2-48687162-C-T

Position:

chr2-48687162-C-T

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 2P and 10B. PM2BP4_StrongBP6_ModerateBS1

The NM_000233.4(LHCGR):c.*535G>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00191 in 158,438 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0019 ( 1 hom., cov: 32)

Exomes 𝑓: 0.0023 ( 0 hom. )

Consequence

LHCGR
NM_000233.4 3_prime_UTR

Scores

Clinical Significance

Benign/Likely benign criteria provided, single submitter B:3

Conservation

PhyloP100: 0.129

Variant links:

Genes affected

LHCGR (HGNC:6585): (luteinizing hormone/choriogonadotropin receptor) This gene encodes the receptor for both luteinizing hormone and choriogonadotropin. This receptor belongs to the G-protein coupled receptor 1 family, and its activity is mediated by G proteins which activate adenylate cyclase. Mutations in this gene result in disorders of male secondary sexual character development, including familial male precocious puberty, also known as testotoxicosis, hypogonadotropic hypogonadism, Leydig cell adenoma with precocious puberty, and male pseudohermaphtoditism with Leydig cell hypoplasia. [provided by RefSeq, Jul 2008]

LHCGR links:

STON1-GTF2A1L (HGNC:):

STON1-GTF2A1L links:

GTF2A1L (HGNC:30727): (general transcription factor IIA subunit 1 like) The assembly and stability of the RNA polymerase II transcription pre-initiation complex on a eukaryotic core promoter involve the effects of transcription factor IIA (TFIIA) on the interaction between TATA-binding protein (TBP) and DNA. This gene encodes a germ cell-specific counterpart of the large (alpha/beta) subunit of general transcription factor TFIIA that is able to stabilize the binding of TBP to DNA and may be uniquely important to testis biology. Alternative splicing for this locus has been observed and two variants, encoding distinct isoforms, have been identified. Co-transcription of this gene and the neighboring upstream gene generates a rare transcript (SALF), which encodes a fusion protein comprised of sequence sharing identity with each individual gene product. [provided by RefSeq, Mar 2014]

GTF2A1L links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.97).

BP6

Variant 2-48687162-C-T is Benign according to our data. Variant chr2-48687162-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 336447.Status of the report is criteria_provided_single_submitter, 1 stars.

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.0019 (289/152320) while in subpopulation NFE AF= 0.00282 (192/68026). AF 95% confidence interval is 0.0025. There are 1 homozygotes in gnomad4. There are 138 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LHCGR	NM_000233.4 linkuse as main transcript	c.*535G>A		3_prime_UTR_variant	11/11	ENST00000294954.12	NP_000224.2
STON1-GTF2A1L	NM_001198593.2 linkuse as main transcript	c.3441+15482C>T		intron_variant			NP_001185522.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
LHCGR	ENST00000294954.12 linkuse as main transcript	c.*535G>A		3_prime_UTR_variant	11/11	1	NM_000233.4	ENSP00000294954	A2	P22888-1
GTF2A1L	ENST00000508440.1 linkuse as main transcript	c.276+15482C>T		intron_variant		2		ENSP00000421474

Frequencies

GnomAD3 genomes

AF:

0.00190

AC:

289

AN:

152202

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000458

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00236

Gnomad ASJ

AF:

0.00750

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000829

Gnomad FIN

AF:

0.000659

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.00282

Gnomad OTH

AF:

0.00191

GnomAD4 exome

AF:

0.00229

AC:

AN:

6118

Hom.:

Cov.:

AF XY:

0.00175

AC XY:

AN XY:

3438

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00257

Gnomad4 ASJ exome

AF:

0.0278

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00170

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00212

Gnomad4 OTH exome

AF:

0.00463

GnomAD4 genome

AF:

0.00190

AC:

289

AN:

152320

Hom.:

Cov.:

AF XY:

0.00185

AC XY:

138

AN XY:

74468

show subpopulations

Gnomad4 AFR

AF:

0.000457

Gnomad4 AMR

AF:

0.00235

Gnomad4 ASJ

AF:

0.00750

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000829

Gnomad4 FIN

AF:

0.000659

Gnomad4 NFE

AF:

0.00282

Gnomad4 OTH

AF:

0.00189

Alfa

AF:

0.00238

Hom.:

Bravo

AF:

0.00212

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:3

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Hypergonadotropic hypogonadism

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jun 14, 2016

- -

Leydig cell agenesis

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Gonadotropin-independent familial sexual precocity

Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.97

CADD

Benign

1.2

DANN

Benign

0.74

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