Genetic Variant ITIH2:p.Ala159Ser (chr10-7717633-G-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_002216.3(ITIH2):c.475G>T(p.Ala159Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000958 in 1,460,958 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A159T) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

ITIH2
NM_002216.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.51

Publications

2 publications found

Variant links:

Genes affected

ITIH2 (HGNC:6167): (inter-alpha-trypsin inhibitor heavy chain 2) The inter-alpha-trypsin inhibitors (ITI) are a family of structurally related plasma serine protease inhibitors involved in extracellular matrix stabilization and in prevention of tumor metastasis. The ITI family contains multiple proteins made up of a light chain (see MIM 176870) and a variable number of heavy chains (Salier et al., 1987 [PubMed 2446322]; Himmelfarb et al., 2004 [PubMed 14744536]).[supplied by OMIM, Nov 2009]

ITIH2 links:

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ACMG classification

Classification was made for transcript

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=0.09768057).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ITIH2	NM_002216.3 link	c.475G>T	p.Ala159Ser	missense_variant	Exon 6 of 21	ENST00000358415.9	NP_002207.2	P19823

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
ITIH2	ENST00000358415.9 link	c.475G>T	p.Ala159Ser	missense_variant	Exon 6 of 21	1	NM_002216.3	ENSP00000351190.4	P19823
ITIH2	ENST00000379587.4 link	c.442G>T	p.Ala148Ser	missense_variant	Exon 5 of 20	5		ENSP00000368906.3	Q5T985
ITIH2	ENST00000429820.5 link	c.400G>T	p.Ala134Ser	missense_variant	Exon 5 of 7	3		ENSP00000388826.1	Q5T987
ITIH2	ENST00000480387.1 link	n.372G>T		non_coding_transcript_exon_variant	Exon 5 of 6	3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000318

AC:

AN:

251324

AF XY:

0.0000147

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000704

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000958

AC:

AN:

1460958

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

726618

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33472

American (AMR)

AF:

0.00

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26126

East Asian (EAS)

AF:

0.00

AC:

AN:

39668

South Asian (SAS)

AF:

0.00

AC:

AN:

86222

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53364

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5734

European-Non Finnish (NFE)

AF:

0.0000126

AC:

AN:

1111298

Other (OTH)

AF:

0.00

AC:

AN:

60358

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.471

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ExAC

AF:

0.0000576

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.068

BayesDel_addAF

Benign

-0.39

BayesDel_noAF

Benign

-0.61

CADD

Benign

8.2

(source)

DANN

Benign

0.77

DEOGEN2

Benign

0.0052

T;T;T

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.37

LIST_S2

Benign

0.64

T;T;T

M_CAP

Benign

0.012

MetaRNN

Benign

0.098

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.35

N;.;.

PhyloP100

1.5

PrimateAI

Benign

0.26

PROVEAN

Benign

0.18

N;N;N

REVEL

Benign

0.021

Sift

Benign

0.24

T;T;T

Sift4G

Benign

0.41

T;T;T

Polyphen

0.0090

B;.;.

Vest4

0.15

MutPred

0.39

Gain of disorder (P = 0.0231);.;.;

MVP

0.19

MPC

0.098

ClinPred

0.047

GERP RS

-0.69

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.046

gMVP

0.20

Mutation Taster

=97/3

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over