1-74235479-C-A

Position:

• chr1-74235479-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_015978.3(TNNI3K):​c.28C>A​(p.Gln10Lys) variant causes a missense change. The variant allele was found at a frequency of 0.000000754 in 1,327,012 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 11/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 7.5e-7 (0 hom.)
• Consequence: TNNI3K NM_015978.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.17

Genes affected

TNNI3K (HGNC:19661): (TNNI3 interacting kinase) This gene encodes a protein that belongs to the MAP kinase kinase kinase (MAPKKK) family of protein kinases. The protein contains ankyrin repeat, protein kinase and serine-rich domains and is thought to play a role in cardiac physiology. [provided by RefSeq, Sep 2012]

FPGT-TNNI3K (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.3874005).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TNNI3K	NM_015978.3	c.28C>A	p.Gln10Lys	missense_variant	1/25	ENST00000326637.8
FPGT-TNNI3K	NM_001112808.3	c.344-623C>A		intron_variant
FPGT-TNNI3K	NM_001199327.2	c.344-623C>A		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TNNI3K	ENST00000326637.8	c.28C>A	p.Gln10Lys	missense_variant	1/25	1	NM_015978.3	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 7.54e-7 AC: 1 AN: 1327012 Hom.: 0 Cov.: 22 AF XY: 0.00 AC XY: 0 AN XY: 666088

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: 9.93e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 12, 2024

This sequence change replaces glutamine, which is neutral and polar, with lysine, which is basic and polar, at codon 10 of the TNNI3K protein (p.Gln10Lys). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with TNNI3K-related conditions. ClinVar contains an entry for this variant (Variation ID: 2056631). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.18
BayesDel_addAF	Uncertain	0.056	T
BayesDel_noAF	Benign	-0.16
CADD	Benign	21
DANN	Uncertain	0.98
DEOGEN2	Benign	0.033	T
Eigen	Uncertain	0.38
Eigen_PC	Uncertain	0.51
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.89	D
M_CAP	Benign	0.025	D
MetaRNN	Benign	0.39	T
MetaSVM	Benign	-0.58	T
MutationAssessor	Benign	1.7	L
MutationTaster	Benign	1.0	D;D;D
PROVEAN	Benign	-0.58	N
REVEL	Benign	0.25
Sift	Uncertain	0.018	D
Sift4G	Benign	0.11	T
Polyphen		0.61	P
Vest4		0.53
MutPred		0.27		Gain of methylation at Q10 (P = 0.0065);
MVP		0.73
ClinPred		0.55	D
GERP RS		5.9
Varity_R		0.24
gMVP		0.60

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr1-74701163;