3-52824510-T-C

Variant names:

• chr3-52824510-T-C
• rs150647947
• NM_002218.5:c.932A>G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_002218.5(ITIH4):​c.932A>G​(p.Asn311Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,826 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: ITIH4 NM_002218.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.913

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]

ENSG00000243696 (HGNC:):

ITIH4-AS1 (HGNC:40310): (ITIH4 antisense RNA 1)

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.41075093).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ITIH4	NM_002218.5	c.932A>G	p.Asn311Ser	missense_variant	Exon 8 of 24	ENST00000266041.9	NP_002209.2
ITIH4	NM_001166449.2	c.932A>G	p.Asn311Ser	missense_variant	Exon 8 of 22		NP_001159921.1
ITIH4-AS1	NR_046615.1	n.285+173T>C		intron_variant	Intron 2 of 2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ITIH4	ENST00000266041.9	c.932A>G	p.Asn311Ser	missense_variant	Exon 8 of 24	1	NM_002218.5	ENSP00000266041.4
ENSG00000243696	ENST00000468472.1	n.*1064A>G		non_coding_transcript_exon_variant	Exon 13 of 24	2		ENSP00000422253.1
ENSG00000243696	ENST00000468472.1	n.*1064A>G		3_prime_UTR_variant	Exon 13 of 24	2		ENSP00000422253.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461826 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 727226

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.068
BayesDel_addAF	Benign	-0.082	T
BayesDel_noAF	Benign	-0.36
CADD	Benign	18
DANN	Uncertain	0.98
DEOGEN2	Uncertain	0.69	D;T;.
Eigen	Benign	-0.26
Eigen_PC	Benign	-0.28
FATHMM_MKL	Benign	0.71	D
LIST_S2	Benign	0.78	T;T;T
M_CAP	Uncertain	0.098	D
MetaRNN	Benign	0.41	T;T;T
MetaSVM	Benign	-0.70	T
MutationAssessor	Benign	1.8	L;.;L
PrimateAI	Benign	0.40	T
PROVEAN	Uncertain	-4.3	D;D;D
REVEL	Benign	0.26
Sift	Benign	0.042	D;D;D
Sift4G	Benign	0.072	T;T;T
Polyphen		0.53	P;P;.
Vest4		0.36
MutPred		0.64		Loss of sheet (P = 0.1158);Loss of sheet (P = 0.1158);Loss of sheet (P = 0.1158);
MVP		0.77
MPC		0.83
ClinPred		0.67	D
GERP RS		2.6
Varity_R		0.15
gMVP		0.43

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

Other links and lift over

dbSNP: rs150647947; hg19: chr3-52858526;