17-41487394-G-T

Variant names:

• chr17-41487394-G-T
• rs2301354
• NM_003771.5:c.944C>A
• KRT36 p.Thr315Lys

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_003771.5(KRT36):​c.944C>A​(p.Thr315Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,460,866 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000027 (0 hom.)
• Consequence: KRT36 NM_003771.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.646
• Publications: 0 publications found

Genes affected

KRT36 (HGNC:6454): (keratin 36) The protein encoded by this gene is a member of the keratin gene family. This type I hair keratin 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]

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.37089238).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003771.5. 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
	KRT36	NM_003771.5	MANE Select	c.944C>A	p.Thr315Lys	missense	Exon 5 of 7	NP_003762.1	O76013-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KRT36	ENST00000328119.11	TSL:2 MANE Select	c.944C>A	p.Thr315Lys	missense	Exon 5 of 7	ENSP00000329165.6	O76013-1
	KRT36	ENST00000393986.2	TSL:1	c.794C>A	p.Thr265Lys	missense	Exon 6 of 8	ENSP00000377555.2	O76013-2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000274 AC: 4 AN: 1460866 Hom.: 0 Cov.: 60 AF XY: 0.00000413 AC XY: 3 AN XY: 726706

African (AFR) AF: 0.00 AC: 0 AN: 33464

American (AMR) AF: 0.00 AC: 0 AN: 44604

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.00 AC: 0 AN: 39686

South Asian (SAS) AF: 0.0000464 AC: 4 AN: 86206

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53262

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5526

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111650

Other (OTH) AF: 0.00 AC: 0 AN: 60334

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.39
BayesDel_addAF	Uncertain	0.027	T
BayesDel_noAF	Benign	-0.20
CADD	Benign	13
DANN	Uncertain	0.98
DEOGEN2	Benign	0.29	T
Eigen	Benign	-0.29
Eigen_PC	Benign	-0.31
FATHMM_MKL	Benign	0.14	N
LIST_S2	Benign	0.47	T
M_CAP	Uncertain	0.087	D
MetaRNN	Benign	0.37	T
MetaSVM	Uncertain	0.52	D
MutationAssessor	Uncertain	2.7	M
PhyloP100		-0.65
PrimateAI	Benign	0.36	T
PROVEAN	Pathogenic	-4.7	D
REVEL	Uncertain	0.39
Sift	Uncertain	0.018	D
Sift4G	Uncertain	0.022	D
Varity_R		0.69
gMVP		0.53
Mutation Taster		=87/13	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.13		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

dbSNP: rs2301354;

hg19: chr17-39643646;