1-165210732-G-T

Variant names:

• chr1-165210732-G-T
• NM_177398.4:c.714C>A
• LMX1A p.Val238Val

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_177398.4(LMX1A):​c.714C>A​(p.Val238Val) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. V238V) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 33)
• Consequence: LMX1A NM_177398.4 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -3.82
• Publications: 0 publications found

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

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_177398.4. 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
	LMX1A	NM_177398.4	MANE Select	c.714C>A	p.Val238Val	synonymous	Exon 6 of 9	NP_796372.1	Q8TE12-1
	LMX1A	NM_001174069.2		c.714C>A	p.Val238Val	synonymous	Exon 6 of 9	NP_001167540.1	Q8TE12-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LMX1A	ENST00000342310.7	TSL:2 MANE Select	c.714C>A	p.Val238Val	synonymous	Exon 6 of 9	ENSP00000340226.3	Q8TE12-1
	LMX1A	ENST00000367893.4	TSL:1	c.714C>A	p.Val238Val	synonymous	Exon 5 of 8	ENSP00000356868.4	Q8TE12-1
	LMX1A	ENST00000489443.2	TSL:1	n.215C>A		non_coding_transcript_exon	Exon 3 of 7

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.72
CADD	Benign	0.50
DANN	Benign	0.71
PhyloP100		-3.8
Mutation Taster		=100/0	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.29		Details are displayed if max score is > 0.2
DS_DL_spliceai		0.29		Position offset: -33

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr1-165179969;