chr14-44962756-C-A

Variant names:

• chr14-44962756-C-A
• rs1364445467
• NM_001308120.2:c.335C>A

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001308120.2(TOGARAM1):​c.335C>A​(p.Ala112Asp) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,122 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. A112G) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: TOGARAM1 NM_001308120.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.62
• Publications: 0 publications found

Genes affected

TOGARAM1 (HGNC:19959): (TOG array regulator of axonemal microtubules 1) Predicted to enable microtubule binding activity. Predicted to be involved in organelle assembly and positive regulation of microtubule polymerization. Predicted to be located in ciliary basal body. Predicted to be active in cilium and microtubule cytoskeleton. Predicted to colocalize with microtubule. Implicated in Joubert syndrome. [provided by Alliance of Genome Resources, Apr 2022]

KLHL28 (HGNC:19741): (kelch like family member 28)

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001308120.2. 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
	TOGARAM1	NM_001308120.2	MANE Select	c.335C>A	p.Ala112Asp	missense	Exon 1 of 20	NP_001295049.1	G3XAE9
	TOGARAM1	NM_015091.4		c.335C>A	p.Ala112Asp	missense	Exon 1 of 19	NP_055906.2	Q9Y4F4-1
	TOGARAM1	NR_131765.2		n.567C>A		non_coding_transcript_exon	Exon 1 of 20

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TOGARAM1	ENST00000361462.7	TSL:1 MANE Select	c.335C>A	p.Ala112Asp	missense	Exon 1 of 20	ENSP00000354917.2	G3XAE9
	TOGARAM1	ENST00000361577.7	TSL:1	c.335C>A	p.Ala112Asp	missense	Exon 1 of 19	ENSP00000355045.3	Q9Y4F4-1
	TOGARAM1	ENST00000555607.1	TSL:1	n.543C>A		non_coding_transcript_exon	Exon 1 of 5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461122 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 726904

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44718

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52676

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111996

Other (OTH) AF: 0.0000166 AC: 1 AN: 60392

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.87
BayesDel_addAF	Pathogenic	0.25	D
BayesDel_noAF	Uncertain	0.12
CADD	Pathogenic	27
DANN	Uncertain	0.99
DEOGEN2	Benign	0.020	T
Eigen	Uncertain	0.54
Eigen_PC	Uncertain	0.55
FATHMM_MKL	Benign	0.68	D
LIST_S2	Benign	0.84	T
M_CAP	Benign	0.014	T
MetaRNN	Uncertain	0.72	D
MetaSVM	Benign	-0.55	T
PhyloP100		3.6
PrimateAI	Pathogenic	0.80	T
PROVEAN	Benign	-1.6	N
REVEL	Benign	0.20
Sift	Uncertain	0.0030	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.93
MutPred		0.31		Gain of loop (P = 0.0045)
MVP		0.52
MPC		0.85
ClinPred		0.96	D
GERP RS		4.9
Varity_R		0.56
gMVP		0.85
Mutation Taster		=72/28	polymorphism

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: rs1364445467; hg19: chr14-45431959;