3-52818522-G-T

Variant summary

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

The NM_002218.5(ITIH4):​c.2092C>A​(p.Pro698Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.264 in 1,601,242 control chromosomes in the GnomAD database, including 58,684 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (no stars). Another nucleotide change resulting in same amino acid change has been previously reported as Likely benignin UniProt.

Frequency

Genomes: 𝑓 0.27 ( 5851 hom., cov: 32)
Exomes 𝑓: 0.26 ( 52833 hom. )

Consequence

ITIH4
NM_002218.5 missense

Scores

1
17

Clinical Significance

Benign no assertion criteria provided B:1

Conservation

PhyloP100: -0.330
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 (MetaRNN=3.5569072E-4).
BP6
Variant 3-52818522-G-T is Benign according to our data. Variant chr3-52818522-G-T is described in ClinVar as [Benign]. Clinvar id is 3059528.Status of the report is no_assertion_criteria_provided, 0 stars.
BA1
GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.393 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ITIH4NM_002218.5 linkuse as main transcriptc.2092C>A p.Pro698Thr missense_variant 18/24 ENST00000266041.9 NP_002209.2 Q14624-1B7ZKJ8B2RMS9
ITIH4NM_001166449.2 linkuse as main transcriptc.2002C>A p.Pro668Thr missense_variant 16/22 NP_001159921.1 Q14624-3B7ZKJ8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ITIH4ENST00000266041.9 linkuse as main transcriptc.2092C>A p.Pro698Thr missense_variant 18/241 NM_002218.5 ENSP00000266041.4 Q14624-1
ENSG00000243696ENST00000468472.1 linkuse as main transcriptn.*3462C>A non_coding_transcript_exon_variant 20/242 ENSP00000422253.1 D6R8Y8
ENSG00000243696ENST00000468472.1 linkuse as main transcriptn.*3462C>A 3_prime_UTR_variant 20/242 ENSP00000422253.1 D6R8Y8

Frequencies

GnomAD3 genomes
AF:
0.269
AC:
40896
AN:
151830
Hom.:
5854
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.213
Gnomad AMI
AF:
0.447
Gnomad AMR
AF:
0.402
Gnomad ASJ
AF:
0.328
Gnomad EAS
AF:
0.318
Gnomad SAS
AF:
0.139
Gnomad FIN
AF:
0.280
Gnomad MID
AF:
0.275
Gnomad NFE
AF:
0.272
Gnomad OTH
AF:
0.275
GnomAD3 exomes
AF:
0.281
AC:
64561
AN:
229774
Hom.:
10104
AF XY:
0.267
AC XY:
33212
AN XY:
124372
show subpopulations
Gnomad AFR exome
AF:
0.209
Gnomad AMR exome
AF:
0.488
Gnomad ASJ exome
AF:
0.329
Gnomad EAS exome
AF:
0.300
Gnomad SAS exome
AF:
0.126
Gnomad FIN exome
AF:
0.286
Gnomad NFE exome
AF:
0.260
Gnomad OTH exome
AF:
0.280
GnomAD4 exome
AF:
0.264
AC:
382228
AN:
1449294
Hom.:
52833
Cov.:
34
AF XY:
0.259
AC XY:
186570
AN XY:
719900
show subpopulations
Gnomad4 AFR exome
AF:
0.205
Gnomad4 AMR exome
AF:
0.473
Gnomad4 ASJ exome
AF:
0.335
Gnomad4 EAS exome
AF:
0.346
Gnomad4 SAS exome
AF:
0.129
Gnomad4 FIN exome
AF:
0.278
Gnomad4 NFE exome
AF:
0.263
Gnomad4 OTH exome
AF:
0.255
GnomAD4 genome
AF:
0.269
AC:
40909
AN:
151948
Hom.:
5851
Cov.:
32
AF XY:
0.270
AC XY:
20052
AN XY:
74268
show subpopulations
Gnomad4 AFR
AF:
0.212
Gnomad4 AMR
AF:
0.402
Gnomad4 ASJ
AF:
0.328
Gnomad4 EAS
AF:
0.317
Gnomad4 SAS
AF:
0.139
Gnomad4 FIN
AF:
0.280
Gnomad4 NFE
AF:
0.272
Gnomad4 OTH
AF:
0.277
Alfa
AF:
0.265
Hom.:
10564
Bravo
AF:
0.279
TwinsUK
AF:
0.248
AC:
918
ALSPAC
AF:
0.260
AC:
1002
ESP6500AA
AF:
0.219
AC:
965
ESP6500EA
AF:
0.266
AC:
2288
ExAC
AF:
0.255
AC:
30789
Asia WGS
AF:
0.245
AC:
848
AN:
3478

ClinVar

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

Submissions by phenotype

ITIH4-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesOct 18, 2019This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.071
BayesDel_addAF
Benign
-0.71
T
BayesDel_noAF
Benign
-0.65
CADD
Benign
0.41
DANN
Benign
0.74
DEOGEN2
Benign
0.38
T;T;.
Eigen
Benign
-0.84
Eigen_PC
Benign
-1.0
FATHMM_MKL
Benign
0.039
N
LIST_S2
Benign
0.35
T;T;T
MetaRNN
Benign
0.00036
T;T;T
MetaSVM
Benign
-0.95
T
MutationAssessor
Benign
1.5
L;.;.
PrimateAI
Benign
0.22
T
PROVEAN
Benign
-1.6
N;N;N
REVEL
Benign
0.098
Sift
Uncertain
0.017
D;D;T
Sift4G
Benign
0.15
T;T;D
Polyphen
0.011
B;B;.
Vest4
0.052
MPC
0.31
ClinPred
0.012
T
GERP RS
1.6
Varity_R
0.094
gMVP
0.31

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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: rs4687657; hg19: chr3-52852538; COSMIC: COSV56574158; COSMIC: COSV56574158; API