11-95979859-C-A

Variant names:

• chr11-95979859-C-A
• rs374991058
• NM_032427.4:c.2560G>T

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_032427.4(MAML2):​c.2560G>T​(p.Gly854Trp) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,656 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G854R) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: MAML2 NM_032427.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.89
• Publications: 0 publications found

Genes affected

MAML2 (HGNC:16259): (mastermind like transcriptional coactivator 2) The protein encoded by this gene is a member of the Mastermind-like family of proteins. All family members are proline and glutamine-rich, and contain a conserved basic domain that binds the ankyrin repeat domain of the intracellular domain of the Notch receptors (ICN1-4) in their N-terminus, and a transcriptional activation domain in their C-terminus. This protein binds to an extended groove that is formed by the interaction of CBF1, Suppressor of Hairless, LAG-1 (CSL) with ICN, and positively regulates Notch signaling. High levels of expression of this gene have been observed in several B cell-derived lymphomas. Translocations resulting in fusion proteins with both CRTC1 and CRTC3 have been implicated in the development of mucoepidermoid carcinomas, while a translocation event with CXCR4 has been linked with chronic lymphocytic leukemia (CLL). Copy number variation in the polyglutamine tract has been observed. [provided by RefSeq, Jan 2015]

MAML2 Gene-Disease associations (from GenCC):

• congenital heart disease

  Inheritance: Unknown Classification: NO_KNOWN Submitted by: ClinGen

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.3339147).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_032427.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MAML2	NM_032427.4	MANE Select	c.2560G>T	p.Gly854Trp	missense	Exon 5 of 5	NP_115803.1	Q8IZL2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MAML2	ENST00000524717.6	TSL:1 MANE Select	c.2560G>T	p.Gly854Trp	missense	Exon 5 of 5	ENSP00000434552.1	Q8IZL2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461656 Hom.: 0 Cov.: 33 AF XY: 0.00000138 AC XY: 1 AN XY: 727106

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.00 AC: 0 AN: 44718

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39696

South Asian (SAS) AF: 0.00 AC: 0 AN: 86254

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53398

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111838

Other (OTH) AF: 0.00 AC: 0 AN: 60370

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.65
BayesDel_addAF	Uncertain	0.096	D
BayesDel_noAF	Benign	-0.10
CADD	Pathogenic	27
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.50	D
Eigen	Uncertain	0.31
Eigen_PC	Uncertain	0.22
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Uncertain	0.87	D
M_CAP	Benign	0.049	D
MetaRNN	Benign	0.33	T
MetaSVM	Benign	-0.39	T
MutationAssessor	Benign	1.0	L
PhyloP100		3.9
PrimateAI	Uncertain	0.55	T
PROVEAN	Pathogenic	-4.7	D
REVEL	Benign	0.23
Sift	Uncertain	0.011	D
Sift4G	Uncertain	0.039	D
Polyphen		1.0	D
Vest4		0.67
MutPred		0.32		Gain of catalytic residue at M857 (P = 0.0072)
MVP		0.16
MPC		0.071
ClinPred		0.97	D
GERP RS		5.2
Varity_R		0.46
gMVP		0.61
Mutation Taster		=92/8	polymorphism

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: rs374991058; hg19: chr11-95713023;