Genetic Variant KCP:p.Arg1560His (chr7-128877251-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001366122.1(KCP):c.4679G>A(p.Arg1560His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000128 in 1,487,442 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 Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1560C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

KCP
NM_001366122.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.443

Publications

0 publications found

Variant links:

Genes affected

KCP (HGNC:17585): (kielin cysteine rich BMP regulator) Predicted to act upstream of or within hematopoietic progenitor cell differentiation and positive regulation of BMP signaling pathway. Predicted to be located in extracellular space. [provided by Alliance of Genome Resources, Apr 2022]

KCP links:

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ACMG classification

Classification was made for transcript

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=0.11376485).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KCP	NM_001366122.1 link	c.4679G>A	p.Arg1560His	missense_variant	Exon 40 of 40	ENST00000610776.5	NP_001353051.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
KCP	ENST00000610776.5 link	c.4679G>A	p.Arg1560His	missense_variant	Exon 40 of 40	5	NM_001366122.1	ENSP00000479679.1		A0A087WVT8

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152154

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000196

AC:

AN:

102226

AF XY:

0.0000186

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000780

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000117

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000135

AC:

AN:

1335288

Hom.:

Cov.:

AF XY:

0.00000919

AC XY:

AN XY:

653194

show subpopulations

African (AFR)

AF:

0.0000694

AC:

AN:

28822

American (AMR)

AF:

0.0000449

AC:

AN:

22254

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

21470

East Asian (EAS)

AF:

0.0000285

AC:

AN:

35132

South Asian (SAS)

AF:

0.00

AC:

AN:

69612

European-Finnish (FIN)

AF:

0.00

AC:

AN:

46732

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4902

European-Non Finnish (NFE)

AF:

0.0000124

AC:

AN:

1051286

Other (OTH)

AF:

0.0000182

AC:

AN:

55078

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.467

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152154

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74330

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41432

American (AMR)

AF:

0.00

AC:

AN:

15286

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5178

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10614

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68018

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000151

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 15, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.4304G>A (p.R1435H) alteration is located in exon 36 (coding exon 36) of the KCP gene. This alteration results from a G to A substitution at nucleotide position 4304, causing the arginine (R) at amino acid position 1435 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.091

BayesDel_addAF

Uncertain

0.031

BayesDel_noAF

Uncertain

0.030

CADD

Uncertain

(source)

DANN

Benign

0.82

DEOGEN2

Benign

0.031

T;.;T

FATHMM_MKL

Benign

0.69

LIST_S2

Benign

0.76

T;T;T

MetaRNN

Benign

0.11

T;T;T

PhyloP100

0.44

PrimateAI

Benign

0.38

Sift4G

Benign

0.062

T;T;T

Vest4

0.24

MVP

0.22

GERP RS

5.4

Varity_R

0.056

gMVP

0.34

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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7-128877251-C-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over