2q23.1 microdeletion syndrome

The newly described 2q23.1 microdeletion syndrome includes severe intellectual deficit with pronounced speech delay, behavioral abnormalities including hyperactivity and inappropriate laughter, short stature and seizures.



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Narrow down the case reports



Total: 3 (papers)

  


(per page)
Matched Phenotype  Gene  Mutation  MeSH
Rank
(Similarity)
PMID
(PMCID)
1
(39.0%)
22407754
Neurodevelopmental features in 2q23.1 microdeletion syndrome: report of a new patient with intractable seizures and review of literature.
Motobayashi M, Nishimura-Tadaki A, Inaba Y, Kosho T, Miyatake S, Niimi T, Nishimura T, Wakui K, Fukushima Y, Matsumoto N, Koike K.
Am J Med Genet A. 2012;158A(4):861-8.
Microcephaly
MBD5
Child, Preschool Chromosomes, Human, Pair 2 DNA-Binding Proteins Developmental Disabilities Homo sapiens Intellectual Disability Male Microcephaly Oligonucleotide Array Sequence Analysis Seizures Sequence Deletion
1
(39.0%)
19904302
Haploinsufficiency of MBD5 associated with a syndrome involving microcephaly, intellectual disabilities, severe speech impairment, and seizures.
Williams SR, Mullegama SV, Rosenfeld JA, Dagli AI, Hatchwell E, Allen WP, Williams CA, Elsea SH.
Eur J Hum Genet. 2010;18(4):436-41.
Microcephaly
EPC2 MBD5
Adult Child Child, Preschool Chromosome Deletion Chromosomes, Human, Pair 2 DNA-Binding Proteins Females Fluorescent in Situ Hybridization Haplotypes Homo sapiens Intellectual Disability Male Microcephaly Oligonucleotide Array Sequence Analysis RNA, Messenger Reverse Transcriptase Polymerase Chain Reaction Seizures Speech Disorders Syndrome Young Adult
3
(4.0%)
22085900
Severe intellectual disability and autistic features associated with microduplication 2q23.1.
Chung BH, Mullegama S, Marshall CR, Lionel AC, Weksberg R, Dupuis L, Brick L, Li C, Scherer SW, Aradhya S, Stavropoulos DJ, Elsea SH, Mendoza-Londono R.
Eur J Hum Genet. 2012;20(4):398-403.
Intellectual disability
ACVR2A EPC2 KIF5C LYPD6 LYPD6B MBD5 ORC4
Chromosomes, Human, Pair 2 Cultured Cells DNA-Binding Proteins Developmental Disabilities Females Gene Duplication Homo sapiens Intellectual Disability Male Oligonucleotide Array Sequence Analysis
        

Phenotype(s) retrieved from Orphanet

    Total: 32

HPO ID Term Frequency
HP:0000733 Stereotypy Very frequent (99-80%)
HP:0000750 Delayed speech and language development Very frequent (99-80%)
HP:0001250 Seizures Very frequent (99-80%)
HP:0010864 Intellectual disability, severe Very frequent (99-80%)
HP:0000194 Open mouth Frequent (79-30%)
HP:0000232 Everted lower lip vermilion Frequent (79-30%)
HP:0000248 Brachycephaly Frequent (79-30%)
HP:0000252 Microcephaly Frequent (79-30%)
HP:0000272 Malar flattening Frequent (79-30%)
HP:0000280 Coarse facial features Frequent (79-30%)
HP:0000337 Broad forehead Frequent (79-30%)
HP:0000664 Synophrys Frequent (79-30%)
HP:0000749 Paroxysmal bursts of laughter Frequent (79-30%)
HP:0000752 Hyperactivity Frequent (79-30%)
HP:0001251 Ataxia Frequent (79-30%)
HP:0001252 Muscular hypotonia Frequent (79-30%)
HP:0001510 Growth delay Frequent (79-30%)
HP:0001852 Sandal gap Frequent (79-30%)
HP:0002019 Constipation Frequent (79-30%)
HP:0002230 Generalized hirsutism Frequent (79-30%)
HP:0002360 Sleep disturbance Frequent (79-30%)
HP:0002553 Highly arched eyebrow Frequent (79-30%)
HP:0002591 Polyphagia Frequent (79-30%)
HP:0004209 Clinodactyly of the 5th finger Frequent (79-30%)
HP:0004279 Short palm Frequent (79-30%)
HP:0004322 Short stature Frequent (79-30%)
HP:0010804 Tented upper lip vermilion Frequent (79-30%)
HP:0100716 Self-injurious behavior Frequent (79-30%)
HP:0000028 Cryptorchidism Occasional (29-5%)
HP:0001385 Hip dysplasia Occasional (29-5%)
HP:0001572 Macrodontia Occasional (29-5%)
HP:0008736 Hypoplasia of penis Occasional (29-5%)


Phenotype(s) retrieved from case reports

    Total: 3

HPO ID Term # of case reports
HP:0001250 Seizures 2
HP:0000252 Microcephaly 1
HP:0004322 Short stature 1


Causative gene(s) retrieved from Orphanet

    Total: 1

Gene Symbol Gene Name Entrez Gene ID
MBD5 methyl-CpG binding domain protein 5 55777