Genetic Variant MXRA7:p.Lys221Asn (chr17-76677669-C-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_001387276.1(MXRA7):c.663G>T(p.Lys221Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000452 in 1,613,992 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00030 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

MXRA7
NM_001387276.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.20

Publications

1 publications found

Variant links:

Genes affected

MXRA7 (HGNC:7541): (matrix remodeling associated 7) Located in endoplasmic reticulum. [provided by Alliance of Genome Resources, Apr 2022]

MXRA7 links:

SNHG16 (HGNC:44352): (small nucleolar RNA host gene 16)

SNHG16 links:

ENSG00000296346 (HGNC:):

ENSG00000296346 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.09797776).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001387276.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
MXRA7	NM_001387276.1	c.663G>T	p.Lys221Asn	missense	Exon 3 of 3	NP_001374205.1
MXRA7	NM_001008528.3	c.534G>T	p.Lys178Asn	missense	Exon 4 of 4	NP_001008528.1	P84157-1
MXRA7	NM_001387278.1	c.441G>T	p.Lys147Asn	missense	Exon 4 of 4	NP_001374207.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
MXRA7	ENST00000355797.7	TSL:2	c.534G>T	p.Lys178Asn	missense	Exon 4 of 4	ENSP00000348050.2	P84157-1
SNHG16	ENST00000738070.1		n.289C>A		splice_region non_coding_transcript_exon	Exon 4 of 4
SNHG16	ENST00000738069.1		n.289-36177C>A		intron	N/A

Frequencies

GnomAD3 genomes

AF:

0.000302

AC:

AN:

152178

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000917

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000393

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000637

AC:

AN:

251354

AF XY:

0.0000589

show subpopulations

Gnomad AFR exome

AF:

0.000800

Gnomad AMR exome

AF:

0.0000578

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000192

AC:

AN:

1461696

Hom.:

Cov.:

AF XY:

0.0000220

AC XY:

AN XY:

727154

show subpopulations

African (AFR)

AF:

0.000568

AC:

AN:

33480

American (AMR)

AF:

0.0000447

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53240

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111996

Other (OTH)

AF:

0.0000828

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.445

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000295

AC:

AN:

152296

Hom.:

Cov.:

AF XY:

0.000363

AC XY:

AN XY:

74474

show subpopulations

African (AFR)

AF:

0.000914

AC:

AN:

41560

American (AMR)

AF:

0.000392

AC:

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.000207

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10608

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68028

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.510

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000538

Hom.:

Bravo

AF:

0.000359

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000741

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.63

BayesDel_addAF

Benign

-0.46

BayesDel_noAF

Benign

-0.49

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.0087

Eigen

Uncertain

0.29

Eigen_PC

Uncertain

0.30

FATHMM_MKL

Uncertain

0.79

LIST_S2

Benign

0.80

M_CAP

Benign

0.029

MetaRNN

Benign

0.098

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.8

PhyloP100

1.2

PrimateAI

Uncertain

0.49

PROVEAN

Benign

-1.7

REVEL

Benign

0.082

Sift

Uncertain

0.0080

Sift4G

Uncertain

0.018

Polyphen

0.95

Vest4

0.22

MutPred

0.21

Loss of methylation at K178 (P = 0.0041)

MVP

0.20

MPC

0.41

ClinPred

0.12

GERP RS

3.2

Varity_R

0.20

Mutation Taster

=88/12

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

Details are displayed if max score is > 0.2

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over