Involved in the transcriptional regulation of genes required for mesoderm differentiation. Probably plays a role in limb pattern formation. Defects in TBX5 are the cause of Holt-Oram syndrome (HOS). HOS is a developmental disorder affecting the heart and upper limbs. It is characterized by thumb anomaly and atrial septal defects. 2 isoforms of the human protein are produced by alternative splicing. Note: This description may include information from UniProtKB.
LTP: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.