12-89351811-A-G

Variant names:

• chr12-89351811-A-G
• rs587776978
• NM_001946.4:c.229T>C

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001946.4(DUSP6):​c.229T>C​(p.Phe77Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,458,792 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. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. F77I) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: DUSP6 NM_001946.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.91
• Publications: 0 publications found

Genes affected

DUSP6 (HGNC:3072): (dual specificity phosphatase 6) The protein encoded by this gene is a member of the dual specificity protein phosphatase subfamily. These phosphatases inactivate their target kinases by dephosphorylating both the phosphoserine/threonine and phosphotyrosine residues. They negatively regulate members of the mitogen-activated protein (MAP) kinase superfamily (MAPK/ERK, SAPK/JNK, p38), which are associated with cellular proliferation and differentiation. Different members of the family of dual specificity phosphatases show distinct substrate specificities for various MAP kinases, different tissue distribution and subcellular localization, and different modes of inducibility of their expression by extracellular stimuli. This gene product inactivates ERK2, is expressed in a variety of tissues with the highest levels in heart and pancreas, and unlike most other members of this family, is localized in the cytoplasm. Mutations in this gene have been associated with congenital hypogonadotropic hypogonadism. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Jan 2014]

DUSP6 Gene-Disease associations (from GenCC):

• hypogonadotropic hypogonadism

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• Kallmann syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• hypogonadotropic hypogonadism 19 with or without anosmia

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)

ENSG00000274021 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.112330884).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001946.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DUSP6	NM_001946.4	MANE Select	c.229T>C	p.Phe77Leu	missense	Exon 1 of 3	NP_001937.2
	DUSP6	NM_022652.4		c.229T>C	p.Phe77Leu	missense	Exon 1 of 2	NP_073143.2
	POC1B-DUSP6	NM_001425794.1		c.1114-2250T>C		intron	N/A	NP_001412723.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DUSP6	ENST00000279488.8	TSL:1 MANE Select	c.229T>C	p.Phe77Leu	missense	Exon 1 of 3	ENSP00000279488.6
	DUSP6	ENST00000308385.6	TSL:1	c.229T>C	p.Phe77Leu	missense	Exon 1 of 2	ENSP00000307835.6
	DUSP6	ENST00000548755.1	TSL:4	c.229T>C	p.Phe77Leu	missense	Exon 2 of 2	ENSP00000446858.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1458792 Hom.: 0 Cov.: 33 AF XY: 0.00000138 AC XY: 1 AN XY: 725620

African (AFR) AF: 0.00 AC: 0 AN: 33466

American (AMR) AF: 0.00 AC: 0 AN: 44498

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26046

East Asian (EAS) AF: 0.00 AC: 0 AN: 39634

South Asian (SAS) AF: 0.0000233 AC: 2 AN: 86014

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 51764

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5764

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111328

Other (OTH) AF: 0.00 AC: 0 AN: 60278

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.49
BayesDel_addAF	Benign	-0.21	T
BayesDel_noAF	Benign	-0.54
CADD	Benign	23
DANN	Benign	0.91
DEOGEN2	Benign	0.052	T
Eigen	Benign	-0.33
Eigen_PC	Benign	-0.089
FATHMM_MKL	Uncertain	0.77	D
LIST_S2	Benign	0.82	T
M_CAP	Benign	0.0037	T
MetaRNN	Benign	0.11	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	-0.32	N
PhyloP100		1.9
PrimateAI	Uncertain	0.68	T
PROVEAN	Benign	1.8	N
REVEL	Benign	0.045
Sift	Benign	0.61	T
Sift4G	Benign	0.56	T
Polyphen		0.0	B
Vest4		0.065
MutPred		0.45		Gain of catalytic residue at R79 (P = 0.0814)
MVP		0.28
MPC		0.83
ClinPred		0.58	D
GERP RS		5.2
Varity_R		0.20
gMVP		0.45
Mutation Taster		=77/23	polymorphism

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

Other links and lift over

dbSNP: rs587776978; hg19: chr12-89745588;