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Overview

Uniprot IDQ91VC7
Protein NameProtein phosphatase 1 regulatory subunit 14A
Gene NamePpp1r14a
OrganismMus musculus

Kla Sites from experimental identification

Position Flanking peptide
13 LGKRVLSKLQSPSRA

Function

Inhibitor of PPP1CA. Has over 1000-fold higher inhibitory activity when phosphorylated, creating a molecular switch for regulating the phosphorylation status of PPP1CA substrates and smooth muscle contraction (By similarity)

Protein Sequence

10 MAAQRLGKRV 20 LSKLQSPSRA 30 RGPGGSPSGL 40 QKRHARVTVK 50 YDRRELQRRL 60 DVEKWIDGCL 70 EELYRGRESD 80 MPDEVNIDEL 90 LELDSEEERC 100 RKIQGLLEAC 110 ANPTEDFVQE 120 LLAKLRGLHK 130 QPGFPQPSPS 140 DDPSLSPRQD RAHTAPP

Gene Ontology

Classification GO ID Description
Cellular Component GO:0005737 cytoplasm
Cellular Component GO:0005654 nucleoplasm
Molecular Function GO:0004865 protein serine/threonine phosphatase inhibitor activity
Biological Process GO:0071466 cellular response to xenobiotic stimulus

Reference

[1] Wu D, Tang Y, Li X, Xiong S, Zhang Z et al.. Characterization of protein lactylation in healthy and ischemic mouse hearts.. Front Cardiovasc Med 12:1644886. 2025. PMID: 41089239.