11-4908069-CTT-GTC

Variant names:

• chr11-4908069-CTT-GTC
• NM_001004749.2:c.700_702delCTTinsGTC
• OR51A7 p.Leu234Val

Variant summary

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

The NM_001004749.2(OR51A7):​c.700_702delCTTinsGTC​(p.Leu234Val) variant causes a missense change involving the alteration of a non-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 variant affecting the same amino acid position, but resulting in a different missense (i.e. L234H) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: OR51A7 NM_001004749.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.598
• Publications: 0 publications found

Genes affected

OR51A7 (HGNC:15188): (olfactory receptor family 51 subfamily A member 7) Olfactory receptors interact with odorant molecules in the nose, to initiate a neuronal response that triggers the perception of a smell. The olfactory receptor proteins are members of a large family of G-protein-coupled receptors (GPCR) arising from single coding-exon genes. Olfactory receptors share a 7-transmembrane domain structure with many neurotransmitter and hormone receptors and are responsible for the recognition and G protein-mediated transduction of odorant signals. The olfactory receptor gene family is the largest in the genome. The nomenclature assigned to the olfactory receptor genes and proteins for this organism is independent of other organisms. [provided by RefSeq, Jul 2008]

MMP26 (HGNC:14249): (matrix metallopeptidase 26) Proteins of the matrix metalloproteinase (MMP) family are involved in the breakdown of extracellular matrix in normal physiological processes, such as embryonic development, reproduction, and tissue remodeling, as well as in disease processes, such as arthritis and metastasis. The encoded preproprotein is proteolytically processed to generate the mature enzyme. This enzyme may degrade collagen type IV, fibronectin, fibrinogen, and beta-casein, and activate matrix metalloproteinase-9 by cleavage. The protein differs from most MMP family members in that it lacks a conserved C-terminal protein domain. The encoded protein may promote cell invasion in multiple human cancers. [provided by RefSeq, May 2016]

ACMG classification

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

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001004749.2. 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
	OR51A7	NM_001004749.2	MANE Select	c.700_702delCTTinsGTC	p.Leu234Val	missense	N/A	NP_001004749.1	Q8NH64
	MMP26	NM_021801.5	MANE Select	c.-144-79999_-144-79997delCTTinsGTC		intron	N/A	NP_068573.2	Q9NRE1
	MMP26	NM_001384608.1		c.-152-80201_-152-80199delCTTinsGTC		intron	N/A	NP_001371537.1	A0A8J8YUH5

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	OR51A7	ENST00000641490.1	MANE Select	c.700_702delCTTinsGTC	p.Leu234Val	missense	N/A	ENSP00000493162.1	Q8NH64
	MMP26	ENST00000380390.6	TSL:5 MANE Select	c.-144-79999_-144-79997delCTTinsGTC		intron	N/A	ENSP00000369753.1	Q9NRE1
	MMP26	ENST00000300762.2	TSL:1	c.-152-80201_-152-80199delCTTinsGTC		intron	N/A	ENSP00000300762.2	A0A8J8YUH5

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		-0.60

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: chr11-4929299;