NM_024077.5:c.193T>C

Variant names:

• chr9-89325437-T-C
• rs751179748
• NM_024077.5:c.193T>C

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2

The NM_024077.5(SECISBP2):​c.193T>C​(p.Tyr65His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000403 in 1,613,988 control chromosomes in the GnomAD database, including 3 homozygotes. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000046 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000040 (3 hom.)
• Consequence: SECISBP2 NM_024077.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.33
• Publications: 0 publications found

Genes affected

SECISBP2 (HGNC:30972): (SECIS binding protein 2) The protein encoded by this gene is one of the essential components of the machinery involved in co-translational insertion of selenocysteine (Sec) into selenoproteins. Sec is encoded by the UGA codon, which normally signals translation termination. The recoding of UGA as Sec codon requires a Sec insertion sequence (SECIS) element; present in the 3' untranslated regions of eukaryotic selenoprotein mRNAs. This protein specifically binds to the SECIS element, which is stimulated by a Sec-specific translation elongation factor. Mutations in this gene have been associated with reduction in enzymatic activity of type II iodothyronine deiodinase (a selenoprotein) and abnormal thyroid hormone metabolism. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Aug 2017]

SECISBP2 Gene-Disease associations (from GenCC):

• thyroid hormone metabolism, abnormal 1

  Inheritance: AR Classification: STRONG Submitted by: G2P, PanelApp Australia, Labcorp Genetics (formerly Invitae)
• short stature-delayed bone age due to thyroid hormone metabolism deficiency

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -4 ACMG points.

• BS2: High Homozygotes in GnomAdExome4 at 3 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_024077.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SECISBP2	NM_024077.5	MANE Select	c.193T>C	p.Tyr65His	missense	Exon 3 of 17	NP_076982.3
	SECISBP2	NM_001282688.2		c.193T>C	p.Tyr65His	missense	Exon 3 of 17	NP_001269617.1
	SECISBP2	NM_001354697.2		c.193T>C	p.Tyr65His	missense	Exon 3 of 17	NP_001341626.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SECISBP2	ENST00000375807.8	TSL:1 MANE Select	c.193T>C	p.Tyr65His	missense	Exon 3 of 17	ENSP00000364965.3	Q96T21-1
	SECISBP2	ENST00000339901.8	TSL:1	c.85-111T>C		intron	N/A	ENSP00000364959.3	Q96T21-2
	SECISBP2	ENST00000470305.1	TSL:1	n.3238T>C		non_coding_transcript_exon	Exon 1 of 3

Frequencies

GnomAD3 genomes AF: 0.0000460 AC: 7 AN: 152214 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000193

Gnomad SAS AF: 0.000828

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00316

Gnomad NFE AF: 0.0000147

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000478 AC: 12 AN: 251236 AF XY: 0.0000884

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000289

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000109

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000880

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000397 AC: 58 AN: 1461656 Hom.: 3 Cov.: 31 AF XY: 0.0000619 AC XY: 45 AN XY: 727140

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.0000224 AC: 1 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.0000252 AC: 1 AN: 39682

South Asian (SAS) AF: 0.000580 AC: 50 AN: 86254

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53352

Middle Eastern (MID) AF: 0.000173 AC: 1 AN: 5766

European-Non Finnish (NFE) AF: 0.00000360 AC: 4 AN: 1111882

Other (OTH) AF: 0.0000166 AC: 1 AN: 60386

GnomAD4 genome AF: 0.0000460 AC: 7 AN: 152332 Hom.: 0 Cov.: 33 AF XY: 0.0000805 AC XY: 6 AN XY: 74502

African (AFR) AF: 0.00 AC: 0 AN: 41584

American (AMR) AF: 0.00 AC: 0 AN: 15302

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.000193 AC: 1 AN: 5182

South Asian (SAS) AF: 0.000829 AC: 4 AN: 4826

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10620

Middle Eastern (MID) AF: 0.00340 AC: 1 AN: 294

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68028

Other (OTH) AF: 0.00 AC: 0 AN: 2116

Alfa AF: 0.0000508 Hom.: 0

Bravo AF: 0.00000378

ExAC AF: 0.0000494 AC: 6

Asia WGS AF: 0.000289 AC: 1 AN: 3478

EpiCase AF: 0.0000545

EpiControl AF: 0.00

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.12
BayesDel_addAF	Benign	-0.14	T
BayesDel_noAF	Benign	-0.14
CADD	Benign	22
DANN	Uncertain	1.0
DEOGEN2	Benign	0.16	T
Eigen	Benign	0.067
Eigen_PC	Benign	-0.054
FATHMM_MKL	Benign	0.17	N
LIST_S2	Benign	0.86	D
M_CAP	Uncertain	0.089	D
MetaRNN	Uncertain	0.62	D
MetaSVM	Benign	-0.47	T
MutationAssessor	Uncertain	2.4	M
PhyloP100		2.3
PrimateAI	Benign	0.48	T
PROVEAN	Uncertain	-2.8	D
REVEL	Uncertain	0.41
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0010	D
Polyphen		1.0	D
Vest4		0.55
MutPred		0.57		Gain of disorder (P = 0.0326)
MVP		0.89
MPC		0.37
ClinPred		0.54	D
GERP RS		4.3
Varity_R		0.48
gMVP		0.23
Mutation Taster		=92/8	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.060		Details are displayed if max score is > 0.2

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

Other links and lift over

dbSNP: rs751179748; hg19: chr9-91940352;