1 LOCUS P35527 623 aa linear PRI 19-SEP-2006
2 DEFINITION Keratin, type I cytoskeletal 9 (Cytokeratin-9) (CK-9) (Keratin-9)
5 VERSION P35527 GI:81175178
6 DBSOURCE swissprot: locus K1C9_HUMAN, accession P35527;
8 extra accessions:O00109,Q14665
10 sequence updated: Nov 8, 2005.
11 annotation updated: Sep 19, 2006.
12 xrefs: Z29074.1, CAA82315.1, S69510.1, AAC60619.1, X75015.1,
13 CAA52924.1, AB001594.1, BAA19418.1, I37984
14 xrefs (non-sequence databases): HSSP:P08670, IntAct:P35527,
15 Ensembl:ENSG00000171403, KEGG:hsa:3857, HGNC:6447, MIM:144200,
16 MIM:607606, ArrayExpress:P35527, GO:0005200, GO:0008544,
17 InterPro:IPR011000, InterPro:IPR001664, InterPro:IPR002957,
18 Pfam:PF00038, PRINTS:PR01248, PROSITE:PS00226
19 KEYWORDS Coiled coil; Direct protein sequencing; Disease mutation;
20 Intermediate filament; Keratin.
21 SOURCE Homo sapiens (human)
23 Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
24 Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini;
