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Ranganath, Prajnya and Sreeja, P. and Nair, Lekshmi and Pramod Kumar, P. and Aparna , Shankar and Sakthivel, M. and Dalal, Ashwin (2020) A newly recognized multiple malformation syndrome with caudal regression associated with a biallelic c.402G>A variant in TBX4. European Journal of Human Genetics, 28 (5). pp. 669-673. ISSN 1018-4813

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The T-box4 (TBX4) gene (OMIM *601719) belongs to the T-box family of transcription regulators that share a conserved homology domain and are expressed at specific sites during various stages of embryonic development. Tbx4 has been found to be a crucial transcriptional regulator in embryonic hindlimb development in animal models. Monoallelic variants in the TBX4 gene are reported to be associated with skeletal defects of the pelvis and lower limbs. We report here a fetus with a novel multiple malformation syndrome associated with sacrococcygeal agenesis, bilateral lower limb aplasia, hypoplastic left heart, bilateral lung hypoplasia, hydroureteronephrosis, and nonimmune fetal hydrops, found to have a homozygous nonsense variant in the TBX4 gene. We propose that biallelic variants in the TBX4 gene are associated with a severe syndromic phenotype of sacrococcygeal agenesis and lower limb reduction defects.

Item Type: Article
Subjects: Genetics
Depositing User: Dr P. Divakar
Date Deposited: 11 Mar 2020 18:57
Last Modified: 10 Nov 2020 19:32
URI: http://cdfd.sciencecentral.in/id/eprint/948

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