11-68684994-TCTGGTCGCCGGTAAGTGCGGGGCGCGTCTCCTCCGAGCGAAGGGGA-T

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PVS1_Strong

The NM_015973.5(GAL):c.73_81+37delTGGTCGCCGGTAAGTGCGGGGCGCGTCTCCTCCGAGCGAAGGGGAC(p.Trp25_Pro27del) variant causes a splice donor, conservative inframe deletion, splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000813 in 1,598,930 control chromosomes in the GnomAD database, with no homozygous occurrence. It is difficult to determine the true allele frequency of this variant because it is of type DEL_BIG, and the frequency of such variant types in population databases may be underestimated and unreliable. There is a variant allele frequency bias in the population database for this variant (GnomAdExome4), which may indicate mosaicism or somatic mutations in the reference population data. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000083 ( 0 hom. )

Consequence

GAL
NM_015973.5 splice_donor, conservative_inframe_deletion, splice_region, intron

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.32

Publications

0 publications found

Variant links:

Genes affected

GAL (HGNC:4114): (galanin and GMAP prepropeptide) This gene encodes a neuroendocrine peptide that is widely expressed in the central and peripheral nervous systems and also the gastrointestinal tract, pancreas, adrenal gland and urogenital tract. The encoded protein is a precursor that is proteolytically processed to generate two mature peptides: galanin and galanin message-associated peptide (GMAP). Galanin has diverse physiological functions including nociception, feeding and energy homeostasis, osmotic regulation and water balance. GMAP has been demonstrated to possess antifungal activity and hypothesized to be part of the innate immune system. [provided by RefSeq, Jul 2015]

GAL Gene-Disease associations (from GenCC):

familial temporal lobe epilepsy 8
Inheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

GAL links:

LOC107984343 (HGNC:):

LOC107984343 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PVS1

Splicing +-2 bp (donor or acceptor) variant, product NOT destroyed by NMD, known LOF gene, truncates exone, which is 0.21774194 fraction of the gene. No cryptic splice site detected. Exon removal is inframe change.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015973.5. 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
	GAL	NM_015973.5	MANE Select	c.73_81+37delTGGTCGCCGGTAAGTGCGGGGCGCGTCTCCTCCGAGCGAAGGGGAC	p.Trp25_Pro27del	splice_donor conservative_inframe_deletion splice_region intron	Exon 2 of 6	NP_057057.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
GAL	ENST00000265643.4	TSL:1 MANE Select	c.72_81+36delCTGGTCGCCGGTAAGTGCGGGGCGCGTCTCCTCCGAGCGAAGGGGA	p.Trp25AlafsTer33	frameshift splice_donor splice_region intron	Exon 2 of 6	ENSP00000265643.3	P22466
GAL	ENST00000933457.1		c.72_81+36delCTGGTCGCCGGTAAGTGCGGGGCGCGTCTCCTCCGAGCGAAGGGGA	p.Trp25AlafsTer37	frameshift splice_donor splice_region intron	Exon 2 of 7	ENSP00000603516.1
GAL	ENST00000933456.1		c.72_81+36delCTGGTCGCCGGTAAGTGCGGGGCGCGTCTCCTCCGAGCGAAGGGGA	p.Trp25AlafsTer33	frameshift splice_donor splice_region intron	Exon 2 of 6	ENSP00000603515.1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152166

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000829

AC:

AN:

1446764

Hom.:

AF XY:

0.00000556

AC XY:

AN XY:

718842

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33134

American (AMR)

AF:

0.00

AC:

AN:

43724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25734

East Asian (EAS)

AF:

0.00

AC:

AN:

39192

South Asian (SAS)

AF:

0.00

AC:

AN:

83900

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51318

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5670

European-Non Finnish (NFE)

AF:

0.00000996

AC:

AN:

1104342

Other (OTH)

AF:

0.0000167

AC:

AN:

59750

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000131191), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.396

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:

0.00000657

AC:

AN:

152166

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74328

show subpopulations

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

41430

American (AMR)

AF:

0.00

AC:

AN:

15286

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:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68022

Other (OTH)

AF:

0.00

AC:

AN:

2092

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000756

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

Familial temporal lobe epilepsy 8 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

PhyloP100

2.3

Splicing

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over