25 Catarrhini; Hominidae; Homo.
26 REFERENCE 1 (residues 1 to 623)
27 AUTHORS Langbein,L., Heid,H.W., Moll,I. and Franke,W.W.
28 TITLE Molecular characterization of the body site-specific human
29 epidermal cytokeratin 9: cDNA cloning, amino acid sequence, and
30 tissue specificity of gene expression
31 JOURNAL Differentiation 55 (1), 57-71 (1993)
33 REMARK NUCLEOTIDE SEQUENCE [MRNA], AND PARTIAL PROTEIN SEQUENCE.
34 TISSUE=Foot sole tissue
35 Erratum:[Differentiation. 1994 Jan;55(2):164. PMID: 7511549]
36 REFERENCE 2 (residues 1 to 623)
37 AUTHORS Reis,A., Hennies,H.-C., Langbein,L., Digweed,M., Mischke,D.,
38 Dreschler,M., Schroek,E., Royer-Pokora,B., Franke,W.W., Sperling,K.
40 TITLE Keratin 9 gene mutations in epidermolytic palmoplantar keratoderma
42 JOURNAL Nat. Genet. 6 (2), 174-179 (1994)
44 REMARK NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND VARIANTS EPPK LYS-161;
46 REFERENCE 3 (residues 1 to 623)
47 AUTHORS Bienvenut,W.V.
49 REMARK PROTEIN SEQUENCE OF 14-29, AND MASS SPECTROMETRY.
50 TISSUE=Cervix carcinoma
51 REFERENCE 4 (residues 1 to 623)
52 AUTHORS Kobayashi,S., Tanaka,T., Matsuyoshi,N. and Imamura,S.
53 TITLE Keratin 9 point mutation in the pedigree of epidermolytic
54 hereditary palmoplantar keratoderma perturbs keratin intermediate
55 filament network formation
56 JOURNAL FEBS Lett. 386 (2-3), 149-155 (1996)
58 REMARK NUCLEOTIDE SEQUENCE [MRNA] OF 147-372, AND VARIANT EPPK GLN-163.
59 REFERENCE 5 (residues 1 to 623)
60 AUTHORS Rosen,E.M., Meromsky,L., Romero,R., Setter,E. and Goldberg,I.
61 TITLE Human placenta contains an epithelial scatter protein
62 JOURNAL Biochem. Biophys. Res. Commun. 168 (3), 1082-1088 (1990)
64 REMARK PROTEIN SEQUENCE OF 450-466.
65 REFERENCE 6 (residues 1 to 623)
66 AUTHORS Hennies,H.C., Zehender,D., Kunze,J., Kuster,W. and Reis,A.
67 TITLE Keratin 9 gene mutational heterogeneity in patients with
68 epidermolytic palmoplantar keratoderma
69 JOURNAL Hum. Genet. 93 (6), 649-654 (1994)
71 REMARK VARIANTS EPPK VAL-157 AND PRO-172.
72 REFERENCE 7 (residues 1 to 623)
73 AUTHORS Bonifas,J.M., Matsumura,K., Chen,M.A., Berth-Jones,J.,
74 Hutchison,P.E., Zloczower,M., Fritsch,P.O. and Epstein,E.H. Jr.
75 TITLE Mutations of keratin 9 in two families with palmoplantar
76 epidermolytic hyperkeratosis
77 JOURNAL J. Invest. Dermatol. 103 (4), 474-477 (1994)
79 REMARK VARIANT EPPK SER-161.
80 REFERENCE 8 (residues 1 to 623)
81 AUTHORS Torchard,D., Blanchet-Bardon,C., Serova,O., Langbein,L., Narod,S.,
82 Janin,N., Goguel,A.F., Bernheim,A., Franke,W.W., Lenoir,G.M. and
84 TITLE Epidermolytic palmoplantar keratoderma cosegregates with a keratin
85 9 mutation in a pedigree with breast and ovarian cancer
86 JOURNAL Nat. Genet. 6 (1), 106-110 (1994)
88 REMARK VARIANT EPPK TYR-161.
89 REFERENCE 9 (residues 1 to 623)
90 AUTHORS Rothnagel,J.A., Wojcik,S., Liefer,K.M., Dominey,A.M., Huber,M.,
92 TITLE Mutations in the 1A domain of keratin 9 in patients with
93 epidermolytic palmoplantar keratoderma
94 JOURNAL J. Invest. Dermatol. 104 (3), 430-433 (1995)
96 REMARK VARIANTS EPPK TRP-163 AND SER-168.
97 REFERENCE 10 (residues 1 to 623)
98 AUTHORS Endo,H., Hatamochi,A. and Shinkai,H.
99 TITLE A novel mutation of a leucine residue in coil 1A of keratin 9 in
100 epidermolytic palmoplantar keratoderma
101 JOURNAL J. Invest. Dermatol. 109 (1), 113-115 (1997)
103 REMARK VARIANT EPPK VAL-160.
104 REFERENCE 11 (residues 1 to 623)
105 AUTHORS Covello,S.P., Irvine,A.D., McKenna,K.E., Munro,C.S., Nevin,N.C.,
106 Smith,F.J., Uitto,J. and McLean,W.H.
107 TITLE Mutations in keratin K9 in kindreds with epidermolytic palmoplantar
108 keratoderma and epidemiology in Northern Ireland
109 JOURNAL J. Invest. Dermatol. 111 (6), 1207-1209 (1998)
111 REMARK VARIANTS EPPK THR-157; VAL-157 AND GLN-163.
112 COMMENT On Nov 8, 2005 this sequence version replaced gi:547748.
113 [FUNCTION] May serve an important special function either in the
114 mature palmar and plantar skin tissue or in the morphogenic program
115 of the formation of these tissues.
116 [SUBUNIT] Heterotetramer of two type I and two type II keratins.
117 [TISSUE SPECIFICITY] Expressed in the terminally differentiated
118 epidermis of palms and soles.
119 [DISEASE] Defects in KRT9 are a cause of epidermolytic palmoplantar
120 keratoderma (EPPK) [MIM:144200]; also abbreviated EHPPK. EPPK is an
121 autosomal dominant disease characterized by diffuse thickening of
122 the epidermis on the entire surface of palms and soles sharply
123 bordered with erythematous margins.
124 [MISCELLANEOUS] There are two types of cytoskeletal and
125 microfibrillar keratin, I (acidic) and II (neutral to basic) (40-55
126 and 56-70 kDa, respectively).
127 [SIMILARITY] Belongs to the intermediate filament family.
128 [CAUTION] Was originally (Ref.4) thought to be a 60 kDa chain of
129 placental scatter protein.
130 [WEB RESOURCE] NAME=Human Intermediate Filament Mutation Database;
131 URL='http://www.interfil.org'.
132 [WEB RESOURCE] NAME=GeneReviews;
133 URL='http://www.genetests.org/query?gene=KRT9'.
134 FEATURES Location/Qualifiers
136 /organism="Homo sapiens"
137 /db_xref="taxon:9606"
142 /product="Keratin, type I cytoskeletal 9"
145 /region_name="Mature chain"
146 /experiment="experimental evidence, no additional details
148 /note="Keratin, type I cytoskeletal 9.
