rs776793449

Variant names:

• chr17-41255798-C-A
• rs776793449
• NM_030975.2:c.413C>A

Your query was ambiguous. Multiple possible variants found:

• chr17-41255798-C-A
• chr17-41255798-C-T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_030975.2(KRTAP9-9):​c.413C>A​(p.Pro138His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000205 in 1,613,570 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000013 (0 hom., cov: 31)
  • Exomes 𝑓: 0.000021 (1 hom.)
• Consequence: KRTAP9-9 NM_030975.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.90
• Publications: 1 publications found

Genes affected

KRTAP9-9 (HGNC:16773): (keratin associated protein 9-9) This protein is a member of the keratin-associated protein (KAP) family. The KAP proteins form a matrix of keratin intermediate filaments which contribute to the structure of hair fibers. KAP family members appear to have unique, family-specific amino- and carboxyl-terminal regions and are subdivided into three multi-gene families according to amino acid composition: the high sulfur, the ultrahigh sulfur, and the high tyrosine/glycine KAPs. This protein is a member of the ultrahigh sulfur KAP family and the gene is localized to a cluster of KAPs at 17q12-q21. Alternative haplotypes of this gene are represented in the GRCh38 reference genome assembly. [provided by RefSeq, Dec 2015]

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.18436214).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_030975.2. 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
	KRTAP9-9	NM_030975.2	MANE Select	c.413C>A	p.Pro138His	missense	Exon 1 of 1	NP_112237.2	Q9BYP9-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KRTAP9-9	ENST00000394008.1	TSL:6 MANE Select	c.413C>A	p.Pro138His	missense	Exon 1 of 1	ENSP00000377576.1	Q9BYP9-3

Frequencies

GnomAD3 genomes AF: 0.0000132 AC: 2 AN: 152020 Hom.: 0 Cov.: 31

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000415

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000557 AC: 14 AN: 251486 AF XY: 0.0000515

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: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000212 AC: 31 AN: 1461550 Hom.: 1 Cov.: 36 AF XY: 0.0000303 AC XY: 22 AN XY: 727040

African (AFR) AF: 0.00 AC: 0 AN: 33424

American (AMR) AF: 0.00 AC: 0 AN: 44710

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26122

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

South Asian (SAS) AF: 0.000337 AC: 29 AN: 86144

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53402

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111908

Other (OTH) AF: 0.0000331 AC: 2 AN: 60374

GnomAD4 genome AF: 0.0000132 AC: 2 AN: 152020 Hom.: 0 Cov.: 31 AF XY: 0.0000269 AC XY: 2 AN XY: 74246

African (AFR) AF: 0.00 AC: 0 AN: 41362

American (AMR) AF: 0.00 AC: 0 AN: 15274

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5180

South Asian (SAS) AF: 0.000415 AC: 2 AN: 4824

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10582

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68012

Other (OTH) AF: 0.00 AC: 0 AN: 2090

Alfa AF: 0.00 Hom.: 0

ExAC AF: 0.0000741 AC: 9

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	0.27
BayesDel_addAF	Benign	-0.45	T
BayesDel_noAF	Benign	-0.55
CADD	Benign	20
DANN	Uncertain	0.99
Eigen	Benign	-0.094
Eigen_PC	Benign	-0.35
FATHMM_MKL	Benign	0.33	N
M_CAP	Benign	0.0026	T
MetaRNN	Benign	0.18	T
MetaSVM	Benign	-1.0	T
PhyloP100		1.9
PrimateAI	Benign	0.24	T
PROVEAN	Pathogenic	-6.8	D
REVEL	Benign	0.056
Sift	Uncertain	0.0010	D
Sift4G	Pathogenic	0.0	D
Vest4		0.49
MVP		0.25
MPC		0.27
ClinPred		0.89	D
GERP RS		1.9
PromoterAI		-0.0042	Neutral
gMVP		0.070
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

dbSNP: rs776793449; hg19: chr17-39412050;