rs1555164245

Variant names:

• chr11-64805105-T-G
• rs1555164245
• NM_001370259.2:c.1279A>C

Variant summary

Our verdict is Pathogenic. The variant received 20 ACMG points: 20P and 0B. PS1_Very_Strong PM1 PM2 PM5 PP2 PP3_Strong PP5

The NM_001370259.2(MEN1):​c.1279A>C​(p.Ser427Arg) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Likely pathogenic in ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S427I) has been classified as Likely pathogenic.

• Frequency: Genomes: not found (cov: 33)
• Consequence: MEN1 NM_001370259.2 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1 U:1
• Conservation: PhyloP100: 6.92
• 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: Pathogenic. The variant received 20 ACMG points.

• PS1: Transcript NM_001370259.2 (MEN1) is affected with MISSENSE_VARIANT having same AA change as one Pathogenic present in ClinVar.
• PM1: In a hotspot region, there are 6 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 11 uncertain in NM_001370259.2
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr11-64805104-C-A is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 4082395.Status of the report is criteria_provided_single_submitter, 1 stars.
• 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.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.979
• PP5: Variant 11-64805105-T-G is Pathogenic according to our data. Variant chr11-64805105-T-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 457285.

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.1279A>C	p.Ser427Arg	missense	Exon 9 of 10	NP_001357188.2
	MEN1	NM_001407150.1		c.1420A>C	p.Ser474Arg	missense	Exon 10 of 11	NP_001394079.1
	MEN1	NM_001370251.2		c.1405A>C	p.Ser469Arg	missense	Exon 10 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.1279A>C	p.Ser427Arg	missense	Exon 9 of 10	ENSP00000394933.3
	MEN1	ENST00000312049.11	TSL:1	c.1279A>C	p.Ser427Arg	missense	Exon 9 of 10	ENSP00000308975.6
	MEN1	ENST00000424912.2	TSL:1	c.1279A>C	p.Ser427Arg	missense	Exon 10 of 11	ENSP00000388016.2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 55

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions as Germline

Significance: Conflicting classifications of pathogenicity

Revision: criteria provided, conflicting classifications

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	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.55	D
BayesDel_noAF	Pathogenic	0.55
CADD	Pathogenic	27
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.99	D
Eigen	Uncertain	0.63
Eigen_PC	Uncertain	0.56
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.97	D
M_CAP	Pathogenic	0.70	D
MetaRNN	Pathogenic	0.98	D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Uncertain	2.6	M
PhyloP100		6.9
PrimateAI	Uncertain	0.74	T
PROVEAN	Uncertain	-4.0	D
REVEL	Pathogenic	0.95
Sift	Uncertain	0.0010	D
Sift4G	Uncertain	0.0040	D
Polyphen		1.0	D
Vest4		0.75
MutPred		0.90		Loss of glycosylation at S432 (P = 0.0695)
MVP		0.99
MPC		2.3
ClinPred		1.0	D
GERP RS		4.0
Varity_R		0.82
gMVP		1.0
Mutation Taster		=0/100	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs1555164245; hg19: chr11-64572577;