dbSNP rs763921085: KRT38:p.Arg434Cys (chr17-41437483-G-A) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_006771.4(KRT38):c.1300C>T(p.Arg434Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000295 in 1,557,314 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R434H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000026 ( 0 hom. )

Consequence

KRT38
NM_006771.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.527

Publications

0 publications found

Variant links:

Genes affected

KRT38 (HGNC:6456): (keratin 38) The protein encoded by this gene is a member of the keratin gene family. As a type I hair keratin, it is an acidic protein which heterodimerizes with type II keratins to form hair and nails. The type I hair keratins are clustered in a region of chromosome 17q12-q21 and have the same direction of transcription. [provided by RefSeq, Jul 2008]

KRT38 links:

ENSG00000234859 (HGNC:):

ENSG00000234859 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

BP4

Computational evidence support a benign effect (MetaRNN=0.0485515).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006771.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KRT38	NM_006771.4	MANE Select	c.1300C>T	p.Arg434Cys	missense	Exon 7 of 7	NP_006762.3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
KRT38	ENST00000246646.4	TSL:1 MANE Select	c.1300C>T	p.Arg434Cys	missense	Exon 7 of 7	ENSP00000246646.3	O76015
ENSG00000234859	ENST00000731569.1		n.134-6441G>A		intron	N/A
ENSG00000234859	ENST00000731574.1		n.718-10351G>A		intron	N/A

Frequencies

GnomAD3 genomes

AF:

0.0000591

AC:

AN:

152244

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000392

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000161

AC:

AN:

186308

AF XY:

0.0000195

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000483

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000237

GnomAD4 exome

AF:

0.0000263

AC:

AN:

1405070

Hom.:

Cov.:

AF XY:

0.0000272

AC XY:

AN XY:

698486

show subpopulations

African (AFR)

AF:

0.0000345

AC:

AN:

29008

American (AMR)

AF:

0.000157

AC:

AN:

31870

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

23954

East Asian (EAS)

AF:

0.00

AC:

AN:

34828

South Asian (SAS)

AF:

0.0000127

AC:

AN:

78458

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52684

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4468

European-Non Finnish (NFE)

AF:

0.0000220

AC:

AN:

1091946

Other (OTH)

AF:

0.000104

AC:

AN:

57854

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.452

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.0000591

AC:

AN:

152244

Hom.:

Cov.:

AF XY:

0.0000672

AC XY:

AN XY:

74370

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41474

American (AMR)

AF:

0.000392

AC:

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68048

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.508

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.0000564

Hom.:

Bravo

AF:

0.000125

ExAC

AF:

0.0000165

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.10

BayesDel_noAF

Benign

-0.38

CADD

Benign

9.4

(source)

DANN

Benign

0.78

DEOGEN2

Benign

0.024

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.017

LIST_S2

Benign

0.061

M_CAP

Benign

0.014

MetaRNN

Benign

0.049

MetaSVM

Benign

-0.88

MutationAssessor

Benign

0.61

PhyloP100

0.53

PrimateAI

Benign

0.33

PROVEAN

Benign

-0.74

REVEL

Benign

0.17

Sift

Benign

0.097

Sift4G

Benign

0.10

Polyphen

0.0

Vest4

0.12

MutPred

0.26

Loss of helix (P = 0.0041)

MVP

0.35

MPC

0.049

ClinPred

0.029

GERP RS

0.20

Varity_R

0.065

gMVP

0.12

Mutation Taster

=98/2

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over