rs748005956

chr11-64807683-TA-T

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BS1 BS2

The NM_001370259.2(MEN1):c.655-4del variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000805 in 1,614,104 control chromosomes in the GnomAD database, with no homozygous occurrence. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

• Frequency:
  • Genomes: 𝑓 0.000099 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000079 (0 hom.)
• Consequence: MEN1 NM_001370259.2 splice_region, splice_polypyrimidine_tract, intron
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2 B:5
• Conservation: PhyloP100: 0.346

Genes affected

MEN1 (HGNC:7010): (menin 1) This gene encodes menin, a tumor suppressor associated with a syndrome known as multiple endocrine neoplasia type 1. Menin is a scaffold protein that functions in histone modification and epigenetic gene regulation. It is thought to regulate several pathways and processes by altering chromatin structure through the modification of histones. [provided by RefSeq, May 2019]

ACMG classification

Verdict is Benign. Variant got -8 ACMG points.

• BS1: Variant frequency is greater than expected in population sas. gnomad4_exome allele frequency = 0.0000787 (115/1461820) while in subpopulation SAS AF= 0.000812 (70/86258). AF 95% confidence interval is 0.000658. There are 0 homozygotes in gnomad4_exome. There are 82 alleles in male gnomad4_exome subpopulation. Median coverage is 33. This position pass quality control queck.
• BS2: High AC in GnomAd at 14 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MEN1	NM_001370259.2	c.655-4del		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		ENST00000450708.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MEN1	ENST00000450708.7	c.655-4del		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		5	NM_001370259.2	P3

Frequencies

GnomAD3 genomes AF: 0.0000920 AC: 14 AN: 152166 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000241

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000459

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000414

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000441

Gnomad OTH AF: 0.000478

GnomAD3 exomes AF: 0.000143 AC: 36 AN: 250948 Hom.: 0 AF XY: 0.000214 AC XY: 29 AN XY: 135670

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.000231

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000544

Gnomad SAS exome AF: 0.000784

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000265

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000787 AC: 115 AN: 1461820 Hom.: 0 Cov.: 33 AF XY: 0.000113 AC XY: 82 AN XY: 727208

Gnomad4 AFR exome AF: 0.0000299

Gnomad4 AMR exome AF: 0.000224

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000252

Gnomad4 SAS exome AF: 0.000812

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000252

Gnomad4 OTH exome AF: 0.0000662

GnomAD4 genome AF: 0.0000985 AC: 15 AN: 152284 Hom.: 0 Cov.: 32 AF XY: 0.000161 AC XY: 12 AN XY: 74460

Gnomad4 AFR AF: 0.0000241

Gnomad4 AMR AF: 0.000458

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000621

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000441

Gnomad4 OTH AF: 0.000473

Alfa AF: 0.0000712 Hom.: 0

Bravo AF: 0.0000604

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2 Benign:5

Revision: criteria provided, conflicting classifications

Submissions by phenotype

Multiple endocrine neoplasia, type 1 Uncertain:1 Benign:2

Likely benign, criteria provided, single submitter	clinical testing	Counsyl	Mar 01, 2018	- -
Benign, criteria provided, single submitter	clinical testing	Invitae	Jan 31, 2024	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Myriad Genetics, Inc.	Apr 17, 2023	This variant is classified as a variant of uncertain significance as there is insufficient evidence to determine its impact on protein function and/or cancer risk. -

Hereditary cancer-predisposing syndrome Benign:2

Likely benign, criteria provided, single submitter	clinical testing	Ambry Genetics	Oct 15, 2019	This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Benign, criteria provided, single submitter	curation	Sema4, Sema4	Dec 07, 2021	- -

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Mar 29, 2016

Variant identified in a genome or exome case(s) and assessed due to predicted null impact of the variant or pathogenic assertions in the literature or databases. Disclaimer: This variant has not undergone full assessment. The following are preliminary notes: Intronic 1bp del unlikely to impact splicing; ExAC: 0.1% (13/16474) South Asian chromosomes -

not provided Benign:1

Likely benign, criteria provided, single submitter

clinical testing

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Nov 14, 2023

- -

Computational scores

Source: dbNSFP v4.3

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.060		Details are displayed if max score is > 0.2

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

Publications

LitVar

Other links and lift over

dbSNP: rs748005956; hg19: chr11-64575155;