NM_000587.4:c.109T>A

Variant names:

• chr5-40931110-T-A
• NM_000587.4:c.109T>A

Variant summary

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

The NM_000587.4(C7):​c.109T>A​(p.Ser37Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000547 in 1,461,318 control chromosomes in the GnomAD database, with no homozygous occurrence. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000055 (0 hom.)
• Consequence: C7 NM_000587.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.09

Genes affected

C7 (HGNC:1346): (complement C7) This gene encodes a serum glycoprotein that forms a membrane attack complex together with complement components C5b, C6, C8, and C9 as part of the terminal complement pathway of the innate immune system. The protein encoded by this gene contains a cholesterol-dependent cytolysin/membrane attack complex/perforin-like (CDC/MACPF) domain and belongs to a large family of structurally related molecules that form pores involved in host immunity and bacterial pathogenesis. This protein initiates membrane attack complex formation by binding the C5b-C6 subcomplex and inserts into the phospholipid bilayer, serving as a membrane anchor. Mutations in this gene are associated with a rare disorder called C7 deficiency. [provided by RefSeq, Nov 2016]

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 rank	MANE	Protein	UniProt
C7	NM_000587.4	c.109T>A	p.Ser37Thr	missense_variant	Exon 3 of 18	ENST00000313164.10	NP_000578.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
C7	ENST00000313164.10	c.109T>A	p.Ser37Thr	missense_variant	Exon 3 of 18	1	NM_000587.4	ENSP00000322061.9

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000547 AC: 8 AN: 1461318 Hom.: 0 Cov.: 29 AF XY: 0.00000688 AC XY: 5 AN XY: 726970

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: 0.00000720

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.13
BayesDel_addAF	Benign	-0.067	T
BayesDel_noAF	Benign	-0.33
CADD	Benign	22
DANN	Uncertain	0.97
DEOGEN2	Benign	0.15	T
Eigen	Benign	-0.17
Eigen_PC	Benign	-0.049
FATHMM_MKL	Uncertain	0.88	D
LIST_S2	Benign	0.67	T
M_CAP	Benign	0.025	D
MetaRNN	Uncertain	0.51	D
MetaSVM	Benign	-0.91	T
MutationAssessor	Benign	1.9	L
PrimateAI	Benign	0.38	T
PROVEAN	Uncertain	-2.5	D
REVEL	Benign	0.13
Sift	Benign	0.052	T
Sift4G	Pathogenic	0.0	D
Polyphen		0.049	B
Vest4		0.51
MutPred		0.83		Loss of disorder (P = 0.2578);
MVP		0.65
MPC		0.072
ClinPred		0.94	D
GERP RS		3.0
Varity_R		0.32
gMVP		0.67

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.070		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: chr5-40931212;