9-126655530-G-T

Variant names:

• chr9-126655530-G-T
• rs12551234
• NM_001174147.2:c.327-35306G>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001174147.2(LMX1B):​c.327-35306G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000263 in 151,926 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: 𝑓 0.000026 (0 hom., cov: 31)
• Consequence: LMX1B NM_001174147.2 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.08
• Publications: 2 publications found

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 Gene-Disease associations (from GenCC):

• nail-patella syndrome

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, ClinGen, Labcorp Genetics (formerly Invitae)
• nail-patella-like renal disease

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

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

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.89).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001174147.2. 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
	LMX1B	NM_001174147.2	MANE Select	c.327-35306G>T		intron	N/A	NP_001167618.1	O60663-1
	LMX1B	NM_001174146.2		c.327-35306G>T		intron	N/A	NP_001167617.1	O60663-3
	LMX1B	NM_002316.4		c.327-35306G>T		intron	N/A	NP_002307.2	O60663-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LMX1B	ENST00000373474.9	TSL:1 MANE Select	c.327-35306G>T		intron	N/A	ENSP00000362573.3	O60663-1
	LMX1B	ENST00000355497.10	TSL:1	c.327-35306G>T		intron	N/A	ENSP00000347684.5	O60663-3
	LMX1B	ENST00000526117.6	TSL:1	c.327-35306G>T		intron	N/A	ENSP00000436930.1	O60663-2

Frequencies

GnomAD3 genomes AF: 0.0000263 AC: 4 AN: 151926 Hom.: 0 Cov.: 31

Gnomad AFR AF: 0.0000484

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: 0.0000294

Gnomad OTH AF: 0.00

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.0000263 AC: 4 AN: 151926 Hom.: 0 Cov.: 31 AF XY: 0.0000404 AC XY: 3 AN XY: 74196

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.0000484 AC: 2 AN: 41328

American (AMR) AF: 0.00 AC: 0 AN: 15264

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5202

South Asian (SAS) AF: 0.00 AC: 0 AN: 4824

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10554

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 314

European-Non Finnish (NFE) AF: 0.0000294 AC: 2 AN: 67968

Other (OTH) AF: 0.00 AC: 0 AN: 2092

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.0132501), which strongly suggests a high chance of mosaicism in these individuals.

Alfa AF: 0.00 Hom.: 704

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.89
CADD	Benign	0.92
DANN	Benign	0.14
PhyloP100		-1.1

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

Other links and lift over

dbSNP: rs12551234; hg19: chr9-129417809;