P51798 (CLCN7_HUMAN) Reviewed, UniProtKB/Swiss-Prot
Last modified
January 25, 2012.
Version 126.
History...
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Web links·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Web links·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: H(+)/Cl(-) exchange transporter 7 Alternative name(s): Chloride channel protein 7 Short name=ClC-7 | ||
| Gene names |
| ||
| Organism | Homo sapiens (Human) | ||
| Taxonomic identifier | 9606 [NCBI] | ||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo |
Protein attributes
| Sequence length | 805 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Mediates the exchange of chloride ions against protons. Functions as antiporter and contributes to the acidification of the lysosome lumen. Ref.10 |
| Subcellular location | Lysosome membrane; Multi-pass membrane protein Ref.9 Ref.10. |
| Tissue specificity | Brain, testis, muscle and kidney. |
| Involvement in disease | Defects in CLCN7 are the cause of osteopetrosis autosomal recessive type 4 (OPTB4) [MIM:611490]; also known as infantile malignant osteopetrosis type 2. Osteopetrosis is a rare genetic disease characterized by abnormally dense bone, due to defective resorption of immature bone. The disorder occurs in two forms: a severe autosomal recessive form occurring in utero, infancy, or childhood, and a benign autosomal dominant form occurring in adolescence or adulthood. Ref.11 Ref.12 Ref.13 Ref.14 Ref.15 Defects in CLCN7 are the cause of osteopetrosis autosomal dominant type 2 (OPTA2) [MIM:166600]; also known as autosomal dominant Albers-Schonberg disease or marble disease autosomal dominant. Osteopetrosis is a rare genetic disease characterized by abnormally dense bone, due to defective resorption of immature bone. The disorder occurs in two forms: a severe autosomal recessive form occurring in utero, infancy, or childhood, and a benign autosomal dominant form occurring in adolescence or adulthood. OPTA2 is the most common form of osteopetrosis, occurring in adolescence or adulthood. It is characterized by sclerosis, predominantly involving the spine, the pelvis and the skull base. |
| Miscellaneous | The CLC channel family contains both chloride channels and proton-coupled anion transporters that exchange chloride or another anion for protons. The presence of conserved gating glutamate residues is typical for family members that function as antiporters By similarity. |
| Sequence similarities | Belongs to the chloride channel (TC 2.A.49) family. ClC-7/CLCN7 subfamily. [View classification] Contains 2 CBS domains. |
Ontologies
| Keywords | |
|---|---|
| Biological process | Antiport Ion transport Transport |
| Cellular component | Lysosome Membrane |
| Coding sequence diversity | Polymorphism |
| Disease | Disease mutation Osteopetrosis |
| Domain | CBS domain Repeat Transmembrane Transmembrane helix |
| Ligand | ATP-binding Chloride Nucleotide-binding |
| PTM | Phosphoprotein |
| Technical term | Complete proteome Reference proteome |
| Gene Ontology (GO) | |
| Cellular component | integral to membrane Inferred from electronic annotation. Source: UniProtKB-KW lysosomal membraneInferred from electronic annotation. Source: UniProtKB-SubCell |
| Molecular function | ATP binding Inferred from electronic annotation. Source: UniProtKB-KW antiporter activityInferred from electronic annotation. Source: UniProtKB-KW voltage-gated chloride channel activityInferred from electronic annotation. Source: InterPro |
