X-67723711-C-T

Variant names:

• chrX-67723711-C-T
• rs137852580
• NM_000044.6:c.2633C>T

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1 PM2 PP3_Moderate

The NM_000044.6(AR):​c.2633C>T​(p.Thr878Ile) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars).

• Frequency: Genomes: not found (cov: 21)
• Consequence: AR NM_000044.6 missense
• Clinical Significance: Uncertain significance no assertion criteria provided U:1
• Conservation: PhyloP100: 4.00

Genes affected

AR (HGNC:644): (androgen receptor) The androgen receptor gene is more than 90 kb long and codes for a protein that has 3 major functional domains: the N-terminal domain, DNA-binding domain, and androgen-binding domain. The protein functions as a steroid-hormone activated transcription factor. Upon binding the hormone ligand, the receptor dissociates from accessory proteins, translocates into the nucleus, dimerizes, and then stimulates transcription of androgen responsive genes. This gene contains 2 polymorphic trinucleotide repeat segments that encode polyglutamine and polyglycine tracts in the N-terminal transactivation domain of its protein. Expansion of the polyglutamine tract from the normal 9-34 repeats to the pathogenic 38-62 repeats causes spinal bulbar muscular atrophy (SBMA, also known as Kennedy's disease). Mutations in this gene are also associated with complete androgen insensitivity (CAIS). Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jan 2017]

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM1: In a binding_site (size 0) in uniprot entity ANDR_HUMAN
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.924

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AR	NM_000044.6	c.2633C>T	p.Thr878Ile	missense_variant	Exon 8 of 8	ENST00000374690.9	NP_000035.2
AR	NM_001011645.3	c.1037C>T	p.Thr346Ile	missense_variant	Exon 9 of 9		NP_001011645.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
AR	ENST00000374690.9	c.2633C>T	p.Thr878Ile	missense_variant	Exon 8 of 8	1	NM_000044.6	ENSP00000363822.3

Frequencies

GnomAD3 genomes Cov.: 21

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 21

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

Submissions by phenotype

Androgen resistance syndrome Uncertain:1

May 11, 2009

Clinical Molecular Genetics Laboratory, Johns Hopkins All Children's Hospital

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.98
BayesDel_addAF	Pathogenic	0.65	D
BayesDel_noAF	Pathogenic	0.70
CADD	Pathogenic	26
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.088	T;.;.
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Uncertain	0.94	D;D;D
M_CAP	Pathogenic	0.94	D
MetaRNN	Pathogenic	0.92	D;D;D
MetaSVM	Pathogenic	1.0	D
PrimateAI	Pathogenic	0.83	D
PROVEAN	Uncertain	-4.3	.;D;D
REVEL	Pathogenic	0.96
Sift	Uncertain	0.0060	.;D;D
Sift4G	Uncertain	0.013	D;D;D
Vest4		0.90
MVP		1.0
MPC		1.3
ClinPred		0.99	D
GERP RS		5.2
Varity_R		0.97
gMVP		0.95

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

Other links and lift over

dbSNP: rs137852580; hg19: chrX-66943553;