rs3821831

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BA1

The NM_002218.5(ITIH4):​c.2077+8G>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.343 in 1,613,340 control chromosomes in the GnomAD database, including 100,256 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (no stars).

Frequency

Genomes: 𝑓 0.29 ( 7022 hom., cov: 33)
Exomes 𝑓: 0.35 ( 93234 hom. )

Consequence

ITIH4
NM_002218.5 splice_region, intron

Scores

2
Splicing: ADA: 0.00007385
2

Clinical Significance

Benign no assertion criteria provided B:1

Conservation

PhyloP100: -1.86
Variant links:
Genes affected
ITIH4 (HGNC:6169): (inter-alpha-trypsin inhibitor heavy chain 4) The protein encoded by this gene is secreted into the blood, where it is cleaved by plasma kallikrein into two smaller forms. Expression of this gene has been detected only in liver, and it seems to be upregulated during surgical trauma. This gene is part of a cluster of similar genes on chromosome 3. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2009]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.97).
BP6
Variant 3-52819385-C-T is Benign according to our data. Variant chr3-52819385-C-T is described in ClinVar as [Benign]. Clinvar id is 9042.Status of the report is no_assertion_criteria_provided, 0 stars.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.37 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ITIH4NM_002218.5 linkuse as main transcriptc.2077+8G>A splice_region_variant, intron_variant ENST00000266041.9 NP_002209.2
ITIH4NM_001166449.2 linkuse as main transcriptc.1987+8G>A splice_region_variant, intron_variant NP_001159921.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ITIH4ENST00000266041.9 linkuse as main transcriptc.2077+8G>A splice_region_variant, intron_variant 1 NM_002218.5 ENSP00000266041 P2Q14624-1

Frequencies

GnomAD3 genomes
AF:
0.289
AC:
43892
AN:
152040
Hom.:
7021
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.186
Gnomad AMI
AF:
0.214
Gnomad AMR
AF:
0.228
Gnomad ASJ
AF:
0.310
Gnomad EAS
AF:
0.0776
Gnomad SAS
AF:
0.255
Gnomad FIN
AF:
0.345
Gnomad MID
AF:
0.402
Gnomad NFE
AF:
0.374
Gnomad OTH
AF:
0.291
GnomAD3 exomes
AF:
0.291
AC:
73103
AN:
250812
Hom.:
11935
AF XY:
0.298
AC XY:
40433
AN XY:
135576
show subpopulations
Gnomad AFR exome
AF:
0.179
Gnomad AMR exome
AF:
0.162
Gnomad ASJ exome
AF:
0.314
Gnomad EAS exome
AF:
0.0734
Gnomad SAS exome
AF:
0.266
Gnomad FIN exome
AF:
0.341
Gnomad NFE exome
AF:
0.377
Gnomad OTH exome
AF:
0.317
GnomAD4 exome
AF:
0.349
AC:
510070
AN:
1461182
Hom.:
93234
Cov.:
37
AF XY:
0.347
AC XY:
252402
AN XY:
726896
show subpopulations
Gnomad4 AFR exome
AF:
0.180
Gnomad4 AMR exome
AF:
0.170
Gnomad4 ASJ exome
AF:
0.315
Gnomad4 EAS exome
AF:
0.0688
Gnomad4 SAS exome
AF:
0.274
Gnomad4 FIN exome
AF:
0.346
Gnomad4 NFE exome
AF:
0.379
Gnomad4 OTH exome
AF:
0.330
GnomAD4 genome
AF:
0.288
AC:
43890
AN:
152158
Hom.:
7022
Cov.:
33
AF XY:
0.284
AC XY:
21120
AN XY:
74388
show subpopulations
Gnomad4 AFR
AF:
0.185
Gnomad4 AMR
AF:
0.228
Gnomad4 ASJ
AF:
0.310
Gnomad4 EAS
AF:
0.0776
Gnomad4 SAS
AF:
0.256
Gnomad4 FIN
AF:
0.345
Gnomad4 NFE
AF:
0.374
Gnomad4 OTH
AF:
0.290
Alfa
AF:
0.348
Hom.:
16891
Bravo
AF:
0.272
Asia WGS
AF:
0.165
AC:
577
AN:
3478
EpiCase
AF:
0.370
EpiControl
AF:
0.373

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Hypercholesterolemia, susceptibility to Benign:1
Benign, no assertion criteria providedliterature onlyOMIMJan 01, 2004- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.97
CADD
Benign
0.037
DANN
Benign
0.62

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000074
dbscSNV1_RF
Benign
0.016
SpliceAI score (max)
0.030
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.

Other links and lift over

dbSNP: rs3821831; hg19: chr3-52853401; COSMIC: COSV56571513; COSMIC: COSV56571513; API