7-44210266-G-C

Variant names:

• chr7-44210266-G-C
• rs2331003
• NM_006555.4:c.460-757G>C

Variant summary

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

The NM_006555.4(YKT6):​c.460-757G>C 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: 31)
• Consequence: YKT6 NM_006555.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.861
• Publications: 4 publications found

Genes affected

YKT6 (HGNC:16959): (YKT6 v-SNARE homolog) This gene product is one of the SNARE recognition molecules implicated in vesicular transport between secretory compartments. It is a membrane associated, isoprenylated protein that functions at the endoplasmic reticulum-Golgi transport step. This protein is highly conserved from yeast to human and can functionally complement the loss of the yeast homolog in the yeast secretory pathway. [provided by RefSeq, Jul 2008]

CAMK2B (HGNC:1461): (calcium/calmodulin dependent protein kinase II beta) The product of this gene belongs to the serine/threonine protein kinase family and to the Ca(2+)/calmodulin-dependent protein kinase subfamily. Calcium signaling is crucial for several aspects of plasticity at glutamatergic synapses. In mammalian cells, the enzyme is composed of four different chains: alpha, beta, gamma, and delta. The product of this gene is a beta chain. It is possible that distinct isoforms of this chain have different cellular localizations and interact differently with calmodulin. Alternative splicing results in multiple transcript variants. [provided by RefSeq, May 2014]

CAMK2B Gene-Disease associations (from GenCC):

• intellectual disability, autosomal dominant 40

  Inheritance: AD Classification: DEFINITIVE Submitted by: Illumina
• intellectual disability, autosomal dominant 54

  Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
• autosomal dominant non-syndromic intellectual disability

  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=-0.94).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006555.4. 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
	YKT6	NM_006555.4	MANE Select	c.460-757G>C		intron	N/A	NP_006546.1	A4D2J0
	YKT6	NM_001410874.1		c.460-757G>C		intron	N/A	NP_001397803.1	A0A7I2V4L6
	YKT6	NM_001363678.2		c.460-1981G>C		intron	N/A	NP_001350607.1	O15498-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	YKT6	ENST00000223369.3	TSL:1 MANE Select	c.460-757G>C		intron	N/A	ENSP00000223369.2	O15498-1
	YKT6	ENST00000421621.3	TSL:1	n.1153-757G>C		intron	N/A
	CAMK2B	ENST00000943311.1		c.*2080C>G		3_prime_UTR	Exon 22 of 22	ENSP00000613370.1

Frequencies

GnomAD3 genomes Cov.: 31

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

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.94
CADD	Benign	0.23
DANN	Benign	0.44
PhyloP100		-0.86

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

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

Other links and lift over

dbSNP: rs2331003;

hg19: chr7-44249865;