17-59620155-T-C

Variant names:

• chr17-59620155-T-C
• rs777747287
• NM_004859.4:c.24T>C

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 2P and 11B. PM2 BP4_Strong BP6_Moderate BP7 BS1

The NM_004859.4(CLTC):​c.24T>C​(p.Arg8Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,782 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: CLTC NM_004859.4 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 0.149
• Publications: 1 publications found

Genes affected

CLTC (HGNC:2092): (clathrin heavy chain) Clathrin is a major protein component of the cytoplasmic face of intracellular organelles, called coated vesicles and coated pits. These specialized organelles are involved in the intracellular trafficking of receptors and endocytosis of a variety of macromolecules. The basic subunit of the clathrin coat is composed of three heavy chains and three light chains. [provided by RefSeq, Jul 2008]

CLTC Gene-Disease associations (from GenCC):

• intellectual disability, autosomal dominant 56

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

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• undetermined early-onset epileptic encephalopathy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ENSG00000273702 (HGNC:):

ACMG classification

Our verdict: Benign. The variant received -9 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.64).
• BP6: Variant 17-59620155-T-C is Benign according to our data. Variant chr17-59620155-T-C is described in ClinVar as Likely_benign. ClinVar VariationId is 2131360.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=0.149 with no splicing effect.
• BS1: Variant frequency is greater than expected in population afr. GnomAdExome4 allele frequency = 0.00000205 (3/1461782) while in subpopulation AFR AF = 0.0000896 (3/33474). AF 95% confidence interval is 0.0000238. There are 0 homozygotes in GnomAdExome4. There are 1 alleles in the male GnomAdExome4 subpopulation. Median coverage is 31. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004859.4. 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
	CLTC	NM_004859.4	MANE Select	c.24T>C	p.Arg8Arg	synonymous	Exon 1 of 32	NP_004850.1	Q00610-1
	CLTC	NM_001288653.2		c.24T>C	p.Arg8Arg	synonymous	Exon 1 of 32	NP_001275582.1	A0A087WVQ6

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CLTC	ENST00000269122.8	TSL:1 MANE Select	c.24T>C	p.Arg8Arg	synonymous	Exon 1 of 32	ENSP00000269122.3	Q00610-1
	CLTC	ENST00000393043.5	TSL:1	c.24T>C	p.Arg8Arg	synonymous	Exon 1 of 31	ENSP00000376763.1	Q00610-2
	CLTC	ENST00000700714.2		c.24T>C	p.Arg8Arg	synonymous	Exon 1 of 34	ENSP00000515154.2	A0A8V8TQ18

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD2 exomes AF: 0.00000402 AC: 1 AN: 248596 AF XY: 0.00

Gnomad AFR exome AF: 0.0000616

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1461782 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727192

African (AFR) AF: 0.0000896 AC: 3 AN: 33474

American (AMR) AF: 0.00 AC: 0 AN: 44720

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

East Asian (EAS) AF: 0.00 AC: 0 AN: 39690

South Asian (SAS) AF: 0.00 AC: 0 AN: 86254

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53400

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

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111948

Other (OTH) AF: 0.00 AC: 0 AN: 60392

GnomAD4 genome Cov.: 31

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000113

ClinVar

ClinVar submissions

Significance: Likely benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.64
CADD	Benign	12
DANN	Benign	0.86
PhyloP100		0.15
PromoterAI		0.00030	Neutral
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7

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: rs777747287; hg19: chr17-57697516;