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7FH1

Structure of the human Meckelin

Summary for 7FH1
Entry DOI10.2210/pdb7fh1/pdb
EMDB information31584
DescriptorMeckelin, 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose, beta-D-mannopyranose-(1-3)-[beta-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose (3 entities in total)
Functional Keywordscryo-em, membrane protein
Biological sourceHomo sapiens (Human)
Total number of polymer chains2
Total formula weight234328.93
Authors
Gong, D.S. (deposition date: 2021-07-29, release date: 2021-12-01, Last modification date: 2024-11-06)
Primary citationLiu, D.,Qian, D.,Shen, H.,Gong, D.
Structure of the human Meckel-Gruber protein Meckelin.
Sci Adv, 7:eabj9748-eabj9748, 2021
Cited by
PubMed Abstract: Mutations in the gene account for most cases of the Meckel-Gruber syndrome, the most severe ciliopathy with a 100% mortality rate. Here, we report a 3.3-Å cryo–electron microscopy structure of human Meckelin (also known as TMEM67 and MKS3). The structure reveals a unique protein fold consisting of an unusual cysteine-rich domain that folds as an arch bridge stabilized by 11 pairs of disulfide bonds, a previously uncharacterized domain named β sheet–rich domain, a previously unidentified seven-transmembrane fold wherein TM4 to TM6 are broken near the cytoplasmic surface of the membrane, and a coiled-coil domain placed below the transmembrane domain. Meckelin forms a stable homodimer with an extensive dimer interface. Our structure establishes a framework for dissecting the function and disease mechanisms of Meckelin.
PubMed: 34731008
DOI: 10.1126/sciadv.abj9748
PDB entries with the same primary citation
Experimental method
ELECTRON MICROSCOPY (3.34 Å)
Structure validation

227561

건을2024-11-20부터공개중

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