chr1-115033403-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_000549.5(TSHB):​c.41C>T​(p.Thr14Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,196 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T14A) has been classified as Benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

TSHB
NM_000549.5 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.289
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.069880515).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TSHBNM_000549.5 linkuse as main transcriptc.41C>T p.Thr14Ile missense_variant 2/3 ENST00000256592.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TSHBENST00000256592.3 linkuse as main transcriptc.41C>T p.Thr14Ile missense_variant 2/35 NM_000549.5 P1P01222-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461196
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
726904
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.00e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsSep 01, 2021The c.41C>T (p.T14I) alteration is located in exon 2 (coding exon 1) of the TSHB gene. This alteration results from a C to T substitution at nucleotide position 41, causing the threonine (T) at amino acid position 14 to be replaced by an isoleucine (I). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.071
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
4.5
DANN
Benign
0.20
DEOGEN2
Benign
0.29
T;T
Eigen
Benign
-0.91
Eigen_PC
Benign
-0.90
FATHMM_MKL
Benign
0.092
N
LIST_S2
Benign
0.12
T;.
M_CAP
Benign
0.0098
T
MetaRNN
Benign
0.070
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.90
L;L
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.29
T
PROVEAN
Benign
-0.31
N;N
REVEL
Benign
0.073
Sift
Benign
0.50
T;T
Sift4G
Benign
0.45
T;T
Polyphen
0.0
B;B
Vest4
0.061
MutPred
0.47
Gain of stability (P = 0.0591);Gain of stability (P = 0.0591);
MVP
0.49
MPC
0.32
ClinPred
0.032
T
GERP RS
1.9
Varity_R
0.025
gMVP
0.62

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr1-115576024; API