Genetic Variant CD34:p.Val380Met (chr1-207887758-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

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

The NM_001025109.2(CD34):c.1138G>A(p.Val380Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000105 in 1,614,034 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 (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

CD34
NM_001025109.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.621

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:

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=0.2569761).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CD34	NM_001025109.2 link	c.1138G>A	p.Val380Met	missense_variant	Exon 8 of 8	ENST00000310833.12	NP_001020280.1	P28906-1
CD34	NM_001773.3 link	c.*346G>A		3_prime_UTR_variant	Exon 8 of 8		NP_001764.1	P28906-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
CD34	ENST00000310833.12 link	c.1138G>A	p.Val380Met	missense_variant	Exon 8 of 8	1	NM_001025109.2	ENSP00000310036.7	P28906-1
CD34	ENST00000367036.7 link	c.664G>A	p.Val222Met	missense_variant	Exon 5 of 5	1		ENSP00000356003.3	Q5JTA5
CD34	ENST00000356522 link	c.*346G>A		3_prime_UTR_variant	Exon 8 of 8	1		ENSP00000348916.4	P28906-2
CD34	ENST00000485761.1 link	n.618+924G>A		intron_variant	Intron 5 of 5	5

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152142

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000145

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:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000796

AC:

AN:

251404

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135880

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000684

AC:

AN:

1461892

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

727248

show subpopulations

Gnomad4 AFR exome

AF:

0.000269

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152142

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74310

show subpopulations

Gnomad4 AFR

AF:

0.000145

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000658

Hom.:

Bravo

AF:

0.0000453

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 10, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1138G>A (p.V380M) alteration is located in exon 8 (coding exon 8) of the CD34 gene. This alteration results from a G to A substitution at nucleotide position 1138, causing the valine (V) at amino acid position 380 to be replaced by a methionine (M). 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

0.25

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.35

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.25

T;.

Eigen

Uncertain

0.51

Eigen_PC

Uncertain

0.49

FATHMM_MKL

Benign

0.47

LIST_S2

Uncertain

0.87

D;D

M_CAP

Benign

0.0053

MetaRNN

Benign

0.26

T;T

MetaSVM

Benign

-0.97

MutationAssessor

Uncertain

2.2

M;.

PrimateAI

Uncertain

0.66

PROVEAN

Benign

-1.6

N;N

REVEL

Benign

0.21

Sift

Benign

0.15

T;T

Sift4G

Benign

0.16

T;T

Polyphen

1.0

D;D

Vest4

0.076

MVP

0.69

MPC

0.74

ClinPred

0.59

GERP RS

4.9

Varity_R

0.16

gMVP

0.31

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