CA Ⅱ
Carbonic Anhydrase II (CA II) is a cytosolic zinc metalloenzyme that catalyzes the reversible hydration of carbon dioxide to bicarbonate and a proton, a reaction central to acid-base homeostasis, carbon dioxide transport, and cellular pH regulation[1][2]. CA II is the best-characterized human carbonic anhydrase isoform and exhibits exceptionally high catalytic efficiency, making it a key regulator of bicarbonate-dependent physiological processes in erythrocytes, kidney, bone, eye, and other tissues[2][3]. Mechanistically, CA II supports bicarbonate transport and acidification pathways that are required for renal bicarbonate reabsorption and osteoclast-mediated bone resorption[1][4]. In disease settings, inherited CA II deficiency causes the autosomal recessive syndrome characterized by osteopetrosis, renal tubular acidosis, and cerebral calcification, providing direct genetic evidence for the essential role of this isoform in bone and renal physiology[4][5]. Compared with related carbonic anhydrase isoforms, CA II is distinguished by its broad tissue distribution, dominant catalytic activity, and well-established involvement in bicarbonate transport metabolons and vascular regulatory processes[3][6]. These characteristics have made CA II one of the most extensively studied experimental models for enzyme catalysis, structure-guided drug discovery, and inhibitor development[3][7]. Sulfonamide-based carbonic anhydrase inhibitors, including clinically used agents, bind the catalytic zinc center and have been widely employed to investigate CA II function and therapeutic modulation in disorders such as glaucoma and other bicarbonate-dependent pathologies[6][7].
References:
- [1]. Sly WS, et al. Carbonic anhydrase II deficiency identified as the primary defect in the autosomal recessive syndrome of osteopetrosis with renal tubular acidosis and cerebral calcification. Proc Natl Acad Sci U S A. 1983 May;80(9):2752-6. [Content Brief]
- [2]. Roy BC, et al. Two-prong inhibitors for human carbonic anhydrase II. J Am Chem Soc. 2004 Oct 20;126(41):13206-7. [Content Brief]
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CA Ⅱ Related Products (119)
Related Products (119)
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Recombinant Proteins (3)
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Methyl acetazolamide
0 ImagesMethyl acetazolamide (Propazolamide) is a carbonic anhydrase inhibitor with Ki values of 37.5 nM against Enterococcus faecium α-CA, 250.1 nM against Enterococcus faecium γ-CA, 235.4 nM against human CA I, and 37.2 nM against human CA II. Methyl acetazolamide can be used for the research of enterococcus infections.
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L-650719
0 ImagesCat. No.: HY-129781CAS No.: 96803-89-3L-650719 is a topical carbonic anhydrase inhibitor (CAI) with a Ki of 10 nM for CA II. L-650719 has shown good intraocular pressure-lowering effects in a rabbit model. L-650719 may be used in glaucoma research.
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VEGFR/PDGFR/CA II-IN-1
0 ImagesCat. No.: HY-184656CAS No.: 3099422-14-4VEGFR/PDGFR/CA II-IN-1 is a VEGFR/PDGFR/CA II inhibitor. VEGFR/PDGFR/CA II-IN-1 potently inhibits VEGFR2 (IC50 = 62.66 nM), PDGFRα (IC50 = 18.65 nM), PDGFRβ (IC50 = 5.23 nM), and hCA II (Ki = 19.4 nM), with weaker activity against hCA I (Ki = 154.2 nM) and hCA IX (Ki = 121.0 nM). VEGFR/PDGFR/CA II-IN-1 exhibits potent antiproliferative activity in VEGFR2-BAF3 cells and robust inhibition of angiogenesis in human umbilical vein endothelial cells (HUVECs). VEGFR/PDGFR/CA II-IN-1 inhibits the formation of corneal neovascularization in rabbits through multiple signaling pathways, and significantly reduced intraocular pressure (IOP) in both acute and chronic glaucoma models. VEGFR/PDGFR/CA II-IN-1 can be used to study neovascular glaucoma (NVG).
