rs1647735292

Variant names:

• chr1-179882522-G-A
• rs1647735292
• NM_015602.4:c.20G>A

Your query was ambiguous. Multiple possible variants found:

• chr1-179882522-G-A
• chr1-179882522-G-T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_015602.4(TOR1AIP1):​c.20G>A​(p.Arg7Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000383 in 1,306,498 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0000038 (0 hom.)
• Consequence: TOR1AIP1 NM_015602.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.21
• Publications: 0 publications found

Genes affected

TOR1AIP1 (HGNC:29456): (torsin 1A interacting protein 1) This gene encodes a type 2 integral membrane protein that binds A- and B-type lamins. The encoded protein localizes to the inner nuclear membrane and may be involved in maintaining the attachment of the nuclear membrane to the nuclear lamina during cell division. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Apr 2016]

TOR1AIP2 (HGNC:24055): (torsin 1A interacting protein 2) One of the two protein isoforms encoded by this gene is a type II integral membrane protein found in the endoplasmic reticulum (ER). The encoded protein is a cofactor for the ATPase TorsinA, regulating the amount of TorsinA present in the ER compared to that found in the nuclear envelope. Defects in this protein are a cause of early onset primary dystonia, a neuromuscular disease. The other isoform encoded by this gene is an interferon alpha responsive protein whose cellular role has yet to be determined. [provided by RefSeq, Mar 2017]

ENSG00000272906 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.13713291).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015602.4. 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
	TOR1AIP1	NM_015602.4	MANE Select	c.20G>A	p.Arg7Gln	missense	Exon 1 of 10	NP_056417.2
	TOR1AIP1	NM_001267578.2		c.20G>A	p.Arg7Gln	missense	Exon 1 of 10	NP_001254507.1	Q5JTV8-3
	LOC139427322	NM_001436163.1		c.*129G>A		downstream_gene	N/A	NP_001423092.1	A0AAQ5BH39

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TOR1AIP1	ENST00000606911.7	TSL:1 MANE Select	c.20G>A	p.Arg7Gln	missense	Exon 1 of 10	ENSP00000476687.1	Q5JTV8-1
	TOR1AIP1	ENST00000271583.7	TSL:5	c.20G>A	p.Arg7Gln	missense	Exon 1 of 11	ENSP00000271583.3	J3KN66
	TOR1AIP1	ENST00000528443.6	TSL:2	c.20G>A	p.Arg7Gln	missense	Exon 1 of 10	ENSP00000435365.2	Q5JTV8-3

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 0.00000383 AC: 5 AN: 1306498 Hom.: 0 Cov.: 29 AF XY: 0.00000787 AC XY: 5 AN XY: 634944

African (AFR) AF: 0.00 AC: 0 AN: 28414

American (AMR) AF: 0.00 AC: 0 AN: 19964

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 18828

East Asian (EAS) AF: 0.00 AC: 0 AN: 34666

South Asian (SAS) AF: 0.0000632 AC: 4 AN: 63304

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 44882

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5032

European-Non Finnish (NFE) AF: 9.64e-7 AC: 1 AN: 1037516

Other (OTH) AF: 0.00 AC: 0 AN: 53892

GnomAD4 genome Cov.: 31

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Autosomal recessive limb-girdle muscular dystrophy type 2Y (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.21	T
BayesDel_noAF	Benign	-0.54
CADD	Benign	18
DANN	Uncertain	0.99
DEOGEN2	Benign	0.071	T
Eigen	Benign	-0.64
Eigen_PC	Benign	-0.55
FATHMM_MKL	Benign	0.55	D
LIST_S2	Benign	0.80	T
M_CAP	Benign	0.018	T
MetaRNN	Benign	0.14	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.9	L
PhyloP100		1.2
PrimateAI	Benign	0.42	T
PROVEAN	Benign	-0.96	N
REVEL	Benign	0.024
Sift	Benign	0.27	T
Sift4G	Benign	0.20	T
Polyphen		0.25	B
Vest4		0.12
MutPred		0.31		Loss of MoRF binding (P = 0.0122)
MVP		0.41
MPC		0.55
ClinPred		0.58	D
GERP RS		2.4
PromoterAI		-0.0040	Neutral
Varity_R		0.044
gMVP		0.19
Mutation Taster		=93/7	polymorphism

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: rs1647735292; hg19: chr1-179851657;