chr12-64126026-T-A

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP7

The NM_020762.4(SRGAP1):​c.2274T>A​(p.Ser758=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,784 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

SRGAP1
NM_020762.4 synonymous

Scores

2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -2.51
Variant links:
Genes affected
SRGAP1 (HGNC:17382): (SLIT-ROBO Rho GTPase activating protein 1) The protein encoded by this gene is a GTPase activator, working with the GTPase CDC42 to negatively regulate neuronal migration. The encoded protein interacts with the transmembrane receptor ROBO1 to inactivate CDC42. [provided by RefSeq, Sep 2016]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.79).
BP7
Synonymous conserved (PhyloP=-2.51 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SRGAP1NM_020762.4 linkuse as main transcriptc.2274T>A p.Ser758= synonymous_variant 19/22 ENST00000355086.8 NP_065813.1
LOC105369798XR_945018.2 linkuse as main transcriptn.559+4148A>T intron_variant, non_coding_transcript_variant
SRGAP1NM_001346201.2 linkuse as main transcriptc.2205T>A p.Ser735= synonymous_variant 19/22 NP_001333130.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SRGAP1ENST00000355086.8 linkuse as main transcriptc.2274T>A p.Ser758= synonymous_variant 19/221 NM_020762.4 ENSP00000347198 A1Q7Z6B7-1
SRGAP1ENST00000543397.1 linkuse as main transcriptn.3560T>A non_coding_transcript_exon_variant 18/211
ENST00000658485.1 linkuse as main transcriptn.366+4148A>T intron_variant, non_coding_transcript_variant
SRGAP1ENST00000631006.3 linkuse as main transcriptc.2205T>A p.Ser735= synonymous_variant 19/225 ENSP00000485752 P3Q7Z6B7-2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251202
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135760
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461784
Hom.:
0
Cov.:
59
AF XY:
0.00000138
AC XY:
1
AN XY:
727192
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.79
CADD
Benign
0.29
DANN
Benign
0.69

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs789722; hg19: chr12-64519806; API