NM_016277.5:c.39_41delGGT

Variant names:

• chr6-57210339-AACC-A
• rs45469399
• NM_016277.5:c.39_41delGGT

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2 PM4_Supporting

The NM_016277.5(RAB23):​c.39_41delGGT​(p.Val14del) variant causes a disruptive inframe deletion 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: RAB23 NM_016277.5 disruptive_inframe_deletion
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 9.32
• Publications: 0 publications found

Genes affected

RAB23 (HGNC:14263): (RAB23, member RAS oncogene family) This gene encodes a small GTPase of the Ras superfamily. Rab proteins are involved in the regulation of diverse cellular functions associated with intracellular membrane trafficking, including autophagy and immune response to bacterial infection. The encoded protein may play a role in central nervous system development by antagonizing sonic hedgehog signaling. Disruption of this gene has been implicated in Carpenter syndrome as well as cancer. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2013]

RAB23 Gene-Disease associations (from GenCC):

• RAB23-related Carpenter syndrome

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), ClinGen
• Carpenter syndrome

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM4: Nonframeshift variant in NON repetitive region in NM_016277.5. Strenght limited to Supporting due to length of the change: 1aa.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_016277.5. 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
	RAB23	NM_016277.5	MANE Select	c.39_41delGGT	p.Val14del	disruptive_inframe_deletion	Exon 2 of 7	NP_057361.3
	RAB23	NM_001278666.2		c.39_41delGGT	p.Val14del	disruptive_inframe_deletion	Exon 2 of 7	NP_001265595.1	Q9ULC3
	RAB23	NM_001278667.2		c.39_41delGGT	p.Val14del	disruptive_inframe_deletion	Exon 2 of 7	NP_001265596.1	Q9ULC3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RAB23	ENST00000468148.6	TSL:1 MANE Select	c.39_41delGGT	p.Val14del	disruptive_inframe_deletion	Exon 2 of 7	ENSP00000417610.1	Q9ULC3
	RAB23	ENST00000317483.4	TSL:1	c.39_41delGGT	p.Val14del	disruptive_inframe_deletion	Exon 2 of 7	ENSP00000320413.3	Q9ULC3
	RAB23	ENST00000875526.1		c.39_41delGGT	p.Val14del	disruptive_inframe_deletion	Exon 2 of 7	ENSP00000545585.1

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
PhyloP100		9.3

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: rs45469399; hg19: chr6-57075137;