NM_001972.4:c.377C>T
Variant summary
Our verdict is Pathogenic. The variant received 19 ACMG points: 19P and 0B. PM1PM2PM5PP2PP3_StrongPP5_Very_Strong
The NM_001972.4(ELANE):c.377C>T(p.Ser126Leu) 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 pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S126W) has been classified as Likely pathogenic.
Frequency
Consequence
NM_001972.4 missense
Scores
Clinical Significance
Conservation
Publications
- neutropeniaInheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
- cyclic hematopoiesisInheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet
- autosomal dominant severe congenital neutropeniaInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Pathogenic. The variant received 19 ACMG points.
Variant Effect in Transcripts
ACMG analysis was done for transcript: NM_001972.4. 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 |
|---|---|---|---|---|---|---|---|---|---|
| ELANE | NM_001972.4 | MANE Select | c.377C>T | p.Ser126Leu | missense | Exon 4 of 5 | NP_001963.1 |
Ensembl Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| ELANE | ENST00000263621.2 | TSL:1 MANE Select | c.377C>T | p.Ser126Leu | missense | Exon 4 of 5 | ENSP00000263621.1 | ||
| ELANE | ENST00000590230.5 | TSL:5 | c.377C>T | p.Ser126Leu | missense | Exon 5 of 6 | ENSP00000466090.1 |
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0AN: 1447158Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 720480
GnomAD4 genome Cov.: 32
ClinVar
Submissions by phenotype
Neutropenia, severe congenital, 1, autosomal dominant Pathogenic:4
Cyclical neutropenia Pathogenic:1Other:1
not specified Pathogenic:1
Cyclical neutropenia;C1859966:Neutropenia, severe congenital, 1, autosomal dominant Pathogenic:1
This sequence change replaces serine, which is neutral and polar, with leucine, which is neutral and non-polar, at codon 126 of the ELANE protein (p.Ser126Leu). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individuals with cyclic neutropenia and severe congenital neutropenia (PMID: 11001877, 14962902, 16079102, 16737875, 18611981, 20582973, 22758217, 23463630). It has also been observed to segregate with disease in related individuals. This variant is also known as p.Ser97Leu. ClinVar contains an entry for this variant (Variation ID: 16745). An algorithm developed to predict the effect of missense changes on protein structure and function outputs the following: PolyPhen-2: "Benign". The leucine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. Experimental studies are conflicting or provide insufficient evidence to determine the effect of this variant on ELANE function (PMID: 16551967, 26567890). For these reasons, this variant has been classified as Pathogenic.
Decreased total neutrophil count Pathogenic:1
This variant is classified as Pathogenic. Evidence in support of pathogenic classification: Variant is absent from gnomAD (v2, v3 and v4); This variant has strong previous evidence of pathogenicity in unrelated individuals. It has been classified as pathogenic by multiple clinical laboratories (ClinVar). This variant has also been reported in multiple unrelated individuals with cyclic neutropenia (CyN) or severe congenital neutropenia (SCN) (PMID: 38840904) Evidence in support of benign classification: Same amino acid change has been observed in placental mammals. Additional information: Variant is predicted to result in a missense amino acid change from serine to leucine; This variant is heterozygous; This gene is associated with autosomal dominant disease; The mechanism of disease for this gene is not clearly established. However, haploinsufficiency is unlikely a mechanism of disease (PMID: 33968054, 31248972); Variants in this gene are known to have variable expressivity. The same variant can lead to either cyclic or severe congenital neutropenia (PMID: 20301705); Inheritance information for this variant is not currently available in this individual.
ELANE-related disorder Pathogenic:1
The ELANE c.377C>T variant is predicted to result in the amino acid substitution p.Ser126Leu. This variant is also described using legacy nomenclature as p.Ser97Leu, has been reported in multiple individuals with congenital neutropenia (Dale et al. 2000. PubMed ID: 11001877; Sera et al. 2005. PubMed ID: 16079102; Newburger et al. 2010. PubMed ID: 20582973; Wali et al. 2012. PubMed ID: 22758217; Gong et al. 2018. PubMed ID: 30386760). This variant has not been reported in a large population database, indicating this variant is rare. This variant is interpreted as pathogenic.
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at