chr17-42300825-A-C

Position:

• chr17-42300825-A-C

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_Strong BS2

The NM_001288718.2(STAT5A):​c.944A>C​(p.Glu315Ala) variant causes a missense change. The variant allele was found at a frequency of 0.0000918 in 1,612,206 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000053 (0 hom., cov: 31)
  • Exomes 𝑓: 0.000096 (1 hom.)
• Consequence: STAT5A NM_001288718.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.93

Genes affected

STAT5A (HGNC:11366): (signal transducer and activator of transcription 5A) The protein encoded by this gene is a member of the STAT family of transcription factors. 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. This protein is activated by, and mediates the responses of many cell ligands, such as IL2, IL3, IL7 GM-CSF, erythropoietin, thrombopoietin, and different growth hormones. Activation of this protein in myeloma and lymphoma associated with a TEL/JAK2 gene fusion is independent of cell stimulus and has been shown to be essential for tumorigenesis. The mouse counterpart of this gene is found to induce the expression of BCL2L1/BCL-X(L), which suggests the antiapoptotic function of this gene in cells. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Dec 2013]

ACMG classification

Verdict is Benign. Variant got -8 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.03731647).
• BS2: High AC in GnomAd4 at 8 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
STAT5A	NM_001288718.2	c.944A>C	p.Glu315Ala	missense_variant	8/19	ENST00000590949.6	NP_001275647.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
STAT5A	ENST00000590949.6	c.944A>C	p.Glu315Ala	missense_variant	8/19	1	NM_001288718.2	ENSP00000468749	P4

Frequencies

GnomAD3 genomes AF: 0.0000527 AC: 8 AN: 151942 Hom.: 0 Cov.: 31

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00166

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.000167 AC: 41 AN: 245232 Hom.: 0 AF XY: 0.000203 AC XY: 27 AN XY: 133272

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00128

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.000336

GnomAD4 exome AF: 0.0000959 AC: 140 AN: 1460146 Hom.: 1 Cov.: 35 AF XY: 0.000132 AC XY: 96 AN XY: 726266

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000252

Gnomad4 SAS exome AF: 0.00144

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 9.00e-7

Gnomad4 OTH exome AF: 0.000232

GnomAD4 genome AF: 0.0000526 AC: 8 AN: 152060 Hom.: 0 Cov.: 31 AF XY: 0.0000673 AC XY: 5 AN XY: 74346

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00166

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00

Bravo AF: 0.00000378

ExAC AF: 0.000157 AC: 19

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 01, 2022

The c.944A>C (p.E315A) alteration is located in exon 9 (coding exon 7) of the STAT5A gene. This alteration results from a A to C substitution at nucleotide position 944, causing the glutamic acid (E) at amino acid position 315 to be replaced by an alanine (A). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.15
BayesDel_addAF	Benign	-0.36	T
BayesDel_noAF	Benign	-0.32
CADD	Uncertain	24
DANN	Benign	0.96
DEOGEN2	Uncertain	0.62	D;D;.;T
Eigen	Benign	-0.24
Eigen_PC	Benign	-0.090
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.92	.;D;D;D
M_CAP	Benign	0.040	D
MetaRNN	Benign	0.037	T;T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.3	L;L;.;.
MutationTaster	Benign	1.0	D;D;D;D;D
PrimateAI	Pathogenic	0.80	T
PROVEAN	Benign	-1.6	N;.;N;.
REVEL	Benign	0.10
Sift	Benign	0.21	T;.;T;.
Sift4G	Benign	0.50	T;T;T;T
Polyphen		0.0050	B;B;.;.
Vest4		0.47
MutPred		0.44		Loss of solvent accessibility (P = 0.1434);Loss of solvent accessibility (P = 0.1434);.;Loss of solvent accessibility (P = 0.1434);
MVP		0.62
MPC		2.1
ClinPred		0.084	T
GERP RS		4.4
Varity_R		0.11
gMVP		0.37

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: rs576124844; hg19: chr17-40452843;