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6L4K

Human serum albumin-Palmitic acid-Cu compound

Summary for 6L4K
Entry DOI10.2210/pdb6l4k/pdb
DescriptorSerum albumin, PALMITIC ACID, 2-bromanyl-9-ethyl-~{N},~{N},7-trimethyl-3-thia-1$l^{4},5,6$l^{4},10-tetraza-2$l^{4}-cupratricyclo[6.4.0.0^{2,6}]dodeca-1(8),4,6,9,11-pentaen-4-amine (3 entities in total)
Functional Keywordscomplex, protein binding
Biological sourceHomo sapiens (Human)
Total number of polymer chains2
Total formula weight135900.57
Authors
Zhang, Z.L. (deposition date: 2019-10-17, release date: 2020-10-21, Last modification date: 2024-10-30)
Primary citationZhang, Z.,Yu, P.,Gou, Y.,Zhang, J.,Li, S.,Cai, M.,Sun, H.,Yang, F.,Liang, H.
Novel Brain-Tumor-Inhibiting Copper(II) Compound Based on a Human Serum Albumin (HSA)-Cell Penetrating Peptide Conjugate.
J.Med.Chem., 62:10630-10644, 2019
Cited by
PubMed Abstract: It is a great challenge to design drugs that penetrate the blood-brain barrier to inhibit brain tumor growth by acting against multiple targets and also improve their delivery efficacy and targeting ability to cancer cells. To overcome the above problems, we designed a multitarget metal agent for treating brain tumors based on an human serum albumin (HSA)-cell penetrating peptide conjugate. Thus, we rationally screened copper (Cu) and 2-acetyl-3-ethylpyrazine thiosemicarbazones to synthesize six compounds, and we investigated their structure-activity relationships and confirmed multiple mechanisms for brain glioma cells. The HSA- complex structure indicated that binds to the IIA subdomain of HSA and His242 replaces the Br ligand in in coordination with Cu. In vivo data suggested that both and the HSA--peptide conjugate penetrate the blood-brain barrier and inhibit brain tumor growth with few side effects. Furthermore, the HSA-peptide conjugate also improved the delivery efficacy and targeting ability of in vivo.
PubMed: 31693353
DOI: 10.1021/acs.jmedchem.9b00939
PDB entries with the same primary citation
Experimental method
X-RAY DIFFRACTION (2.09 Å)
Structure validation

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