chr11-8696434-CC-TT

Variant names:

• chr11-8696434-CC-TT
• NM_213618.2:c.3284_3285delGGinsAA
• DENND2B p.Arg1095Gln

Variant summary

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

The NM_213618.2(DENND2B):​c.3284_3285delGGinsAA​(p.Arg1095Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. It is difficult to determine the true allele frequency of this variant because it is of type MNV, and the frequency of such variant types in population databases may be underestimated and unreliable. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar.

• Frequency: Genomes: not found (cov: 33)
• Consequence: DENND2B NM_213618.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.35
• Publications: 0 publications found

Genes affected

DENND2B (HGNC:11350): (DENN domain containing 2B) This gene was identified by its ability to suppress the tumorigenicity of Hela cells in nude mice. The protein encoded by this gene contains a C-terminal region that shares similarity with the Rab 3 family of small GTP binding proteins. This protein preferentially binds to the SH3 domain of c-Abl kinase, and acts as a regulator of MAPK1/ERK2 kinase, which may contribute to its ability to reduce the tumorigenic phenotype in cells. Three alternatively spliced transcript variants of this gene encoding distinct isoforms are identified. [provided by RefSeq, Jul 2008]

ENSG00000254665 (HGNC:):

RPL27A (HGNC:10329): (ribosomal protein L27a) Ribosomes, the organelles that catalyze protein synthesis, consist of a small 40S subunit and a large 60S subunit. Together these subunits are composed of 4 RNA species and approximately 80 structurally distinct proteins. This gene encodes a ribosomal protein that is a component of the 60S subunit. The protein belongs to the L15P family of ribosomal proteins. It is located in the cytoplasm. Variable expression of this gene in colorectal cancers compared to adjacent normal tissues has been observed, although no correlation between the level of expression and the severity of the disease has been found. As is typical for genes encoding ribosomal proteins, multiple processed pseudogenes derived from this gene are dispersed through the genome. [provided by RefSeq, Jul 2008]

ACMG classification

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

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_213618.2. 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
	DENND2B	NM_213618.2	MANE Select	c.3284_3285delGGinsAA	p.Arg1095Gln	missense	N/A	NP_998783.1	P78524-1
	DENND2B	NM_001376495.1		c.3284_3285delGGinsAA	p.Arg1095Gln	missense	N/A	NP_001363424.1	P78524-1
	DENND2B	NM_001376496.1		c.3284_3285delGGinsAA	p.Arg1095Gln	missense	N/A	NP_001363425.1	P78524-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DENND2B	ENST00000313726.11	TSL:1 MANE Select	c.3284_3285delGGinsAA	p.Arg1095Gln	missense	N/A	ENSP00000319678.6	P78524-1
	DENND2B	ENST00000534127.5	TSL:1	c.3284_3285delGGinsAA	p.Arg1095Gln	missense	N/A	ENSP00000433528.1	P78524-1
	DENND2B	ENST00000526757.5	TSL:1	c.2024_2025delGGinsAA	p.Arg675Gln	missense	N/A	ENSP00000435097.1	P78524-2

Frequencies

GnomAD3 genomes Cov.: 33

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

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		7.3

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: chr11-8717981;