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GeneBe

21-26468530-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001320768.2(CYYR1):c.439C>A(p.Pro147Thr) variant causes a missense change. The variant allele was found at a frequency of 0.000118 in 1,603,706 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000085 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00012 ( 0 hom. )

Consequence

CYYR1
NM_001320768.2 missense

Scores

4
6
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.46
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-AS1 (HGNC:39560): (CYYR1 antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CYYR1NM_001320768.2 linkuse as main transcriptc.439C>A p.Pro147Thr missense_variant 4/4 ENST00000652641.2
CYYR1-AS1NR_135516.1 linkuse as main transcriptn.64-35052G>T intron_variant, non_coding_transcript_variant
LOC107985474XR_001755129.2 linkuse as main transcriptn.75-2221G>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CYYR1ENST00000652641.2 linkuse as main transcriptc.439C>A p.Pro147Thr missense_variant 4/4 NM_001320768.2 A2Q96J86-2
CYYR1-AS1ENST00000357401.3 linkuse as main transcriptn.187-35052G>T intron_variant, non_coding_transcript_variant 2
ENST00000429340.1 linkuse as main transcriptn.343-2030G>T intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
AF:
0.0000855
AC:
13
AN:
152098
Hom.:
0
Cov.:
32
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:
0.000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000837
AC:
21
AN:
250932
Hom.:
0
AF XY:
0.0000885
AC XY:
12
AN XY:
135608
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.0000579
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000150
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.000122
AC:
177
AN:
1451608
Hom.:
0
Cov.:
29
AF XY:
0.000120
AC XY:
87
AN XY:
722582
show subpopulations
Gnomad4 AFR exome
AF:
0.0000301
Gnomad4 AMR exome
AF:
0.0000447
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:
0.000152
Gnomad4 OTH exome
AF:
0.0000999
GnomAD4 genome
AF:
0.0000855
AC:
13
AN:
152098
Hom.:
0
Cov.:
32
AF XY:
0.0000942
AC XY:
7
AN XY:
74280
show subpopulations
Gnomad4 AFR
AF:
0.0000483
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:
0.000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000174
Hom.:
0
Bravo
AF:
0.000110
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000824
AC:
10
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.000327
EpiControl
AF:
0.000296

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 submitterclinical testingAmbry GeneticsFeb 27, 2023The c.436C>A (p.P146T) alteration is located in exon 4 (coding exon 4) of the CYYR1 gene. This alteration results from a C to A substitution at nucleotide position 436, causing the proline (P) at amino acid position 146 to be replaced by a threonine (T). 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
Uncertain
0.55
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Benign
-0.16
Cadd
Pathogenic
27
Dann
Uncertain
1.0
DEOGEN2
Benign
0.088
T
Eigen
Pathogenic
0.71
Eigen_PC
Uncertain
0.66
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Benign
0.80
T
M_CAP
Benign
0.023
T
MetaRNN
Uncertain
0.55
D
MetaSVM
Benign
-0.70
T
MutationAssessor
Benign
1.1
L
MutationTaster
Benign
0.99
D;D
PrimateAI
Uncertain
0.66
T
PROVEAN
Pathogenic
-7.3
D
REVEL
Benign
0.23
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.58
MVP
0.45
MPC
0.34
ClinPred
0.78
D
GERP RS
4.5
Varity_R
0.87
gMVP
0.54

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

LitVar

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

Other links and lift over

dbSNP: rs112866401; hg19: chr21-27840849; API