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GeneBe

21-26468601-A-G

Variant summary

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

The NM_001320768.2(CYYR1):c.368T>C(p.Met123Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000018 in 1,612,380 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

CYYR1
NM_001320768.2 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.55
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 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.13033557).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CYYR1NM_001320768.2 linkuse as main transcriptc.368T>C p.Met123Thr missense_variant 4/4 ENST00000652641.2
CYYR1-AS1NR_135516.1 linkuse as main transcriptn.64-34981A>G intron_variant, non_coding_transcript_variant
LOC107985474XR_001755129.2 linkuse as main transcriptn.75-2150A>G intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CYYR1ENST00000652641.2 linkuse as main transcriptc.368T>C p.Met123Thr missense_variant 4/4 NM_001320768.2 A2Q96J86-2
CYYR1-AS1ENST00000357401.3 linkuse as main transcriptn.187-34981A>G intron_variant, non_coding_transcript_variant 2
ENST00000429340.1 linkuse as main transcriptn.343-1959A>G intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
151904
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000194
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:
0.0000160
AC:
4
AN:
249262
Hom.:
0
AF XY:
0.00000743
AC XY:
1
AN XY:
134586
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000291
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000545
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000467
Gnomad NFE exome
AF:
0.00000889
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000185
AC:
27
AN:
1460476
Hom.:
0
Cov.:
30
AF XY:
0.0000179
AC XY:
13
AN XY:
726398
show subpopulations
Gnomad4 AFR exome
AF:
0.0000598
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.0000188
Gnomad4 NFE exome
AF:
0.0000171
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
151904
Hom.:
0
Cov.:
32
AF XY:
0.0000270
AC XY:
2
AN XY:
74174
show subpopulations
Gnomad4 AFR
AF:
0.0000242
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000194
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000329
Hom.:
0
Bravo
AF:
0.0000189
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.00000824
AC:
1

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 12, 2024The c.365T>C (p.M122T) alteration is located in exon 4 (coding exon 4) of the CYYR1 gene. This alteration results from a T to C substitution at nucleotide position 365, causing the methionine (M) at amino acid position 122 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
Benign
0.23
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.41
Cadd
Benign
20
Dann
Benign
0.70
DEOGEN2
Benign
0.053
T
Eigen
Benign
-0.38
Eigen_PC
Benign
-0.30
FATHMM_MKL
Uncertain
0.77
D
LIST_S2
Benign
0.48
T
M_CAP
Benign
0.0084
T
MetaRNN
Benign
0.13
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.55
N
MutationTaster
Benign
0.97
D;D
PrimateAI
Uncertain
0.60
T
PROVEAN
Uncertain
-4.1
D
REVEL
Benign
0.070
Sift
Benign
0.052
T
Sift4G
Benign
0.076
T
Polyphen
0.0
B
Vest4
0.33
MVP
0.20
MPC
0.054
ClinPred
0.24
T
GERP RS
2.9
Varity_R
0.23
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: rs376907495; hg19: chr21-27840920; API