ACTR1B

This gene encodes a 42.3 kD subunit of dynactin, a macromolecular complex consisting of 10 subunits ranging in size from 22 to 150 kD. Dynactin binds to both microtubules and cytoplasmic dynein and is involved in a diverse array of cellular functions, including ER-to-Golgi transport, the centripetal movement of lysosomes and endosomes, spindle formation, chromosome movement, nuclear positioning, and axonogenesis. This subunit, like ACTR1A, is an actin-related protein. These two proteins, which are of equal length and share 90% amino acid identity, are present in a constant ratio of approximately 1:15 in the dynactin complex. [provided by RefSeq, Aug 2008]

Description

Actin related protein 1B

Tissue specificity

Low tissue specificity

Subcell location

Microtubules

Predicted location

Intracellular

Protein family

Mapped to neXtProt
Mapped to UniProt SWISS-PROT
Plasma proteins
Predicted intracellular proteins
Protein evidence (Ezkurdia et al 2014)
Protein evidence (Kim et al 2014)

Chromosome

2 (97655939 - 97664044)

Ensembl ID

ENSG00000115073  (ver. 103.38)

Orthologs

Mouse Actr1b: ENSMUSG00000037351

UniProt

P42025

neXtProt

NX_P42025

Human splice variants
Mouse splice variants

Protein structure