15-41669728-C-T

Variant names:

• chr15-41669728-C-T
• rs776502219
• NM_001400225.1:c.834C>T

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_001400225.1(MGA):​c.834C>T​(p.Asp278Asp) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,292 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.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: MGA NM_001400225.1 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.125
• Publications: 0 publications found

Genes affected

MGA (HGNC:14010): (MAX dimerization protein MGA) Predicted to enable DNA-binding transcription activator activity, RNA polymerase II-specific and RNA polymerase II cis-regulatory region sequence-specific DNA binding activity. Predicted to be involved in cell fate specification and positive regulation of transcription by RNA polymerase II. Predicted to act upstream of or within cellular response to leukemia inhibitory factor. Part of MLL1 complex. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.51).
• BP7: Synonymous conserved (PhyloP=-0.125 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001400225.1. 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
	MGA	NM_001400225.1	MANE Select	c.834C>T	p.Asp278Asp	synonymous	Exon 2 of 24	NP_001387154.1	A0A994J6L2
	MGA	NM_001164273.2		c.834C>T	p.Asp278Asp	synonymous	Exon 2 of 24	NP_001157745.1	Q8IWI9-4
	MGA	NM_001080541.3		c.834C>T	p.Asp278Asp	synonymous	Exon 2 of 23	NP_001074010.2	Q8IWI9-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MGA	ENST00000703841.1	MANE Select	c.834C>T	p.Asp278Asp	synonymous	Exon 2 of 24	ENSP00000515495.1	A0A994J6L2
	MGA	ENST00000566586.6	TSL:1	c.834C>T	p.Asp278Asp	synonymous	Exon 2 of 23	ENSP00000456141.1	Q8IWI9-3
	MGA	ENST00000916432.1		c.834C>T	p.Asp278Asp	synonymous	Exon 2 of 24	ENSP00000586491.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461292 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 726908

African (AFR) AF: 0.00 AC: 0 AN: 33474

American (AMR) AF: 0.00 AC: 0 AN: 44624

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26124

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

South Asian (SAS) AF: 0.00 AC: 0 AN: 86210

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53386

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

European-Non Finnish (NFE) AF: 9.00e-7 AC: 1 AN: 1111650

Other (OTH) AF: 0.00 AC: 0 AN: 60360

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.51
CADD	Benign	6.6
DANN	Benign	0.66
PhyloP100		-0.13

Splicing

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

Other links and lift over

dbSNP: rs776502219; hg19: chr15-41961926;