SMALL GTP-BINDING PROTEINS OF SQUID PHOTORECEPTOR - INTERACTION WITH PHOTOACTIVATED RHODOPSIN

被引：4

作者：

PETROV, VM

ARTAMONOV, ID

LIPKIN, VM

机构：

[1] Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117871 GSP Moscow, ul.Miklukho-Maklaya, 16110

来源：

FEBS LETTERS | 1994年 / 337卷 / 03期

关键词：

GTP-BINDING PROTEIN; RHODOPSIN; C-3; ADP-RIBOSYLTRANSFERASE; INVERTEBRATE VISION;

D O I：

10.1016/0014-5793(94)80207-6

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Squid photoreceptor membranes contain several small GTP-binding proteins (22-27 kDa) in addition to heterotrimeric G-proteins. In addition, these membranes contain several proteins which can be ADP-ribosylated by exoenzyme C-3 from Clostridium botulinum (C-3). These proteins are similar but not identical to C-3 substrates from bovine rod outer segments. It is shown that substrates of C-3 in squid photoreceptor interact with rhodopsin in a light-dependent manner. These data suggest involvement of small GTP-binding proteins in phototransduction processes in invertebrates.

引用

页码：274 / 276

页数：3

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