| Complete GO annotation... | |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 805 | 805 | H(+)/Cl(-) exchange transporter 7 | PRO_0000094452 | |||||
Regions | |||||||||
| Topological domain | 1 – 126 | 126 | Cytoplasmic By similarity | ||||||
| Transmembrane | 127 – 159 | 33 | Helical; By similarity | ||||||
| Transmembrane | 174 – 197 | 24 | Helical; By similarity | ||||||
| Intramembrane | 206 – 213 | 8 | Helical; By similarity | ||||||
| Transmembrane | 223 – 241 | 19 | Helical; By similarity | ||||||
| Transmembrane | 247 – 264 | 18 | Helical; By similarity | ||||||
| Intramembrane | 288 – 300 | 13 | Helical; By similarity | ||||||
| Intramembrane | 304 – 312 | 9 | Helical; By similarity | ||||||
| Transmembrane | 322 – 341 | 20 | Helical; By similarity | ||||||
| Transmembrane | 375 – 405 | 31 | Helical; By similarity | ||||||
| Transmembrane | 410 – 432 | 23 | Helical; By similarity | ||||||
| Transmembrane | 487 – 507 | 21 | Helical; By similarity | ||||||
| Transmembrane | 512 – 535 | 24 | Helical; By similarity | ||||||
| Intramembrane | 545 – 559 | 15 | Helical; By similarity | ||||||
| Intramembrane | 560 – 562 | 3 | Note=Loop between two helices; By similarity | ||||||
| Intramembrane | 563 – 574 | 12 | Helical; By similarity | ||||||
| Intramembrane | 575 – 578 | 4 | Note=Loop between two helices; By similarity | ||||||
| Transmembrane | 579 – 597 | 19 | Helical; By similarity | ||||||
| Topological domain | 598 – 805 | 208 | Cytoplasmic By similarity | ||||||
| Domain | 631 – 695 | 65 | CBS 1 | ||||||
| Domain | 741 – 799 | 59 | CBS 2 | ||||||
| Nucleotide binding | 658 – 660 | 3 | ATP By similarity | ||||||
| Nucleotide binding | 783 – 786 | 4 | ATP By similarity | ||||||
| Motif | 203 – 207 | 5 | Selectivity filter part_1 By similarity | ||||||
| Motif | 245 – 249 | 5 | Selectivity filter part_2 By similarity | ||||||
| Motif | 512 – 516 | 5 | Selectivity filter part_3 By similarity | ||||||
Sites | |||||||||
| Binding site | 204 | 1 | Chloride By similarity | ||||||
| Binding site | 514 | 1 | Chloride; via amide nitrogen By similarity | ||||||
| Binding site | 602 | 1 | Chloride By similarity | ||||||
| Site | 247 | 1 | Mediates proton transfer from the outer aqueous phase to the interior of the protein; involved in linking H(+) and Cl(-) transport By similarity | ||||||
| Site | 314 | 1 | Mediates proton transfer from the protein to the inner aqueous phase By similarity | ||||||
Amino acid modifications | |||||||||
| Modified residue | 9 | 1 | Phosphoserine Ref.8 | ||||||
| Modified residue | 60 | 1 | Phosphoserine Ref.8 | ||||||
| Modified residue | 61 | 1 | Phosphoserine Ref.8 | ||||||
Natural variations | |||||||||
| Natural variant | 132 | 1 | L → P in OPTB4. Ref.15 | VAR_064637 | |||||
| Natural variant | 214 | 1 | N → S in OPTB4. Ref.15 | VAR_064638 | |||||
| Natural variant | 215 | 1 | G → R in OPTA2. Ref.13 Ref.15 | VAR_020997 | |||||
| Natural variant | 227 | 1 | Missing in OPTB4. | VAR_064639 | |||||
| Natural variant | 240 | 1 | G → R in OPTB4. Ref.13 Ref.15 | VAR_020998 | |||||
| Natural variant | 249 | 1 | P → R in OPTB4. Ref.13 | VAR_020999 | |||||
| Natural variant | 261 | 1 | I → F in OPTB4. Ref.14 | VAR_037427 | |||||
| Natural variant | 286 | 1 | R → Q in OPTA2. Ref.13 Ref.15 | VAR_021000 | |||||
