21-30319726-A-C

Variant summary

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

The NM_203405.2(KRTAP26-1):ā€‹c.310T>Gā€‹(p.Ser104Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000322 in 1,614,072 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 (ā˜…).

Frequency

Genomes: š‘“ 0.00016 ( 0 hom., cov: 32)
Exomes š‘“: 0.000018 ( 0 hom. )

Consequence

KRTAP26-1
NM_203405.2 missense

Scores

1
1
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.69
Variant links:
Genes affected
KRTAP26-1 (HGNC:33760): (keratin associated protein 26-1) 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=0.16504753).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KRTAP26-1NM_203405.2 linkuse as main transcriptc.310T>G p.Ser104Ala missense_variant 1/1 ENST00000360542.5 NP_981950.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KRTAP26-1ENST00000360542.5 linkuse as main transcriptc.310T>G p.Ser104Ala missense_variant 1/1 NM_203405.2 ENSP00000353742 P1

Frequencies

GnomAD3 genomes
AF:
0.000164
AC:
25
AN:
152126
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000603
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:
0.0000558
AC:
14
AN:
250928
Hom.:
0
AF XY:
0.0000516
AC XY:
7
AN XY:
135576
show subpopulations
Gnomad AFR exome
AF:
0.000615
Gnomad AMR exome
AF:
0.000116
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:
0.0000185
AC:
27
AN:
1461828
Hom.:
0
Cov.:
32
AF XY:
0.0000179
AC XY:
13
AN XY:
727208
show subpopulations
Gnomad4 AFR exome
AF:
0.000358
Gnomad4 AMR exome
AF:
0.000112
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:
0.00
Gnomad4 OTH exome
AF:
0.000149
GnomAD4 genome
AF:
0.000164
AC:
25
AN:
152244
Hom.:
0
Cov.:
32
AF XY:
0.000188
AC XY:
14
AN XY:
74434
show subpopulations
Gnomad4 AFR
AF:
0.000601
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:
0.0000482
Hom.:
0
Bravo
AF:
0.000200
ESP6500AA
AF:
0.000681
AC:
3
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000741
AC:
9

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 GeneticsJan 23, 2023The c.310T>G (p.S104A) alteration is located in exon 1 (coding exon 1) of the KRTAP26-1 gene. This alteration results from a T to G substitution at nucleotide position 310, causing the serine (S) at amino acid position 104 to be replaced by an alanine (A). 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
0.13
BayesDel_addAF
Benign
-0.43
T
BayesDel_noAF
Benign
-0.45
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Benign
0.0076
T
Eigen
Benign
0.11
Eigen_PC
Benign
-0.030
FATHMM_MKL
Benign
0.53
D
LIST_S2
Benign
0.29
T
M_CAP
Benign
0.0080
T
MetaRNN
Benign
0.17
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Pathogenic
3.0
M
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.37
T
PROVEAN
Benign
-1.8
N
REVEL
Benign
0.10
Sift
Benign
0.035
D
Sift4G
Benign
0.073
T
Polyphen
0.98
D
Vest4
0.45
MVP
0.46
MPC
0.61
ClinPred
0.19
T
GERP RS
2.7
Varity_R
0.097
gMVP
0.087

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs151024846; hg19: chr21-31692044; API