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@ARTICLE{Jaenicke:16683,
author = {Jaenicke, E. and Büchler, K. and Decker, H and Markl, J.
and Barends, T. and Schröder, G.F.},
title = {{T}he {R}efined {S}tructure of {F}unctional {U}nit h of
{K}eyhole {L}impet {H}emocyanin ({KLH}1-h) {R}eveals
{D}isulfide {B}ridges},
journal = {IUBMB Life},
volume = {63},
reportid = {PreJuSER-16683},
pages = {183 - 187},
year = {2011},
note = {Record converted from VDB: 12.11.2012},
abstract = {Hemocyanins are multimeric oxygen-transport proteins in the
hemolymph of many arthropods and mollusks. The overall
molecular architecture of arthropod and molluscan hemocyanin
is very different, although they possess a similar binuclear
type 3 copper center to bind oxygen in a side-on
conformation. Gastropod hemocyanin is a 35 nm cylindrical
didecamer (2 × 10-mer) based on a 400 kDa subunit. The
latter is subdivided into eight paralogous "functional
units" (FU-a to FU-h), each with an active site. FU-a to
FU-f contribute to the cylinder wall, whereas FU-g and FU-h
form the internal collar complex. Atomic structures of FU-e
and FU-g, and a 9 Å cryoEM structure of the 8 MDa didecamer
are available. Recently, the structure of keyhole limpet
hemocyanin FU-h (KLH1-h) was presented as a C(α) -trace at
4 Å resolution. Unlike the other seven FU types, FU-h
contains an additional C-terminal domain with a
cupredoxin-like fold. Because of the resolution limit of 4
Å, in some loops, the course of the protein backbone could
not be established with high certainty yet. Here, we present
a refined atomic structure of FU-h (KLH1-h) obtained from
low-resolution refinement, which unambiguously establishes
the course of the polypeptide backbone and reveals the
disulfide bridges as well as the orientation of bulky amino
acids.},
keywords = {Disulfides: chemistry / Hemocyanin: chemistry / Models,
Molecular / Disulfides (NLM Chemicals) / keyhole-limpet
hemocyanin (NLM Chemicals) / Hemocyanin (NLM Chemicals) / J
(WoSType)},
cin = {ICS-6},
cid = {I:(DE-Juel1)ICS-6-20110106},
pnm = {Funktion und Dysfunktion des Nervensystems / BioSoft:
Makromolekulare Systeme und biologische
Informationsverarbeitung},
pid = {G:(DE-Juel1)FUEK409 / G:(DE-Juel1)FUEK505},
shelfmark = {Biochemistry $\&$ Molecular Biology / Cell Biology},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:21445849},
UT = {WOS:000288860900008},
doi = {10.1002/iub.435},
url = {https://juser.fz-juelich.de/record/16683},
}