Molecular Target Synopsis
Domains and Structures
Drugs and Clinical Candidates
Ligand Efficiency Plot
Family Cladogram
Interaction Network
Gene Expression
Gene Copy Number Variation
Germline Genetics

CAPZB (P47756) - Overview - Molecular Target Synopsis


CAPZB, F-actin-capping protein subunit beta
UniProt P47756


F-actin-capping proteins bind in a Ca(2+)-independent manner to the fast growing ends of actin filaments (barbed end) thereby blocking the exchange of subunits at these ends. Unlike other capping proteins (such as gelsolin and severin), these proteins do not sever actin filaments. Plays a role in the regulation of cell morphology and cytoskeletal organization. Heterodimer of an alpha and a beta subunit. Interacts with ARHGAP17 (PubMed:16678097). Interaction with RCSD1/CAPZIP (PubMed:15850461). Component of the WASH complex, composed of F-actin-capping protein subunit alpha (CAPZA1, CAPZA2 or CAPZA3), F-actin-capping protein subunit beta (CAPZB), WASH (WASHC1, WASH2P, WASH3P, WASH4P, WASH5P or WASH6P), WASHC2 (WASHC2A or WASHC2C), WASHC3, WASHC4 and WASHC5 (PubMed:19922875). Interacts with ACTG1 (PubMed:28493397).

Isoforms / Transcripts (Protein Coding)

Sub-cellular localization

UniProt: CAPZB is active in the following subcellular-locations: cytoplasm, cytoskeleton, myofibril, sarcomere.
GO terms: CAPZB is active in the following subcellular-locations: actin cytoskeleton, cytoskeleton, cytosol, extracellular exosome, F-actin capping protein complex, sarcomere, WASH complex.

GO terms

Gene Copy Number Variation

In COSMIC - Cell Lines Project CAPZB has gain in 1 cell-lines, loss in 0 cell-lines and no signal in 1004 cell-lines. (see details)

Gene Expression

In NCI60, the highest expressing cell lines are: HS578T, SNB_75, SF_539

In Array Express (RNA-seq of 675 commonly used human cancer cell lines), the highest expressing cell lines are: RPMI-7951, G140, Hs 578T

In Array Express (RNA-seq of long poly adenylated RNA and long non poly adenylated RNA from ENCODE cell lines), the highest expressing cell lines are: NHLF, HSMM, HMEC

(see details)

3D Structures

At greater than 90% identity similarity to CAPZB there are:
19 structures (35 chains) solved
1 are solved in complex with at least one small molecule ligand

(see details)
Molecular Target 3D Synopsis