2-27663931-C-T

Variant names:

• chr2-27663931-C-T
• rs762372675
• NM_018158.3:c.17C>T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_018158.3(SLC4A1AP):​c.17C>T​(p.Ser6Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,892 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S6C) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: SLC4A1AP NM_018158.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.61

Genes affected

SLC4A1AP (HGNC:13813): (solute carrier family 4 member 1 adaptor protein) Predicted to enable mRNA binding activity. Located in nucleoplasm and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

SUPT7L (HGNC:30632): (SPT7 like, STAGA complex subunit gamma) SUPT7L is a protein subunit of the human STAGA complex (SPT3; (MIM 602947)/TAF9 (MIM 600822)/GCN5 (MIM 602301) acetyltransferase complex), which is a chromatin-modifying multiprotein complex (Martinez et al., 2001 [PubMed 11564863]).[supplied by OMIM, Apr 2009]

ACMG classification

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=0.13134626).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC4A1AP	NM_018158.3	c.17C>T	p.Ser6Phe	missense_variant	Exon 1 of 14	ENST00000326019.11	NP_060628.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SLC4A1AP	ENST00000326019.11	c.17C>T	p.Ser6Phe	missense_variant	Exon 1 of 14	1	NM_018158.3	ENSP00000323837.7

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD3 exomes AF: 0.00000398 AC: 1 AN: 251458 Hom.: 0 AF XY: 0.00000736 AC XY: 1 AN XY: 135908

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000544

Gnomad SAS exome AF: 0.00

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: 1461892 Hom.: 0 Cov.: 29 AF XY: 0.00000138 AC XY: 1 AN XY: 727246

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: 0.0000116

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome Cov.: 31

ExAC AF: 0.00000824 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.092
BayesDel_addAF	Benign	-0.30	T
BayesDel_noAF	Benign	-0.51
CADD	Benign	19
DANN	Benign	0.95
DEOGEN2	Benign	0.018	T;T;.;T
Eigen	Benign	-0.64
Eigen_PC	Benign	-0.72
FATHMM_MKL	Benign	0.056	N
LIST_S2	Benign	0.72	.;T;T;T
M_CAP	Benign	0.016	T
MetaRNN	Benign	0.13	T;T;T;T
MetaSVM	Benign	-0.97	T
MutationAssessor	Benign	1.5	L;L;.;.
PrimateAI	Benign	0.32	T
PROVEAN	Benign	-1.5	N;.;.;.
REVEL	Benign	0.055
Sift	Uncertain	0.0070	D;.;.;.
Sift4G	Uncertain	0.013	D;D;D;.
Polyphen		0.41	B;B;.;.
Vest4		0.22
MutPred		0.27		Loss of disorder (P = 0.0044);Loss of disorder (P = 0.0044);.;.;
MVP		0.42
MPC		0.54
ClinPred		0.64	D
GERP RS		3.5
Varity_R		0.076
gMVP		0.19

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

Other links and lift over

dbSNP: rs762372675; hg19: chr2-27886798;