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. 1993 Jan 1;90(1):227–231. doi: 10.1073/pnas.90.1.227

LH-2: a LIM/homeodomain gene expressed in developing lymphocytes and neural cells.

Y Xu 1, M Baldassare 1, P Fisher 1, G Rathbun 1, E M Oltz 1, G D Yancopoulos 1, T M Jessell 1, F W Alt 1
PMCID: PMC45633  PMID: 7678338

Abstract

A screen for early markers of B-lymphocyte differentiation has identified a homeobox gene, denoted LH-2, that has a pattern of expression distinct from that of other related genes. The LH-2 cDNA sequence encodes a polypeptide of 426 amino acids that contains a homeodomain and two repeats of a cysteine-rich domain referred to as a LIM domain. The homeodomain of the LH-2 protein is related to that of other LIM/homeodomain proteins, most strikingly with that of the Drosophila apterous protein. Expression of LH-2 was found in B- and T-lymphoid cell lines. Expression in B-cell lines was highest in lines that represent early stages of differentiation, whereas in T-cell lines there was no clear correlation with the stage of differentiation. In embryonic and adult tissues, the highest level of LH-2 expression was found in discrete regions of the developing central nervous system, primarily in diencephalic and telencephalic structures, and in a subset of lymphoid tissues. The expression pattern and structural characteristics of the LH-2 gene suggest that it encodes a transcriptional regulatory protein involved in the control of cell differentiation in developing lymphoid and neural cell types.

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Selected References

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