dbSNP rs1230020143: TSHB:p.Ile46Val (chr1-115033498-A-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_000549.5(TSHB):c.136A>G(p.Ile46Val) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,124 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I46F) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

TSHB
NM_000549.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.12

Variant links:

Genes affected

TSHB (HGNC:12372): (thyroid stimulating hormone subunit beta) The four human glycoprotein hormones chorionic gonadotropin (CG), luteinizing hormone (LH), follicle stimulating hormone (FSH), and thyroid stimulating hormone (TSH) are dimers consisting of alpha and beta subunits that are associated noncovalently. The alpha subunits of these hormones are identical, however, their beta chains are unique and confer biological specificity. Thyroid stimulating hormone functions in the control of thyroid structure and metabolism. The protein encoded by this gene is the beta subunit of thyroid stimulating hormone. Mutations in this gene are associated with congenital central and secondary hypothyroidism and Hashimoto's thyroiditis. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, May 2013]

TSHB links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TSHB	NM_000549.5 link	c.136A>G	p.Ile46Val	missense_variant	Exon 2 of 3	ENST00000256592.3	NP_000540.2	P01222-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TSHB	ENST00000256592.3 link	c.136A>G	p.Ile46Val	missense_variant	Exon 2 of 3	5	NM_000549.5	ENSP00000256592.1		P01222-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251316

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135822

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461124

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726880

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.075

BayesDel_noAF

Benign

-0.25

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.60

D;D

Eigen

Benign

0.075

Eigen_PC

Benign

0.22

FATHMM_MKL

Uncertain

0.94

LIST_S2

Benign

0.85

T;.

M_CAP

Benign

0.020

MetaRNN

Uncertain

0.47

T;T

MetaSVM

Benign

-0.36

MutationAssessor

Uncertain

2.1

M;M

PrimateAI

Uncertain

0.49

PROVEAN

Benign

-0.61

N;N

REVEL

Uncertain

0.34

Sift

Benign

0.072

T;T

Sift4G

Benign

0.11

T;T

Polyphen

0.013

B;B

Vest4

0.30

MutPred

0.64

Gain of catalytic residue at I46 (P = 0.0208);Gain of catalytic residue at I46 (P = 0.0208);

MVP

0.71

MPC

0.27

ClinPred

0.42

GERP RS

5.0

Varity_R

0.13

gMVP

0.69

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over