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Genotyping The NARSA Collection. Barry N. Kreiswirth PHRI . - 8. - 56. - 16. - 16. - 8. - 26. - 84. - 28. - 0. Clinical Relevant Strains. Genotyping Methods. Pulsed-Field Gel Electrophoresis (PFGE) Multilocus Sequence Typing (MLST)
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Genotyping The NARSA Collection Barry N. Kreiswirth PHRI
- 8 - 56 - 16 - 16 - 8 - 26 - 84 - 28 - 0
Genotyping Methods • Pulsed-Field Gel Electrophoresis (PFGE) • Multilocus Sequence Typing (MLST) • Sequence protein A repeats (spa Typing)
MLST - Housekeeping Genes • Carbamate kinase (arcC) • Shikimate dehyrogenase (aroE) • Glycerol kinase (glpF) • Gunylate kinase (gmk) • Triosephosphate isomerase (tpi) • Phosphate acetyltransferase (pta) • Acetyl coenzyme A acetyltransferase (yqiL) Note: genes not scattered around the genome
MLST analysis of COL • Carbamate kinase Allele 3 • Shikimate dehyrogenase Allele 3 • Glycerol kinase Allele 1 • Guanylate kinase Allele 1 • Phosphate acetyltransferase Allele 4 • Triosephosphate isomerase Allele 4 • Acetyl coenzyme A acetyltransferase Allele 16 MLST = 3 3 1 1 4 4 16 = ST250
MLST analysis of USA300 • Carbamate kinase Allele 3 • Shikimate dehyrogenase Allele 3 • Glycerol kinase Allele 1 • Guanylate kinase Allele 1 • Phosphate acetyltransferase Allele 4 • Triosephosphate isomerase Allele 4 • Acetyl coenzyme A acetyltransferase Allele 3 MLST = 3 3 1 1 4 4 3 = ST8
MLST – Single Locus Variant (SLV) Strain: COL ST250 = 3 3 1 1 4 4 16 Strain: USA300 ST8 = 3 3 1 1 4 4 3 BOTH MEMBERS OF CLONAL COMPLEX 8
An MLST Clonal Complex (CC) – BURST Analysis Robinson & Enright - 2003, AAC;47:3926
MRSA – Major Lineages Defined by Multilocus Sequence Typing (MLST) Clonal Complex – 8 Archaic, USA300 Clonal Complex – 22 EMRSA 15 Clonal Complex - 45 Australian Clonal Complex – 5 North American Clonal Complex – 30 EMRSA 16
ST45 - Australian ST36 - EMRSA16 ST22 - EMRSA15 ST8 – Archaic/USA300 ST1 - MW2 ST5 - North American MRSA Major Lineages
ST45; USA600 ST36: USA200 ST22 – USA900 ST239: USA1100 ST72: USA700 ST59: USA1000 ST8: USA300, USA500 ST1: USA400 ST15: USA1100 ST5: USA100, USA800 MRSA - USA TYPES
spa Typing • Protein A gene (spa) • Present in all S. aureus strains • Sequence analysis of the variable number tandem repeats in the 3’ region of the S. aureus protein A gene
spa Typing • Sequence PCR amplicons of the repeat region • Amplicons range in size: ~200-600 bp • Web-based programs to analyze repeats • Ridom (Germany) - eGenomics (US) • Identify and name each repeat cassette • The repeat profile equals the spa type
MLST and spa Typing • Consensus between two typing methods • Database give comparable groups • spa typing - faster molecular clock
NARSA COLLECTION • Typed 208 / 242 isolates • 72 MRSA • MLST and spa typing • 49 Sequence Types (STs) • 79 spa Types • 101 different genotypes (ST and spa Types)
