1-207911029-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001025109.2(CD34):c.52A>C(p.Thr18Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000816 in 1,592,918 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000069 ( 0 hom. )

Consequence

CD34
NM_001025109.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.737

Variant links:

Genes affected

CD34 (HGNC:1662): (CD34 molecule) The protein encoded by this gene may play a role in the attachment of stem cells to the bone marrow extracellular matrix or to stromal cells. This single-pass membrane protein is highly glycosylated and phosphorylated by protein kinase C. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2011]

CD34 links:

(HGNC:):

links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.19156304).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CD34	NM_001025109.2 linkuse as main transcript	c.52A>C	p.Thr18Pro	missense_variant	1/8	ENST00000310833.12
LOC107985253	XR_001738424.2 linkuse as main transcript	n.374+191T>G		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CD34	ENST00000310833.12 linkuse as main transcript	c.52A>C	p.Thr18Pro	missense_variant	1/8	1	NM_001025109.2	P1	P28906-1
CD34	ENST00000356522.4 linkuse as main transcript	c.52A>C	p.Thr18Pro	missense_variant	1/8	1			P28906-2
	ENST00000648286.1 linkuse as main transcript	n.371+191T>G		intron_variant, non_coding_transcript_variant
	ENST00000661734.1 linkuse as main transcript	n.274+191T>G		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152024

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000583

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

GnomAD3 exomes

AF:

0.0000433

AC:

AN:

207628

Hom.:

AF XY:

0.0000612

AC XY:

AN XY:

114356

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000551

Gnomad SAS 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:

0.00000694

AC:

AN:

1440894

Hom.:

Cov.:

AF XY:

0.00000699

AC XY:

AN XY:

715542

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000204

Gnomad4 SAS exome

AF:

0.0000119

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000168

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152024

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74246

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000583

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000189

ExAC

AF:

0.0000338

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 05, 2023

The c.52A>C (p.T18P) alteration is located in exon 1 (coding exon 1) of the CD34 gene. This alteration results from a A to C substitution at nucleotide position 52, causing the threonine (T) at amino acid position 18 to be replaced by a proline (P). 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

0.24

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.34

Cadd

Benign

Dann

Uncertain

0.99

DEOGEN2

Benign

0.36

T;.

Eigen

Benign

0.062

Eigen_PC

Benign

-0.012

FATHMM_MKL

Benign

0.63

LIST_S2

Benign

0.60

T;T

M_CAP

Benign

0.018

MetaRNN

Benign

0.19

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.9

L;L

MutationTaster

Benign

1.0

D;N;N

PrimateAI

Uncertain

0.61

PROVEAN

Uncertain

-2.6

D;D

REVEL

Benign

0.23

Sift

Uncertain

0.0090

D;D

Sift4G

Uncertain

0.012

D;D

Polyphen

0.92

P;D

Vest4

0.60

MutPred

0.53

Gain of loop (P = 0.0045);Gain of loop (P = 0.0045);

MVP

0.51

MPC

0.83

ClinPred

0.45

GERP RS

1.1

Varity_R

0.49

gMVP

0.38

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

Details are displayed if max score is > 0.2

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over