rs144755294

Positions:

chrX-74524732-C-T

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_006517.5(SLC16A2):c.949C>T(p.Arg317Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000293 in 1,209,889 control chromosomes in the GnomAD database, including 2 homozygotes. There are 96 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0015 ( 1 hom., 56 hem., cov: 22)

Exomes 𝑓: 0.00017 ( 1 hom. 40 hem. )

Consequence

SLC16A2
NM_006517.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: 2.13

Variant links:

Genes affected

SLC16A2 (HGNC:10923): (solute carrier family 16 member 2) This gene encodes an integral membrane protein that functions as a transporter of thyroid hormone. The encoded protein facilitates the cellular importation of thyroxine (T4), triiodothyronine (T3), reverse triiodothyronine (rT3) and diidothyronine (T2). This gene is expressed in many tissues and likely plays an important role in the development of the central nervous system. Loss of function mutations in this gene are associated with psychomotor retardation in males while females exhibit no neurological defects and more moderate thyroid-deficient phenotypes. This gene is subject to X-chromosome inactivation. Mutations in this gene are the cause of Allan-Herndon-Dudley syndrome. [provided by RefSeq, Mar 2012]

SLC16A2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.01689151).

BP6

Variant X-74524732-C-T is Benign according to our data. Variant chrX-74524732-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 212187.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1, Benign=2}. Variant chrX-74524732-C-T is described in Lovd as [Likely_benign].

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00153 (171/111749) while in subpopulation AFR AF= 0.00459 (141/30733). AF 95% confidence interval is 0.00397. There are 1 homozygotes in gnomad4. There are 56 alleles in male gnomad4 subpopulation. Median coverage is 22. This position pass quality control queck.

BS2

High Hemizygotes in GnomAd4 at 56 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SLC16A2	NM_006517.5 linkuse as main transcript	c.949C>T	p.Arg317Cys	missense_variant	3/6	ENST00000587091.6	NP_006508.2	P36021

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
SLC16A2	ENST00000587091.6 linkuse as main transcript	c.949C>T	p.Arg317Cys	missense_variant	3/6	1	NM_006517.5	ENSP00000465734.1	P36021
SLC16A2	ENST00000590447.1 linkuse as main transcript	c.388C>T	p.Arg130Cys	missense_variant	2/4	5		ENSP00000466213.1	K7ELT4
SLC16A2	ENST00000636771.1 linkuse as main transcript	n.*650C>T		non_coding_transcript_exon_variant	4/7	5		ENSP00000490445.1	A0A1B0GVB4
SLC16A2	ENST00000636771.1 linkuse as main transcript	n.*650C>T		3_prime_UTR_variant	4/7	5		ENSP00000490445.1	A0A1B0GVB4

Frequencies

GnomAD3 genomes

AF:

0.00153

AC:

171

AN:

111697

Hom.:

Cov.:

AF XY:

0.00165

AC XY:

AN XY:

33875

show subpopulations

Gnomad AFR

AF:

0.00457

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00247

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000377

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000753

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000328

AC:

AN:

183191

Hom.:

AF XY:

0.000148

AC XY:

AN XY:

67661

show subpopulations

Gnomad AFR exome

AF:

0.00395

Gnomad AMR exome

AF:

0.000182

Gnomad ASJ exome

AF:

0.000134

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000122

Gnomad OTH exome

AF:

0.000221

GnomAD4 exome

AF:

0.000167

AC:

183

AN:

1098140

Hom.:

Cov.:

AF XY:

0.000110

AC XY:

AN XY:

363502

show subpopulations

Gnomad4 AFR exome

AF:

0.00428

Gnomad4 AMR exome

AF:

0.000483

Gnomad4 ASJ exome

AF:

0.0000516

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000185

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000309

Gnomad4 OTH exome

AF:

0.000542

GnomAD4 genome

AF:

0.00153

AC:

171

AN:

111749

Hom.:

Cov.:

AF XY:

0.00165

AC XY:

AN XY:

33937

show subpopulations

Gnomad4 AFR

AF:

0.00459

Gnomad4 AMR

AF:

0.00247

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000753

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000180

Hom.:

Bravo

AF:

0.00212

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.00469

AC:

ESP6500EA

AF:

0.000149

AC:

ExAC

AF:

0.000404

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Genetic Services Laboratory, University of Chicago

Oct 08, 2014

- -

Spastic paraplegia

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 30, 2023

- -

Inborn genetic diseases

Benign:1

Benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 29, 2018

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

not provided

Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Apr 06, 2021

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.17

BayesDel_addAF

Benign

-0.41

BayesDel_noAF

Benign

-0.36

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Pathogenic

0.80

FATHMM_MKL

Uncertain

0.89

LIST_S2

Uncertain

0.95

M_CAP

Pathogenic

0.39

MetaRNN

Benign

0.017

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.0

PrimateAI

Uncertain

0.61

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.49

MVP

0.92

MPC

2.2

ClinPred

0.058

GERP RS

4.6

Varity_R

0.49

gMVP

0.70

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