Identification of a novel inhibitory actin-capping protein binding motif in CD2-associated protein
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Identification of a novel inhibitory actin-capping protein binding motif in CD2-associated protein. / Bruck, Serawit; Huber, Tobias B; Ingham, Robert J; Kim, Kyoungtae; Niederstrasser, Hanspeter; Allen, Paul M; Pawson, Tony; Cooper, John A; Shaw, Andrey S.
in: J BIOL CHEM, Jahrgang 281, Nr. 28, 14.07.2006, S. 19196-203.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Identification of a novel inhibitory actin-capping protein binding motif in CD2-associated protein
AU - Bruck, Serawit
AU - Huber, Tobias B
AU - Ingham, Robert J
AU - Kim, Kyoungtae
AU - Niederstrasser, Hanspeter
AU - Allen, Paul M
AU - Pawson, Tony
AU - Cooper, John A
AU - Shaw, Andrey S
PY - 2006/7/14
Y1 - 2006/7/14
N2 - CD2-associated protein (CD2AP) is a scaffold molecule that plays a critical role in the maintenance of the kidney filtration barrier. Little, however, is understood about its mechanism of function. We used mass spectrometry to identify CD2AP-interacting proteins. Many of the proteins that we identified suggest a role for CD2AP in endocytosis and actin regulation. To address the role of CD2AP in regulation of the actin cytoskeleton, we focused on characterizing the interaction of CD2AP with actin-capping protein CP. We identified a novel binding motif LXHXTXXRPK(X)6P present in CD2AP that is also found in its homolog Cin85 and other capping protein-associated proteins such as CARMIL and CKIP-1. CD2AP inhibits the function of capping protein in vitro. Therefore, our results support a role of CD2AP in the regulation of the actin cytoskeleton.
AB - CD2-associated protein (CD2AP) is a scaffold molecule that plays a critical role in the maintenance of the kidney filtration barrier. Little, however, is understood about its mechanism of function. We used mass spectrometry to identify CD2AP-interacting proteins. Many of the proteins that we identified suggest a role for CD2AP in endocytosis and actin regulation. To address the role of CD2AP in regulation of the actin cytoskeleton, we focused on characterizing the interaction of CD2AP with actin-capping protein CP. We identified a novel binding motif LXHXTXXRPK(X)6P present in CD2AP that is also found in its homolog Cin85 and other capping protein-associated proteins such as CARMIL and CKIP-1. CD2AP inhibits the function of capping protein in vitro. Therefore, our results support a role of CD2AP in the regulation of the actin cytoskeleton.
KW - Actins
KW - Adaptor Proteins, Signal Transducing
KW - Amino Acid Motifs
KW - Amino Acid Sequence
KW - Animals
KW - Carrier Proteins
KW - Chickens
KW - Cytoskeletal Proteins
KW - Cytoskeleton
KW - Endocytosis
KW - Humans
KW - Intracellular Signaling Peptides and Proteins
KW - Microfilament Proteins
KW - Molecular Sequence Data
KW - Protein Binding
KW - Proteins
KW - Sequence Homology, Amino Acid
KW - Journal Article
KW - Research Support, N.I.H., Extramural
U2 - 10.1074/jbc.M600166200
DO - 10.1074/jbc.M600166200
M3 - SCORING: Journal article
C2 - 16707503
VL - 281
SP - 19196
EP - 19203
JO - J BIOL CHEM
JF - J BIOL CHEM
SN - 0021-9258
IS - 28
ER -