Alport syndrome-intellectual disability-midface hypoplasia-elliptocytosis syndrome

A rare constitutional hemolytic anemia that is characterised by the association of Alport syndrome, midface hypoplasia, intellectual deficit and elliptocytosis. It has been described in two families. The syndrome is transmitted as an X-linked trait is caused by a contiguous gene deletion in Xq22.3 involving several genes including <i>COL4A5</i>, <i>FACL4</i> and <i>AMMECR1</i>.



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Total: 2 (papers)

  


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Matched Phenotype  Gene  Mutation  MeSH
Rank
(Similarity)
PMID
(PMCID)
1
(4.0%)
30737907
Xq22.3q23 microdeletion harboring TMEM164 and AMMECR1 genes: Two case reports confirming a recognizable phenotype with short stature, midface hypoplasia, intellectual delay, and elliptocytosis.
Poreau B, Ramond F, Harbuz R, Satre V, Barro C, Vettier C, Adouard V, Thevenon J, Jouk PS, Coutton C, Touraine R, Dieterich K.
Am J Med Genet A. 2019;179(4):650-654.
Intellectual disability
AMMECR1 SNORD96B
Child Chromosome Deletion Chromosomes, Human, X Craniofacial Abnormalities Elliptocytosis, Hereditary Genetic Diseases, X-Linked Homo sapiens Intellectual Disability Male Membrane Proteins Proteins
1
(4.0%)
23520119
Xq22.3-q23 deletion including ACSL4 in a patient with intellectual disability.
Gazou A, Riess A, Grasshoff U, Schaferhoff K, Bonin M, Jauch A, Riess O, Tzschach A.
Am J Med Genet A. 2013;161A(4):860-4.
Intellectual disability
ACSL4 AMMECR1 COL4A5 GUCY2F KCNE5 MIR3978 NXT2 RTL9 SNORD96B TMEM164
Child Chromosome Deletion Chromosomes, Human, X Coenzyme A Ligases Facies Fluorescent in Situ Hybridization Gene Deletion Genome-Wide Association Study Genotype Homo sapiens Intellectual Disability Male Phenotype Single Nucleotide Polymorphism
        

Phenotype(s) retrieved from Orphanet

    Total: 22

HPO ID Term Frequency
HP:0000093 Proteinuria Very frequent (99-80%)
HP:0000272 Malar flattening Very frequent (99-80%)
HP:0000463 Anteverted nares Very frequent (99-80%)
HP:0000494 Downslanted palpebral fissures Very frequent (99-80%)
HP:0001595 Abnormal hair morphology Very frequent (99-80%)
HP:0002907 Microscopic hematuria Very frequent (99-80%)
HP:0005280 Depressed nasal bridge Very frequent (99-80%)
HP:0010864 Intellectual disability, severe Very frequent (99-80%)
HP:0100820 Glomerulopathy Very frequent (99-80%)
HP:0000083 Renal insufficiency Frequent (79-30%)
HP:0000233 Thin vermilion border Frequent (79-30%)
HP:0000365 Hearing impairment Frequent (79-30%)
HP:0001182 Tapered finger Frequent (79-30%)
HP:0001252 Muscular hypotonia Frequent (79-30%)
HP:0004445 Elliptocytosis Frequent (79-30%)
HP:0012471 Thick vermilion border Frequent (79-30%)
HP:0000486 Strabismus Occasional (29-5%)
HP:0000545 Myopia Occasional (29-5%)
HP:0000944 Abnormality of the metaphysis Occasional (29-5%)
HP:0001643 Patent ductus arteriosus Occasional (29-5%)
HP:0001646 Abnormal aortic valve morphology Occasional (29-5%)
HP:0011069 Increased number of teeth Occasional (29-5%)


Phenotype(s) retrieved from case reports

    Total: 2

HPO ID Term # of case reports
HP:0001249 Intellectual disability 2
HP:0004445 Elliptocytosis 2


Causative gene(s) retrieved from Orphanet

    Total: 4

Gene Symbol Gene Name Entrez Gene ID
AMMECR1 Alport syndrome, mental retardation, midface hypoplasia and elliptocytosis chromosomal region gene 1 9949
ACSL4 acyl-CoA synthetase long chain family member 4 2182
AMMECR1 Alport syndrome, mental retardation, midface hypoplasia and elliptocytosis chromosomal region gene 1 9949
KCNE5 potassium voltage-gated channel subfamily E regulatory subunit 5 23630