chrX-67661741-T-G

Variant names:

• chrX-67661741-T-G
• rs4446868
• NM_000044.6:c.1768+18334T>G

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_000044.6(AR):​c.1768+18334T>G variant causes a intron change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: 𝑓 0.65 (20315 hom., 21743 hem., cov: 22)
  • Failed GnomAD Quality Control
• Consequence: AR NM_000044.6 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.54
• Publications: 6 publications found

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]

AR Gene-Disease associations (from GenCC):

• androgen insensitivity syndrome

  Inheritance: XL Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine
• Kennedy disease

  Inheritance: XL Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, ClinGen, G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae)
• partial androgen insensitivity syndrome

  Inheritance: XL Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Genomics England PanelApp
• complete androgen insensitivity syndrome

  Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

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

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-1.01).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AR	NM_000044.6	c.1768+18334T>G		intron_variant	Intron 2 of 7	ENST00000374690.9	NP_000035.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
AR	ENST00000374690.9	c.1768+18334T>G		intron_variant	Intron 2 of 7	1	NM_000044.6	ENSP00000363822.3

Frequencies

GnomAD3 genomes AF: 0.654 AC: 72035 AN: 110191 Hom.: 20323 Cov.: 22

Gnomad AFR AF: 0.139

Gnomad AMI AF: 0.881

Gnomad AMR AF: 0.832

Gnomad ASJ AF: 0.891

Gnomad EAS AF: 0.999

Gnomad SAS AF: 0.915

Gnomad FIN AF: 0.879

Gnomad MID AF: 0.780

Gnomad NFE AF: 0.840

Gnomad OTH AF: 0.702

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Data not reliable, filtered out with message: InbreedingCoeff AF: 0.653 AC: 72029 AN: 110247 Hom.: 20315 Cov.: 22 AF XY: 0.669 AC XY: 21743 AN XY: 32511

African (AFR) AF: 0.138 AC: 4217 AN: 30526

American (AMR) AF: 0.832 AC: 8579 AN: 10312

Ashkenazi Jewish (ASJ) AF: 0.891 AC: 2344 AN: 2630

East Asian (EAS) AF: 0.999 AC: 3469 AN: 3473

South Asian (SAS) AF: 0.915 AC: 2317 AN: 2532

European-Finnish (FIN) AF: 0.879 AC: 5078 AN: 5779

Middle Eastern (MID) AF: 0.774 AC: 164 AN: 212

European-Non Finnish (NFE) AF: 0.840 AC: 44211 AN: 52612

Other (OTH) AF: 0.705 AC: 1053 AN: 1493

Alfa AF: 0.750 Hom.: 6274

Bravo AF: 0.636

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-1.0
CADD	Benign	0.52
DANN	Benign	0.33
PhyloP100		-1.5
Mutation Taster		=100/0	polymorphism (auto)

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

Other links and lift over

dbSNP: rs4446868; hg19: chrX-66881583;