Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2
The NM_001257293.2(HNRNPH1):c.1105G>A(p.Gly369Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000434 in 1,613,962 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
HNRNPH1 (HGNC:5041): (heterogeneous nuclear ribonucleoprotein H1) This gene encodes a member of a subfamily of ubiquitously expressed heterogeneous nuclear ribonucleoproteins (hnRNPs). The hnRNPs are RNA binding proteins that complex with heterogeneous nuclear RNA. These proteins are associated with pre-mRNAs in the nucleus and appear to influence pre-mRNA processing and other aspects of mRNA metabolism and transport. While all of the hnRNPs are present in the nucleus, some may shuttle between the nucleus and the cytoplasm. The hnRNP proteins have distinct nucleic acid binding properties. The protein encoded by this gene has three repeats of quasi-RRM domains that bind to RNA and is very similar to the family member HNRPF. This gene may be associated with hereditary lymphedema type I. Alternatively spliced transcript variants have been described [provided by RefSeq, Mar 2012]
Uncertain significance, criteria provided, single submitter
clinical testing
Ambry Genetics
Apr 07, 2023
The c.1105G>A (p.G369S) alteration is located in exon 10 (coding exon 9) of the HNRNPH1 gene. This alteration results from a G to A substitution at nucleotide position 1105, causing the glycine (G) at amino acid position 369 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Gain of glycosylation at G369 (P = 0.0077);Gain of glycosylation at G369 (P = 0.0077);Gain of glycosylation at G369 (P = 0.0077);Gain of glycosylation at G369 (P = 0.0077);Gain of glycosylation at G369 (P = 0.0077);.;