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NEWSLETTER #58, September 3, 1993

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1. Summary of CF mutations:

Name           Nucleotide      Exon       Consequence            Reference                         
               change                                                                              
L346P          T->C at 1169    7          Leu->Pro at 346        Constantinou-Deltas CD (July 5)   
Y301C          A->G at 1034    7          Tyr->Cys at 301        Constantinou-Deltas CD (July 23)  
G27E           G->A at 212     2          Gly->Glu at 27         Bienvenu T, Cazeneuve C, Kaplan   
                                                                 JC, Beldjord C (August 2)         
I1109T         T->C at 3458    17b        Ile->Thr at 1109       Claustres M, Laussel M,           
                                                                 Desgeorges M, Razakatzara G       
                                                                 (August 2)                        
L1254X         T->G at 3893    20         Leu->Stop at 1254      Wallace A, Tassabehji M (August   
                                                                 4)                                
4048insCC      insertion of    21         frameshift             Wallace A, Tassabehji M (August   
               CC after 4048                                     4)                                
L568X          T->A at 1835    12         Leu->Stop at 568       Macek M, Davis CL, Hamosh A,      
                                                                 Cutting GR (August 4)             
W1098X         G->A at 3425    17b        Trp->Stop at 1098      Macek M, Davis CL, Hamosh A,      
                                                                 Cutting GR (August 4)             
Q1411X         C->T at 4363    23         Gln->Stop at 1411      Costes B, Goossens M, Ghanem N    
                                                                 (August 18)                       
T1220I         C->T at 3791    19         Thr->Ile at 1220       Costes B, Goossens M, Ghanem N    
                                          (polymorphism?)        (August 18)                       
Q1238R         A->G at 3845    19         Gln->Arg at 1238       Férec C, Quere I, Verlingue C,    
                                                                 Audrezet MP, Raguenes O,          
                                                                 Guillermit H, Mercier B (August   
                                                                 18)                               
R1070W         C->T at 3340    17b        Arg->Trp at 1070       Macek M, Sedriks S, Kiesewetter   
                                                                 S, Cutting GR (August 20)         
D1168G         A->G at 3635    19         Asp->Gly at 1168       Macek M, Sedriks S, Kiesewetter   
                                                                 S, Cutting GR (August 20)         
W79X           G->A at 368     3          Trp->Stop at 79        Férec C, Quere I, Verlingue C,    
                                                                 Audrezet MP, Raguenes O,          
                                                                 Guillermit H, Mercier B (August   
                                                                 24)                               
1248+1G->A     G->A at 1248+1  intron 7   splicing mutation      Schwarz M, Malone G, Haworth A    
                                                                 (August 25)                       
G1244V         G->T at 3863    20         Gly->Val at 1244       Savov A, Angelicheva D,           
                                                                 Jordanova A, Kalydjieva L         
                                                                 (August 30)                       
Q207X          C->T at 751     6a         Gln->Stop at 207       Zielenski J, Markiewicz D, Tsui   
                                                                 L-C (Sept 2)                      
875+1G->C      G->C at 875+1   intron 6a  splicing mutation      Zielenski J, Markiewicz D, Tsui   
                                                                 L-C (Sept 2)                      
2991del32      deletion of     15         frameshift             Grade K, Grunewood I, Coutelle    
               32 bp from                                        C (Sept 3)                        
               2991                                                                                
3171insC       insetion of C   17a        frameshift             Grade K, Grunewood I, Coutelle    
               after 3171                                        C (Sept 3)                        

2. DNA sequence polymorphisms/variations in the coding region

Nucleotide position   Amino acid change          Exon    Reference                  
                                                                                    
4086T/C               no change (Val at 1318)    21      Claustres M, Laussel M,    
                                                         Desgeorges M,              
                                                         Razakatzara G (August 2)   

3. DNA sequence polymorphism elsewhere in the CF gene

Description           Location                                Reference                  
                                                                                         
1002-56C/G            C or G at position -56 of intron 6b     Claustres M, Laussel M,    
                                                              Razakatzara G (April 17)   
2790-21G/A            G or A at position -21 of intron 14     Claustres M, Laussel M,    
                                                              Desgeorges M,              
                                                              Razakatzara G (August 2)   

4. Malone G and Schwarz M is requesting genotype-phenotype data for E60X; anyone who wishes to contribute, please contact them by FAX +44 (61) 794 5929

5. A copy of the CF mutation table is attached. Please let me know any updates of the information in the table.

6. There is not much response about the location of this year's General Meeting. Please let me know if it is necessary to have any meetings. If it is necessary, there are two possibilities, but there is not much choice for the time slot at either locations.

(1) October 7 (Thursday) 6-7 pm, at The Annual Meeting of the American Society of Human Genetics in New Orleans; or

(2) October 14 (Thursday) 5:30-6:30, at The North American CF Conference in Dallas.

Please indicate your opinion below and return it to me by FAX.

Best wishes,

==========================================================

FAX to: Lap-Chee Tsui, +1 (416) 813-6015

Suggestions for the Annual General Meeting (please choose one):

______ Everything is fine; the Consortium should continue in its current format; no meeting necessary.

______ October 7 (Thursday) 6-7 pm, at The Annual Meeting of the American Society of Human Genetics in New Orleans

______ October 14 (Thursday) 5:30-6:30, at The North American CF Conference in Dallas

Other suggestions:

Name:

Alternative contact person:

Updates of FAX number, telephone number and FULL mailing address