21-44612353-C-T

Variant names:

• chr21-44612353-C-T
• NM_198695.2:c.253C>T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_198695.2(KRTAP10-8):​c.253C>T​(p.Pro85Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: KRTAP10-8 NM_198695.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.918
• Publications: 0 publications found

Genes affected

KRTAP10-8 (HGNC:20525): (keratin associated protein 10-8) Enables identical protein binding activity. Predicted to be located in cytosol. [provided by Alliance of Genome Resources, Apr 2022]

TSPEAR (HGNC:1268): (thrombospondin type laminin G domain and EAR repeats) This gene encodes a protein that contains a N-terminal thrombospondin-type laminin G domain and several tandem arranged epilepsy-associated repeats (EARs). A mutation in this gene is the cause of autosomal recessive deafness-98. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Dec 2012]

TSPEAR Gene-Disease associations (from GenCC):

• ectodermal dysplasia 14, hair/tooth type with or without hypohidrosis

  Inheritance: AR Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
• hearing loss, autosomal recessive

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• autosomal recessive nonsyndromic hearing loss 98

  Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
• nonsyndromic genetic hearing loss

  Inheritance: AR Classification: NO_KNOWN Submitted by: ClinGen

ACMG classification

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

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.0731383).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_198695.2. 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
	KRTAP10-8	NM_198695.2	MANE Select	c.253C>T	p.Pro85Ser	missense	Exon 1 of 1	NP_941968.2	P60410
	TSPEAR	NM_144991.3	MANE Select	c.83-44348G>A		intron	N/A	NP_659428.2
	TSPEAR	NM_001272037.2		c.-122-44348G>A		intron	N/A	NP_001258966.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KRTAP10-8	ENST00000334662.2	TSL:6 MANE Select	c.253C>T	p.Pro85Ser	missense	Exon 1 of 1	ENSP00000335565.2	P60410
	TSPEAR	ENST00000323084.9	TSL:1 MANE Select	c.83-44348G>A		intron	N/A	ENSP00000321987.4	Q8WU66-1
	TSPEAR	ENST00000943283.1		c.83-44348G>A		intron	N/A	ENSP00000613342.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 35

GnomAD4 genome Cov.: 32

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	Benign	0.072
BayesDel_addAF	Benign	-0.39	T
BayesDel_noAF	Benign	-0.80
CADD	Benign	14
DANN	Benign	0.97
DEOGEN2	Benign	0.018	T
Eigen	Benign	-1.1
Eigen_PC	Benign	-1.2
FATHMM_MKL	Benign	0.032	N
LIST_S2	Benign	0.11	T
M_CAP	Benign	0.0038	T
MetaRNN	Benign	0.073	T
MetaSVM	Benign	-0.97	T
MutationAssessor	Benign	0.96	L
PhyloP100		-0.92
PrimateAI	Benign	0.19	T
PROVEAN	Pathogenic	-5.5	D
REVEL	Benign	0.036
Sift	Benign	0.41	T
Sift4G	Benign	0.70	T
Polyphen		0.15	B
Vest4		0.070
MutPred		0.28		Loss of catalytic residue at P85 (P = 0.012)
MVP		0.29
MPC		0.34
ClinPred		0.10	T
GERP RS		-1.6
PromoterAI		0.00010	Neutral
Varity_R		0.066
gMVP		0.041
Mutation Taster		=95/5	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

hg19: chr21-46032270;