KEGG   PATHWAY: hsa04961
hsa04961                    Pathway                                

Endocrine and other factor-regulated calcium reabsorption - Homo sapiens (human)
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.
Organismal Systems; Excretory system
Pathway map
hsa04961  Endocrine and other factor-regulated calcium reabsorption

nt06318  CaSR-PTH signaling
N00288  PTH-PTH1R-PKA signaling pathway
H00680  Primary failure of tooth eruption
H00700  Centronuclear myopathy
H00784  Localized autosomal recessive hypotrichosis
H00998  Alternating hemiplegia of childhood
H01143  Vitamin D-dependent rickets
H01193  Familial tumoral calcinosis
H01593  Osteoporosis
H02026  Familial hypocalciuric hypercalcemia
D00105  Estradiol (JAN/USP/INN)
D00122  Calcifediol (USP/INN)
D00129  Calcitriol (JAN/USP/INN)
D00185  Estriol (JP17/USP)
D00187  Ergocalciferol (JP17/USP)
D00188  Cholecalciferol (JP17/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)
D01125  Calcipotriene (USP)
D01472  Tacalcitol hydrate (JP17)
D01518  Alfacalcidol (JAN/INN)
D01662  Falecalcitriol (JAN/INN)
D02217  Raloxifene hydrochloride (JAN/USP)
D03062  Bazedoxifene acetate (JAN/USAN)
D03358  Teriparatide acetate (JAN)
D03930  Ecalcidene (USAN/INN)
D04492  Icatibant acetate (JAN/USAN)
D04672  Lasofoxifene tartrate (JAN/USAN)
D05364  Parathyroid hormone (human) (USAN)
D06078  Teriparatide (USP/INN)
D06546  Teriparatide acetate (USAN)
D07578  Eldecalcitol (JAN/INN)
D08465  Raloxifene (INN)
D08554  Tacalcitol (INN)
D08868  Becocalcidiol (USAN/INN)
D09834  Levormeloxifene fumarate (JAN)
D10008  Fispemifene (USAN/INN)
D10198  Calcipotriol hydrate (JAN)
D10606  Raloxifene hydrochloride hydrate (JAN)
D11563  Abaloparatide acetate (JAN)
Homo sapiens (human) [GN:hsa]
5741  PTH; parathyroid hormone [KO:K05261]
5745  PTH1R; parathyroid hormone 1 receptor [KO:K04585]
2778  GNAS; GNAS complex locus [KO:K04632]
112  ADCY6; adenylate cyclase 6 [KO:K08046] [EC:]
115  ADCY9; adenylate cyclase 9 [KO:K08049] [EC:]
5566  PRKACA; protein kinase cAMP-activated catalytic subunit alpha [KO:K04345] [EC:]
5567  PRKACB; protein kinase cAMP-activated catalytic subunit beta [KO:K04345] [EC:]
5568  PRKACG; protein kinase cAMP-activated catalytic subunit gamma [KO:K04345] [EC:]
7421  VDR; vitamin D receptor [KO:K08539]
2099  ESR1; estrogen receptor 1 [KO:K08550]
56302  TRPV5; transient receptor potential cation channel subfamily V member 5 [KO:K04974]
9365  KL; klotho [KO:K14756] [EC:]
1759  DNM1; dynamin 1 [KO:K01528] [EC:]
26052  DNM3; dynamin 3 [KO:K01528] [EC:]
1785  DNM2; dynamin 2 [KO:K23484] [EC:]
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]
1211  CLTA; clathrin light chain A [KO:K04644]
1212  CLTB; clathrin light chain B [KO:K04645]
1213  CLTC; clathrin heavy chain [KO:K04646]
8218  CLTCL1; clathrin heavy chain like 1 [KO:K04646]
8766  RAB11A; RAB11A, member RAS oncogene family [KO:K07904]
793  CALB1; calbindin 1 [KO:K14757]
476  ATP1A1; ATPase Na+/K+ transporting subunit alpha 1 [KO:K01539] [EC:]
477  ATP1A2; ATPase Na+/K+ transporting subunit alpha 2 [KO:K01539] [EC:]
478  ATP1A3; ATPase Na+/K+ transporting subunit alpha 3 [KO:K01539] [EC:]
