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Rh-asocirani glikoprotein

Rh-asocirani glikoprotein (RHAG) je proteinski transporter ammonijskih supstanci. Kod čovjeka je kodiran sa RHAG gena.[1][2] RHAG je također bio označavan i kao CD241 (Cluster of Differentiation 241). Mutacija u RHAG genu može uvjetovati nasljednu stomatocitozu.[3]

Antigeni Rh sistema (MIM 111700) su kod čovjeka povezani s proteinima eritrocitnih membrana, mase od oko 30 kDa, tzv. RH30 polipeptida. Heterogeni glikolizirani membranski proteini od 50 i 45 kDa, na Rh50 glikoproteinu, su koprecipitat (kompleksni talog) sa Rh30 polipeptidom u muniprecipitaciji sa anti-Rh-specifičnim mono- i poliklonskim antitijelima. Rh antigeni postoje i kao multipodjedinice kompleksa CD47 (MIM 601.028), LW (MIM 111.250), glikoforina B (MIM 111740), a imaju ključnu ulogu u Rh50 glikoproteinu.[4]

Interakcije

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RHAG ispoljava protein-protein interaktivnost sa ANK1.[5]

Reference

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  1. ^ Matassi G., Cherif-Zahar B., Raynal V., Rouger P., Cartron J. P. (1998): Organization of the human RH50A gene (RHAG) and evolution of base composition of the RH gene family. Genomics, 47 (2): 286–293.
  2. ^ "Entrez Gene: RHAG Rh-associated glycoprotein".
  3. ^ PMID 21849667 (PubMed)
  4. ^ [OMIM]
  5. ^ Nicolas V. et al. (2003: Rh-RhAG/ankyrin-R, a new interaction site between the membrane bilayer and the red cell skeleton, is impaired by Rh(null)-associated mutation. J. Biol. Chem., 278 (28): 25526–25533.

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Rh-asocirani glikoprotein
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