chr9-128434422-G-G

Variant names:

• chr9-128434422-G-G
• NM_016174.5:c.

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PVS1_Strong PM2

The ENST00000372838.9(CERCAM):​c. variant causes a splice donor, intron change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: CERCAM ENST00000372838.9 splice_donor, intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 9.21
• Publications: 0 publications found

Genes affected

CERCAM (HGNC:23723): (cerebral endothelial cell adhesion molecule) Enables identical protein binding activity. Acts upstream of or within cell adhesion. Predicted to be located in endoplasmic reticulum lumen. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

• PVS1: Splicing +-2 bp (donor or acceptor) variant, product NOT destroyed by NMD, known LOF gene, truncates exone, which is 0.11409396 fraction of the gene. No cryptic splice site detected. Exon removal is inframe change.
• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000372838.9. 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
	CERCAM	NM_016174.5	MANE Select	c.		intron	N/A	NP_057258.3
	CERCAM	NM_001286760.1		c.		intron	N/A	NP_001273689.1	Q5T4B2-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CERCAM	ENST00000372838.9	TSL:1 MANE Select	c.		splice_donor intron	N/A	ENSP00000361929.4	Q5T4B2-1
	CERCAM	ENST00000951772.1		c.		splice_donor intron	N/A	ENSP00000621831.1
	CERCAM	ENST00000951773.1		c.		splice_donor intron	N/A	ENSP00000621832.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		9.2

Splicing

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr9-131196701;