10-7717768-C-T

Variant summary

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

The NM_002216.3(ITIH2):​c.610C>T​(p.Arg204Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000217 in 1,610,808 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R204G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

ITIH2
NM_002216.3 missense

Scores

1
6
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0320

Publications

7 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]

Genome browser will be placed here

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=0.2595644).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ITIH2NM_002216.3 linkc.610C>T p.Arg204Trp missense_variant Exon 6 of 21 ENST00000358415.9 NP_002207.2 P19823

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ITIH2ENST00000358415.9 linkc.610C>T p.Arg204Trp missense_variant Exon 6 of 21 1 NM_002216.3 ENSP00000351190.4 P19823
ITIH2ENST00000379587.4 linkc.577C>T p.Arg193Trp missense_variant Exon 5 of 20 5 ENSP00000368906.3 Q5T985
ITIH2ENST00000429820.5 linkc.535C>T p.Arg179Trp missense_variant Exon 5 of 7 3 ENSP00000388826.1 Q5T987
ITIH2ENST00000480387.1 linkn.507C>T non_coding_transcript_exon_variant Exon 5 of 6 3

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
152154
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000386
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000279
AC:
7
AN:
251262
AF XY:
0.00000736
show subpopulations
Gnomad AFR exome
AF:
0.000246
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000185
AC:
27
AN:
1458654
Hom.:
0
Cov.:
32
AF XY:
0.0000262
AC XY:
19
AN XY:
725262
show subpopulations
African (AFR)
AF:
0.000120
AC:
4
AN:
33390
American (AMR)
AF:
0.0000448
AC:
2
AN:
44684
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26128
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39638
South Asian (SAS)
AF:
0.0000581
AC:
5
AN:
86130
European-Finnish (FIN)
AF:
0.0000187
AC:
1
AN:
53406
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4390
European-Non Finnish (NFE)
AF:
0.0000117
AC:
13
AN:
1110714
Other (OTH)
AF:
0.0000332
AC:
2
AN:
60174
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.462
Heterozygous variant carriers
0
2
4
7
9
11
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000526
AC:
8
AN:
152154
Hom.:
0
Cov.:
32
AF XY:
0.0000807
AC XY:
6
AN XY:
74326
show subpopulations
African (AFR)
AF:
0.000121
AC:
5
AN:
41450
American (AMR)
AF:
0.00
AC:
0
AN:
15276
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.000386
AC:
2
AN:
5178
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68018
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.556
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000658
Hom.:
0
Bravo
AF:
0.0000680
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000330
AC:
4

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Oct 03, 2022
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.610C>T (p.R204W) alteration is located in exon 6 (coding exon 6) of the ITIH2 gene. This alteration results from a C to T substitution at nucleotide position 610, causing the arginine (R) at amino acid position 204 to be replaced by a tryptophan (W). 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
0.19
BayesDel_addAF
Benign
-0.28
T
BayesDel_noAF
Benign
-0.28
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.29
T;T;T
Eigen
Benign
-0.022
Eigen_PC
Benign
-0.22
FATHMM_MKL
Benign
0.30
N
LIST_S2
Uncertain
0.97
D;D;D
M_CAP
Benign
0.041
D
MetaRNN
Benign
0.26
T;T;T
MetaSVM
Benign
-0.94
T
MutationAssessor
Uncertain
2.6
M;.;.
PhyloP100
0.032
PrimateAI
Uncertain
0.50
T
PROVEAN
Pathogenic
-4.7
D;D;D
REVEL
Benign
0.18
Sift
Uncertain
0.0010
D;D;D
Sift4G
Uncertain
0.0020
D;D;D
Polyphen
1.0
D;.;.
Vest4
0.75
MVP
0.39
MPC
0.44
ClinPred
0.80
D
GERP RS
2.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.45
gMVP
0.71
Mutation Taster
=81/19
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

Publications

Other links and lift over

dbSNP: rs375764473; hg19: chr10-7759731; COSMIC: COSV64433016; COSMIC: COSV64433016; API