480  ATP1A4; ATPase Na+/K+ transporting subunit alpha 4 [KO:K01539] [EC:]
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]
490  ATP2B1; ATPase plasma membrane Ca2+ transporting 1 [KO:K05850] [EC:]
492  ATP2B3; ATPase plasma membrane Ca2+ transporting 3 [KO:K05850] [EC:]
493  ATP2B4; ATPase plasma membrane Ca2+ transporting 4 [KO:K05850] [EC:]
491  ATP2B2; ATPase plasma membrane Ca2+ transporting 2 [KO:K05850] [EC:]
3817  KLK2; kallikrein related peptidase 2 [KO:K01325] [EC:]
3816  KLK1; kallikrein 1 [KO:K01325] [EC:]
624  BDKRB2; bradykinin receptor B2 [KO:K03916]
2776  GNAQ; G protein subunit alpha q [KO:K04634]
23236  PLCB1; phospholipase C beta 1 [KO:K05858] [EC:]
5330  PLCB2; phospholipase C beta 2 [KO:K05858] [EC:]
5331  PLCB3; phospholipase C beta 3 [KO:K05858] [EC:]
5332  PLCB4; phospholipase C beta 4 [KO:K05858] [EC:]
5578  PRKCA; protein kinase C alpha [KO:K02677] [EC:]
5579  PRKCB; protein kinase C beta [KO:K19662] [EC:]
5582  PRKCG; protein kinase C gamma [KO:K19663] [EC:]
C00076  Calcium cation
C00165  Diacylglycerol
C00238  Potassium cation
C00575  3',5'-Cyclic AMP
C00951  Estradiol-17beta
C01245  D-myo-Inositol 1,4,5-trisphosphate
C01330  Sodium cation
C01673  Calcitriol
Boros S, Bindels RJ, Hoenderop JG
Active Ca(2+) reabsorption in the connecting tubule.
Pflugers Arch 458:99-109 (2009)
Lambers TT, Bindels RJ, Hoenderop JG
Coordinated control of renal Ca2+ handling.
Kidney Int 69:650-4 (2006)
de Groot T, Bindels RJ, Hoenderop JG
TRPV5: an ingeniously controlled calcium channel.
Kidney Int 74:1241-6 (2008)
Markadieu N, Bindels RJ, Hoenderop JG
The renal connecting tubule: Resolved and unresolved issues in Ca(2+) transport.
Int J Biochem Cell Biol 43:1-4 (2011)
Hoenderop JG, Nilius B, Bindels RJ
Calcium absorption across epithelia.
Physiol Rev 85:373-422 (2005)
van Abel M, Hoenderop JG, Bindels RJ
The epithelial calcium channels TRPV5 and TRPV6: regulation and implications for disease.
Naunyn Schmiedebergs Arch Pharmacol 371:295-306 (2005)
Nijenhuis T, Hoenderop JG, Bindels RJ
TRPV5 and TRPV6 in Ca(2+) (re)absorption: regulating Ca(2+) entry at the gate.
Pflugers Arch 451:181-92 (2005)
Hoenderop JG, Nilius B, Bindels RJ
Epithelial calcium channels: from identification to function and regulation.
Pflugers Arch 446:304-8 (2003)
Gkika D, Topala CN, Chang Q, Picard N, Thebault S, Houillier P, Hoenderop JG, Bindels RJ
Tissue kallikrein stimulates Ca(2+) reabsorption via PKC-dependent plasma membrane accumulation of TRPV5.
EMBO J 25:4707-16 (2006)
Schoeber JP, Hoenderop JG, Bindels RJ
Concerted action of associated proteins in the regulation of TRPV5 and TRPV6.
Biochem Soc Trans 35:115-9 (2007)
Renkema KY, Alexander RT, Bindels RJ, Hoenderop JG
Calcium and phosphate homeostasis: concerted interplay of new regulators.
Ann Med 40:82-91 (2008)
de Groot T, Lee K, Langeslag M, Xi Q, Jalink K, Bindels RJ, Hoenderop JG
Parathyroid hormone activates TRPV5 via PKA-dependent phosphorylation.
J Am Soc Nephrol 20:1693-704 (2009)
hsa04144  Endocytosis
hsa04530  Tight junction
KO pathway

DBGET integrated database retrieval system