149 /FTId=PRO_0000063640."
152 /region_name="Region of interest in the sequence"
153 /experiment="experimental evidence, no additional details
158 /region_name="Conflict"
159 /experiment="experimental evidence, no additional details
161 /note="SR -> T (in Ref. 1; AAC60619 and 2)."
164 /region_name="Compositionally biased region"
165 /experiment="experimental evidence, no additional details
170 /region_name="Filament"
171 /note="Intermediate filament protein; pfam00038"
175 /region_name="Region of interest in the sequence"
176 /experiment="experimental evidence, no additional details
181 /region_name="Region of interest in the sequence"
182 /experiment="experimental evidence, no additional details
187 /region_name="Variant"
188 /experiment="experimental evidence, no additional details
190 /note="M -> T (in EPPK). /FTId=VAR_010499."
193 /region_name="Variant"
194 /experiment="experimental evidence, no additional details
196 /note="M -> V (in EPPK). /FTId=VAR_010500."
199 /region_name="Variant"
200 /experiment="experimental evidence, no additional details
202 /note="L -> V (in EPPK). /FTId=VAR_010501."
205 /region_name="Variant"
206 /experiment="experimental evidence, no additional details
208 /note="N -> K (in EPPK). /FTId=VAR_003822."
211 /region_name="Variant"
212 /experiment="experimental evidence, no additional details
214 /note="N -> S (in EPPK). /FTId=VAR_010502."
217 /region_name="Variant"
218 /experiment="experimental evidence, no additional details
220 /note="N -> Y (in EPPK). /FTId=VAR_010503."
223 /region_name="Variant"
224 /experiment="experimental evidence, no additional details
226 /note="R -> Q (in EPPK). /FTId=VAR_003823."
229 /region_name="Variant"
230 /experiment="experimental evidence, no additional details
232 /note="R -> W (in EPPK). /FTId=VAR_003824."
235 /region_name="Variant"
236 /experiment="experimental evidence, no additional details
238 /note="L -> S (in EPPK). /FTId=VAR_003825."
241 /region_name="Variant"
242 /experiment="experimental evidence, no additional details
244 /note="Q -> P (in EPPK). /FTId=VAR_010504."
247 /region_name="Region of interest in the sequence"
248 /experiment="experimental evidence, no additional details
253 /region_name="Region of interest in the sequence"
254 /experiment="experimental evidence, no additional details
259 /region_name="Region of interest in the sequence"
260 /experiment="experimental evidence, no additional details
265 /region_name="Region of interest in the sequence"
266 /experiment="experimental evidence, no additional details
271 /region_name="Region of interest in the sequence"
272 /experiment="experimental evidence, no additional details
276 1 mscrqfsssy lsrsgggggg glgsggsirs sysrfsssgg rggggrfsss sgygggssrv
277 61 cgrggggsfg ysygggsggg fsasslgggf gggsrgfgga sgggysssgg fgggfgggsg
278 121 ggfgggygsg fgglggfggg agggdggilt anekstmqel nsrlasyldk vqaleeannd
279 181 lenkiqdwyd kkgpaaiqkn yspyyntidd lkdqivdltv gnnktlldid ntrmtlddfr
280 241 ikfemeqnlr qgvdadingl rqvldnltme ksdlemqyet lqeelmalkk nhkeemsqlt
281 301 gqnsgdvnve invapgkdlt ktlndmrqey eqliaknrkd ienqyetqit qiehevsssg
282 361 qevqssakev tqlrhgvqel eielqsqlsk kaaleksled tknrycgqlq miqeqisnle
283 421 aqitdvrqei ecqnqeysll lsikmrleke ietyhnlleg gqedfessga gkiglggrgg
284 481 sggsygrgsr ggsggsyggg gsgggygggs gsrggsggsy gggsgsgggs gggygggsgg
285 541 ghsggsgggh sggsggnygg gsgsgggsgg gygggsgsrg gsggshgggs gfggesggsy
286 601 gggeeasgsg ggygggsgks shs