Abstract:
:Newfound relatives of the classical Fc receptors (FcR) have been provisionally named the Fc receptor homologs (FcRH). The recent identification of eight human and six mouse FcRH genes substantially increases the size and functional potential of the FcR family. The extended family of FcR and FcRH genes spans approximately 15 Mb of the human chromosome 1q21-23 region, whereas in mice this family is split between chromosomes 1 and 3. The FcRH genes encode molecules with variable combinations of five subtypes of immunoglobulin (Ig) domains. The presence of a conserved sequence motif in one Ig domain subtype implies Ig Fc binding capability for many FcRH family members that are preferentially expressed by B lineage cells. In addition, most FcRH family members have consensus tyrosine-based activating and inhibitory motifs in their cytoplasmic domains, while the others lack features typical of transmembrane receptors. The FcRH family members, like the classical FcRs, come in multiple isoforms and allelic variations. The unique individual and polymorphic properties of the FcR/FcRH members indicate a remarkably diverse Fc receptor gene family with immunoregulatory function.
journal_name
Immunol Revjournal_title
Immunological reviewsauthors
Davis RS,Dennis G Jr,Odom MR,Gibson AW,Kimberly RP,Burrows PD,Cooper MDdoi
10.1034/j.1600-065x.2002.19009.xkeywords:
subject
Has Abstractpub_date
2002-12-01 00:00:00pages
123-36eissn
0105-2896issn
1600-065Xpii
imr19009journal_volume
190pub_type
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journal_title:Immunological reviews
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journal_title:Immunological reviews
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更新日期:1997-08-01 00:00:00
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更新日期:2019-11-01 00:00:00
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journal_title:Immunological reviews
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更新日期:1995-12-01 00:00:00
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更新日期:1997-02-01 00:00:00