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Overview

Uniprot IDQ8R429
Protein NameSarcoplasmic/endoplasmic reticulum calcium ATPase 1
Gene NameAtp2a1
OrganismMus musculus

Kla Sites from experimental identification

Position Flanking peptide
128 EYEPEMGKVYRADRK
169 DIRILSIKSTTLRVD
205 RAVNQDKKNMLFSGT
246 MAATEQDKTPLQQKL
35 QVKRHLEKYGPNELP
481 VIRQLMKKEFTLEFS
502 SVYCSPAKSSRAAVG
515 VGNKMFVKGAPEGVI
542 VPLTGPVKEKIMSVI
550 EKIMSVIKEWGTGRD
605 GMLDPPRKEVTGSIQ
629 IMITGDNKGTAIAIC
713 NDAPALKKAEIGIAM

Function

Key regulator of striated muscle performance by acting as the major Ca(2+) ATPase responsible for the reuptake of cytosolic Ca(2+) into the sarcoplasmic reticulum (PubMed:21697544, PubMed:22961106, PubMed:25640239, PubMed:26816378, PubMed:27923914). Catalyzes the hydrolysis of ATP coupled with the translocation of calcium from the cytosol to the sarcoplasmic reticulum lumen. Contributes to calcium sequestration involved in muscular excitation/contraction (PubMed:21697544, PubMed:22961106, PubMed:25640239, PubMed:26816378)

Protein Sequence

10 MEAAHSKSTE 20 ECLSYFGVSE 30 TTGLTPDQVK 40 RHLEKYGPNE 50 LPAEEGKSLW 60 ELVVEQFEDL 70 LVRILLLAAC 80 ISFVLAWFEE 90 GEETVTAFVE 100 PFVILLILIA 110 NAIVGVWQER 120 NAENAIEALK 130 EYEPEMGKVY 140 RADRKSVQRI 150 KARDIVPGDI 160 VEVAVGDKVP 170 ADIRILSIKS 180 TTLRVDQSIL 190 TGESVSVIKH 200 TDPVPDPRAV 210 NQDKKNMLFS 220 GTNIAAGKAV 230 GIVATTGVST 240 EIGKIRDQMA 250 ATEQDKTPLQ 260 QKLDEFGEQL 270 SKVISLICVA 280 VWLINIGHFN 290 DPVHGGSWFR 300 GAIYYFKIAV 310 ALAVAAIPEG 320 LPAVITTCLA 330 LGTRRMAKKN 340 AIVRSLPSVE 350 TLGCTSVICS 360 DKTGTLTTNQ 370 MSVCKMFIID 380 KVDGDVCSLN 390 EFSITGSTYA 400 PEGEVLKNDK 410 PVRAGQYDGL 420 VELATICALC 430 NDSSLDFNET 440 KGVYEKVGEA 450 TETALTTLVE 460 KMNVFNTEVR 470 SLSKVERANA 480 CNSVIRQLMK 490 KEFTLEFSRD 500 RKSMSVYCSP 510 AKSSRAAVGN 520 KMFVKGAPEG 530 VIDRCNYVRV 540 GTTRVPLTGP 550 VKEKIMSVIK 560 EWGTGRDTLR 570 CLALATRDTP 580 PKREEMVLDD 590 SAKFMEYEMD 600 LTFVGVVGML 610 DPPRKEVTGS 620 IQLCRDAGIR 630 VIMITGDNKG 640 TAIAICRRIG 650 IFSENEEVTD 660 RAYTGREFDD 670 LPLAEQREAC 680 RRACCFARVE 690 PSHKSKIVEY 700 LQSYDEITAM 710 TGDGVNDAPA 720 LKKAEIGIAM 730 GSGTAVAKTA 740 SEMVLADDNF 750 STIVAAVEEG 760 RAIYNNMKQF 770 IRYLISSNVG 780 EVVCIFLTAA 790 LGLPEALIPV 800 QLLWVNLVTD 810 GLPATALGFN 820 PPDLDIMDRP 830 PRSPKEPLIS 840 GWLFFRYMAI 850 GGYVGAATVG 860 AAAWWFLYAE 870 DGPHVSYHQL 880 THFMQCTEHN 890 PEFDGLDCEV 900 FEAPEPMTMA 910 LSVLVTIEMC 920 NALNSLSENQ 930 SLLRMPPWVN 940 IWLLGSICLS 950 MSLHFLILYV 960 DPLPMIFKLR 970 ALDFTQWLMV 980 LKISLPVIGL 990 DELLKFIARN YLEG

Gene Ontology

Classification GO ID Description
Cellular Component GO:0005783 endoplasmic reticulum
Cellular Component GO:0005789 endoplasmic reticulum membrane
Cellular Component GO:0005793 endoplasmic reticulum-Golgi intermediate compartment
Cellular Component GO:0031673 H zone
Cellular Component GO:0031674 I band
Cellular Component GO:0016020 membrane
Cellular Component GO:0005739 mitochondrion
Cellular Component GO:0048471 perinuclear region of cytoplasm
Cellular Component GO:0016529 sarcoplasmic reticulum
Cellular Component GO:0033017 sarcoplasmic reticulum membrane
Molecular Function GO:0005524 ATP binding
Molecular Function GO:0016887 ATP hydrolysis activity
Molecular Function GO:0005509 calcium ion binding
Molecular Function GO:0030899 calcium-dependent ATPase activity
Molecular Function GO:0005338 nucleotide-sugar transmembrane transporter activity
Molecular Function GO:0005388 P-type calcium transporter activity
Molecular Function GO:0042803 protein homodimerization activity
Biological Process GO:0008637 apoptotic mitochondrial changes
Biological Process GO:0070509 calcium ion import
Biological Process GO:1990036 calcium ion import into sarcoplasmic reticulum
Biological Process GO:0070588 calcium ion transmembrane transport
Biological Process GO:0006816 calcium ion transport
Biological Process GO:0006874 intracellular calcium ion homeostasis
Biological Process GO:0070059 intrinsic apoptotic signaling pathway in response to endoplasmic reticulum stress
Biological Process GO:0051659 maintenance of mitochondrion location
Biological Process GO:0032471 negative regulation of endoplasmic reticulum calcium ion concentration
Biological Process GO:0045988 negative regulation of striated muscle contraction
Biological Process GO:1901896 positive regulation of ATPase-coupled calcium transmembrane transporter activity
Biological Process GO:1902082 positive regulation of calcium ion import into sarcoplasmic reticulum
Biological Process GO:0106134 positive regulation of cardiac muscle cell contraction
Biological Process GO:0032470 positive regulation of endoplasmic reticulum calcium ion concentration
Biological Process GO:0031448 positive regulation of fast-twitch skeletal muscle fiber contraction
Biological Process GO:0051561 positive regulation of mitochondrial calcium ion concentration
Biological Process GO:0006937 regulation of muscle contraction
Biological Process GO:0006942 regulation of striated muscle contraction
Biological Process GO:0090076 relaxation of skeletal muscle
Biological Process GO:0034976 response to endoplasmic reticulum stress
Biological Process GO:0043434 response to peptide hormone
Biological Process GO:0070296 sarcoplasmic reticulum calcium ion transport

Reference

[1] Chang J, Wu W, Qian P, Lu Z, He X et al.. Multi-omics study on the effect of moderate-intensity exercise on protein lactylation in mouse muscle tissue.. Front Cell Dev Biol 12:1472338. 2024. PMID: 39935788.