HDX (highly divergent homeobox) is a 690 amino acid nuclear protein that contains two homeobox DNA-binding domains. Existing as two alternatively spliced isoforms, the gene encoding HDX maps to the human X chromosome, which consists of about 153 million base pairs and nearly 1,000 genes. The combination of an X and Y chromosome leads to normal male development while two copies of X lead to normal female development. There are a number of conditions related to an unusual number and combination of sex chromosomes being inherited, including Turner's syndrome, Klinefelter's syndrome and Triple X syndrome. Color blindness, hemophilia, and Duchenne muscular dystrophy are well known X chromosome-linked conditions which affect males more frequently as males carry a single X chromosome.
Subcellular Location:
Nucleus.
Similarity:
Contains 2 homeobox DNA-binding domains.
SWISS:
Q7Z353
Gene ID:
139324
Database links:
Entrez Gene: 422272 Chicken
Entrez Gene: 491990 Dog
Entrez Gene: 139324 Human
Entrez Gene: 245596 Mouse
SwissProt: Q5ZKW8 Chicken
SwissProt: Q7Z353 Human
SwissProt: Q14B70 Mouse
Unigene: 559546 Human
Unigene: 246623 Mouse
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