PSMD1
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26S proteasome non-ATPase regulatory subunit 1, also as known as 26S Proteasome Regulatory Subunit Rpn2 (systematic nomenclature), is a protein that in humans is encoded by the PSMD1 gene. This protein is one of the 19 essential subunits that contributes to the complete assembly of 19S proteasome complex.
26S proteasome non-ATPase regulatory subunit 1, also as known as 26S Proteasome Regulatory Subunit Rpn2 (systematic nomenclature), is a protein that in humans is encoded by the PSMD1 gene. This protein is one of the 19 essential subunits that contributes to the complete assembly of 19S proteasome complex.
Structure
Gene expression
The gene PSMD1 encodes the largest non-ATPase subunit of the 19S regulator base, which is responsible for substrate recognition and binding. The human PSMD1 gene has 25 exons and locates at chromosome band 2q37.1. The human protein 26S proteasome non-ATPase regulatory subunit 1 is 106 kDa in size and composed of 953 amino acids. The calculated theoretical pI of this protein is 5.25. An alternative splicing during gene expression generates an isoform of the protein in which the amino acid sequence from 797-827 is missing.
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