2-170954750-C-T

Variant summary

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

The NM_015530.5(GORASP2):c.667C>T(p.Pro223Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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: not found (cov: 32)
• Consequence: GORASP2 NM_015530.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.47

Genes affected

GORASP2 (HGNC:17500): (golgi reassembly stacking protein 2) This gene encodes a member of the Golgi reassembly stacking protein family. These proteins may play a role in the stacking of Golgi cisternae and Golgi ribbon formation, as well as Golgi fragmentation during apoptosis or mitosis. The encoded protein also plays a role in the intracellular transport of transforming growth factor alpha and may function as a molecular chaperone. A pseudogene of this gene is located on the short arm of chromosome 2. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Jan 2011]

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=0.20074788).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GORASP2	NM_015530.5	c.667C>T	p.Pro223Ser	missense_variant	6/10	ENST00000234160.5
GORASP2	NM_001201428.2	c.463C>T	p.Pro155Ser	missense_variant	6/10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GORASP2	ENST00000234160.5	c.667C>T	p.Pro223Ser	missense_variant	6/10	1	NM_015530.5	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

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

May 30, 2023

The c.667C>T (p.P223S) alteration is located in exon 6 (coding exon 6) of the GORASP2 gene. This alteration results from a C to T substitution at nucleotide position 667, causing the proline (P) at amino acid position 223 to be replaced by a serine (S). 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	0.064
BayesDel_addAF	Benign	-0.25	T
BayesDel_noAF	Benign	-0.60
Cadd	Benign	21
Dann	Uncertain	0.99
DEOGEN2	Benign	0.22	T
Eigen	Benign	-0.11
Eigen_PC	Benign	0.063
FATHMM_MKL	Uncertain	0.88	D
LIST_S2	Benign	0.73	T
M_CAP	Benign	0.011	T
MetaRNN	Benign	0.20	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Uncertain	2.0	M
MutationTaster	Benign	0.99	D;D
PrimateAI	Benign	0.44	T
PROVEAN	Uncertain	-2.9	D
REVEL	Benign	0.12
Sift	Benign	0.14	T
Sift4G	Benign	0.17	T
Polyphen		0.020	B
Vest4		0.098
MutPred		0.74		Gain of catalytic residue at P223 (P = 0.0554);
MVP		0.40
MPC		0.14
ClinPred		0.83	D
GERP RS		4.9
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.26
gMVP		0.74

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-171811260;