| Natural variant | 318 | 1 | F → L in OPTA2. Ref.15 | VAR_064640 | |||||
| Natural variant | 332 | 1 | M → V in OPTB4. Ref.13 | VAR_021001 | |||||
| Natural variant | 403 | 1 | R → Q in OPTB4. Ref.15 | VAR_064641 | |||||
| Natural variant | 418 | 1 | V → M. Ref.13 Corresponds to variant rs12926089 [ dbSNP | Ensembl ]. | VAR_021002 | |||||
| Natural variant | 490 | 1 | L → F in OPTA2. Ref.13 | VAR_021003 | |||||
| Natural variant | 521 | 1 | G → R in OPTB4. Ref.15 | VAR_064642 | |||||
| Natural variant | 526 | 1 | R → Q in OPTB4. Ref.15 | VAR_064643 | |||||
| Natural variant | 526 | 1 | R → W in OPTB4. Ref.13 Ref.15 | VAR_021004 | |||||
| Natural variant | 549 | 1 | L → P in OPTB4. Ref.15 | VAR_064644 | |||||
| Natural variant | 614 | 1 | L → P in OPTB4. Ref.13 | VAR_021005 | |||||
| Natural variant | 651 | 1 | L → P in OPTB4. Ref.15 | VAR_064645 | |||||
| Natural variant | 677 | 1 | G → V in OPTA2. Ref.13 | VAR_021006 | |||||
| Natural variant | 744 | 1 | S → F in OPTB4. Ref.13 | VAR_021007 | |||||
| Natural variant | 758 | 1 | F → L in OPTA2. Ref.15 | VAR_064646 | |||||
| Natural variant | 762 | 1 | R → Q in OPTA2 and OPTB4; not detected in the fibroblasts from the patient. Ref.11 Ref.15 | VAR_017838 | |||||
| Natural variant | 762 | 1 | R → W in OPTB4. Ref.15 | VAR_064647 | |||||
| Natural variant | 766 | 1 | L → P in OPTB4. Ref.12 | VAR_017839 | |||||
| Natural variant | 767 | 1 | R → P in OPTB4. Ref.15 | VAR_064648 | |||||
| Natural variant | 767 | 1 | R → Q in OPTB4. Ref.13 | VAR_021008 | |||||
| Natural variant | 767 | 1 | R → W in OPTA2 and OPTB4. Ref.12 Ref.13 Ref.15 | VAR_017840 | |||||
Experimental info | |||||||||
| Sequence conflict | 267 | 1 | T → S in CAA91556. Ref.5 | ||||||
| Sequence conflict | 279 | 1 | F → L in CAA91556. Ref.5 | ||||||
| Sequence conflict | 279 | 1 | F → L in CAA05083. Ref.6 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Ion channels in lens epithelia." Rae J.L. Submitted (JAN-2000) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [MRNA]. Tissue: Lens epithelium. |
| [2] | "Complete sequencing and characterization of 21,243 full-length human cDNAs." Ota T., Suzuki Y., Nishikawa T., Otsuki T., Sugiyama T., Irie R., Wakamatsu A., Hayashi K., Sato H., Nagai K., Kimura K., Makita H., Sekine M., Obayashi M., Nishi T., Shibahara T., Tanaka T., Ishii S. Sugano S.Nat. Genet. 36:40-45(2004) [PubMed: 14702039] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. Tissue: Brain. |
| [3] | "The sequence and analysis of duplication-rich human chromosome 16." Martin J., Han C., Gordon L.A., Terry A., Prabhakar S., She X., Xie G., Hellsten U., Chan Y.M., Altherr M., Couronne O., Aerts A., Bajorek E., Black S., Blumer H., Branscomb E., Brown N.C., Bruno W.J. Pennacchio L.A.Nature 432:988-994(2004) [PubMed: 15616553] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [4] | "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed: 15489334] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. Tissue: Skin. |
| [5] | "ClC-6 and ClC-7 are two novel broadly expressed members of the CLC chloride channel family." Brandt S., Jentsch T.J. FEBS Lett. 377:15-20(1995) [PubMed: 8543009] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 17-805. Tissue: Brain. |
| [6] | "The exon-intron architecture of human chloride channel genes is not conserved." Eggermont J. Biochim. Biophys. Acta 1397:156-160(1998) [PubMed: 9565675] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 275-432. |
