X-2726261-C-T

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6BP7BA1

The NM_002414.5(CD99):​c.363C>T​(p.Ala121Ala) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.137 in 1,601,818 control chromosomes in the GnomAD database, including 15,481 homozygotes. There are 95,822 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in Lovd as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.13 ( 1258 hom., 8308 hem., cov: 32)
Exomes 𝑓: 0.14 ( 14223 hom. 87514 hem. )

Consequence

CD99
NM_002414.5 splice_region, synonymous

Scores

2
Splicing: ADA: 0.000006554
2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -2.22
Variant links:
Genes affected
CD99 (HGNC:7082): (CD99 molecule (Xg blood group)) The protein encoded by this gene is a cell surface glycoprotein involved in leukocyte migration, T-cell adhesion, ganglioside GM1 and transmembrane protein transport, and T-cell death by a caspase-independent pathway. In addition, the encoded protein may have the ability to rearrange the actin cytoskeleton and may also act as an oncosuppressor in osteosarcoma. This gene is found in the pseudoautosomal region of chromosomes X and Y and escapes X-chromosome inactivation. There is a related pseudogene located immediately adjacent to this locus. [provided by RefSeq, Mar 2016]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-1.07).
BP6
Variant X-2726261-C-T is Benign according to our data. Variant chrX-2726261-C-T is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=-2.22 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.161 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CD99NM_002414.5 linkuse as main transcriptc.363C>T p.Ala121Ala splice_region_variant, synonymous_variant 8/10 ENST00000381192.10 NP_002405.1 P14209-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CD99ENST00000381192.10 linkuse as main transcriptc.363C>T p.Ala121Ala splice_region_variant, synonymous_variant 8/101 NM_002414.5 ENSP00000370588.3 P14209-1
CD99ENST00000381184.6 linkuse as main transcriptc.363C>T p.Ala121Ala splice_region_variant, synonymous_variant 8/105 ENSP00000370579.1 A8MQT7

Frequencies

GnomAD3 genomes
AF:
0.127
AC:
19220
AN:
151928
Hom.:
1261
Cov.:
32
AF XY:
0.112
AC XY:
8289
AN XY:
74192
show subpopulations
Gnomad AFR
AF:
0.0903
Gnomad AMI
AF:
0.0789
Gnomad AMR
AF:
0.166
Gnomad ASJ
AF:
0.149
Gnomad EAS
AF:
0.0797
Gnomad SAS
AF:
0.140
Gnomad FIN
AF:
0.113
Gnomad MID
AF:
0.154
Gnomad NFE
AF:
0.143
Gnomad OTH
AF:
0.147
GnomAD3 exomes
AF:
0.143
AC:
35827
AN:
250760
Hom.:
2807
AF XY:
0.129
AC XY:
17541
AN XY:
135510
show subpopulations
Gnomad AFR exome
AF:
0.0886
Gnomad AMR exome
AF:
0.231
Gnomad ASJ exome
AF:
0.156
Gnomad EAS exome
AF:
0.0777
Gnomad SAS exome
AF:
0.143
Gnomad FIN exome
AF:
0.123
Gnomad NFE exome
AF:
0.137
Gnomad OTH exome
AF:
0.149
GnomAD4 exome
AF:
0.138
AC:
199616
AN:
1449770
Hom.:
14223
Cov.:
30
AF XY:
0.121
AC XY:
87514
AN XY:
721614
show subpopulations
Gnomad4 AFR exome
AF:
0.0899
Gnomad4 AMR exome
AF:
0.225
Gnomad4 ASJ exome
AF:
0.153
Gnomad4 EAS exome
AF:
0.0576
Gnomad4 SAS exome
AF:
0.146
Gnomad4 FIN exome
AF:
0.128
Gnomad4 NFE exome
AF:
0.138
Gnomad4 OTH exome
AF:
0.139
GnomAD4 genome
AF:
0.126
AC:
19224
AN:
152048
Hom.:
1258
Cov.:
32
AF XY:
0.112
AC XY:
8308
AN XY:
74320
show subpopulations
Gnomad4 AFR
AF:
0.0901
Gnomad4 AMR
AF:
0.167
Gnomad4 ASJ
AF:
0.149
Gnomad4 EAS
AF:
0.0799
Gnomad4 SAS
AF:
0.141
Gnomad4 FIN
AF:
0.113
Gnomad4 NFE
AF:
0.143
Gnomad4 OTH
AF:
0.145
Bravo
AF:
0.131
EpiCase
AF:
0.139
EpiControl
AF:
0.139

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-1.1
CADD
Benign
0.013
DANN
Benign
0.53
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.7

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.0000066
dbscSNV1_RF
Benign
0.0
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: rs1136470; hg19: chrX-2644302; COSMIC: COSV66989192; COSMIC: COSV66989192; API