Combined active pocket and hinge region engineering to develop an NADPH-dependent phenylglycine dehydrogenase

2022 ◽  
pp. 105601
Author(s):  
Xinjian Yin ◽  
Yujing Zeng ◽  
Jun Chen ◽  
Lan Liu ◽  
Zhizeng Gao
Keyword(s):  
Hinge Region

scholarly journals O-glycosylation in hinge region of mouse immunoglobulin G2b.

1994 ◽  
Vol 269 (16) ◽  
pp. 12345-12350 ◽  
Author(s):  
H. Kim ◽  
Y. Yamaguchi ◽  
K. Masuda ◽  
C. Matsunaga ◽  
K. Yamamoto ◽  
...  
Keyword(s):  
Hinge Region ◽  
Mouse Immunoglobulin

scholarly journals Mutational and Structural Analyses of the Hinge Region of Membrane Type 1-Matrix Metalloproteinase and Enzyme Processing

2005 ◽  
Vol 280 (28) ◽  
pp. 26160-26168 ◽  
Author(s):  
Pamela Osenkowski ◽  
Samy O. Meroueh ◽  
Dumitru Pavel ◽  
Shahriar Mobashery ◽  
Rafael Fridman
Keyword(s):  
Matrix Metalloproteinase ◽  
Hinge Region ◽  
Membrane Type

scholarly journals The Superagonistic Activity of Bovine Thyroid-stimulating Hormone (TSH) and the Human TR1401 TSH Analog Is Determined by Specific Amino Acids in the Hinge Region of the Human TSH Receptor

2009 ◽  
Vol 284 (24) ◽  
pp. 16317-16324 ◽  
Author(s):  
Sandra Mueller ◽  
Gunnar Kleinau ◽  
Mariusz W. Szkudlinski ◽  
Holger Jaeschke ◽  
Gerd Krause ◽  
...  
Keyword(s):  
Amino Acids ◽  
Thyroid Stimulating Hormone ◽  
Hinge Region ◽  
Camp Production ◽  
Glycoprotein Hormone ◽  
Charged Amino Acids ◽  
Bovine Thyroid ◽  
Positively Charged ◽  
Bovine Tsh ◽  
Signaling Activity

Bovine TSH (bTSH) has a higher affinity to the human TSHR (hTSHR) and a higher signaling activity than human TSH (hTSH). The molecular reasons for these phenomena are unknown. Distinct negatively charged residues (Glu297, Glu303, and Asp382) in the hinge region of the hTSHR are known to be important for bTSH binding and signaling. To investigate the potential relevance of these positions for differences between bTSH and hTSH in the interaction to the hTSHR, we determined bTSH- and hTSH-mediated cAMP production of several substitutions at these three hinge residues. To examine specific variations of hTSH, we also investigated the superagonistic hTSH analog TR1401 (TR1401), whose sequence differs from hTSH by four additional positively charged amino acids that are also present in bTSH. To characterize possible interactions between the acidic hTSHR positions Glu297, Glu303, or Asp382 and the additional basic residues of TR1401, we investigated TR1401 binding and signaling properties. Our data reveal increased cAMP signaling of the hTSHR using TR1401 and bTSH compared with hTSH. Whereas Asp382 seems to be important for bTSH- and TR1401-mediated but not for hTSH-mediated signaling, the substitution E297K exhibits a decreased signaling for all three TSH variants. Interestingly, bTSH and TR1401 showed only a slightly different binding pattern. These observations imply that specific residues of the hinge region are mediators of the superagonistic activity of bTSH and TR1401 in contrast to hTSH. Moreover, the simultaneous localization of binding components in the glycoprotein hormone molecule and the receptor hinge region permits important reevaluation of interacting hormone receptor domains.

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