19-55455691-C-G

Variant names:

• chr19-55455691-C-G
• NM_001136201.2:c.293G>C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001136201.2(ISOC2):​c.293G>C​(p.Arg98Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000206 in 1,458,460 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 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: 33)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: ISOC2 NM_001136201.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.425

Genes affected

ISOC2 (HGNC:26278): (isochorismatase domain containing 2) Involved in protein destabilization. Located in cytoplasm and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.23964357).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ISOC2	NM_001136201.2	c.293G>C	p.Arg98Pro	missense_variant	Exon 3 of 6	ENST00000425675.7	NP_001129673.1
ISOC2	NM_024710.3	c.293G>C	p.Arg98Pro	missense_variant	Exon 3 of 6		NP_078986.1
ISOC2	NM_001136202.2	c.139-361G>C		intron_variant	Intron 2 of 4		NP_001129674.1
ISOC2	XM_047439445.1	c.139-313G>C		intron_variant	Intron 2 of 4		XP_047295401.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ISOC2	ENST00000425675.7	c.293G>C	p.Arg98Pro	missense_variant	Exon 3 of 6	1	NM_001136201.2	ENSP00000401726.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000206 AC: 3 AN: 1458460 Hom.: 0 Cov.: 33 AF XY: 0.00000138 AC XY: 1 AN XY: 725038

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: 0.00000270

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.49
BayesDel_addAF	Benign	-0.11	T
BayesDel_noAF	Benign	-0.40
CADD	Benign	21
DANN	Uncertain	0.99
DEOGEN2	Benign	0.071	T;.;T;T
Eigen	Benign	-0.075
Eigen_PC	Benign	-0.093
FATHMM_MKL	Benign	0.71	D
LIST_S2	Benign	0.71	T;T;T;T
M_CAP	Benign	0.012	T
MetaRNN	Benign	0.24	T;T;T;T
MetaSVM	Benign	-0.97	T
MutationAssessor	Benign	1.1	L;L;.;.
PrimateAI	Benign	0.42	T
PROVEAN	Benign	-1.9	N;N;.;.
REVEL	Benign	0.10
Sift	Benign	0.27	T;T;.;.
Sift4G	Benign	0.29	T;T;.;.
Polyphen		0.98	D;P;.;.
Vest4		0.30
MutPred		0.49		Gain of glycosylation at R98 (P = 0.0347);Gain of glycosylation at R98 (P = 0.0347);Gain of glycosylation at R98 (P = 0.0347);Gain of glycosylation at R98 (P = 0.0347);
MVP		0.52
MPC		0.35
ClinPred		0.51	D
GERP RS		3.3
Varity_R		0.24
gMVP		0.85

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: chr19-55967058;