9-126614558-C-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 0P and 3B. BP4_ModerateBS1_Supporting

The NM_001174147.2(LMX1B):c.109C>T(p.Pro37Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000325 in 1,567,954 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000034 ( 0 hom. )

Consequence

LMX1B
NM_001174147.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.714

Variant links:

Genes affected

LMX1B (HGNC:6654): (LIM homeobox transcription factor 1 beta) This gene encodes a member of LIM-homeodomain family of proteins containing two N-terminal zinc-binding LIM domains, 1 homeodomain, and a C-terminal glutamine-rich domain. It functions as a transcription factor, and is essential for the normal development of dorsal limb structures, the glomerular basement membrane, the anterior segment of the eye, and dopaminergic and serotonergic neurons. Mutations in this gene are associated with nail-patella syndrome. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2010]

LMX1B links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.12307155).

BS1

Variant frequency is greater than expected in population nfe. gnomad4_exome allele frequency = 0.0000339 (48/1415844) while in subpopulation NFE AF= 0.000044 (48/1091104). AF 95% confidence interval is 0.0000341. There are 0 homozygotes in gnomad4_exome. There are 27 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
LMX1B	NM_001174147.2 linkuse as main transcript	c.109C>T	p.Pro37Ser	missense_variant	1/8	ENST00000373474.9
LMX1B	NM_001174146.2 linkuse as main transcript	c.109C>T	p.Pro37Ser	missense_variant	1/8
LMX1B	NM_002316.4 linkuse as main transcript	c.109C>T	p.Pro37Ser	missense_variant	1/8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
LMX1B	ENST00000373474.9 linkuse as main transcript	c.109C>T	p.Pro37Ser	missense_variant	1/8	1	NM_001174147.2	P4	O60663-1
LMX1B	ENST00000355497.10 linkuse as main transcript	c.109C>T	p.Pro37Ser	missense_variant	1/8	1			O60663-3
LMX1B	ENST00000526117.6 linkuse as main transcript	c.109C>T	p.Pro37Ser	missense_variant	1/8	1		A1	O60663-2

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152110

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000112

AC:

AN:

178330

Hom.:

AF XY:

0.0000207

AC XY:

AN XY:

96694

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:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000262

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000339

AC:

AN:

1415844

Hom.:

Cov.:

AF XY:

0.0000386

AC XY:

AN XY:

700312

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000440

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152110

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74292

show subpopulations

Gnomad4 AFR

AF:

0.0000482

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000857

Hom.:

Bravo

AF:

0.0000189

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Nov 27, 2023

This sequence change replaces proline, which is neutral and non-polar, with serine, which is neutral and polar, at codon 37 of the LMX1B protein (p.Pro37Ser). This variant is present in population databases (no rsID available, gnomAD 0.005%). This variant has not been reported in the literature in individuals affected with LMX1B-related conditions. ClinVar contains an entry for this variant (Variation ID: 2419247). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant¬†is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.067

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.45

Cadd

Benign

Dann

Uncertain

0.98

Eigen

Benign

-0.56

Eigen_PC

Benign

-0.38

FATHMM_MKL

Benign

0.33

LIST_S2

Benign

0.85

T;T;T;T

M_CAP

Pathogenic

0.40

MetaRNN

Benign

0.12

T;T;T;T

MetaSVM

Benign

-0.92

MutationAssessor

Benign

-0.90

N;N;N;.

MutationTaster

Benign

0.95

N;N;N;N;N

PrimateAI

Pathogenic

0.91

PROVEAN

Benign

-0.30

N;N;N;N

REVEL

Benign

0.19

Sift

Benign

0.60

T;T;T;T

Sift4G

Benign

0.80

T;T;T;T

Polyphen

0.0

.;.;.;B

Vest4

0.10

MVP

0.31

MPC

0.74

ClinPred

0.15

GERP RS

3.0

Varity_R

0.057

gMVP

0.42

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

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

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over