HAND2_MOUSE Q61039
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UniProt:Q61039
Recommended name：Heart- and neural crest derivatives-expressed protein 2
EC number：
Alternative names：(Deciduum, heart, autonomic nervous system and neural crest derivatives-expressed protein 2) (dHAND) (Helix-loop-helix transcription factor expressed in embryo and deciduum) (Thing-2)
Cleaved into：
GeneID：15111
Gene names (primary )：Hand2
Gene names (synonym )：Dhand Hed Thing2
Gene names (ORF )：
Length：217
Mass：23666
Sequence：MSLVGGFPHHPVVHHEGYPFAAAAAAAAAAAASRCSHEENPYFHGWLIGHPEMSPPDYSMALSYSPEYASGAAGLDHSHYGGVPPGAGPPGLGGPRPVKRRGTANRKERRRTQSINSAFAELRECIPNVPADTKLSKIKTLRLATSYIAYLMDLLAKDDQNGEAEAFKAEIKKTDVKEEKRKKELNEILKSTVSSNDKKTKGRTGWPQHVWALELKQ
Tissue specificity：Heart and aorta.
Induction：
Developmental stage：High extraembryonic expression is detected at 7.5 dpc in the maternally derived deciduum. Also detected along the yolk sac vessels during the process of remodeling at 9.5-10.0 dpc. Within the embryo, detected at 7.5 dpc in the lateral mesoderm including the precardiac mesoderm. On day 8.5 pc expressed throughout the straight heart tube. In the caudal region of the embryo, expressed in the lateral mesoderm at the level of separation of the somatic and splanchnic mesoderm. On day 9.5 pc expressed throughout the developing cardiovascular region, most abundant in the outflow tract and in the first and second aortic arch arteries, and in pharyngeal arches. As the heart loops, the expression becomes restricted to the conotruncus and future right ventricle (endocardium and myocardium). At 10.5 dpc, highly expressed in the branchial arches, as well as in the truncus arteriosus, aortic sac, and the vascular mesenchyme between the third and fourth aortic arch arteries, which later gives rise to vascular smooth muscle cells and to the mesenchyme of the pharyngeal arch. At 13.5 dpc, barely detectable in the heart, but apparent in the neural crest-derived sympathetic trunk and adrenal medulla, a pattern similar to that of HAND1. In the developing limbs, expression is detected in the posterior mesoderm of the buds at 9.5 dpc. It is then progressively down-regulated at the anterior of the limb buds so that a gradient expression along the anterior-posterior axis of the bud is established with higher expression at the posterior border. At later stages of limb development, expression is restricted to the posterior border of the zeugopod and to the posterior autopod. In the autopod, dynamic expression of HAND2 affects the interdigital regions, the lateral borders of the digits and eventually the developing ventral tendons. After 16 dpc, expression decreases throughout the embryo. {ECO:0000269|PubMed:10769237, ECO:0000269|PubMed:10804186, ECO:0000269|PubMed:9171826}.
Protein families：