Immunoglobulin heavy variable 7-81 (non-functional) (IGHV7-81)

Immunoglobulin heavy variable 7-81 (IGHV7-81) is a non-functional open reading frame belonging to the immunoglobulin heavy chain variable region (IGHV) gene family on chromosome 14. It is classified by genomic resources as a probable non-functional gene segment (open reading frame, ORF) due to alterations that prevent the formation of a productive immunoglobulin chain, such as disrupted V-(D)-J recombination signals, abnormal splicing sites, or abnormal protein sequence[1][3][4][5]. Although immunoglobulins (antibodies) mediate humoral immunity, IGHV7-81 itself does not contribute to this process due to its lack of expression or function. It is not a target for drugs, diagnostics, or therapeutic antibodies, and has no direct clinical implications. The presence and structural variation of IGHV gene segments—including non-functional ones like IGHV7-81—contribute to the genomic complexity and polymorphism of the immunoglobulin heavy chain locus, but IGHV7-81 specifically is not associated with any diseases or used in patient selection, monitoring, or treatment[1][2][6].

Other names

IGHV781IGHV7-81Probable non-functional immunoglobulin heavy variable 7-81

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