Abstract:
:The homodimeric transmembrane receptor natriuretic peptide receptor B (NPR-B [also known as guanylate cyclase B, GC-B, and GUC2B]; gene name NPR2) produces cytoplasmic cyclic GMP from GTP on binding its extracellular ligand, C-type natriuretic peptide (CNP). CNP has previously been implicated in the regulation of skeletal growth in transgenic and knockout mice. The autosomal recessive skeletal dysplasia known as "acromesomelic dysplasia, type Maroteaux" (AMDM) maps to an interval that contains NPR2. We sequenced DNA from 21 families affected by AMDM and found 4 nonsense mutations, 4 frameshift mutations, 2 splice-site mutations, and 11 missense mutations. Molecular modeling was used to examine the putative protein change brought about by each missense mutation. Three missense mutations were tested in a functional assay and were found to have markedly deficient guanylyl cyclase activity. We also found that obligate carriers of NPR2 mutations have heights that are below the mean for matched controls. We conclude that, although NPR-B is expressed in a number of tissues, its major role is in the regulation of skeletal growth.
journal_name
Am J Hum Genetjournal_title
American journal of human geneticsauthors
Bartels CF,Bükülmez H,Padayatti P,Rhee DK,van Ravenswaaij-Arts C,Pauli RM,Mundlos S,Chitayat D,Shih LY,Al-Gazali LI,Kant S,Cole T,Morton J,Cormier-Daire V,Faivre L,Lees M,Kirk J,Mortier GR,Leroy J,Zabel B,Kim CA,doi
10.1086/422013subject
Has Abstractpub_date
2004-07-01 00:00:00pages
27-34issue
1eissn
0002-9297issn
1537-6605pii
S0002-9297(07)61990-9journal_volume
75pub_type
杂志文章abstract::We have evaluated eight patients with pigmentary anomalies reminiscent of incontinentia pigmenti or hypomelanosis of Ito. All demonstrated abnormal lymphocyte karyotypes with chromosomal mosaicism in lymphocytes and/or skin fibroblasts. In seven the skin was darkly pigmented, and in all of these seven cases the abnorm...
journal_title:American journal of human genetics
pub_type: 杂志文章,评审
doi:
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journal_title:American journal of human genetics
pub_type: 杂志文章
doi:
更新日期:1995-08-01 00:00:00
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journal_title:American journal of human genetics
pub_type: 杂志文章
doi:
更新日期:1989-07-01 00:00:00
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pub_type: 杂志文章
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journal_title:American journal of human genetics
pub_type: 杂志文章
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更新日期:1978-01-01 00:00:00
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journal_title:American journal of human genetics
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更新日期:1991-08-01 00:00:00
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journal_title:American journal of human genetics
pub_type: 杂志文章
doi:
更新日期:1996-06-01 00:00:00
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pub_type: 杂志文章
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journal_title:American journal of human genetics
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doi:
更新日期:1991-11-01 00:00:00
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journal_title:American journal of human genetics
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更新日期:1991-04-01 00:00:00
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journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1086/302415
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journal_title:American journal of human genetics
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doi:
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journal_title:American journal of human genetics
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doi:
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doi:
更新日期:1995-10-01 00:00:00
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journal_title:American journal of human genetics
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journal_title:American journal of human genetics
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doi:
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journal_title:American journal of human genetics
pub_type: 评论,杂志文章
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