9-13107016-A-G

Variant names:

• chr9-13107016-A-G
• rs1305570451
• NM_001378778.1:c.6162T>C

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_001378778.1(MPDZ):​c.6162T>C​(p.Val2054Val) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. V2054V) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: MPDZ NM_001378778.1 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.779
• Publications: 0 publications found

Genes affected

MPDZ (HGNC:7208): (multiple PDZ domain crumbs cell polarity complex component) The protein encoded by this gene has multiple PDZ domains, which are hallmarks of protein-protein interactions. The encoded protein is known to interact with the HTR2C receptor and may cause it to clump at the cell surface. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2015]

MPDZ Gene-Disease associations (from GenCC):

• hydrocephalus, nonsyndromic, autosomal recessive 2

  Inheritance: AR Classification: STRONG, MODERATE, LIMITED Submitted by: Laboratory for Molecular Medicine, Ambry Genetics, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, G2P

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.7).
• BP7: Synonymous conserved (PhyloP=-0.779 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001378778.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MPDZ	NM_001378778.1	MANE Select	c.6162T>C	p.Val2054Val	synonymous	Exon 47 of 47	NP_001365707.1	O75970-1
	MPDZ	NM_001375413.1		c.6261T>C	p.Val2087Val	synonymous	Exon 48 of 48	NP_001362342.1
	MPDZ	NM_001330637.2		c.6162T>C	p.Val2054Val	synonymous	Exon 47 of 47	NP_001317566.1	O75970-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MPDZ	ENST00000319217.12	TSL:5 MANE Select	c.6162T>C	p.Val2054Val	synonymous	Exon 47 of 47	ENSP00000320006.7	O75970-1
	MPDZ	ENST00000541718.5	TSL:1	c.6075T>C	p.Val2025Val	synonymous	Exon 46 of 46	ENSP00000439807.1	O75970-2
	MPDZ	ENST00000447879.6	TSL:1	c.6063T>C	p.Val2021Val	synonymous	Exon 46 of 46	ENSP00000415208.1	O75970-3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.70
CADD	Benign	2.0
DANN	Benign	0.67
PhyloP100		-0.78

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: rs1305570451; hg19: chr9-13107015;