20-35021272-A-G

Variant names:

• chr20-35021272-A-G
• rs182553395
• NM_015638.3:c.1136T>C

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2

The NM_015638.3(TRPC4AP):​c.1136T>C​(p.Met379Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000545 in 1,614,152 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M379V) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000053 (0 hom.)
• Consequence: TRPC4AP NM_015638.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 8.94
• Publications: 0 publications found

Genes affected

TRPC4AP (HGNC:16181): (transient receptor potential cation channel subfamily C member 4 associated protein) Enables phosphatase binding activity and ubiquitin ligase-substrate adaptor activity. Involved in protein ubiquitination and ubiquitin-dependent protein catabolic process via the C-end degron rule pathway. Part of Cul4A-RING E3 ubiquitin ligase complex. Is active in Cul4-RING E3 ubiquitin ligase complex. [provided by Alliance of Genome Resources, Apr 2022]

TRPC4AP Gene-Disease associations (from GenCC):

• hypothyroidism

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

Our verdict: Likely_benign. The variant received -4 ACMG points.

• BS2: High AC in GnomAd4 at 10 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015638.3. 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
	TRPC4AP	NM_015638.3	MANE Select	c.1136T>C	p.Met379Thr	missense	Exon 9 of 19	NP_056453.1	Q8TEL6-1
	TRPC4AP	NM_199368.2		c.1112T>C	p.Met371Thr	missense	Exon 9 of 19	NP_955400.1	Q8TEL6-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TRPC4AP	ENST00000252015.3	TSL:1 MANE Select	c.1136T>C	p.Met379Thr	missense	Exon 9 of 19	ENSP00000252015.2	Q8TEL6-1
	TRPC4AP	ENST00000970992.1		c.1136T>C	p.Met379Thr	missense	Exon 9 of 19	ENSP00000641051.1
	TRPC4AP	ENST00000888656.1		c.1136T>C	p.Met379Thr	missense	Exon 9 of 20	ENSP00000558715.1

Frequencies

GnomAD3 genomes AF: 0.0000657 AC: 10 AN: 152154 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000655

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.0000942

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000118

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000398 AC: 10 AN: 251402 AF XY: 0.0000368

Gnomad AFR exome AF: 0.00

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: 0.0000880

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000534 AC: 78 AN: 1461880 Hom.: 0 Cov.: 31 AF XY: 0.0000578 AC XY: 42 AN XY: 727242

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.00 AC: 0 AN: 44724

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

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

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53414

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

European-Non Finnish (NFE) AF: 0.0000683 AC: 76 AN: 1112008

Other (OTH) AF: 0.0000331 AC: 2 AN: 60394

GnomAD4 genome AF: 0.0000657 AC: 10 AN: 152272 Hom.: 0 Cov.: 32 AF XY: 0.0000537 AC XY: 4 AN XY: 74450

African (AFR) AF: 0.00 AC: 0 AN: 41558

American (AMR) AF: 0.0000654 AC: 1 AN: 15290

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5166

South Asian (SAS) AF: 0.00 AC: 0 AN: 4828

European-Finnish (FIN) AF: 0.0000942 AC: 1 AN: 10614

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.000118 AC: 8 AN: 68024

Other (OTH) AF: 0.00 AC: 0 AN: 2116

Alfa AF: 0.000216 Hom.: 0

Bravo AF: 0.0000567

ExAC AF: 0.0000659 AC: 8

EpiCase AF: 0.0000545

EpiControl AF: 0.000119

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

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

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.98
BayesDel_addAF	Pathogenic	0.29	D
BayesDel_noAF	Pathogenic	0.37
CADD	Uncertain	26
DANN	Uncertain	0.99
DEOGEN2	Benign	0.062	T
Eigen	Uncertain	0.63
Eigen_PC	Pathogenic	0.68
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Uncertain	0.92	D
M_CAP	Benign	0.0057	T
MetaRNN	Uncertain	0.49	T
MetaSVM	Benign	-0.69	T
MutationAssessor	Uncertain	2.1	M
PhyloP100		8.9
PrimateAI	Pathogenic	0.80	T
PROVEAN	Benign	-1.5	N
REVEL	Uncertain	0.46
Sift	Benign	0.15	T
Sift4G	Uncertain	0.0040	D
Polyphen		0.98	D
Vest4		0.94
MVP		0.18
MPC		0.45
ClinPred		0.33	T
GERP RS		5.7
Varity_R		0.32
gMVP		0.75
Mutation Taster		=21/79	disease causing

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: rs182553395; hg19: chr20-33609075;