rs753269427

Positions:

• chr12-112454578-C-G
• chr12-112454578-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP2

The ENST00000351677.7(PTPN11):​c.540C>G​(p.Asp180Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. 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. D180N) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: PTPN11 ENST00000351677.7 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.347

Genes affected

PTPN11 (HGNC:9644): (protein tyrosine phosphatase non-receptor type 11) The protein encoded by this gene is a member of the protein tyrosine phosphatase (PTP) family. PTPs are known to be signaling molecules that regulate a variety of cellular processes including cell growth, differentiation, mitotic cycle, and oncogenic transformation. This PTP contains two tandem Src homology-2 domains, which function as phospho-tyrosine binding domains and mediate the interaction of this PTP with its substrates. This PTP is widely expressed in most tissues and plays a regulatory role in various cell signaling events that are important for a diversity of cell functions, such as mitogenic activation, metabolic control, transcription regulation, and cell migration. Mutations in this gene are a cause of Noonan syndrome as well as acute myeloid leukemia. [provided by RefSeq, Aug 2016]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), PTPN11. . Gene score misZ 3.1293 (greater than the threshold 3.09). Trascript score misZ 4.9438 (greater than threshold 3.09). GenCC has associacion of gene with Noonan syndrome and Noonan-related syndrome, Noonan syndrome with multiple lentigines, metachondromatosis, Noonan syndrome 1, Noonan syndrome, cardiofaciocutaneous syndrome, LEOPARD syndrome 1, Costello syndrome.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PTPN11	NM_002834.5	c.540C>G	p.Asp180Glu	missense_variant	5/16	ENST00000351677.7	NP_002825.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PTPN11	ENST00000351677.7	c.540C>G	p.Asp180Glu	missense_variant	5/16	1	NM_002834.5	ENSP00000340944	A1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.99
CardioboostCm	Uncertain	0.16
BayesDel_addAF	Pathogenic	0.19	D
BayesDel_noAF	Uncertain	0.040
CADD	Benign	8.1
DANN	Uncertain	0.99
DEOGEN2	Pathogenic	0.84	.;.;.;D
Eigen	Benign	-0.43
Eigen_PC	Benign	-0.46
FATHMM_MKL	Benign	0.74	D
LIST_S2	Uncertain	0.93	D;D;D;D
M_CAP	Benign	0.061	D
MetaRNN	Uncertain	0.71	D;D;D;D
MetaSVM	Benign	-0.83	T
MutationAssessor	Benign	1.0	L;L;.;L
MutationTaster	Benign	1.0	D;D
PrimateAI	Pathogenic	0.83	D
PROVEAN	Uncertain	-2.9	D;D;.;.
REVEL	Uncertain	0.58
Sift	Uncertain	0.011	D;T;.;.
Sift4G	Benign	0.13	T;T;.;T
Polyphen		0.37	B;B;.;.
Vest4		0.71
MutPred		0.60		Loss of sheet (P = 0.0357);Loss of sheet (P = 0.0357);Loss of sheet (P = 0.0357);Loss of sheet (P = 0.0357);
MVP		0.97
MPC		1.7
ClinPred		0.96	D
GERP RS		1.6
Varity_R		0.87
gMVP		0.60

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: chr12-112892382;