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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Gelfand, I. M. Kister, A. E. |
| Description | Author Affiliation: Gelfand IM ( Department of Mathematics, Rutgers University, New Brunswick, NJ 08903, USA. igelfand@math.rutgers.edu); |
| Abstract | Sequences of the variable heavy (VH) and kappa (Vkappa) domains of Ig structures were divided into 21 fragments that correspond to strands, loops, or parts of these structural units of the variable domains. Amino acid sequences of fragments (termed 'words') were collected from the 1,172 human heavy and 668 human kappa chains available in the Kabat database. Statistical analysis of words of 17 fragments was performed (fragments that comprise the complementary determining regions' fragments will not be discussed in this paper). The number of different words (those with different residues in at least one position) ranged, for various fragments, from 11 to 75 in the kappa chains, and from 23 to 189 in the heavy chains. The main result of this study is that very few keywords, or main patterns of words, were necessary to describe over 90% of the sequences (no more than two keywords per fragment in the kappa and no more than five per fragment in the heavy chains). No identical keywords were found for different fragments of the variable domains. Keywords of aligned fragments of the VH and Vkappa domains were different in all but two instances. Thus, knowing the keywords, one can determine whether any given small part of a sequence belongs to a heavy or kappa chain and predict its precise localization in the sequence. In addition, by using all of the keywords obtained through analysis of the Kabat database, it was possible to describe completely the sequences of the human VH and Vkappa germ-line segments. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 23 |
| Volume Number | 94 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 1997-12-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Computer Simulation Immunoglobulin Heavy Chains Genetics Immunoglobulin Variable Region Immunoglobulin Kappa-Chains Sequence Analysis Statistics As Topic Research Support, Non-U.S. Gov't Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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