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Overview

Uniprot IDP09132
Protein NameSignal recognition particle 19 kDa protein
Gene NameSRP19
OrganismHomo sapiens

Kla Sites from experimental identification

Position Flanking peptide
121 KLKTRTQKTGGADQS
136 LQQGEGSKKGKGKKK
87 GRVRVQLKQEDGSLC

Function

Component of the signal recognition particle (SRP) complex, a ribonucleoprotein complex that mediates the cotranslational targeting of secretory and membrane proteins to the endoplasmic reticulum (ER) (By similarity). Binds directly to 7SL RNA (By similarity). Mediates binding of SRP54 to the SRP complex (By similarity)

Protein Sequence

10 MACAAARSPA 20 DQDRFICIYP 30 AYLNNKKTIA 40 EGRRIPISKA 50 VENPTATEIQ 60 DVCSAVGLNV 70 FLEKNKMYSR 80 EWNRDVQYRG 90 RVRVQLKQED 100 GSLCLVQFPS 110 RKSVMLYAAE 120 MIPKLKTRTQ 130 KTGGADQSLQ 140 QGEGSKKGKG KKKK

Gene Ontology

Classification GO ID Description
Cellular Component GO:0005829 cytosol
Cellular Component GO:0005730 nucleolus
Cellular Component GO:0005654 nucleoplasm
Cellular Component GO:0048500 signal recognition particle
Cellular Component GO:0005786 signal recognition particle, endoplasmic reticulum targeting
Molecular Function GO:0008312 7S RNA binding
Molecular Function GO:0003723 RNA binding
Biological Process GO:0006613 cotranslational protein targeting to membrane
Biological Process GO:0006617 SRP-dependent cotranslational protein targeting to membrane, signal sequence recognition

Reference

[1] Yang Z, Yan C, Ma J, Peng P, Ren X et al.. Lactylome analysis suggests lactylation-dependent mechanisms of metabolic adaptation in hepatocellular carcinoma.. Nat Metab 5(1):61-79. 2023 Jan. PMID: 36593272.

[2] Guo X, Ren X, Yan C, Huang H. Quantitative Proteomics Reveals the Role of Lysine Lactylation in Lenalidomide-Resistance in Multiple Myeloma Cells.. ACS Chem Biol 20(7):1728-1738. 2025 Jul 18. PMID: 40590393.

[3] Wu Q, Li Z, Gong T, Zheng X, Zhou X et al.. Porphyromonas gingivalis infection induces lysine lactylation reprogramming in human umbilical vein endothelial cells.. Front Cell Infect Microbiol 16:1706727. 2026. PMID: 41696360.