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CAII-IN-14
0 ImagesCat. No.: HY-181510CAII-IN-14 (Compound 3o) is a human carbonic anhydrase II (hCA II) inhibitor with a Ki value of 1.65 nM. CAII-IN-14 also inhibits hCA I(Ki = 6.15 nM) and hCA IX(Ki = 5.43 nM). CAII-IN-14 exhibits predicted drug-like properties.
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AChE/hCA I-IN-1
0 ImagesCat. No.: HY-170560CAS No.: 155140-19-5AChE/hCA I-IN-1 (Compound L3) is the inhibitor for acetylcholinesterase (AChE) and carbonic anhydrase (CA), that inhibits AChE, hCA I and hCA II with IC50 of 302, 265 and 283 nM, respectively.
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CAI/II-IN-2
0 ImagesCat. No.: HY-147922CAS No.: 2480283-75-6CAI/II-IN-2 (compound 2b) is a potent dual hCA I/II inhibitor with Ki values of 40.97, 15.15 and 61.88 nM for hCA I, hCA II and hCA Ⅸ. CAI/II-IN-2 possesses anti-hypoxic activity against acute mountain sickness (AMS) and low cellular activity.
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PROTAC hCAII degrader-1
0 ImagesCat. No.: HY-179467CAS No.: 2892306-56-6PROTAC hCAII degrader-1 is a potent PROTAC human carbonic anhydrase II (hCAII) degrader with an DC50 of 0.5 nM in HEK293 cells. PROTAC hCAII degrader-1 recruits cereblon (CRBN) E3 ubiquitin ligase to form a ternary complex. PROTAC hCAII degrader-1 enables ubiquitination and subsequent proteasomal degradation of hCAII.
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hCAIX-IN-17
0 ImagesCat. No.: HY-146007hCA IX-IN-1 (Compound 6f) is a human carbonic anhydrase (hCA) inhibitor with Ki values of 331.4, 28.4, 9.4 and 17.8 nM against hCA I, hCA II, hCA IX and hCA XII, respectively. hCA IX-IN-1 shows anticancer activity.
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Carbonic anhydrase/AChE-IN-1
0 ImagesCat. No.: HY-161142CAS No.: 3029817-10-2Carbonic anhydrase/AChE-IN-1 (compound 16) is a carbonic anhydrase and AChE inhibitor with Kis of 24.42 nM, 19.95 nM, and 5.07 nM for hCA I, hCA II, and AChE, respectively.
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CAI/II-IN-3
0 ImagesCat. No.: HY-147923CAS No.: 2480283-93-8CAI/II-IN-3 (compound 5b) is a potent dual hCA I/II inhibitor with Ki values of 51.25, 13.15 and 42.18 nM for hCA I, hCA II and hCA Ⅸ. CAI/II-IN-3 possesses anti-hypoxic activity against acute mountain sickness (AMS) and low cellular activity.
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CAII-IN-16
0 ImagesCat. No.: HY-184559CAS No.: 2673323-38-9CAII-IN-16 is a selective inhibitor of carbonic anhydrase II (CA II), with an IC50 of 0.5 nM against hCA II. CAII-IN-16 exhibits excellent intraocular pressure-lowering activity in a rabbit glaucoma animal model. CAII-IN-16 can be used for the research of glaucoma.
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COX-2-IN-30
0 ImagesCat. No.: HY-149269CAS No.: 1160498-08-7COX-2-IN-30 is a benzenesulfonamide derivative, as well as an orally active and dual inhibitor of COX (IC50=49 nM for COX-2, 10.4 μM for COX-1) and 5-LOX (IC50=2.4 μM). COX-2-IN-30 also inhibits transmembrane hCA IX and hCA XII isoform with nanomolar calss Ki values. COX-2-IN-30 exhibits analgesic, anti-inflammatory, and ulcerogenic activities, and does not show acute gastric effect.
