chr2-190995151-T-A

Variant names:

• chr2-190995151-T-A
• NM_007315.4:c.854A>T

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM1 PM2 PM5 PP2

The NM_007315.4(STAT1):​c.854A>T​(p.Gln285Leu) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Q285R) has been classified as Pathogenic.

• Frequency: Genomes: not found (cov: 31)
• Consequence: STAT1 NM_007315.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 6.13

Genes affected

STAT1 (HGNC:11362): (signal transducer and activator of transcription 1) The protein encoded by this gene is a member of the STAT protein family. In response to cytokines and growth factors, STAT family members are phosphorylated by the receptor associated kinases, and then form homo- or heterodimers that translocate to the cell nucleus where they act as transcription activators. The protein encoded by this gene can be activated by various ligands including interferon-alpha, interferon-gamma, EGF, PDGF and IL6. This protein mediates the expression of a variety of genes, which is thought to be important for cell viability in response to different cell stimuli and pathogens. The protein plays an important role in immune responses to viral, fungal and mycobacterial pathogens. Mutations in this gene are associated with Immunodeficiency 31B, 31A, and 31C. [provided by RefSeq, Jun 2020]

ACMG classification

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

• PM1: In a coiled_coil_region (size 181) in uniprot entity STAT1_HUMAN there are 33 pathogenic changes around while only 1 benign (97%) in NM_007315.4
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr2-190995151-T-C is described in Lovd as [Pathogenic].
• PP2: Missense variant in the STAT1 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 64 curated pathogenic missense variants (we use a threshold of 10). The gene has 19 curated benign missense variants. Gene score misZ: 5.1492 (above the threshold of 3.09). Trascript score misZ: 7.0181 (above the threshold of 3.09). GenCC associations: The gene is linked to Mendelian susceptibility to mycobacterial diseases due to partial STAT1 deficiency, autoimmune enteropathy and endocrinopathy - susceptibility to chronic infections syndrome, immunodeficiency 31B.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
STAT1	NM_007315.4	c.854A>T	p.Gln285Leu	missense_variant	Exon 10 of 25	ENST00000361099.8	NP_009330.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
STAT1	ENST00000361099.8	c.854A>T	p.Gln285Leu	missense_variant	Exon 10 of 25	1	NM_007315.4	ENSP00000354394.4

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.17
BayesDel_addAF	Uncertain	0.15	D
BayesDel_noAF	Uncertain	-0.020
CADD	Benign	22
DANN	Uncertain	0.99
DEOGEN2	Pathogenic	0.90	D;D;.;.
Eigen	Uncertain	0.27
Eigen_PC	Uncertain	0.36
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Uncertain	0.86	.;D;D;D
M_CAP	Uncertain	0.23	D
MetaRNN	Uncertain	0.63	D;D;D;D
MetaSVM	Benign	-0.68	T
MutationAssessor	Uncertain	2.2	M;M;M;.
PrimateAI	Uncertain	0.61	T
PROVEAN	Uncertain	-2.7	D;D;D;D
REVEL	Uncertain	0.30
Sift	Benign	0.55	T;T;T;T
Sift4G	Benign	0.77	T;T;T;T
Polyphen		0.0020	B;B;P;.
Vest4		0.65
MutPred		0.47		Loss of disorder (P = 0.0488);Loss of disorder (P = 0.0488);Loss of disorder (P = 0.0488);.;
MVP		0.82
MPC		1.3
ClinPred		0.80	D
GERP RS		5.7
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.41
gMVP		0.88

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: chr2-191859877;