rs34637446

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP3BS1

The NM_001166355.2(LFNG):​c.155_166delGATGGATGGATG​(p.Gly52_Asp55del) variant causes a disruptive inframe deletion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000133 in 1,584,326 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000060 ( 0 hom., cov: 0)
Exomes 𝑓: 0.0000084 ( 0 hom. )

Consequence

LFNG
NM_001166355.2 disruptive_inframe_deletion

Scores

Not classified

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.46
Variant links:
Genes affected
LFNG (HGNC:6560): (LFNG O-fucosylpeptide 3-beta-N-acetylglucosaminyltransferase) This gene is a member of the glycosyltransferase 31 gene family. Members of this gene family, which also includes the MFNG (GeneID: 4242) and RFNG (GeneID: 5986) genes, encode evolutionarily conserved glycosyltransferases that act in the Notch signaling pathway to define boundaries during embryonic development. While their genomic structure is distinct from other glycosyltransferases, these proteins have a fucose-specific beta-1,3-N-acetylglucosaminyltransferase activity that leads to elongation of O-linked fucose residues on Notch, which alters Notch signaling. The protein encoded by this gene is predicted to be a single-pass type II Golgi membrane protein but it may also be secreted and proteolytically processed like the related proteins in mouse and Drosophila (PMID: 9187150). Mutations in this gene have been associated with autosomal recessive spondylocostal dysostosis 3. [provided by RefSeq, May 2018]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP3
Nonframeshift variant in repetitive region in NM_001166355.2
BS1
Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.0000595 (9/151232) while in subpopulation EAS AF= 0.000197 (1/5088). AF 95% confidence interval is 0.0000795. There are 0 homozygotes in gnomad4. There are 1 alleles in male gnomad4 subpopulation. Median coverage is 0. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
LFNGNM_001166355.2 linkc.155_166delGATGGATGGATG p.Gly52_Asp55del disruptive_inframe_deletion Exon 2 of 9 NP_001159827.1 Q8NES3-4

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
LFNGENST00000402506.5 linkc.155_166delGATGGATGGATG p.Gly52_Asp55del disruptive_inframe_deletion Exon 2 of 9 2 ENSP00000385764.1 Q8NES3-4

Frequencies

GnomAD3 genomes
AF:
0.0000596
AC:
9
AN:
151116
Hom.:
0
Cov.:
0
show subpopulations
Gnomad AFR
AF:
0.000171
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000196
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:
0.00000837
AC:
12
AN:
1433094
Hom.:
0
AF XY:
0.00000701
AC XY:
5
AN XY:
713272
show subpopulations
Gnomad4 AFR exome
AF:
0.000218
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:
0.00000459
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000595
AC:
9
AN:
151232
Hom.:
0
Cov.:
0
AF XY:
0.0000135
AC XY:
1
AN XY:
73834
show subpopulations
Gnomad4 AFR
AF:
0.000170
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000197
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs34637446; hg19: chr7-2552881; API