chr11-64806340-C-A

Variant names:

• chr11-64806340-C-A
• rs771645621
• NM_001370259.2:c.941G>T

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 5P and 1B. PM1 PM2 PP2 BP4

The NM_001370259.2(MEN1):​c.941G>T​(p.Arg314Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R314Q) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 33)
• Consequence: MEN1 NM_001370259.2 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 2.05
• Publications: 0 publications found

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]

MEN1 Gene-Disease associations (from GenCC):

• multiple endocrine neoplasia type 1

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), G2P, ClinGen, Orphanet, Ambry Genetics
• familial isolated hyperparathyroidism

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• pituitary gigantism

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• hereditary pheochromocytoma-paraganglioma

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

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

• PM1: In a hotspot region, there are 7 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 2 benign, 29 uncertain in NM_001370259.2
• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in the MEN1 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 113 curated pathogenic missense variants (we use a threshold of 10). The gene has 20 curated benign missense variants. Trascript score misZ: 4.1921 (above the threshold of 3.09). GenCC associations: The gene is linked to multiple endocrine neoplasia type 1, hereditary pheochromocytoma-paraganglioma, pituitary gigantism, familial isolated hyperparathyroidism.
• BP4: Computational evidence support a benign effect (MetaRNN=0.37573478).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001370259.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MEN1	NM_001370259.2	MANE Select	c.941G>T	p.Arg314Leu	missense	Exon 7 of 10	NP_001357188.2
	MEN1	NM_001407150.1		c.956G>T	p.Arg319Leu	missense	Exon 7 of 11	NP_001394079.1
	MEN1	NM_001370251.2		c.941G>T	p.Arg314Leu	missense	Exon 7 of 11	NP_001357180.2

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MEN1	ENST00000450708.7	TSL:5 MANE Select	c.941G>T	p.Arg314Leu	missense	Exon 7 of 10	ENSP00000394933.3
	MEN1	ENST00000312049.11	TSL:1	c.941G>T	p.Arg314Leu	missense	Exon 7 of 10	ENSP00000308975.6
	MEN1	ENST00000424912.2	TSL:1	c.941G>T	p.Arg314Leu	missense	Exon 8 of 11	ENSP00000388016.2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	1	-	Hereditary cancer-predisposing syndrome (1)
-	1	-	Multiple endocrine neoplasia, type 1 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.34
BayesDel_addAF	Pathogenic	0.18	D
BayesDel_noAF	Uncertain	0.020
CADD	Benign	21
DANN	Uncertain	0.98
DEOGEN2	Pathogenic	0.82	D
Eigen	Benign	-0.58
Eigen_PC	Benign	-0.47
FATHMM_MKL	Uncertain	0.84	D
LIST_S2	Uncertain	0.96	D
M_CAP	Uncertain	0.28	D
MetaRNN	Benign	0.38	T
MetaSVM	Uncertain	0.77	D
MutationAssessor	Benign	1.4	L
PhyloP100		2.0
PrimateAI	Benign	0.36	T
PROVEAN	Uncertain	-2.8	D
REVEL	Uncertain	0.50
Sift	Benign	0.22	T
Sift4G	Benign	0.29	T
Polyphen		0.0060	B
Vest4		0.43
MutPred		0.38		Gain of ubiquitination at K315 (P = 0.0797)
MVP		0.93
MPC		1.3
ClinPred		0.37	T
GERP RS		2.0
Varity_R		0.38
gMVP		0.79
Mutation Taster		=33/67	disease causing

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

Other links and lift over

dbSNP: rs771645621; hg19: chr11-64573812;