Genetic Variant CYYR1:p.Pro147Ser (chr21-26468530-G-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001320768.2(CYYR1):c.439C>T(p.Pro147Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000015 in 1,603,708 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. P147T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

CYYR1
NM_001320768.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.46

Publications

1 publications found

Variant links:

Genes affected

CYYR1 (HGNC:16274): (cysteine and tyrosine rich 1) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

CYYR1 links:

CYYR1-AS1 (HGNC:39560): (CYYR1 antisense RNA 1)

CYYR1-AS1 links:

LOC107985474 (HGNC:):

LOC107985474 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001320768.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CYYR1	NM_001320768.2	MANE Select	c.439C>T	p.Pro147Ser	missense	Exon 4 of 4	NP_001307697.2	Q96J86-2
CYYR1	NM_052954.5		c.436C>T	p.Pro146Ser	missense	Exon 4 of 4	NP_443186.3	Q96J86-1
CYYR1	NR_135472.2		n.952C>T		non_coding_transcript_exon	Exon 5 of 5

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CYYR1	ENST00000652641.2	MANE Select	c.439C>T	p.Pro147Ser	missense	Exon 4 of 4	ENSP00000498505.1	Q96J86-2
CYYR1	ENST00000299340.9	TSL:1	c.436C>T	p.Pro146Ser	missense	Exon 4 of 4	ENSP00000299340.4	Q96J86-1
CYYR1-AS1	ENST00000357401.3	TSL:2	n.187-35052G>A		intron	N/A

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152098

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000199

AC:

AN:

250932

AF XY:

0.00000737

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000265

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000131

AC:

AN:

1451610

Hom.:

Cov.:

AF XY:

0.0000125

AC XY:

AN XY:

722584

show subpopulations

African (AFR)

AF:

0.0000601

AC:

AN:

33276

American (AMR)

AF:

0.0000224

AC:

AN:

44698

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26064

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39648

South Asian (SAS)

AF:

0.00

AC:

AN:

86088

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53390

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5746

European-Non Finnish (NFE)

AF:

0.0000127

AC:

AN:

1102626

Other (OTH)

AF:

0.0000166

AC:

AN:

60074

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.504

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000329

AC:

AN:

152098

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74280

show subpopulations

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.0000483

AC:

AN:

41426

American (AMR)

AF:

0.0000655

AC:

AN:

15260

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5174

South Asian (SAS)

AF:

0.00

AC:

AN:

4816

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10612

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68026

Other (OTH)

AF:

0.00

AC:

AN:

2086

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.000268340), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.395

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000189

ExAC

AF:

0.0000165

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.49

BayesDel_addAF

Benign

-0.057

BayesDel_noAF

Benign

-0.24

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.088

Eigen

Pathogenic

0.71

Eigen_PC

Uncertain

0.66

FATHMM_MKL

Uncertain

0.88

LIST_S2

Benign

0.81

M_CAP

Benign

0.027

MetaRNN

Uncertain

0.44

MetaSVM

Benign

-0.70

MutationAssessor

Benign

1.1

PhyloP100

5.5

PrimateAI

Uncertain

0.63

PROVEAN

Pathogenic

-7.2

REVEL

Benign

0.20

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.54

MutPred

0.20

Gain of phosphorylation at P146 (P = 0.0172)

MVP

0.47

MPC

0.33

ClinPred

0.99

GERP RS

4.5

Varity_R

0.86

gMVP

0.53

Mutation Taster

=62/38

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over