rs8192340

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_001317778.2(SFTPC):​c.42+35G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.064 in 1,602,206 control chromosomes in the GnomAD database, including 4,099 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.058 ( 432 hom., cov: 32)
Exomes 𝑓: 0.065 ( 3667 hom. )

Consequence

SFTPC
NM_001317778.2 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.0900

Publications

6 publications found
Variant links:
Genes affected
SFTPC (HGNC:10802): (surfactant protein C) This gene encodes the pulmonary-associated surfactant protein C (SPC), an extremely hydrophobic surfactant protein essential for lung function and homeostasis after birth. Pulmonary surfactant is a surface-active lipoprotein complex composed of 90% lipids and 10% proteins which include plasma proteins and apolipoproteins SPA, SPB, SPC and SPD. The surfactant is secreted by the alveolar cells of the lung and maintains the stability of pulmonary tissue by reducing the surface tension of fluids that coat the lung. Multiple mutations in this gene have been identified, which cause pulmonary surfactant metabolism dysfunction type 2, also called pulmonary alveolar proteinosis due to surfactant protein C deficiency, and are associated with interstitial lung disease in older infants, children, and adults. Alternatively spliced transcript variants encoding different protein isoforms have been identified.[provided by RefSeq, Feb 2010]
SFTPC Gene-Disease associations (from GenCC):
  • SFTPC-related interstitial lung disease
    Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
  • surfactant metabolism dysfunction, pulmonary, 2
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Genomics England PanelApp, PanelApp Australia, Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae)
  • chronic respiratory distress with surfactant metabolism deficiency
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.78).
BP6
Variant 8-22161905-G-A is Benign according to our data. Variant chr8-22161905-G-A is described in ClinVar as Benign. ClinVar VariationId is 1268807.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.0655 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001317778.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SFTPC
NM_001317778.2
MANE Select
c.42+35G>A
intron
N/ANP_001304707.1P11686-2
SFTPC
NM_001172410.2
c.42+35G>A
intron
N/ANP_001165881.1A0A0S2Z4Q0
SFTPC
NM_001385653.1
c.42+35G>A
intron
N/ANP_001372582.1P11686-1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SFTPC
ENST00000679463.1
MANE Select
c.42+35G>A
intron
N/AENSP00000505152.1P11686-2
SFTPC
ENST00000318561.7
TSL:1
c.42+35G>A
intron
N/AENSP00000316152.3P11686-1
SFTPC
ENST00000521315.5
TSL:1
c.42+35G>A
intron
N/AENSP00000430410.1P11686-2

Frequencies

GnomAD3 genomes
AF:
0.0579
AC:
8814
AN:
152106
Hom.:
431
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0285
Gnomad AMI
AF:
0.123
Gnomad AMR
AF:
0.0371
Gnomad ASJ
AF:
0.0276
Gnomad EAS
AF:
0.00309
Gnomad SAS
AF:
0.0284
Gnomad FIN
AF:
0.193
Gnomad MID
AF:
0.0222
Gnomad NFE
AF:
0.0672
Gnomad OTH
AF:
0.0407
GnomAD2 exomes
AF:
0.0580
AC:
14347
AN:
247352
AF XY:
0.0585
show subpopulations
Gnomad AFR exome
AF:
0.0277
Gnomad AMR exome
AF:
0.0304
Gnomad ASJ exome
AF:
0.0244
Gnomad EAS exome
AF:
0.00267
Gnomad FIN exome
AF:
0.180
Gnomad NFE exome
AF:
0.0670
Gnomad OTH exome
AF:
0.0608
GnomAD4 exome
AF:
0.0646
AC:
93734
AN:
1449982
Hom.:
3667
Cov.:
28
AF XY:
0.0635
AC XY:
45853
AN XY:
721966
show subpopulations
African (AFR)
AF:
0.0277
AC:
920
AN:
33240
American (AMR)
AF:
0.0314
AC:
1405
AN:
44700
Ashkenazi Jewish (ASJ)
AF:
0.0259
AC:
675
AN:
26056
East Asian (EAS)
AF:
0.00280
AC:
111
AN:
39642
South Asian (SAS)
AF:
0.0315
AC:
2712
AN:
86068
European-Finnish (FIN)
AF:
0.173
AC:
9114
AN:
52820
Middle Eastern (MID)
AF:
0.0275
AC:
158
AN:
5738
European-Non Finnish (NFE)
AF:
0.0683
AC:
75259
AN:
1101690
Other (OTH)
AF:
0.0563
AC:
3380
AN:
60028
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
Heterozygous variant carriers
0
4255
8511
12766
17022
21277
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
2734
5468
8202
10936
13670
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0579
AC:
8817
AN:
152224
Hom.:
432
Cov.:
32
AF XY:
0.0628
AC XY:
4671
AN XY:
74402
show subpopulations
African (AFR)
AF:
0.0286
AC:
1187
AN:
41558
American (AMR)
AF:
0.0369
AC:
564
AN:
15294
Ashkenazi Jewish (ASJ)
AF:
0.0276
AC:
96
AN:
3472
East Asian (EAS)
AF:
0.00310
AC:
16
AN:
5164
South Asian (SAS)
AF:
0.0282
AC:
136
AN:
4822
European-Finnish (FIN)
AF:
0.193
AC:
2049
AN:
10600
Middle Eastern (MID)
AF:
0.0238
AC:
7
AN:
294
European-Non Finnish (NFE)
AF:
0.0671
AC:
4564
AN:
67996
Other (OTH)
AF:
0.0407
AC:
86
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.510
Heterozygous variant carriers
0
430
859
1289
1718
2148
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
104
208
312
416
520
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0580
Hom.:
495
Bravo
AF:
0.0450
Asia WGS
AF:
0.0200
AC:
69
AN:
3478

ClinVar

ClinVar submissions
Significance:Benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
2
not provided (2)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.78
CADD
Benign
0.48
DANN
Benign
0.41
PhyloP100
0.090
PromoterAI
-0.043
Neutral
Mutation Taster
=100/0
polymorphism (auto)

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

Other links and lift over

dbSNP: rs8192340; hg19: chr8-22019418; API