| [7] | Schutte B.C., Malik M.I., Fingert J., Stone E., Lamb F.S. Submitted (MAR-1997) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 744-805. Tissue: Mammary gland. |
| [8] | "Global, in vivo, and site-specific phosphorylation dynamics in signaling networks." Olsen J.V., Blagoev B., Gnad F., Macek B., Kumar C., Mortensen P., Mann M. Cell 127:635-648(2006) [PubMed: 17081983] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-9; SER-60 AND SER-61, MASS SPECTROMETRY. Tissue: Cervix carcinoma. |
| [9] | "Integral and associated lysosomal membrane proteins." Schroeder B., Wrocklage C., Pan C., Jaeger R., Koesters B., Schaefer H., Elsaesser H.-P., Mann M., Hasilik A. Traffic 8:1676-1686(2007) [PubMed: 17897319] [Abstract] Cited for: SUBCELLULAR LOCATION [LARGE SCALE ANALYSIS], MASS SPECTROMETRY. Tissue: Placenta. |
| [10] | "The Cl-/H+ antiporter ClC-7 is the primary chloride permeation pathway in lysosomes." Graves A.R., Curran P.K., Smith C.L., Mindell J.A. Nature 453:788-792(2008) [PubMed: 18449189] [Abstract] Cited for: FUNCTION, SUBCELLULAR LOCATION. |
| [11] | "Loss of the ClC-7 chloride channel leads to osteopetrosis in mice and man." Kornak U., Kasper D., Boesl M.R., Kaiser E., Schweizer M., Schulz A., Friedrich W., Delling G., Jentsch T.J. Cell 104:205-215(2001) [PubMed: 11207362] [Abstract] Cited for: VARIANT OPTB4 GLN-762. |
| [12] | "Albers-Schonberg disease (autosomal dominant osteopetrosis, type II) results from mutations in the ClCN7 chloride channel gene." Cleiren E., Benichou O., Van Hul E., Gram J., Bollerslav J., Singer F.R., Beaverson K., Aledo A., Whyte M.P., Yoneyama T., de Vernejoul M.-C., Van Hul W. Hum. Mol. Genet. 10:2861-2867(2001) [PubMed: 11741829] [Abstract] Cited for: VARIANT OPTB4 PRO-766, VARIANT OPTA2 TRP-767. |
| [13] | "Chloride channel ClCN7 mutations are responsible for severe recessive, dominant, and intermediate osteopetrosis." Frattini A., Pangrazio A., Susani L., Sobacchi C., Mirolo M., Abinun M., Andolina M., Flanagan A., Horwitz E.M., Mihci E., Notarangelo L.D., Ramenghi U., Teti A., Van Hove J., Vujic D., Young T., Albertini A., Orchard P.J., Vezzoni P., Villa A. J. Bone Miner. Res. 18:1740-1747(2003) [PubMed: 14584882] [Abstract] Cited for: VARIANTS OPTB4 ARG-240; ARG-249; VAL-332; TRP-526; PRO-614; PHE-744; GLN-767 AND TRP-767, VARIANTS OPTA2 ARG-215; GLN-286; PHE-490 AND VAL-677, VARIANT MET-418. |
| [14] | "DNA-based diagnosis of malignant osteopetrosis by whole-genome scan using a single-nucleotide polymorphism microarray: standardization of molecular investigations of genetic diseases due to consanguinity." Lam C.-W., Tong S.-F., Wong K., Luo Y.F., Tang H.-Y., Ha S.-Y., Chan M.H.-M. J. Hum. Genet. 52:98-101(2007) [PubMed: 17033731] [Abstract] Cited for: VARIANT OPTB4 PHE-261. |
| [15] | "Molecular and clinical heterogeneity in CLCN7-dependent osteopetrosis: report of 20 novel mutations." Pangrazio A., Pusch M., Caldana E., Frattini A., Lanino E., Tamhankar P.M., Phadke S., Lopez A.G., Orchard P., Mihci E., Abinun M., Wright M., Vettenranta K., Bariae I., Melis D., Tezcan I., Baumann C., Locatelli F. Sobacchi C.Hum. Mutat. 31:E1071-E1080(2010) [PubMed: 19953639] [Abstract] Cited for: VARIANTS OPTB4 PRO-132; SER-214; LEU-227 DEL; ARG-240; GLN-403; ARG-521; GLN-526; TRP-526; PRO-549; PRO-651; TRP-762 AND PRO-767, VARIANTS OPTA2 ARG-215; GLN-286; LEU-318; LEU-758; GLN-762 AND TRP-767. |
