Genetic Variant KRTAP5-2:p.Gly86Trp (chr11-1597995-C-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_001004325.2(KRTAP5-2):c.256G>T(p.Gly86Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0 ( 0 hom., cov: 13)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

KRTAP5-2
NM_001004325.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.336

Variant links:

Genes affected

KRTAP5-2 (HGNC:23597): (keratin associated protein 5-2) Predicted to be located in cytosol. [provided by Alliance of Genome Resources, Apr 2022]

KRTAP5-2 links:

KRTAP5-AS1 (HGNC:27877): (KRTAP5-1/KRTAP5-2 antisense RNA 1)

KRTAP5-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.21662635).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KRTAP5-2	NM_001004325.2 link	c.256G>T	p.Gly86Trp	missense_variant	Exon 1 of 1	ENST00000412090.2	NP_001004325.1	Q701N4
KRTAP5-AS1	NR_021489.2 link	n.1076C>A		non_coding_transcript_exon_variant	Exon 2 of 2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
KRTAP5-2	ENST00000412090.2 link	c.256G>T	p.Gly86Trp	missense_variant	Exon 1 of 1	6	NM_001004325.2	ENSP00000400041.1	Q701N4
KRTAP5-AS1	ENST00000424148.1 link	n.1076C>A		non_coding_transcript_exon_variant	Exon 2 of 2	2
KRTAP5-AS1	ENST00000659213.1 link	n.*87C>A		downstream_gene_variant

Frequencies

GnomAD3 genomes

AF:

0.00

AC:

AN:

66388

Hom.:

Cov.:

FAILED QC

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:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000933

AC:

AN:

214312

Hom.:

AF XY:

0.00

AC XY:

AN XY:

117616

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000202

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.00000340

AC:

AN:

1176706

Hom.:

Cov.:

AF XY:

0.00000171

AC XY:

AN XY:

583902

show subpopulations

Gnomad4 AFR exome

AF:

0.00

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:

0.00000436

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

66510

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

32182

Gnomad4 AFR

AF:

0.00

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:

0.0000312

Hom.:

ExAC

AF:

0.00000828

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 03, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.256G>T (p.G86W) alteration is located in exon 1 (coding exon 1) of the KRTAP5-2 gene. This alteration results from a G to T substitution at nucleotide position 256, causing the glycine (G) at amino acid position 86 to be replaced by a tryptophan (W). 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

0.30

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.50

CADD

Benign

DANN

Benign

0.77

DEOGEN2

Benign

0.091

Eigen

Benign

-0.028

Eigen_PC

Benign

-0.28

FATHMM_MKL

Benign

0.012

M_CAP

Benign

0.0091

MetaRNN

Benign

0.22

MetaSVM

Benign

-1.1

MutationAssessor

Pathogenic

3.6

PROVEAN

Benign

-1.3

REVEL

Benign

0.087

Sift4G

Uncertain

0.0050

Polyphen

1.0

Vest4

0.39

MutPred

0.32

Loss of phosphorylation at S84 (P = 0.1218);

MVP

0.076

MPC

0.10

ClinPred

0.37

GERP RS

2.9

Varity_R

0.24

gMVP

0.058

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

LitVar

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

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over