9-83969432-T-C

Variant names:

• chr9-83969432-T-C
• NM_031263.4:c.1370A>G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2 PP2 BP4_Moderate

The NM_031263.4(HNRNPK):​c.1370A>G​(p.Gln457Arg) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: HNRNPK NM_031263.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.66

Genes affected

HNRNPK (HGNC:5044): (heterogeneous nuclear ribonucleoprotein K) This gene belongs to the subfamily of ubiquitously expressed heterogeneous nuclear ribonucleoproteins (hnRNPs). The hnRNPs are RNA binding proteins and they complex with heterogeneous nuclear RNA (hnRNA). These proteins are associated with pre-mRNAs in the nucleus and appear to influence pre-mRNA processing and other aspects of mRNA metabolism and transport. While all of the hnRNPs are present in the nucleus, some seem to shuttle between the nucleus and the cytoplasm. The hnRNP proteins have distinct nucleic acid binding properties. The protein encoded by this gene is located in the nucleoplasm and has three repeats of KH domains that binds to RNAs. It is distinct among other hnRNP proteins in its binding preference; it binds tenaciously to poly(C). This protein is also thought to have a role during cell cycle progession. Several alternatively spliced transcript variants have been described for this gene, however, not all of them are fully characterized. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in the HNRNPK gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 15 curated pathogenic missense variants (we use a threshold of 10). The gene has 4 curated benign missense variants. Gene score misZ: 3.9922 (above the threshold of 3.09). Trascript score misZ: 3.2967 (above the threshold of 3.09). GenCC associations: The gene is linked to Au-Kline syndrome, neurodevelopmental disorder-craniofacial dysmorphism-cardiac defect-hip dysplasia syndrome.
• BP4: Computational evidence support a benign effect (MetaRNN=0.23965663).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HNRNPK	NM_031263.4	c.1370A>G	p.Gln457Arg	missense_variant	Exon 17 of 17	ENST00000376263.8	NP_112553.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HNRNPK	ENST00000376263.8	c.1370A>G	p.Gln457Arg	missense_variant	Exon 17 of 17	1	NM_031263.4	ENSP00000365439.3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 27

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Jun 10, 2022

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Benign	-0.068	T
BayesDel_noAF	Benign	-0.34
CADD	Uncertain	25
DANN	Benign	0.97
Eigen	Benign	-0.081
Eigen_PC	Benign	0.12
FATHMM_MKL	Uncertain	0.97	D
LIST_S2	Uncertain	0.94	.;D
M_CAP	Benign	0.0056	T
MetaRNN	Benign	0.24	T;T
MetaSVM	Benign	-0.94	T
PrimateAI	Pathogenic	0.80	T
PROVEAN	Benign	-0.81	N;N
REVEL	Benign	0.081
Sift	Benign	0.080	T;T
Sift4G	Benign	0.20	T;T
Polyphen		0.12	B;B
Vest4		0.40
MutPred		0.34		Loss of ubiquitination at K456 (P = 0.0724);Loss of ubiquitination at K456 (P = 0.0724);
MVP		0.82
MPC		1.2
ClinPred		0.81	D
GERP RS		5.2
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
gMVP		0.93

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr9-86584347;