Genetic Variant ITIH5:p.Ala729Thr (chr10-7566372-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_030569.7(ITIH5):c.2185G>A(p.Ala729Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000194 in 1,600,316 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 30)

Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

ITIH5
NM_030569.7 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.56

Variant links:

Genes affected

ITIH5 (HGNC:21449): (inter-alpha-trypsin inhibitor heavy chain 5) This gene encodes a heavy chain component of one of the inter-alpha-trypsin inhibitor (ITI) family members. ITI proteins are involved in extracellular matrix stabilization and in the prevention of tumor metastasis. They are also structurally related plasma serine protease inhibitors and are composed of a light chain and varying numbers of heavy chains. This family member is thought to function as a tumor suppressor in breast and thyroid cancers. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2011]

ITIH5 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ITIH5	NM_030569.7 link	c.2185G>A	p.Ala729Thr	missense_variant	Exon 13 of 14	ENST00000397146.7	NP_085046.5	Q86UX2C9J2H1
ITIH5	NM_032817.6 link	c.1543G>A	p.Ala515Thr	missense_variant	Exon 9 of 10		NP_116206.4	A0A096LP62
ITIH5	XM_011519713.4 link	c.2260G>A	p.Ala754Thr	missense_variant	Exon 14 of 15		XP_011518015.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
ITIH5	ENST00000397146.7 link	c.2185G>A	p.Ala729Thr	missense_variant	Exon 13 of 14	1	NM_030569.7	ENSP00000380333.3	C9J2H1
ITIH5	ENST00000613909.4 link	c.1543G>A	p.Ala515Thr	missense_variant	Exon 9 of 10	1		ENSP00000485414.1	A0A096LP62
ITIH5	ENST00000473591.1 link	n.447G>A		non_coding_transcript_exon_variant	Exon 3 of 3	3

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

151864

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000484

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.000479

GnomAD3 exomes

AF:

0.0000240

AC:

AN:

250054

Hom.:

AF XY:

0.0000444

AC XY:

AN XY:

135066

show subpopulations

Gnomad AFR exome

AF:

0.0000616

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000100

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000886

Gnomad OTH exome

AF:

0.000328

GnomAD4 exome

AF:

0.0000180

AC:

AN:

1448452

Hom.:

Cov.:

AF XY:

0.0000195

AC XY:

AN XY:

717974

show subpopulations

Gnomad4 AFR exome

AF:

0.0000301

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.000231

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000136

Gnomad4 OTH exome

AF:

0.0000502

GnomAD4 genome

AF:

0.0000329

AC:

AN:

151864

Hom.:

Cov.:

AF XY:

0.0000270

AC XY:

AN XY:

74178

show subpopulations

Gnomad4 AFR

AF:

0.0000484

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.000479

Alfa

AF:

0.000113

Hom.:

Bravo

AF:

0.0000567

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.0000546

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Sep 23, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.2185G>A (p.A729T) alteration is located in exon 13 (coding exon 13) of the ITIH5 gene. This alteration results from a G to A substitution at nucleotide position 2185, causing the alanine (A) at amino acid position 729 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.25

BayesDel_addAF

Benign

-0.10

BayesDel_noAF

Benign

-0.20

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.013

T;T

Eigen

Uncertain

0.49

Eigen_PC

Uncertain

0.45

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.95

D;D

M_CAP

Benign

0.042

MetaRNN

Uncertain

0.58

D;D

MetaSVM

Benign

-1.1

PrimateAI

Uncertain

0.57

Sift4G

Benign

0.31

T;T

Vest4

0.55

MutPred

0.47

Gain of phosphorylation at A729 (P = 0.0241);.;

MVP

0.54

ClinPred

0.91

GERP RS

5.8

gMVP

0.48

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