chr12-112502164-C-A

Variant names:

• chr12-112502164-C-A
• NM_002834.5:c.1620C>A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2 PP2 BP4_Moderate

The NM_002834.5(PTPN11):​c.1620C>A​(p.His540Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,300 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 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: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: PTPN11 NM_002834.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.36

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 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in the PTPN11 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 131 curated pathogenic missense variants (we use a threshold of 10). The gene has 13 curated benign missense variants. Gene score misZ: 3.1293 (above the threshold of 3.09). Trascript score misZ: 4.9438 (above the threshold of 3.09). GenCC associations: The gene is linked to Noonan syndrome and Noonan-related syndrome, Noonan syndrome with multiple lentigines, metachondromatosis, Noonan syndrome 1, Noonan syndrome, cardiofaciocutaneous syndrome, LEOPARD syndrome 1, Costello syndrome.
• BP4: Computational evidence support a benign effect (MetaRNN=0.103186995).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PTPN11	NM_002834.5	c.1620C>A	p.His540Gln	missense_variant	Exon 14 of 16	ENST00000351677.7	NP_002825.3
PTPN11	NM_001330437.2	c.1632C>A	p.His544Gln	missense_variant	Exon 14 of 16		NP_001317366.1
PTPN11	NM_001374625.1	c.1617C>A	p.His539Gln	missense_variant	Exon 14 of 16		NP_001361554.1
PTPN11	XM_011538613.3	c.1629C>A	p.His543Gln	missense_variant	Exon 14 of 16		XP_011536915.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PTPN11	ENST00000351677.7	c.1620C>A	p.His540Gln	missense_variant	Exon 14 of 16	1	NM_002834.5	ENSP00000340944.3
PTPN11	ENST00000635625.1	c.1632C>A	p.His544Gln	missense_variant	Exon 14 of 15	5		ENSP00000489597.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461300 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727014

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: 9.00e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.30
CardioboostCm	Uncertain	0.11
BayesDel_addAF	Benign	-0.21	T
BayesDel_noAF	Benign	-0.54
CADD	Benign	4.9
DANN	Benign	0.86
DEOGEN2	Benign	0.30	.;T
Eigen	Benign	-1.5
Eigen_PC	Benign	-1.5
FATHMM_MKL	Benign	0.14	N
LIST_S2	Benign	0.62	T;T
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.10	T;T
MetaSVM	Benign	-1.2	T
MutationAssessor	Benign	1.2	.;L
PrimateAI	Uncertain	0.73	T
PROVEAN	Benign	-0.43	N;.
REVEL	Benign	0.18
Sift	Benign	0.15	T;.
Sift4G	Benign	0.078	T;T
Polyphen		0.29	B;.
Vest4		0.42
MutPred		0.28		Gain of ubiquitination at K538 (P = 0.0568);.;
MVP		0.38
MPC		1.1
ClinPred		0.22	T
GERP RS		-6.5
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.16
gMVP		0.24

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: chr12-112939968;