18-35019577-C-G

Variant names:

• chr18-35019577-C-G
• rs273352
• NM_001143827.3:c.86+14024C>G

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001143827.3(MAPRE2):​c.86+14024C>G variant causes a intron 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.

• Frequency: Genomes: not found (cov: 32)
• Consequence: MAPRE2 NM_001143827.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.307
• Publications: 2 publications found

Genes affected

MAPRE2 (HGNC:6891): (microtubule associated protein RP/EB family member 2) The protein encoded by this gene shares significant homology to the adenomatous polyposis coli (APC) protein-binding EB1 gene family. This protein is a microtubule-associated protein that is necessary for spindle symmetry during mitosis. It is thought to play a role in the tumorigenesis of colorectal cancers and the proliferative control of normal cells. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Jan 2012]

MAPRE2 Gene-Disease associations (from GenCC):

• skin creases, congenital symmetric circumferential, 2

  Inheritance: Unknown, AD, AR Classification: DEFINITIVE, MODERATE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
• multiple benign circumferential skin creases on limbs

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.82).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001143827.3. 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
	MAPRE2	NM_001143827.3		c.86+14024C>G		intron	N/A	NP_001137299.1
	MAPRE2	NM_001143826.3		c.-8+14024C>G		intron	N/A	NP_001137298.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MAPRE2	ENST00000436190.6	TSL:2	c.86+14024C>G		intron	N/A	ENSP00000407723.1
	MAPRE2	ENST00000413393.5	TSL:5	c.-8+14024C>G		intron	N/A	ENSP00000396074.1
	MAPRE2	ENST00000591734.5	TSL:2	c.-8+14024C>G		intron	N/A	ENSP00000468216.1

Frequencies

GnomAD3 genomes Cov.: 32

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.82
CADD	Benign	1.4
DANN	Benign	0.63
PhyloP100		-0.31

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs273352; hg19: chr18-32599541;