4-127633126-T-A

Position:

chr4-127633126-T-A

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBS1_SupportingBS2

The NM_015693.4(INTU):c.92T>A(p.Phe31Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000115 in 1,614,092 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00011 ( 2 hom. )

Consequence

INTU
NM_015693.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: -1.28

Variant links:

Genes affected

INTU (HGNC:29239): (inturned planar cell polarity protein) Involved in embryonic digit morphogenesis; roof of mouth development; and tongue morphogenesis. Located in ciliary basal body and motile cilium. Implicated in asphyxiating thoracic dystrophy and orofaciodigital syndrome XVII. [provided by Alliance of Genome Resources, Apr 2022]

INTU links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.019618213).

BS1

Variant frequency is greater than expected in population mid. gnomad4_exome allele frequency = 0.000112 (164/1461760) while in subpopulation MID AF= 0.00295 (17/5764). AF 95% confidence interval is 0.00188. There are 2 homozygotes in gnomad4_exome. There are 91 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

BS2

High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
INTU	NM_015693.4 linkuse as main transcript	c.92T>A	p.Phe31Tyr	missense_variant	1/16	ENST00000335251.11	NP_056508.2	Q9ULD6-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
INTU	ENST00000335251.11 linkuse as main transcript	c.92T>A	p.Phe31Tyr	missense_variant	1/16	1	NM_015693.4	ENSP00000334003.5	Q9ULD6-1
INTU	ENST00000503952.5 linkuse as main transcript	n.92T>A		non_coding_transcript_exon_variant	1/17	1		ENSP00000421995.1	Q9ULD6-3
INTU	ENST00000504491.1 linkuse as main transcript	c.89+9635T>A		intron_variant		4		ENSP00000422550.1	J3QTA5
INTU	ENST00000503626.5 linkuse as main transcript	n.92T>A		non_coding_transcript_exon_variant	1/18	2		ENSP00000426287.1	Q9ULD6-2

Frequencies

GnomAD3 genomes

AF:

0.000145

AC:

AN:

152214

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000827

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000250

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000147

AC:

AN:

251424

Hom.:

AF XY:

0.000162

AC XY:

AN XY:

135880

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.0000992

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000229

Gnomad FIN exome

AF:

0.0000462

Gnomad NFE exome

AF:

0.000185

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000112

AC:

164

AN:

1461760

Hom.:

Cov.:

AF XY:

0.000125

AC XY:

AN XY:

727168

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.000157

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000301

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.0000863

Gnomad4 OTH exome

AF:

0.000248

GnomAD4 genome

AF:

0.000144

AC:

AN:

152332

Hom.:

Cov.:

AF XY:

0.000134

AC XY:

AN XY:

74496

show subpopulations

Gnomad4 AFR

AF:

0.0000240

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000828

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000250

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000820

Hom.:

Bravo

AF:

0.000140

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000157

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 13, 2021

The c.92T>A (p.F31Y) alteration is located in exon 1 (coding exon 1) of the INTU gene. This alteration results from a T to A substitution at nucleotide position 92, causing the phenylalanine (F) at amino acid position 31 to be replaced by a tyrosine (Y). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 31, 2023

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The tyrosine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. This variant has not been reported in the literature in individuals affected with INTU-related conditions. This variant is present in population databases (rs148080788, gnomAD 0.03%). This sequence change replaces phenylalanine, which is neutral and non-polar, with tyrosine, which is neutral and polar, at codon 31 of the INTU protein (p.Phe31Tyr). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.070

BayesDel_addAF

Benign

-0.61

BayesDel_noAF

Benign

-0.80

CADD

Benign

3.9

DANN

Benign

0.77

DEOGEN2

Benign

0.14

Eigen

Benign

-1.5

Eigen_PC

Benign

-1.5

FATHMM_MKL

Benign

0.019

LIST_S2

Benign

0.28

M_CAP

Benign

0.0013

MetaRNN

Benign

0.020

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-0.34

PrimateAI

Benign

0.35

PROVEAN

Benign

0.41

REVEL

Benign

0.013

Sift

Benign

1.0

Sift4G

Benign

1.0

Polyphen

0.0

Vest4

0.15

MVP

0.27

MPC

0.13

ClinPred

0.87

GERP RS

-2.4

Varity_R

0.050

gMVP

0.10

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over