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CAI/II-IN-5
0 ImagesCat. No.: HY-147955CAS No.: 2428389-67-5CAI/II-IN-5 (compound MZ8) is a potent hCA I and hCA II (human carbonic anhydrase isoenzymes I and II) inhibitor, with IC50 values of 37.88 and 45.23 nM, respectively. CAI/II-IN-5 also shows inhibition profile against α-Glycosidase and AChE, with IC50 values of 48.98 and 420.14 nM, respectively. CAI/II-IN-5 can be used for the research of many diseases such as diabetes, Alzheimer’s disease, heart failure, ulcer, and epilepsy.
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hCAII-IN-5
0 ImagesCat. No.: HY-150975CAS No.: 2816080-16-5hCAII-IN-5 (compound 12h) is a potent and selective hCA II inhibitor with an IC50 value of 4.55 μM.
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hCAII-IN-6
0 ImagesCat. No.: HY-144264CAS No.: 3067465-38-4hCAII-IN-6 (Compound S-13) is a potent human carbonic anhydrase II (hCA II) inhibitor with a Ki of 4.4 nM. hCAII-IN-6 also inhibits other hCAs isoforms I, IV and IX, with Ki values of 9.2 nM, 480.2 nM and 14.7 nM, respectively. hCAII-IN-6 can be used for glaucoma research.
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CAII/lX-IN-1
0 ImagesCat. No.: HY-181689CAS No.: 2955799-99-0CAII/lX-IN-1 (compound 14 (21,301,644)) is an inhibitor belonging to the N-acyl sulfonamides class, which selectively targets Carbonic Anhydrase IX and II. The IC50 values of CAII/lX-IN-1 against hCA-IX and hCA-II are 1.2 μM and 6.7 μM, respectively, with corresponding Ki values of 0.9 and 4.8.
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CA IX-IN-2
0 ImagesCat. No.: HY-159122CAS No.: 3009842-92-3CA IX-IN-2 (Compound 9o) is an inhibitor for carbonic anhydrase (CA), that inhibits CA IX, CA XII and CA II with an IC50 of 5.6, 7.4 and 430 nM, respectively. CA IX-IN-2 inhibits the proliferation of cancer cell HCT-116, SW480, MDA-MB 231 and MCF-7, with IC50s of 14.63-29.33 μM. CA IX-IN-2 intercalates DNA, arrests cell cycle at G1/S phase, and induces apoptosis in MDA-MB-231. CA IX-IN-2 affects the mitochondrial membrane potential (MMP), increases the intracellular ROS levels, causes mitochondrial damage, and inhibits the cell migration of MDA-MB-231. CA IX-IN-2 exhibits antitumor efficacy in mouse models.
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hCA I-IN-4
0 ImagesCat. No.: HY-169962CAS No.: 3054159-56-4hCA I-IN-4 (Compound 14) is the inhibitor for carbonic anhydrase and cholinesterase, that inhibits hCA I, hCA II, AChE, and BChE with Ki of 29.94 nM, 17.72 nM, 21.21 nM, and 7.65 nMrespectively. hCA I-IN-4 exhibits cytotoxicity in BT-549 with IC50 of 16.59 μM.
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COX-2/CA II-1
0 ImagesCat. No.: HY-184937COX-2/CA II-1 is an orally active dual selective inhibitor targeting COX-2 and hCA II. COX-2/CA II-1 inhibits COX-2 with an IC50 value of 0.13 μM (SI = 9.25 vs COX-1) and hCA II with a Ki value of 39.1 nM (SI = 933.8 vs hCA I). COX-2/CA II-1 demonstrates significant analgesic and anti-inflammatory effects in animal models, shows improved gastric safety with reduced ulcerogenic liability, and exhibits intraocular pressure (IOP)-lowering effects in rabbit glaucoma models. COX-2/CA II-1 can be used for anti-inflammatory, analgesic and antiglaucoma research.
