rs1432642106

Variant names:

• chr9-13107049-C-A
• rs1432642106
• NM_001378778.1:c.6129G>T

Your query was ambiguous. Multiple possible variants found:

• chr9-13107049-C-A
• chr9-13107049-C-G
• chr9-13107049-C-T

Variant summary

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

The NM_001378778.1(MPDZ):​c.6129G>T​(p.Gln2043His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000549 in 1,458,472 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. Q2043K) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000055 (0 hom.)
• Consequence: MPDZ NM_001378778.1 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.59
• 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: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

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.6129G>T	p.Gln2043His	missense	Exon 47 of 47	NP_001365707.1	O75970-1
	MPDZ	NM_001375413.1		c.6228G>T	p.Gln2076His	missense	Exon 48 of 48	NP_001362342.1
	MPDZ	NM_001330637.2		c.6129G>T	p.Gln2043His	missense	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.6129G>T	p.Gln2043His	missense	Exon 47 of 47	ENSP00000320006.7	O75970-1
	MPDZ	ENST00000541718.5	TSL:1	c.6042G>T	p.Gln2014His	missense	Exon 46 of 46	ENSP00000439807.1	O75970-2
	MPDZ	ENST00000447879.6	TSL:1	c.6030G>T	p.Gln2010His	missense	Exon 46 of 46	ENSP00000415208.1	O75970-3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000549 AC: 8 AN: 1458472 Hom.: 0 Cov.: 30 AF XY: 0.00000276 AC XY: 2 AN XY: 725498

African (AFR) AF: 0.00 AC: 0 AN: 33452

American (AMR) AF: 0.00 AC: 0 AN: 44698

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26000

East Asian (EAS) AF: 0.00 AC: 0 AN: 39676

South Asian (SAS) AF: 0.00 AC: 0 AN: 85892

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53258

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5754

European-Non Finnish (NFE) AF: 0.00000721 AC: 8 AN: 1109542

Other (OTH) AF: 0.00 AC: 0 AN: 60200

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.25
BayesDel_addAF	Uncertain	0.057	T
BayesDel_noAF	Benign	-0.16
CADD	Benign	23
DANN	Uncertain	0.99
DEOGEN2	Benign	0.036	T
Eigen	Benign	0.11
Eigen_PC	Benign	0.17
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Benign	0.85	T
M_CAP	Benign	0.018	T
MetaRNN	Uncertain	0.50	D
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.23	N
PhyloP100		1.6
PrimateAI	Uncertain	0.72	T
PROVEAN	Benign	-2.2	N
REVEL	Benign	0.25
Sift	Uncertain	0.011	D
Sift4G	Uncertain	0.0030	D
Polyphen		0.80	P
Vest4		0.36
MutPred		0.59		Gain of catalytic residue at L2045 (P = 0.0537)
MVP		0.21
ClinPred		0.97	D
GERP RS		3.7
Varity_R		0.44
gMVP		0.45
Mutation Taster		=32/68	disease causing

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: rs1432642106; hg19: chr9-13107048;