ID A0A2K5M9Q3_CERAT Unreviewed; 999 AA.
AC A0A2K5M9Q3;
DT 28-MAR-2018, integrated into UniProtKB/TrEMBL.
DT 28-MAR-2018, sequence version 1.
DT 28-JAN-2026, entry version 44.
DE RecName: Full=Calcium-transporting ATPase {ECO:0000256|RuleBase:RU361146};
DE EC=7.2.2.10 {ECO:0000256|RuleBase:RU361146};
GN Name=ATP2A2 {ECO:0000313|Ensembl:ENSCATP00000021930.1};
OS Cercocebus atys (Sooty mangabey) (Cercocebus torquatus atys).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini;
OC Cercopithecidae; Cercopithecinae; Cercocebus.
OX NCBI_TaxID=9531 {ECO:0000313|Ensembl:ENSCATP00000021930.1, ECO:0000313|Proteomes:UP000233060};
RN [1] {ECO:0000313|Ensembl:ENSCATP00000021930.1}
RP IDENTIFICATION.
RG Ensembl;
RL Submitted (AUG-2025) to UniProtKB.
RN [2] {ECO:0000313|Ensembl:ENSCATP00000021930.1}
RP IDENTIFICATION.
RG Ensembl;
RL Submitted (SEP-2025) to UniProtKB.
CC -!- FUNCTION: Catalyzes the hydrolysis of ATP coupled with the transport of
CC calcium. {ECO:0000256|RuleBase:RU361146}.
CC -!- FUNCTION: Involved in the regulation of the contraction/relaxation
CC cycle. Acts as a regulator of TNFSF11-mediated Ca(2+) signaling
CC pathways via its interaction with TMEM64 which is critical for the
CC TNFSF11-induced CREB1 activation and mitochondrial ROS generation
CC necessary for proper osteoclast generation. Association between TMEM64
CC and SERCA2 in the ER leads to cytosolic Ca(2+) spiking for activation
CC of NFATC1 and production of mitochondrial ROS, thereby triggering
CC Ca(2+) signaling cascades that promote osteoclast differentiation and
CC activation. {ECO:0000256|ARBA:ARBA00045414}.
CC -!- FUNCTION: This magnesium-dependent enzyme catalyzes the hydrolysis of
CC ATP coupled with the translocation of calcium from the cytosol to the
CC sarcoplasmic reticulum lumen. Involved in autophagy in response to
CC starvation. Upon interaction with VMP1 and activation, controls ER-
CC isolation membrane contacts for autophagosome formation. Also modulates
CC ER contacts with lipid droplets, mitochondria and endosomes. In
CC coordination with FLVCR2 mediates heme-stimulated switching from
CC mitochondrial ATP synthesis to thermogenesis.
CC {ECO:0000256|ARBA:ARBA00045861}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=Ca(2+)(in) + ATP + H2O = Ca(2+)(out) + ADP + phosphate + H(+);
CC Xref=Rhea:RHEA:18105, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:29108, ChEBI:CHEBI:30616, ChEBI:CHEBI:43474,
CC ChEBI:CHEBI:456216; EC=7.2.2.10;
CC Evidence={ECO:0000256|ARBA:ARBA00047282};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:18106;
CC Evidence={ECO:0000256|ARBA:ARBA00047282};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|ARBA:ARBA00001946};
CC -!- SUBUNIT: Interacts with TRAM2 (via C-terminus).
CC {ECO:0000256|ARBA:ARBA00038773}.
CC -!- SUBCELLULAR LOCATION: Endoplasmic reticulum membrane
CC {ECO:0000256|ARBA:ARBA00004477}; Multi-pass membrane protein
CC {ECO:0000256|ARBA:ARBA00004477}. Membrane
CC {ECO:0000256|RuleBase:RU361146}; Multi-pass membrane protein
CC {ECO:0000256|RuleBase:RU361146}. Sarcoplasmic reticulum membrane
CC {ECO:0000256|ARBA:ARBA00004326}; Multi-pass membrane protein
CC {ECO:0000256|ARBA:ARBA00004326}.
CC -!- SIMILARITY: Belongs to the cation transport ATPase (P-type) (TC 3.A.3)
CC family. Type IIA subfamily. {ECO:0000256|ARBA:ARBA00005675,
CC ECO:0000256|RuleBase:RU361146}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|RuleBase:RU361146}.
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DR RefSeq; XP_011887824.1; XM_012032434.1.
DR AlphaFoldDB; A0A2K5M9Q3; -.
DR SMR; A0A2K5M9Q3; -.
DR Ensembl; ENSCATT00000046135.1; ENSCATP00000021930.1; ENSCATG00000034386.1.
DR GeneID; 105573204; -.
DR CTD; 488; -.
DR GeneTree; ENSGT00940000159986; -.
