3-12901185-G-A

Variant names:

• chr3-12901185-G-A
• NM_001134382.3:c.3143C>T

Variant summary

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

The NM_001134382.3(IQSEC1):​c.3143C>T​(p.Pro1048Leu) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 10/15 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: IQSEC1 NM_001134382.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.88
• Publications: 0 publications found

Genes affected

IQSEC1 (HGNC:29112): (IQ motif and Sec7 domain ArfGEF 1) Predicted to enable protein kinase binding activity. Predicted to be involved in several processes, including positive regulation of focal adhesion disassembly; positive regulation of keratinocyte migration; and regulation of postsynaptic neurotransmitter receptor internalization. Located in nucleolus. Implicated in intellectual developmental disorder with short stature and behavioral abnormalities. [provided by Alliance of Genome Resources, Apr 2022]

IQSEC1 Gene-Disease associations (from GenCC):

• intellectual developmental disorder with short stature and behavioral abnormalities

  Inheritance: AR Classification: STRONG, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
• autosomal recessive non-syndromic intellectual disability

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ENSG00000297478 (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=0.13450101).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001134382.3. 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
	IQSEC1	NM_001134382.3	MANE Select	c.3143C>T	p.Pro1048Leu	missense	Exon 14 of 14	NP_001127854.1	Q6DN90-3
	IQSEC1	NM_001376938.2		c.3467C>T	p.Pro1156Leu	missense	Exon 16 of 16	NP_001363867.1	A0A3B3IRZ4
	IQSEC1	NM_001330619.3		c.*324C>T		3_prime_UTR	Exon 13 of 13	NP_001317548.1	A0A0C4DGT3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	IQSEC1	ENST00000613206.2	TSL:2 MANE Select	c.3143C>T	p.Pro1048Leu	missense	Exon 14 of 14	ENSP00000480301.1	Q6DN90-3
	IQSEC1	ENST00000618604.4	TSL:1	c.*324C>T		3_prime_UTR	Exon 13 of 13	ENSP00000478001.1	A0A0C4DGT3
	IQSEC1	ENST00000273221.8	TSL:1	c.2847+1588C>T		intron	N/A	ENSP00000273221.4	Q6DN90-1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.14
BayesDel_addAF	Benign	-0.14	T
BayesDel_noAF	Benign	-0.45
CADD	Benign	22
DANN	Benign	0.89
DEOGEN2	Benign	0.083	T
Eigen	Benign	-0.32
Eigen_PC	Benign	-0.27
FATHMM_MKL	Uncertain	0.82	D
LIST_S2	Uncertain	0.88	D
MetaRNN	Benign	0.13	T
MetaSVM	Benign	-0.94	T
PhyloP100		4.9
PrimateAI	Pathogenic	0.79	T
Sift4G	Uncertain	0.0070	D
Vest4		0.49
MVP		0.12
ClinPred		0.30	T
GERP RS		3.1
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.8
gMVP		0.40
Mutation Taster		=100/0	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

hg19: chr3-12942684;