rs748552493
Positions:
Variant summary
Our verdict is Benign. Variant got -7 ACMG points: 0P and 7B. BP4_StrongBP6_ModerateBP7
The NM_000071.3(CBS):c.1065G>C(p.Ala355Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).
Frequency
Genomes: not found (cov: 0)
Consequence
CBS
NM_000071.3 synonymous
NM_000071.3 synonymous
Scores
2
Clinical Significance
Conservation
PhyloP100: -2.50
Genes affected
CBS (HGNC:1550): (cystathionine beta-synthase) The protein encoded by this gene acts as a homotetramer to catalyze the conversion of homocysteine to cystathionine, the first step in the transsulfuration pathway. The encoded protein is allosterically activated by adenosyl-methionine and uses pyridoxal phosphate as a cofactor. Defects in this gene can cause cystathionine beta-synthase deficiency (CBSD), which can lead to homocystinuria. This gene is a major contributor to cellular hydrogen sulfide production. Multiple alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Feb 2016]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -7 ACMG points.
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.82).
BP6
Variant 21-43060521-C-G is Benign according to our data. Variant chr21-43060521-C-G is described in ClinVar as [Likely_benign]. Clinvar id is 766244.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=-2.5 with no splicing effect.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes Cov.: 0
GnomAD3 genomes
Cov.:
0
GnomAD4 exome Cov.: 0
GnomAD4 exome
Cov.:
0
GnomAD4 genome Cov.: 0
GnomAD4 genome
Cov.:
0
ClinVar
Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
HYPERHOMOCYSTEINEMIA, THROMBOTIC, CBS-RELATED Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Aug 20, 2018 | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at