3NHB

Nucleotide Binding Domain of Human ABCB6 (ADP bound structure)

3NHB の概要

• エントリーDOI: 10.2210/pdb3nhb/pdb
• 関連するPDBエントリー: 3NH6 3NH9 3NHA
• 分子名称: ATP-binding cassette sub-family B member 6, mitochondrial, ADENOSINE-5'-DIPHOSPHATE, BETA-MERCAPTOETHANOL, ... (5 entities in total)
• 機能のキーワード: abc-transporter, abcb6, nucleotide binding domain, heme biosynthesis, transport protein
• 由来する生物種: Homo sapiens (human)
• 細胞内の位置: Mitochondrion outer membrane; Multi-pass membrane protein: Q9NP58
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 34088.07

構造登録者

Haffke, M.,Menzel, A.,Carius, Y.,Jahn, D.,Heinz, D.W. (登録日: 2010-06-14, 公開日: 2010-08-25, 最終更新日: 2023-09-06)

主引用文献

Haffke, M.,Menzel, A.,Carius, Y.,Jahn, D.,Heinz, D.W.
Structures of the nucleotide-binding domain of the human ABCB6 transporter and its complexes with nucleotides.
Acta Crystallogr.,Sect.D, 66:979-987, 2010

PubMed Abstract: The human ATP-binding cassette (ABC) transporter ABCB6 is involved in haem-precursor transport across the mitochondrial membrane. The crystal structure of its nucleotide-binding domain (NBD) has been determined in the apo form and in complexes with ADP, with ADP and Mg(2+) and with ATP at high resolution. The overall structure is L-shaped and consists of two lobes, consistent with other reported NBD structures. Nucleotide binding is mediated by the highly conserved Tyr599 and the Walker A motif, and induces notable structural changes. Structural comparison with other structurally characterized NBDs and full-length ABC transporters gives the first insight into the possible catalytic mechanism of ABCB6 and the role of the N-terminal helix alpha(1) in full-length ABCB6.

PubMed: 20823549
DOI: 10.1107/S0907444910028593

実験手法

X-RAY DIFFRACTION (2.15 Å)