)
AF:
0.0000342
AC:
38
AN:
1111888
Other (OTH)
AF:
0.00
AC:
0
AN:
60378
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.488
Heterozygous variant carriers
0
3
6
10
13
16
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000394
AC:
6
AN:
152132
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74294
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41430
American (AMR)
AF:
0.0000655
AC:
1
AN:
15274
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10606
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68014
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.542
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000659
Hom.:
0
Bravo
AF:
0.0000869
ExAC
AF:
0.0000248
AC:
3
EpiCase
AF:
0.000327
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions
Significance:Likely benign
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.069
BayesDel_addAF
Benign
-0.53
T
BayesDel_noAF
Benign
-0.82
CADD
Benign
0.0090
DANN
Benign
0.65
DEOGEN2
Benign
0.0064
T
Eigen
Benign
-2.2
Eigen_PC
Benign
-2.2
FATHMM_MKL
Benign
0.00029
N
LIST_S2
Benign
0.30
T
M_CAP
Benign
0.00046
T
MetaRNN
Benign
0.020
T
MetaSVM
Benign
-0.92
T
MutationAssessor
Benign
0.65
N
PhyloP100
-2.2
PrimateAI
Benign
0.18
T
PROVEAN
Benign
0.85
N
REVEL
Benign
0.0060
Sift
Benign
0.65
T
Sift4G
Benign
0.78
T
Polyphen
0.0
B
Vest4
0.031
MutPred
0.24
Gain of catalytic residue at R47 (P = 0.1278)
MVP
0.19
MPC
0.015
ClinPred
0.024
T
GERP RS
-8.1
PromoterAI
0.014
Neutral
Varity_R
0.016
gMVP
0.025
Mutation Taster
=98/2
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs782257584; hg19: chr21-46074392; COSMIC: COSV59971771; COSMIC: COSV59971771; API