Variant chr1-180230530-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PVS1_SupportingPM2

The NM_033343.4(LHX4):c.1A>G(p.Met1?) variant causes a start lost change. The variant allele was found at a frequency of 0.00000657 in 152,182 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Consequence

LHX4
NM_033343.4 start_lost

Scores

Clinical Significance

Uncertain significance no assertion criteria provided U:1

Conservation

PhyloP100: 6.02

Variant links:

Genes affected

LHX4 (HGNC:21734): (LIM homeobox 4) This gene encodes a member of a large protein family which contains the LIM domain, a unique cysteine-rich zinc-binding domain. The encoded protein is a transcription factor involved in the control of differentiation and development of the pituitary gland. Mutations in this gene cause combined pituitary hormone deficiency 4. [provided by RefSeq, Dec 2010]

LHX4 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PVS1

Start lost variant, no pathogenic variants between lost start and next in-frame start position. Next in-frame start position is after 3 CDS bases. Genomic position: 180230532. Lost 0.003 part of the original CDS.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LHX4	NM_033343.4 link	c.1A>G	p.Met1?	start_lost	Exon 1 of 6	ENST00000263726.4	NP_203129.1	Q969G2A0A0S2Z5S4
LHX4	XM_011510105.3 link	c.-108+1617A>G		intron_variant	Intron 1 of 5		XP_011508407.1
LHX4	XM_011510106.4 link	c.-108+1377A>G		intron_variant	Intron 1 of 5		XP_011508408.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LHX4	ENST00000263726.4 link	c.1A>G	p.Met1?	start_lost	Exon 1 of 6	1	NM_033343.4	ENSP00000263726.2		Q969G2
LHX4	ENST00000558139.1 link	n.233A>G		non_coding_transcript_exon_variant	Exon 1 of 2	3

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152182

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152182

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74332

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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:

0.00

Gnomad4 OTH

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

LHX4-related disorder

Uncertain:1

Dec 13, 2023

PreventionGenetics, part of Exact Sciences

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

The LHX4 c.1A>G variant is predicted to disrupt the translation initiation site (Start loss). To our knowledge, this variant has not been reported in the literature or in a large population database, indicating this variant is rare. This variant impacts a highly conserved base as well as a highly conserved residue in the LHX4 gene. However, the impacted residue is adjacent to another Methionine codon, which may be used as the translation start site in the presence of this variant. Start-loss variants are frequently pathogenic. However, although we suspect that this variant may be pathogenic, at this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.41

BayesDel_noAF

Pathogenic

0.36

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.12

Eigen

Benign

0.13

Eigen_PC

Uncertain

0.28

FATHMM_MKL

Uncertain

0.90

LIST_S2

Uncertain

0.90

M_CAP

Pathogenic

0.52

MetaRNN

Pathogenic

0.81

MetaSVM

Uncertain

-0.058

PROVEAN

Benign

-0.39

REVEL

Uncertain

0.53

Sift

Pathogenic

0.0

Sift4G

Uncertain

0.045

Polyphen

0.23

Vest4

0.95

MutPred

0.45

Loss of loop (P = 0.1258);

MVP

0.84

ClinPred

1.0

GERP RS

5.5

Varity_R

0.79

gMVP

0.49

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.080

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