DR OMA; PLWNNMM; -.
DR Proteomes; UP000233060; Unassembled WGS sequence.
DR Bgee; ENSCATG00000034386; Expressed in heart and 12 other cell types or tissues.
DR GO; GO:0031095; C:platelet dense tubular network membrane; IEA:UniProtKB-ARBA.
DR GO; GO:0033017; C:sarcoplasmic reticulum membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR GO; GO:0016887; F:ATP hydrolysis activity; IEA:InterPro.
DR GO; GO:0005509; F:calcium ion binding; IEA:UniProtKB-ARBA.
DR GO; GO:0005388; F:P-type calcium transporter activity; IEA:UniProtKB-EC.
DR GO; GO:1990036; P:calcium ion import into sarcoplasmic reticulum; IEA:UniProtKB-ARBA.
DR GO; GO:0006874; P:intracellular calcium ion homeostasis; IEA:UniProtKB-ARBA.
DR GO; GO:0003012; P:muscle system process; IEA:UniProtKB-ARBA.
DR GO; GO:1903779; P:regulation of cardiac conduction; IEA:UniProtKB-ARBA.
DR GO; GO:0006937; P:regulation of muscle contraction; IEA:UniProtKB-ARBA.
DR CDD; cd02083; P-type_ATPase_SERCA; 1.
DR FunFam; 2.70.150.10:FF:000143; Calcium-transporting ATPase; 1.
DR FunFam; 3.40.1110.10:FF:000003; Calcium-transporting ATPase; 1.
DR FunFam; 3.40.50.1000:FF:000005; Calcium-transporting ATPase 1; 1.
DR FunFam; 1.20.1110.10:FF:000065; Sarcoplasmic/endoplasmic reticulum calcium ATPase 1; 3.
DR Gene3D; 3.40.1110.10; Calcium-transporting ATPase, cytoplasmic domain N; 1.
DR Gene3D; 2.70.150.10; Calcium-transporting ATPase, cytoplasmic transduction domain A; 1.
DR Gene3D; 1.20.1110.10; Calcium-transporting ATPase, transmembrane domain; 1.
DR Gene3D; 3.40.50.1000; HAD superfamily/HAD-like; 1.
DR InterPro; IPR006068; ATPase_P-typ_cation-transptr_C.
DR InterPro; IPR004014; ATPase_P-typ_cation-transptr_N.
DR InterPro; IPR023299; ATPase_P-typ_cyto_dom_N.
DR InterPro; IPR018303; ATPase_P-typ_P_site.
DR InterPro; IPR023298; ATPase_P-typ_TM_dom_sf.
DR InterPro; IPR008250; ATPase_P-typ_transduc_dom_A_sf.
DR InterPro; IPR059000; ATPase_P-type_domA.
DR InterPro; IPR036412; HAD-like_sf.
DR InterPro; IPR023214; HAD_sf.
DR InterPro; IPR005782; P-type_ATPase_IIA.
DR InterPro; IPR001757; P_typ_ATPase.
DR InterPro; IPR044492; P_typ_ATPase_HD_dom.
DR NCBIfam; TIGR01116; ATPase-IIA1_Ca; 1.
DR NCBIfam; TIGR01494; ATPase_P-type; 3.
DR PANTHER; PTHR42861; CALCIUM-TRANSPORTING ATPASE; 1.
DR Pfam; PF13246; Cation_ATPase; 1.
DR Pfam; PF00689; Cation_ATPase_C; 1.
DR Pfam; PF00690; Cation_ATPase_N; 1.
DR Pfam; PF00122; E1-E2_ATPase; 1.
DR Pfam; PF08282; Hydrolase_3; 1.
DR PRINTS; PR00119; CATATPASE.
DR PRINTS; PR00120; HATPASE.
DR SFLD; SFLDG00002; C1.7:_P-type_atpase_like; 1.
DR SFLD; SFLDS00003; Haloacid_Dehalogenase; 1.
DR SFLD; SFLDF00027; p-type_atpase; 1.
DR SMART; SM00831; Cation_ATPase_N; 1.
DR SUPFAM; SSF81653; Calcium ATPase, transduction domain A; 1.
DR SUPFAM; SSF81665; Calcium ATPase, transmembrane domain M; 1.
DR SUPFAM; SSF56784; HAD-like; 1.
DR SUPFAM; SSF81660; Metal cation-transporting ATPase, ATP-binding domain N; 1.
DR PROSITE; PS00154; ATPASE_E1_E2; 1.
