rs190174009

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_000273.3(GPR143):​c.1120+16C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000243 in 1,125,567 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 74 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0012 ( 0 hom., 38 hem., cov: 23)
Exomes 𝑓: 0.00014 ( 0 hom. 36 hem. )

Consequence

GPR143
NM_000273.3 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.421

Publications

0 publications found
Variant links:
Genes affected
GPR143 (HGNC:20145): (G protein-coupled receptor 143) This gene encodes a protein that binds to heterotrimeric G proteins and is targeted to melanosomes in pigment cells. This protein is thought to be involved in intracellular signal transduction mechanisms. Mutations in this gene cause ocular albinism type 1, also referred to as Nettleship-Falls type ocular albinism, a severe visual disorder. A related pseudogene has been identified on chromosome Y. [provided by RefSeq, Dec 2009]
TBL1X (HGNC:11585): (transducin beta like 1 X-linked) The protein encoded by this gene has sequence similarity with members of the WD40 repeat-containing protein family. The WD40 group is a large family of proteins, which appear to have a regulatory function. It is believed that the WD40 repeats mediate protein-protein interactions and members of the family are involved in signal transduction, RNA processing, gene regulation, vesicular trafficking, cytoskeletal assembly and may play a role in the control of cytotypic differentiation. This encoded protein is found as a subunit in corepressor SMRT (silencing mediator for retinoid and thyroid receptors) complex along with histone deacetylase 3 protein. This gene is located adjacent to the ocular albinism gene and it is thought to be involved in the pathogenesis of the ocular albinism with late-onset sensorineural deafness phenotype. Four transcript variants encoding two different isoforms have been found for this gene. This gene is highly similar to the Y chromosome TBL1Y gene. [provided by RefSeq, Nov 2008]
TBL1X Gene-Disease associations (from GenCC):
  • hypothyroidism, congenital, nongoitrous, 8
    Inheritance: XL, Unknown Classification: STRONG, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.84).
BP6
Variant X-9739469-G-A is Benign according to our data. Variant chrX-9739469-G-A is described in ClinVar as Benign. ClinVar VariationId is 255710.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00118 (132/112278) while in subpopulation AFR AF = 0.00423 (131/30984). AF 95% confidence interval is 0.00364. There are 0 homozygotes in GnomAd4. There are 38 alleles in the male GnomAd4 subpopulation. Median coverage is 23. This position passed quality control check.
BS2
High Hemizygotes in GnomAd4 at 38 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
GPR143NM_000273.3 linkc.1120+16C>T intron_variant Intron 8 of 8 ENST00000467482.6 NP_000264.2 P51810
GPR143NM_001440781.1 linkc.1120+16C>T intron_variant Intron 8 of 8 NP_001427710.1
GPR143XM_024452388.2 linkc.868+16C>T intron_variant Intron 8 of 8 XP_024308156.1
LOC105373126XR_950507.2 linkn.1620+750G>A intron_variant Intron 1 of 1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
GPR143ENST00000467482.6 linkc.1120+16C>T intron_variant Intron 8 of 8 1 NM_000273.3 ENSP00000417161.1 P51810
TBL1XENST00000647060.1 linkc.1555-1313G>A intron_variant Intron 15 of 15 ENSP00000495467.1 A0A2R8YFW3
GPR143ENST00000487206.1 linkn.235+16C>T intron_variant Intron 1 of 1 3
GPR143ENST00000447366.5 linkc.*83C>T downstream_gene_variant 3 ENSP00000390546.2 H7BZN6

Frequencies

GnomAD3 genomes
AF:
0.00118
AC:
132
AN:
112228
Hom.:
0
Cov.:
23
show subpopulations
Gnomad AFR
AF:
0.00424
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000943
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
GnomAD2 exomes
AF:
0.000393
AC:
65
AN:
165422
AF XY:
0.000209
show subpopulations
Gnomad AFR exome
AF:
0.00512
Gnomad AMR exome
AF:
0.0000771
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000139
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000140
AC:
142
AN:
1013289
Hom.:
0
Cov.:
22
AF XY:
0.000119
AC XY:
36
AN XY:
302293
show subpopulations
African (AFR)
AF:
0.00503
AC:
125
AN:
24840
American (AMR)
AF:
0.0000581
AC:
2
AN:
34431
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
18723
East Asian (EAS)
AF:
0.00
AC:
0
AN:
29601
South Asian (SAS)
AF:
0.00
AC:
0
AN:
51167
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
39939
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
3886
European-Non Finnish (NFE)
AF:
0.00000130
AC:
1
AN:
767386
Other (OTH)
AF:
0.000323
AC:
14
AN:
43316
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
8
16
23
31
39
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00118
AC:
132
AN:
112278
Hom.:
0
Cov.:
23
AF XY:
0.00110
AC XY:
38
AN XY:
34454
show subpopulations
African (AFR)
AF:
0.00423
AC:
131
AN:
30984
American (AMR)
AF:
0.0000942
AC:
1
AN:
10617
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2652
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3538
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2658
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6179
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
218
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
53214
Other (OTH)
AF:
0.00
AC:
0
AN:
1533
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.520
Heterozygous variant carriers
0
5
10
15
20
25
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00128
Hom.:
1
Bravo
AF:
0.00145

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
-
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:1
Dec 11, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.84
CADD
Benign
0.27
DANN
Benign
0.75
PhyloP100
-0.42
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs190174009; hg19: chrX-9707509; API