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GeneBe

12-52567068-G-A

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The NM_175053.4(KRT74):​c.1491C>T​(p.Ser497=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00035 in 1,594,674 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00053 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00033 ( 0 hom. )

Consequence

KRT74
NM_175053.4 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -2.74
Variant links:
Genes affected
KRT74 (HGNC:28929): (keratin 74) Keratins are intermediate filament proteins responsible for the structural integrity of epithelial cells and are subdivided into epithelial keratins and hair keratins. This protein belongs to a family of keratins that are specifically expressed in the inner root sheath of hair follicles.[provided by RefSeq, Jun 2009]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.88).
BP6
Variant 12-52567068-G-A is Benign according to our data. Variant chr12-52567068-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 2047552.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-2.74 with no splicing effect.
BS2
High AC in GnomAd4 at 80 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
KRT74NM_175053.4 linkuse as main transcriptc.1491C>T p.Ser497= synonymous_variant 9/9 ENST00000305620.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
KRT74ENST00000305620.3 linkuse as main transcriptc.1491C>T p.Ser497= synonymous_variant 9/91 NM_175053.4 P1
KRT74ENST00000549343.5 linkuse as main transcriptc.1533C>T p.Ser511= synonymous_variant 10/105
KRT74ENST00000546384.1 linkuse as main transcriptn.478C>T non_coding_transcript_exon_variant 3/34

Frequencies

GnomAD3 genomes
AF:
0.000526
AC:
80
AN:
152110
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00118
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000579
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000382
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000206
AC:
50
AN:
243222
Hom.:
0
AF XY:
0.000160
AC XY:
21
AN XY:
131570
show subpopulations
Gnomad AFR exome
AF:
0.000865
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000328
Gnomad SAS exome
AF:
0.0000340
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000266
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000331
AC:
478
AN:
1442446
Hom.:
0
Cov.:
30
AF XY:
0.000297
AC XY:
212
AN XY:
714006
show subpopulations
Gnomad4 AFR exome
AF:
0.00142
Gnomad4 AMR exome
AF:
0.0000228
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000331
Gnomad4 SAS exome
AF:
0.0000354
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000358
Gnomad4 OTH exome
AF:
0.000337
GnomAD4 genome
AF:
0.000526
AC:
80
AN:
152228
Hom.:
0
Cov.:
32
AF XY:
0.000605
AC XY:
45
AN XY:
74408
show subpopulations
Gnomad4 AFR
AF:
0.00118
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000580
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000382
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000260
Hom.:
0
Bravo
AF:
0.000525
Asia WGS
AF:
0.000866
AC:
3
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

KRT74-related disorder Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesNov 18, 2019This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeMar 19, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.88
CADD
Benign
0.27
DANN
Benign
0.51

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: rs114682029; hg19: chr12-52960852; COSMIC: COSV59771250; API