PE 3: Inferred from homology;
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|RuleBase:RU361146};
KW Calcium {ECO:0000256|ARBA:ARBA00022837, ECO:0000256|RuleBase:RU361146};
KW Calcium transport {ECO:0000256|ARBA:ARBA00022568,
KW ECO:0000256|RuleBase:RU361146};
KW Endoplasmic reticulum {ECO:0000256|ARBA:ARBA00022824};
KW Ion transport {ECO:0000256|ARBA:ARBA00023065,
KW ECO:0000256|RuleBase:RU361146}; Magnesium {ECO:0000256|ARBA:ARBA00022842};
KW Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|RuleBase:RU361146};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741,
KW ECO:0000256|RuleBase:RU361146};
KW Phosphoprotein {ECO:0000256|ARBA:ARBA00022553};
KW Reference proteome {ECO:0000313|Proteomes:UP000233060};
KW Sarcoplasmic reticulum {ECO:0000256|ARBA:ARBA00022951};
KW Translocase {ECO:0000256|ARBA:ARBA00022967};
KW Transmembrane {ECO:0000256|ARBA:ARBA00022692,
KW ECO:0000256|RuleBase:RU361146};
KW Transmembrane helix {ECO:0000256|ARBA:ARBA00022989,
KW ECO:0000256|RuleBase:RU361146};
KW Transport {ECO:0000256|ARBA:ARBA00022448, ECO:0000256|RuleBase:RU361146}.
FT TRANSMEM 60..78
FT /note="Helical"
FT /evidence="ECO:0000256|RuleBase:RU361146"
FT TRANSMEM 84..107
FT /note="Helical"
FT /evidence="ECO:0000256|RuleBase:RU361146"
FT TRANSMEM 260..280
FT /note="Helical"
FT /evidence="ECO:0000256|RuleBase:RU361146"
FT TRANSMEM 292..321
FT /note="Helical"
FT /evidence="ECO:0000256|RuleBase:RU361146"
FT TRANSMEM 759..782
FT /note="Helical"
FT /evidence="ECO:0000256|RuleBase:RU361146"
FT TRANSMEM 833..856
FT /note="Helical"
FT /evidence="ECO:0000256|RuleBase:RU361146"
FT TRANSMEM 930..949
FT /note="Helical"
FT /evidence="ECO:0000256|RuleBase:RU361146"
FT DOMAIN 3..77
FT /note="Cation-transporting P-type ATPase N-terminal"
FT /evidence="ECO:0000259|SMART:SM00831"
SQ SEQUENCE 999 AA; 109937 MW; 7DB3D6A9B1AA10E7 CRC64;
MENAHTKTVE EVLGHFGVNE STGLSLEQVK KLKERWGSNE LPAEEGKTLL ELVIEQFEDL
LVRILLLAAC ISFVLAWFEE GEETITAFVE PFVILLILVA NAIVGVWQER NAENAIEALK
EYEPEMGKVY RQDRKSVQRI KAKDIVPGDI VEIAVGDKVP ADIRLTSIKS TTLRVDQSIL
TGESVSVIKH TDPVPDPRAV NQDKKNMLFS GTNIAAGKAM GVVVATGVNT EIGKIRDEMV
ATEQERTPLQ QKLDEFGEQL SKVISLICIA VWIINIGHFN DPVHGGSWIR GAIYYFKIAV
ALAVAAIPEG LPAVITTCLA LGTRRMAKKN AIVRSLPSVE TLGCTSVICS DKTGTLTTNQ
MSVCRMFILD RVEGDTCSLN EFTITGSTYA PIGEVHKDDK PVKCHQYDGL VELATICALC
NDSALDYNEA KGVYEKVGEA TETALTCLVE KMNVFDTELK GLSKIERANA CNSVIKQLMK
KEFTLEFSRD RKSMSVYCTP NKPSRTSMSK MFVKGAPEGV IDRCTHIRVG STKVPMTSGV
KQKIMSVIRE WGSGSDTLRC LALATHDNPL RREEMHLEDS ANFIKYETNL TFVGCVGMLD
PPRIEVASSV KLCRQAGIRV IMITGDNKGT AVAICRRIGI FGQDEDVTSK AFTGREFDEL
NPSAQRDACL NARCFARVEP SHKSKIVEFL QSFDEITAMT GDGVNDAPAL KKSEIGIAMG
SGTAVAKTAS EMVLADDNFS TIVAAVEEGR AIYNNMKQFI RYLISSNVGE VVCIFLTAAL
GFPEALIPVQ LLWVNLVTDG LPATALGFNP PDLDIMNKPP RNPKEPLISG WLFFRYLAIG
CYVGAATVGA AAWWFIAADG GPRVTFYQLS HFLQCKEDNP DFEGVDCAIF ESPYPMTMAL
SVLVTIEMCN ALNSLSENQS LLRMPPWENI WLVGSICLSM SLHFLILYVE PLPLIFQITP
LNVTQWLMVL KISLPVILMD ETLKFVARNY LEPVLSSEL
//
