17-28649212-T-A

Variant summary

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

The NM_006923.4(SDF2):​c.413A>T​(p.Asn138Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000192 in 1,614,066 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

SDF2
NM_006923.4 missense

Scores

7
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.19
Variant links:
Genes affected
SDF2 (HGNC:10675): (stromal cell derived factor 2) The protein encoded by this gene is believed to be a secretory protein. It has regions of similarity to hydrophilic segments of yeast mannosyltransferases. Its expression is ubiquitous and the gene appears to be relatively conserved among mammals. Alternate splicing results in both coding and non-coding variants. A pseudogene of this gene is located on chromosome 15. [provided by RefSeq, Dec 2011]

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=0.16415876).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SDF2NM_006923.4 linkc.413A>T p.Asn138Ile missense_variant 3/3 ENST00000247020.9 NP_008854.2 Q99470Q6IBU4
SDF2XM_011525106.3 linkc.470A>T p.Asn157Ile missense_variant 5/5 XP_011523408.1
SDF2XM_047436516.1 linkc.413A>T p.Asn138Ile missense_variant 4/4 XP_047292472.1
SDF2NR_045585.2 linkn.411A>T non_coding_transcript_exon_variant 3/3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SDF2ENST00000247020.9 linkc.413A>T p.Asn138Ile missense_variant 3/31 NM_006923.4 ENSP00000247020.3 Q99470

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152196
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000159
AC:
4
AN:
251488
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135916
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:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000264
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000192
AC:
28
AN:
1461870
Hom.:
0
Cov.:
31
AF XY:
0.0000151
AC XY:
11
AN XY:
727242
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000234
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152196
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74358
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000451
Hom.:
0
Bravo
AF:
0.0000151
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

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 GeneticsOct 08, 2024The c.413A>T (p.N138I) alteration is located in exon 3 (coding exon 3) of the SDF2 gene. This alteration results from a A to T substitution at nucleotide position 413, causing the asparagine (N) at amino acid position 138 to be replaced by an isoleucine (I). 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
0.22
BayesDel_addAF
Benign
-0.082
T
BayesDel_noAF
Benign
-0.25
CADD
Uncertain
23
DANN
Uncertain
0.99
DEOGEN2
Benign
0.18
T
Eigen
Benign
-0.26
Eigen_PC
Benign
-0.12
FATHMM_MKL
Uncertain
0.87
D
LIST_S2
Uncertain
0.86
D
M_CAP
Benign
0.078
D
MetaRNN
Benign
0.16
T
MetaSVM
Benign
-0.49
T
MutationAssessor
Benign
0.53
N
PrimateAI
Uncertain
0.50
T
PROVEAN
Uncertain
-3.1
D
REVEL
Benign
0.22
Sift
Uncertain
0.028
D
Sift4G
Uncertain
0.023
D
Polyphen
0.11
B
Vest4
0.28
MutPred
0.43
Gain of catalytic residue at P140 (P = 0.0305);
MVP
0.53
MPC
0.56
ClinPred
0.38
T
GERP RS
3.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.15
gMVP
0.50

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: rs776899296; hg19: chr17-26976230; API