1-66633084-G-C

Position:

• chr1-66633084-G-C

Variant summary

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

The NM_032291.4(SGIP1):​c.89G>C​(p.Arg30Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000722 in 1,384,836 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 7.2e-7 (0 hom.)
• Consequence: SGIP1 NM_032291.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 8.36

Genes affected

SGIP1 (HGNC:25412): (SH3GL interacting endocytic adaptor 1) SGIP1 functions as an endocytic protein that affects signaling by receptors in neuronal systems involved in energy homeostasis via its interaction with endophilins (see SH3GL3; MIM 603362) (Trevaskis et al., 2005 [PubMed 15919751] and Uezu et al., 2007 [PubMed 17626015]).[supplied by OMIM, Mar 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SGIP1	NM_032291.4	c.89G>C	p.Arg30Thr	missense_variant	3/25	ENST00000371037.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SGIP1	ENST00000371037.9	c.89G>C	p.Arg30Thr	missense_variant	3/25	1	NM_032291.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 7.22e-7 AC: 1 AN: 1384836 Hom.: 0 Cov.: 24 AF XY: 0.00000144 AC XY: 1 AN XY: 693114

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: 9.59e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 28, 2023

The c.89G>C (p.R30T) alteration is located in exon 3 (coding exon 3) of the SGIP1 gene. This alteration results from a G to C substitution at nucleotide position 89, causing the arginine (R) at amino acid position 30 to be replaced by a threonine (T). 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	Pathogenic	0.85
BayesDel_addAF	Pathogenic	0.22	D
BayesDel_noAF	Uncertain	0.080
CADD	Pathogenic	30
DANN	Uncertain	0.98
DEOGEN2	Benign	0.027	.;.;T;T
Eigen	Uncertain	0.68
Eigen_PC	Pathogenic	0.72
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Pathogenic	0.98	D;D;D;D
M_CAP	Benign	0.0076	T
MetaRNN	Uncertain	0.44	T;T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.8	L;L;.;L
MutationTaster	Benign	1.0	D;D;D;D;N
PrimateAI	Uncertain	0.79	T
PROVEAN	Benign	-2.0	N;N;N;N
REVEL	Uncertain	0.34
Sift	Uncertain	0.013	D;T;D;D
Sift4G	Benign	0.21	T;T;D;T
Polyphen		0.98	.;.;.;D
Vest4		0.52
MutPred		0.14		Gain of glycosylation at R30 (P = 0.0205);Gain of glycosylation at R30 (P = 0.0205);Gain of glycosylation at R30 (P = 0.0205);Gain of glycosylation at R30 (P = 0.0205);
MVP		0.37
MPC		0.65
ClinPred		0.85	D
GERP RS		5.8
Varity_R		0.21
gMVP		0.35

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.18		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr1-67098767;