rs1136451

Variant names:

• chr10-79612325-A-C
• rs1136451
• NM_005411.5:c.186A>C

Your query was ambiguous. Multiple possible variants found:

• chr10-79612325-A-C
• chr10-79612325-A-G

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_005411.5(SFTPA1):​c.186A>C​(p.Pro62Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,580 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. P62P) has been classified as Benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: SFTPA1 NM_005411.5 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.93
• Publications: 34 publications found

Genes affected

SFTPA1 (HGNC:10798): (surfactant protein A1) This gene encodes a lung surfactant protein that is a member of a subfamily of C-type lectins called collectins. The encoded protein binds specific carbohydrate moieties found on lipids and on the surface of microorganisms. This protein plays an essential role in surfactant homeostasis and in the defense against respiratory pathogens. Mutations in this gene are associated with idiopathic pulmonary fibrosis. Alternate splicing results in multiple transcript variants. [provided by RefSeq, May 2010]

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.75).
• BP7: Synonymous conserved (PhyloP=-2.93 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005411.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SFTPA1	NM_005411.5	MANE Select	c.186A>C	p.Pro62Pro	synonymous	Exon 4 of 6	NP_005402.3
	SFTPA1	NM_001093770.3		c.231A>C	p.Pro77Pro	synonymous	Exon 4 of 6	NP_001087239.2
	SFTPA1	NM_001164644.2		c.186A>C	p.Pro62Pro	synonymous	Exon 4 of 6	NP_001158116.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SFTPA1	ENST00000398636.8	TSL:1 MANE Select	c.186A>C	p.Pro62Pro	synonymous	Exon 4 of 6	ENSP00000381633.3
	SFTPA1	ENST00000419470.6	TSL:1	c.231A>C	p.Pro77Pro	synonymous	Exon 4 of 6	ENSP00000397082.2
	SFTPA1	ENST00000428376.6	TSL:1	c.186A>C	p.Pro62Pro	synonymous	Exon 3 of 5	ENSP00000411102.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461580 Hom.: 0 Cov.: 35 AF XY: 0.00000138 AC XY: 1 AN XY: 727094

African (AFR) AF: 0.0000299 AC: 1 AN: 33476

American (AMR) AF: 0.00 AC: 0 AN: 44714

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26128

East Asian (EAS) AF: 0.00 AC: 0 AN: 39684

South Asian (SAS) AF: 0.00 AC: 0 AN: 86250

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53374

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5760

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111814

Other (OTH) AF: 0.00 AC: 0 AN: 60380

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 740

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.75
CADD	Benign	0.49
DANN	Benign	0.40
PhyloP100		-2.9

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

dbSNP: rs1136451; hg19: chr10-81372081;