Tyrosine 121 moves revealing a ligandable pocket that couples catalysis to ATP-binding in serine racemase.
Tyrosine 121 moves revealing a ligandable pocket that couples catalysis to ATP-binding in serine racemase.
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酪氨酸121的移动揭示了一个可配体的口袋,在丝氨酸消旋酶中将催化作用与ATP结合偶联。
DOI:
10.1038/s42003-022-03264-5
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发表时间:
2022-04-11
影响因子:
5.9
通讯作者:
中科院分区:
文献类型:
--
作者:
Human serine racemase (hSR) catalyses racemisation of L-serine to D-serine, the latter of which is a co-agonist of the NMDA subtype of glutamate receptors that are important in synaptic plasticity, learning and memory. In a ‘closed’ hSR structure containing the allosteric activator ATP, the inhibitor malonate is enclosed between the large and small domains while ATP is distal to the active site, residing at the dimer interface with the Tyr121 hydroxyl group contacting the α-phosphate of ATP. In contrast, in ‘open’ hSR structures, Tyr121 sits in the core of the small domain with its hydroxyl contacting the key catalytic residue Ser84. The ability to regulate SR activity by flipping Tyr121 from the core of the small domain to the dimer interface appears to have evolved in animals with a CNS. Multiple X-ray crystallographic enzyme-fragment structures show Tyr121 flipped out of its pocket in the core of the small domain. Data suggest that this ligandable pocket could be targeted by molecules that inhibit enzyme activity. The catalytic mechanisms of human serine racemase reveal a ligandable pocket near Tyr121 that could be targeted for the development of novel inhibitors.
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DOI:
10.1107/s090744491003982x
发表时间:
2011-04
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Evans PR
通讯作者:
Evans PR
DOI:
10.1107/s2059798317003382
发表时间:
2017-03-01
期刊:
Acta crystallographica. Section D, Structural biology
影响因子:
--
作者:
Emsley P
通讯作者:
Emsley P
影响因子:
2.5
作者:
Jacobi AA;Halawani S;Lynch DR;Lin H
通讯作者:
Lin H
影响因子:
2.5
作者:
Berger, AJ;Dieudonné, S;Ascher, P
通讯作者:
Ascher, P
影响因子:
4.7
作者:
HASHIMOTO, A;NISHIKAWA, T;TAKAHASHI, K
通讯作者:
TAKAHASHI, K