5-38475553-T-TTAA

Position:

• chr5-38475553-T-TTAA

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001127671.2(LIFR):​c.*6041_*6042insTTA variant causes a 3 prime UTR change. The variant allele was found at a frequency of 0.000111 in 189,952 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.00011 (0 hom., cov: 33)
  • Exomes 𝑓: 0.00013 (0 hom.)
• Consequence: LIFR NM_001127671.2 3_prime_UTR
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.64

Genes affected

LIFR (HGNC:6597): (LIF receptor subunit alpha) This gene encodes a protein that belongs to the type I cytokine receptor family. This protein combines with a high-affinity converter subunit, gp130, to form a receptor complex that mediates the action of the leukemia inhibitory factor, a polyfunctional cytokine that is involved in cellular differentiation, proliferation and survival in the adult and the embryo. Mutations in this gene cause Schwartz-Jampel syndrome type 2, a disease belonging to the group of the bent-bone dysplasias. A translocation that involves the promoter of this gene, t(5;8)(p13;q12) with the pleiomorphic adenoma gene 1, is associated with salivary gland pleiomorphic adenoma, a common type of benign epithelial tumor of the salivary gland. Multiple splice variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Jun 2018]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
LIFR	NM_001127671.2	c.*6041_*6042insTTA		3_prime_UTR_variant	20/20	ENST00000453190.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
LIFR	ENST00000453190.7	c.*6041_*6042insTTA		3_prime_UTR_variant	20/20	2	NM_001127671.2	P1
LIFR	ENST00000263409.8	c.*6041_*6042insTTA		3_prime_UTR_variant	20/20	1		P1

Frequencies

GnomAD3 genomes AF: 0.000105 AC: 16 AN: 152106 Hom.: 0 Cov.: 33

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: 0.00248

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000589

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 0.000133 AC: 5 AN: 37728 Hom.: 0 Cov.: 0 AF XY: 0.0000570 AC XY: 1 AN XY: 17550

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: 0.00862

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000898

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome AF: 0.000105 AC: 16 AN: 152224 Hom.: 0 Cov.: 33 AF XY: 0.000148 AC XY: 11 AN XY: 74432

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00249

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000589

Gnomad4 OTH AF: 0.00

Bravo AF: 0.0000378

Asia WGS AF: 0.000868 AC: 3 AN: 3472

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Stuve-Wiedemann syndrome Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jun 14, 2016

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Computational scores

Source: dbNSFP v4.3

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs542021288; hg19: chr5-38475655;