NM_030960.3:c.400G>C

Variant names:

• chr6-88058748-G-C
• NM_030960.3:c.400G>C

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_030960.3(SPACA1):​c.400G>C​(p.Val134Leu) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: SPACA1 NM_030960.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.39
• Publications: 0 publications found

Genes affected

SPACA1 (HGNC:14967): (sperm acrosome associated 1) The correlation of anti-sperm antibodies with cases of unexplained infertility implicates a role for these antibodies in blocking fertilization. Improved diagnosis and treatment of immunologic infertility, as well as identification of proteins for targeted contraception, are dependent on the identification and characterization of relevant sperm antigens. The protein expressed by this gene is recognized by anti-sperm antibodies from infertile males. Furthermore, antibodies generated against the recombinant protein block in vitro fertilization. This protein localizes to the acrosomal membrane of spermatids and mature spermatozoa where it is thought to play a role in acrosomal morphogenesis and in sperm-egg binding and fusion, respectively. [provided by RefSeq, Jul 2008]

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

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

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_030960.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SPACA1	NM_030960.3	MANE Select	c.400G>C	p.Val134Leu	missense	Exon 4 of 7	NP_112222.1	Q9HBV2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SPACA1	ENST00000237201.2	TSL:1 MANE Select	c.400G>C	p.Val134Leu	missense	Exon 4 of 7	ENSP00000237201.1	Q9HBV2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.55
BayesDel_addAF	Benign	-0.092	T
BayesDel_noAF	Benign	-0.37
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.10	T
Eigen	Uncertain	0.58
Eigen_PC	Uncertain	0.61
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Benign	0.77	T
M_CAP	Benign	0.0076	T
MetaRNN	Uncertain	0.44	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.3	M
PhyloP100		4.4
PrimateAI	Uncertain	0.50	T
PROVEAN	Benign	-2.0	N
REVEL	Benign	0.12
Sift	Uncertain	0.025	D
Sift4G	Uncertain	0.050	T
Polyphen		0.97	D
Vest4		0.56
MutPred		0.23		Loss of sheet (P = 0.0181)
MVP		0.45
MPC		0.31
ClinPred		0.96	D
GERP RS		5.5
Varity_R		0.21
gMVP		0.34
Mutation Taster		=83/17	polymorphism

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

Other links and lift over

hg19: chr6-88768466;