Search Results

Overview

Uniprot IDQ9UIJ7
Protein NameGTP:AMP phosphotransferase AK3, mitochondrial
Gene NameAK3
OrganismHomo sapiens

Kla Sites from experimental identification

Position Flanking peptide
171 DKPETVIKRLKAYED
174 ETVIKRLKAYEDQTK
189 PVLEYYQKKGVLETF
20 MGAPGSGKGTVSSRI
34 ITTHFELKHLSSGDL
64 KAFIDQGKLIPDDVM

Function

Mitochondrial adenylate kinase with a specific GTP:AMP phosphotransferase activity (PubMed:11485571, PubMed:32822537). Could also use ITP as phosphate donor (PubMed:11485571). Its physiological function is to recycle GTP into GDP which is necessary for the TCA cycle in the mitochondrial matrix (Probable)

Protein Sequence

10 MGASARLLRA 20 VIMGAPGSGK 30 GTVSSRITTH 40 FELKHLSSGD 50 LLRDNMLRGT 60 EIGVLAKAFI 70 DQGKLIPDDV 80 MTRLALHELK 90 NLTQYSWLLD 100 GFPRTLPQAE 110 ALDRAYQIDT 120 VINLNVPFEV 130 IKQRLTARWI 140 HPASGRVYNI 150 EFNPPKTVGI 160 DDLTGEPLIQ 170 REDDKPETVI 180 KRLKAYEDQT 190 KPVLEYYQKK 200 GVLETFSGTE 210 TNKIWPYVYA 220 FLQTKVPQRS QKASVTP

Gene Ontology

Classification GO ID Description
Cellular Component GO:0005737 cytoplasm
Cellular Component GO:0005759 mitochondrial matrix
Cellular Component GO:0005739 mitochondrion
Molecular Function GO:0005524 ATP binding
Molecular Function GO:0005525 GTP binding
Molecular Function GO:0016874 ligase activity
Molecular Function GO:0046899 nucleoside triphosphate adenylate kinase activity
Biological Process GO:0006172 ADP biosynthetic process
Biological Process GO:0046033 AMP metabolic process
Biological Process GO:0007596 blood coagulation
Biological Process GO:0046039 GTP metabolic process
Biological Process GO:0046041 ITP metabolic process
Biological Process GO:0009142 nucleoside triphosphate biosynthetic process
Biological Process GO:0046051 UTP metabolic process

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] Shi CM, Wang QC, Li XL, Yang YH, Tang XY et al.. Global Profiling of Protein Lactylation in Human Hippocampi.. Proteomics Clin Appl 19(2):e202400061. 2025 Mar. PMID: 39610256.