21-30337490-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001077711.1(KRTAP27-1):​c.179G>A​(p.Cys60Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000062 in 1,614,076 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

KRTAP27-1
NM_001077711.1 missense

Scores

1
3
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0740
Variant links:
Genes affected
KRTAP27-1 (HGNC:33864): (keratin associated protein 27-1) Predicted to be located in cytosol. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.1230616).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KRTAP27-1NM_001077711.1 linkuse as main transcriptc.179G>A p.Cys60Tyr missense_variant 1/1 ENST00000382835.2 NP_001071179.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KRTAP27-1ENST00000382835.2 linkuse as main transcriptc.179G>A p.Cys60Tyr missense_variant 1/1 NM_001077711.1 ENSP00000372286 P1

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152188
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000145
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000119
AC:
3
AN:
251316
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135830
show subpopulations
Gnomad AFR exome
AF:
0.000185
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS 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:
0.00000274
AC:
4
AN:
1461888
Hom.:
0
Cov.:
33
AF XY:
0.00000138
AC XY:
1
AN XY:
727246
show subpopulations
Gnomad4 AFR exome
AF:
0.0000896
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152188
Hom.:
0
Cov.:
32
AF XY:
0.0000538
AC XY:
4
AN XY:
74336
show subpopulations
Gnomad4 AFR
AF:
0.000145
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000329
Hom.:
0
Bravo
AF:
0.0000491
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsAug 17, 2022The c.179G>A (p.C60Y) alteration is located in exon 1 (coding exon 1) of the KRTAP27-1 gene. This alteration results from a G to A substitution at nucleotide position 179, causing the cysteine (C) at amino acid position 60 to be replaced by a tyrosine (Y). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.41
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
14
DANN
Benign
0.97
DEOGEN2
Benign
0.016
T
Eigen
Benign
-0.65
Eigen_PC
Benign
-0.73
FATHMM_MKL
Benign
0.020
N
LIST_S2
Benign
0.32
T
M_CAP
Benign
0.0051
T
MetaRNN
Benign
0.12
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.6
M
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.33
T
PROVEAN
Pathogenic
-9.1
D
REVEL
Benign
0.075
Sift
Uncertain
0.013
D
Sift4G
Uncertain
0.0050
D
Polyphen
0.069
B
Vest4
0.21
MutPred
0.58
Gain of glycosylation at T58 (P = 0.0925);
MVP
0.19
MPC
0.030
ClinPred
0.60
D
GERP RS
2.5
Varity_R
0.34
gMVP
0.15

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs749901631; hg19: chr21-31709808; API