Genetic Variant LMX1A:p.Asp341Asn (chr1-165204008-C-T) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2

The NM_177398.4(LMX1A):c.1021G>A(p.Asp341Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000229 in 1,613,972 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. D341H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

LMX1A
NM_177398.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.37

Variant links:

Genes affected

LMX1A (HGNC:6653): (LIM homeobox transcription factor 1 alpha) This gene encodes a homeodomain and LIM-domain containing protein. The encoded protein is a transcription factor that acts as a positive regulator of insulin gene transcription. This gene also plays a role in the development of dopamine producing neurons during embryogenesis. Mutations in this gene are associated with an increased risk of developing Parkinson's disease. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Feb 2012]

LMX1A links:

LMX1A-AS2 (HGNC:40343): (LMX1A antisense RNA 2)

LMX1A-AS2 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.40001166).

BS2

High AC in GnomAdExome4 at 34 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LMX1A	NM_177398.4 link	c.1021G>A	p.Asp341Asn	missense_variant	Exon 9 of 9	ENST00000342310.7	NP_796372.1	Q8TE12-1
LMX1A	NM_001174069.2 link	c.1021G>A	p.Asp341Asn	missense_variant	Exon 9 of 9		NP_001167540.1	Q8TE12-1
LMX1A	XM_011509538.4 link	c.781G>A	p.Asp261Asn	missense_variant	Exon 7 of 7		XP_011507840.1
LMX1A-AS2	XR_922234.2 link	n.-39C>T		upstream_gene_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
LMX1A	ENST00000342310.7 link	c.1021G>A	p.Asp341Asn	missense_variant	Exon 9 of 9	2	NM_177398.4	ENSP00000340226.3	Q8TE12-1
LMX1A	ENST00000367893.4 link	c.1021G>A	p.Asp341Asn	missense_variant	Exon 8 of 8	1		ENSP00000356868.4	Q8TE12-1
LMX1A	ENST00000489443.2 link	n.655G>A		non_coding_transcript_exon_variant	Exon 7 of 7	1
LMX1A	ENST00000294816.6 link	c.1021G>A	p.Asp341Asn	missense_variant	Exon 9 of 9	2		ENSP00000294816.2	Q8TE12-1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152142

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000278

AC:

AN:

251434

Hom.:

AF XY:

0.0000294

AC XY:

AN XY:

135892

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000528

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000233

AC:

AN:

1461830

Hom.:

Cov.:

AF XY:

0.0000261

AC XY:

AN XY:

727216

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000270

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152142

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74300

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

ExAC

AF:

0.0000165

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.20

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Benign

-0.31

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.51

D;D;D

Eigen

Uncertain

0.50

Eigen_PC

Uncertain

0.54

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.88

.;.;D

M_CAP

Benign

0.068

MetaRNN

Benign

0.40

T;T;T

MetaSVM

Uncertain

-0.079

MutationAssessor

Uncertain

2.3

M;M;M

PrimateAI

Pathogenic

0.80

PROVEAN

Benign

-1.8

N;N;N

REVEL

Uncertain

0.37

Sift

Uncertain

0.023

D;D;D

Sift4G

Uncertain

0.023

D;D;D

Polyphen

0.97

D;D;D

Vest4

0.26

MutPred

0.35

Gain of catalytic residue at D341 (P = 0.0302);Gain of catalytic residue at D341 (P = 0.0302);Gain of catalytic residue at D341 (P = 0.0302);

MVP

0.85

MPC

0.43

ClinPred

0.81

GERP RS

4.9

Varity_R

0.15

gMVP

0.51

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

Details are displayed if max score is > 0.2

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

LitVar

Other links and lift over