19-35903787-G-A

Variant names:

• chr19-35903787-G-A
• rs748000900
• NM_014266.4:c.125G>A

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The NM_014266.4(HCST):​c.125G>A​(p.Cys42Tyr) variant causes a missense change. The variant allele was found at a frequency of 0.00000558 in 1,614,006 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. C42R) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000055 (0 hom.)
• Consequence: HCST NM_014266.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.84
• Publications: 1 publications found

Genes affected

HCST (HGNC:16977): (hematopoietic cell signal transducer) This gene encodes a transmembrane signaling adaptor that contains a YxxM motif in its cytoplasmic domain. The encoded protein may form part of the immune recognition receptor complex with the C-type lectin-like receptor NKG2D. As part of this receptor complex, this protein may activate phosphatidylinositol 3-kinase dependent signaling pathways through its intracytoplasmic YxxM motif. This receptor complex may have a role in cell survival and proliferation by activation of NK and T cell responses. Alternative splicing results in two transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]

ENSG00000280194 (HGNC:):

ACMG classification

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.957

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014266.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HCST	NM_014266.4	MANE Select	c.125G>A	p.Cys42Tyr	missense	Exon 3 of 4	NP_055081.1	Q9UBK5-1
	HCST	NM_001007469.2		c.125G>A	p.Cys42Tyr	missense	Exon 3 of 4	NP_001007470.1	Q9UBK5-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HCST	ENST00000246551.9	TSL:1 MANE Select	c.125G>A	p.Cys42Tyr	missense	Exon 3 of 4	ENSP00000246551.3	Q9UBK5-1
	HCST	ENST00000437550.2	TSL:1	c.125G>A	p.Cys42Tyr	missense	Exon 3 of 4	ENSP00000400516.1	Q9UBK5-2
	HCST	ENST00000864004.1		c.125G>A	p.Cys42Tyr	missense	Exon 3 of 4	ENSP00000534063.1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152258 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000192

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000120 AC: 3 AN: 250882 AF XY: 0.0000147

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000544

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000547 AC: 8 AN: 1461748 Hom.: 0 Cov.: 31 AF XY: 0.00000688 AC XY: 5 AN XY: 727180

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.00 AC: 0 AN: 44720

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26128

East Asian (EAS) AF: 0.000101 AC: 4 AN: 39700

South Asian (SAS) AF: 0.0000348 AC: 3 AN: 86254

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53328

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111986

Other (OTH) AF: 0.00 AC: 0 AN: 60388

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152258 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74382

African (AFR) AF: 0.00 AC: 0 AN: 41470

American (AMR) AF: 0.00 AC: 0 AN: 15284

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.000192 AC: 1 AN: 5204

South Asian (SAS) AF: 0.00 AC: 0 AN: 4832

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10624

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68052

Other (OTH) AF: 0.00 AC: 0 AN: 2094

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000151

ExAC AF: 0.0000165 AC: 2

Asia WGS AF: 0.00173 AC: 6 AN: 3478

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.69
BayesDel_addAF	Uncertain	0.13	D
BayesDel_noAF	Uncertain	0.12
CADD	Pathogenic	28
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.56	D
Eigen	Uncertain	0.55
Eigen_PC	Uncertain	0.49
FATHMM_MKL	Benign	0.67	D
LIST_S2	Benign	0.70	T
M_CAP	Benign	0.021	T
MetaRNN	Pathogenic	0.96	D
MetaSVM	Uncertain	-0.092	T
PhyloP100		3.8
PrimateAI	Benign	0.43	T
PROVEAN	Pathogenic	-9.3	D
REVEL	Uncertain	0.61
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.86
MutPred		0.85		Gain of glycosylation at S40 (P = 0.1222)
MVP		0.33
MPC		1.8
ClinPred		1.0	D
GERP RS		3.6
Varity_R		0.93
gMVP		0.92
Mutation Taster		=75/25	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.060		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs748000900; hg19: chr19-36394689;