Genetic Variant CD44:p.Ile479Arg (chr11-35208126-T-G) – 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_000610.4(CD44):c.1436T>G(p.Ile479Arg) 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. 14/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I479T) has been classified as Benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

CD44
NM_000610.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.13

Publications

73 publications found

Variant links:

Genes affected

CD44 (HGNC:1681): (CD44 molecule (IN blood group)) The protein encoded by this gene is a cell-surface glycoprotein involved in cell-cell interactions, cell adhesion and migration. It is a receptor for hyaluronic acid (HA) and can also interact with other ligands, such as osteopontin, collagens, and matrix metalloproteinases (MMPs). This protein participates in a wide variety of cellular functions including lymphocyte activation, recirculation and homing, hematopoiesis, and tumor metastasis. Transcripts for this gene undergo complex alternative splicing that results in many functionally distinct isoforms, however, the full length nature of some of these variants has not been determined. Alternative splicing is the basis for the structural and functional diversity of this protein, and may be related to tumor metastasis. [provided by RefSeq, Jul 2008]

CD44 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=0.10400429).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CD44	NM_000610.4 link	c.1436T>G	p.Ile479Arg	missense_variant	Exon 12 of 18	ENST00000428726.8	NP_000601.3	P16070-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CD44	ENST00000428726.8 link	c.1436T>G	p.Ile479Arg	missense_variant	Exon 12 of 18	1	NM_000610.4	ENSP00000398632.2		P16070-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000398

AC:

AN:

251076

AF XY:

0.00000737

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000881

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

6.87e-7

AC:

AN:

1456538

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

725004

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33338

American (AMR)

AF:

0.00

AC:

AN:

44704

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26084

East Asian (EAS)

AF:

0.00

AC:

AN:

39642

South Asian (SAS)

AF:

0.00

AC:

AN:

86118

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53404

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5760

European-Non Finnish (NFE)

AF:

9.03e-7

AC:

AN:

1107254

Other (OTH)

AF:

0.00

AC:

AN:

60234

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00000182

Hom.:

194148

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.080

BayesDel_addAF

Benign

-0.13

BayesDel_noAF

Benign

-0.42

CADD

Uncertain

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.31

T;.;.;.;.;T;.;T

Eigen

Benign

-0.28

Eigen_PC

Benign

-0.19

FATHMM_MKL

Benign

0.47

LIST_S2

Benign

0.54

T;T;T;T;T;T;T;T

M_CAP

Benign

0.029

MetaRNN

Benign

0.10

T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.91

MutationAssessor

Benign

0.0

N;.;.;.;.;.;.;.

PhyloP100

2.1

PrimateAI

Benign

0.38

PROVEAN

Benign

-0.65

N;N;N;.;N;N;N;N

REVEL

Benign

0.16

Sift

Uncertain

0.0010

D;D;D;.;D;T;D;D

Sift4G

Uncertain

0.040

D;D;T;.;D;T;D;T

Polyphen

0.0060

B;B;B;.;.;.;.;.

Vest4

0.22

MutPred

0.23

Gain of MoRF binding (P = 0.0136);.;.;.;.;.;.;.;

MVP

0.52

MPC

0.070

ClinPred

0.22

GERP RS

6.2

Varity_R

0.11

gMVP

0.13

Mutation Taster

=90/10

polymorphism

(source)

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over