| + | Additional computationally mapped references. |
Web resources
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AF224741 mRNA. Translation: AAF34711.1. AK291404 mRNA. Translation: BAF84093.1. AL031705 Genomic DNA. No translation available. BC012737 mRNA. Translation: AAH12737.1. Z67743 mRNA. Translation: CAA91556.1. AJ001910 Genomic DNA. Translation: CAA05083.1. U88844 mRNA. Translation: AAB48530.1. |
| IPI | IPI00020524. |
| PIR | S68427. |
| RefSeq | NP_001107803.1. NM_001114331.1. NP_001278.1. NM_001287.4. |
| UniGene | Hs.459649. |
3D structure databases | |
| ProteinModelPortal | P51798. |
| SMR | P51798. Positions 624-796. |
| ModBase | Search... |
Protein-protein interaction databases | |
| STRING | P51798. |
Protein family/group databases | |
| TCDB | 2.A.49.3.3. chloride carrier/channel (ClC) family. |
PTM databases | |
| PhosphoSite | P51798. |
Polymorphism databases | |
| DMDM | 12644301. |
Proteomic databases | |
| PRIDE | P51798. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENST00000428756; ENSP00000404772; ENSG00000103249. |
| GeneID | 1186. |
| KEGG | hsa:1186. |
| UCSC | uc002clv.2. human. |
Organism-specific databases | |
| CTD | 1186. |
| GeneCards | GC16M001494. |
| H-InvDB | HIX0012684. |
| HGNC | HGNC:2025. CLCN7. |
| HPA | HPA043019. HPA043586. |
| MIM | 166600. phenotype. 602727. gene. 611490. phenotype. |
| neXtProt | NX_P51798. |
| Orphanet | 53. Albers-Schoenberg osteopetrosis. 667. Autosomal recessive malignant osteopetrosis. 210110. Intermediate osteopetrosis. |
| GenAtlas | Search... |
Phylogenomic databases | |
| eggNOG | prNOG14647. |
| HOVERGEN | HBG050985. |
| PhylomeDB | P51798. |
Gene expression databases | |
| ArrayExpress | P51798. |
| Bgee | P51798. |
| CleanEx | HS_CLCN7. |
| Genevestigator | P51798. |
| GermOnline | ENSG00000103249. Homo sapiens. |
Family and domain databases | |
| InterPro | IPR014743. Cl-channel_core. IPR001807. Cl-channel_volt-gated. IPR002249. Cl_channel-7. IPR000644. Cysta_beta_synth_core. [Graphical view] |
| Gene3D | G3DSA:1.10.3080.10. Cl-channel_core. 2 hits. |
| KO | K05016. |
| PANTHER | PTHR11689. Cl-channel_volt. 1 hit. |
| Pfam | PF00571. CBS. 2 hits. PF00654. Voltage_CLC. 1 hit. [Graphical view] |
| PRINTS | PR00762. CLCHANNEL. PR01118. CLCHANNEL7. |
| SMART | SM00116. CBS. 2 hits. [Graphical view] |
| SUPFAM | SSF81340. Cl-channel_core. 1 hit. |
| PROSITE | PS51371. CBS. 2 hits. [Graphical view] |
| ProtoNet | Search... |
Other | |
| NextBio | 4908. |
| SOURCE | Search... |
Entry information
| Entry name | CLCN7_HUMAN | ||||||||
| Accession | Primary (citable) accession number: P51798 Secondary accession number(s): A6NEJ7, A8K5T9, Q9NYX5 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
| Disclaimer | Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. | ||||||||
Relevant documents
| Human chromosome 16 Human chromosome 16: entries, gene names and cross-references to MIM |
| Human entries with polymorphisms or disease mutations List of human entries with polymorphisms or disease mutations |
| Human polymorphisms and disease mutations Index of human polymorphisms and disease mutations |
| MIM cross-references Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot |
| SIMILARITY comments Index of protein domains and families |

Clusters with