Entry
Name
Endocrine and other factor-regulated calcium reabsorption - Homo sapiens (human)
Description
Calcium (Ca2+) is essential for numerous physiological functions including intracellular signalling processes, neuronal excitability, muscle contraction and bone formation. Therefore, its homeostasis is finely maintained through the coordination of intestinal absorption, renal reabsorption, and bone resorption. In kidney, the late part of the distal convoluted tubule (DCT) and the connecting tubule (CNT) are the site of active Ca2+ transport and precisely regulate Ca2+ reabsorption. Following Ca2+ entry through TRPV5, Ca2+ bound to calbindin-D28K diffuses to the basolateral side, where it is extruded into the blood compartment through NCX1 and to a lesser extent PMCA1b. In the urinary compartment, both klotho and tissue kallikrein (TK) increase the apical abundance of TRPV5. In the blood compartment, PTH, 1,25(OH)2D3 and estrogen increase the transcription and protein expression of the luminal Ca2+ channels, calbindins, and the extrusion systems.
Class
Organismal Systems; Excretory system
BRITE hierarchy
Pathway map
hsa04961 Endocrine and other factor-regulated calcium reabsorption
Ortholog table
Network
Element
N00288 PTH-PTH1R-PKA signaling pathway
Drug
D00105 Estradiol (JAN/USP/INN)
D00129 Calcitriol (JAN/USP/INN)
D00187 Ergocalciferol (JP18/USP)
D00188 Cholecalciferol (JP18/USP)
D00299 Dihydrotachysterol (JAN/USP/INN)
D00628 Secalciferol (JAN/USAN/INN)
D00930 Paricalcitol (JAN/USP/INN)
D01009 Doxercalciferol (USAN/INN)
D01098 Maxacalcitol (JAN/USAN/INN)
D01472 Tacalcitol hydrate (JP18)
D01662 Falecalcitriol (JAN/INN)
D02217 Raloxifene hydrochloride (JAN/USP)
D03062 Bazedoxifene acetate (JAN/USAN)
D03358 Teriparatide acetate (JAN)
D04492 Icatibant acetate (JAN/USAN)
D04672 Lasofoxifene tartrate (JAN/USAN)
D05364 Parathyroid hormone (human) (USAN)
D06546 Teriparatide acetate (USAN)
D08868 Becocalcidiol (USAN/INN)
D09834 Levormeloxifene fumarate (JAN)
D10198 Calcipotriol hydrate (JAN)
D10606 Raloxifene hydrochloride hydrate (JAN)
D11563 Abaloparatide acetate (JAN)
D12395 Palopegteriparatide (JAN/USAN/INN)
D12628 Vepdegestrant (JAN/USAN/INN)
D12805 Eneboparatide (USAN/INN)
D12827 Palazestrant (USAN/INN)
D12830 Rinvecalinase alfa (USAN/INN)
Organism
Homo sapiens (human) [GN:
hsa ]
Gene
5745 PTH1R; parathyroid hormone 1 receptor [KO:K04585 ]
56302 TRPV5; transient receptor potential cation channel subfamily V member 5 [KO:K04974 ]
161 AP2A2; adaptor related protein complex 2 subunit alpha 2 [KO:K11824 ]
160 AP2A1; adaptor related protein complex 2 subunit alpha 1 [KO:K11824 ]
163 AP2B1; adaptor related protein complex 2 subunit beta 1 [KO:K11825 ]
1173 AP2M1; adaptor related protein complex 2 subunit mu 1 [KO:K11826 ]
1175 AP2S1; adaptor related protein complex 2 subunit sigma 1 [KO:K11827 ]
8218 CLTCL1; clathrin heavy chain like 1 [KO:K04646 ]
8766 RAB11A; RAB11A, member RAS oncogene family [KO:K07904 ]
23439 ATP1B4; ATPase Na+/K+ transporting family member beta 4 [KO:K01540 ]
481 ATP1B1; ATPase Na+/K+ transporting subunit beta 1 [KO:K01540 ]
482 ATP1B2; ATPase Na+/K+ transporting subunit beta 2 [KO:K01540 ]
483 ATP1B3; ATPase Na+/K+ transporting subunit beta 3 [KO:K01540 ]
486 FXYD2; FXYD domain containing ion transport regulator 2 [KO:K01538 ]
6546 SLC8A1; solute carrier family 8 member A1 [KO:K05849 ]
6543 SLC8A2; solute carrier family 8 member A2 [KO:K05849 ]
6547 SLC8A3; solute carrier family 8 member A3 [KO:K05849 ]
624 BDKRB2; bradykinin receptor B2 [KO:K03916 ]
Compound
C01245 D-myo-Inositol 1,4,5-trisphosphate
Reference
Authors
Boros S, Bindels RJ, Hoenderop JG
Title
Active Ca(2+) reabsorption in the connecting tubule.
Journal
Reference
Authors
Lambers TT, Bindels RJ, Hoenderop JG
Title
Coordinated control of renal Ca2+ handling.
Journal
Reference
Authors
de Groot T, Bindels RJ, Hoenderop JG
Title
TRPV5: an ingeniously controlled calcium channel.
Journal
Reference
Authors
Markadieu N, Bindels RJ, Hoenderop JG
Title
The renal connecting tubule: Resolved and unresolved issues in Ca(2+) transport.
Journal
Reference
Authors
Hoenderop JG, Nilius B, Bindels RJ
Title
Calcium absorption across epithelia.
Journal
Reference
Authors
van Abel M, Hoenderop JG, Bindels RJ
Title
The epithelial calcium channels TRPV5 and TRPV6: regulation and implications for disease.
Journal
Reference
Authors
Nijenhuis T, Hoenderop JG, Bindels RJ
Title
TRPV5 and TRPV6 in Ca(2+) (re)absorption: regulating Ca(2+) entry at the gate.
Journal
Reference
Authors
Hoenderop JG, Nilius B, Bindels RJ
Title
Epithelial calcium channels: from identification to function and regulation.
Journal
Reference
Authors
Gkika D, Topala CN, Chang Q, Picard N, Thebault S, Houillier P, Hoenderop JG, Bindels RJ
Title
Tissue kallikrein stimulates Ca(2+) reabsorption via PKC-dependent plasma membrane accumulation of TRPV5.
Journal
Reference
Authors
Schoeber JP, Hoenderop JG, Bindels RJ
Title
Concerted action of associated proteins in the regulation of TRPV5 and TRPV6.
Journal
Reference
Authors
Renkema KY, Alexander RT, Bindels RJ, Hoenderop JG
Title
Calcium and phosphate homeostasis: concerted interplay of new regulators.
Journal
Reference
Authors
de Groot T, Lee K, Langeslag M, Xi Q, Jalink K, Bindels RJ, Hoenderop JG
Title
Parathyroid hormone activates TRPV5 via PKA-dependent phosphorylation.
Journal
Related pathway
KO pathway
LinkDB
All DBs