Genetic Variant NM_005548.3:c.-1G>T (chr16-75647640-C-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_005548.3(KARS1):c.-1G>T variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000119 in 1,613,842 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000099 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00012 ( 1 hom. )

Consequence

KARS1
NM_005548.3 5_prime_UTR

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.913

Publications

0 publications found

Variant links:

Genes affected

KARS1 (HGNC:6215): (lysyl-tRNA synthetase 1) Aminoacyl-tRNA synthetases are a class of enzymes that charge tRNAs with their cognate amino acids. Lysyl-tRNA synthetase is a homodimer localized to the cytoplasm which belongs to the class II family of tRNA synthetases. It has been shown to be a target of autoantibodies in the human autoimmune diseases, polymyositis or dermatomyositis. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

KARS1 links:

TERF2IP (HGNC:19246): (TERF2 interacting protein) Enables G-rich strand telomeric DNA binding activity and phosphatase binding activity. Involved in several processes, including positive regulation of NIK/NF-kappaB signaling; regulation of nucleobase-containing compound metabolic process; and regulation of protein modification process. Located in chromosome, telomeric region; cytosol; and nuclear body. Part of shelterin complex. [provided by Alliance of Genome Resources, Apr 2022]

TERF2IP 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 (BayesDel_noAF=-0.65).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005548.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
KARS1	NM_005548.3	MANE Select	c.-1G>T	5_prime_UTR	Exon 1 of 14	NP_005539.1	Q15046-1
KARS1	NM_001130089.2		c.-97G>T	5_prime_UTR	Exon 1 of 15	NP_001123561.1	Q15046-2
KARS1	NM_001378148.1		c.-583G>T	5_prime_UTR	Exon 1 of 14	NP_001365077.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
KARS1	ENST00000302445.8	TSL:1 MANE Select	c.-1G>T	5_prime_UTR	Exon 1 of 14	ENSP00000303043.3	Q15046-1
KARS1	ENST00000319410.9	TSL:1	c.-97G>T	5_prime_UTR	Exon 1 of 15	ENSP00000325448.5	Q15046-2
KARS1	ENST00000566560.5	TSL:1	n.176+828G>T	intron	N/A

Frequencies

GnomAD3 genomes

AF:

0.0000985

AC:

AN:

152260

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000458

Gnomad ASJ

AF:

0.000864

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000249

AC:

AN:

249378

AF XY:

0.000237

show subpopulations

Gnomad AFR exome

AF:

0.0000628

Gnomad AMR exome

AF:

0.000842

Gnomad ASJ exome

AF:

0.00190

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000622

Gnomad OTH exome

AF:

0.000823

GnomAD4 exome

AF:

0.000121

AC:

177

AN:

1461582

Hom.:

Cov.:

AF XY:

0.000128

AC XY:

AN XY:

727112

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33468

American (AMR)

AF:

0.000872

AC:

AN:

44706

Ashkenazi Jewish (ASJ)

AF:

0.00191

AC:

AN:

26126

East Asian (EAS)

AF:

0.00

AC:

AN:

39692

South Asian (SAS)

AF:

0.00

AC:

AN:

86232

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53360

Middle Eastern (MID)

AF:

0.000520

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000468

AC:

AN:

1111880

Other (OTH)

AF:

0.000530

AC:

AN:

60350

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.460

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

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:

0.0000985

AC:

AN:

152260

Hom.:

Cov.:

AF XY:

0.0000941

AC XY:

AN XY:

74386

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41478

American (AMR)

AF:

0.000458

AC:

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.000864

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4836

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000441

AC:

AN:

68044

Other (OTH)

AF:

0.000478

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.505

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:

0.000263

Hom.:

Bravo

AF:

0.000140

EpiCase

AF:

0.000109

EpiControl

AF:

0.000178

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

BayesDel_noAF

Benign

-0.65

CADD

Benign

(source)

DANN

Benign

0.85

PhyloP100

0.91

PromoterAI

-0.12

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.1

Mutation Taster

=299/1

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