Spa16 WGKAKAOMQQQ Spa205 WGKAKAOMQQQQ Spa10 A2AKEEEMBKB Spa15 A2AKEEMBKB Spa278 XKAKB Spa73 XKAKBEMBKB Spa433 XKAX2BMB ST 36 ST 45 ST 30 Spa915 WFGKAKAO Spa158 WFGKAKAOMQQ Spa43 WGKAKAOMQ Spa33 WGKAKAOMQQ Spa16 WGKAKAOMQQQ Spa887 WGKAOMOMQQ Spa251 WGKKAKAOMQ Spa909 WGMKAKAOMQQ Spa468 XKAKAOMQQ Spa99 XKKAKAOMQQ Group 1a Spa295 ZZ2PNGKBKGOLB Spa469 ZZ2PGKBKGOLB ST 207 ST 10 Spa683 I2Z2EGJH2M Spa913 I2Z2EGMM Spa312 I2Z2EGMMJH2M Spa287 I2Z2EMMMJH2M Spa490 I2Z2GMJH2M Spa454 XMJH2M ST 121 Spa885 TJEJCMQOMOKR Spa113 TJEJNCMOMOKR Spa912 TJEJOCMOMOKR Spa382 TJJEJNF2MNF2MOMOKR ST 22 ST 182 Spa888 ZDMMMNNQMMMMO ST 49 Spa3 WGKAOMQ Spa1 YHGFMBQBLO Spa7 YHGCMBQBLO Spa59 YHGGFMBQBLO Spa68 YGCMBQBLO Spa363 YGFMBQBLO Spa882 YHGAMBQBLO ST 240 ST 239 ST 59 ST 50 Spa 17 ZDMDMNKB ST 8 ST 17 ST 20 Spa35 UJFKBPE Spa194 UJFKKPFKPE Spa131 UJJFKBPE Spa227 UJJJJFE Spa8 UKJFKBPE ST 55 Group 1b ST 1 ST 97 Spa 92 UJGFMBBPB ST 9 ST 15 Spa21 UJGBBGGJAGJ Spa90 UBGGJAGJ Spa232 TJMBBMDMGMK Spa29 TJMBMDMGGMK Spa2 TJMBMDMGMK Spa25 TJMDMGMK Spa24 TJMEMDMGMK Spa12 TJMGMK Spa230 TMBMDMGMK ST 5 ST 7 ST 101 ST 13 Spa916 ZFGU2DMGGU2 Spa867 ZGM Spa910 ZGU2 Spa2 TJMBMDMGMK Group 2 ST 25
NRS022 NRS027 NRS168 NRS169 NRS236 NRS029 NRS071 NRS283 NRS383 ST 36 ST 45 ST 30 NRS104 NRS112 NRS131 NRS162 NRS174 NRS176 NRS180 NRS181 NRS196 NRS204 NRS207 NRS210 NRS212 NRS213 NRS216 NRS219 NRS222 NRS223 NRS231 NRS246 NRS252 NRS261 NRS267 Group 1a ST 207 NRS113 NRS170 ST 10 NRS148 NRS153 NRS165 NRS166 NRS185 NRS186 NRS215 NRS217 NRS225 NRS228 NRS237 NRS239 NRS242 NRS258 NRS266 NRS230 NRS259 NRS152 NRS157 NRS161 NRS184 NRS232 NRS235 NRS271 NRS154 ST 121 ST 22 ST 182 NRS021 NRS026 NRS028 NRS073 NRS077 NRS106 NRS107 NRS108 NRS114 NRS128 NRS129 NRS130 NRS133 NRS134 NRS135 NRS136 NRS137 NRS139 NRS140 NRS141 NRS142 NRS144 NRS145 NRS146 NRS147 NRS150 NRS151 NRS156 NRS158 NRS171 NRS172 NRS211 NRS214 NRS251 NRS254 NRS257 NRS384 NRS385 ST 49 NRS178 ST 240 NRS054 NRS056 ST 239 ST 59 NRS241 NRS243 ST 50 ST 8 ST 17 ST 20 NRS072 NRS123 NRS192 NRS193 NRS194 NRS226 NRS229 NRS248 ST 55 Group 1b ST 1 NRS105 NRS220 NRS224 ST 97 ST 9 ST 15 NRS164 NRS183 NRS234 NRS250 ST 5 NRS001 NRS002 NRS003 NRS004 NRS011 NRS012 NRS013 NRS014 NRS017 NRS018 NRS019 NRS023 NRS024 NRS049 NRS051 NRS052 NRS068 NRS070 NRS076 NRS110 NRS126 NRS127 NRS149 NRS155 NRS173 NRS179 NRS238 NRS240 NRS244 NRS269 NRS382 NRS387 NRS402 NRS403 NRS404 ST 7 ST 101 ST 13 Group 2 ST 25 NRS102 NRS187 NRS227 NRS260
NRS022 NRS027 NRS168 NRS169 NRS236 VISA STRAINS NRS029 NRS071 NRS283 NRS383 ST 36 ST 45 ST 30 NRS104 NRS112 NRS131 NRS162 NRS174 NRS176 NRS180 NRS181 NRS196 NRS204 NRS207 NRS210 NRS212 NRS213 NRS216 NRS219 NRS222 NRS223 NRS231 NRS246 NRS252 NRS261 NRS267 Group 1a ST 207 NRS113 NRS170 ST 10 NRS148 NRS153 NRS165 NRS166 NRS185 NRS186 NRS215NRS217 NRS225 NRS228 NRS237 NRS239 NRS242 NRS258 NRS266 NRS230 NRS259 NRS152 NRS157 NRS161 NRS184 NRS232 NRS235 NRS271 NRS154 ST 121 ST 22 ST 182 NRS021 NRS026 NRS028 NRS073 NRS077 NRS106 NRS107 NRS108 NRS114 NRS128 NRS129 NRS130 NRS133 NRS134 NRS135 NRS136 NRS137 NRS139 NRS140 NRS141 NRS142 NRS144 NRS145 NRS146 NRS147 NRS150 NRS151 NRS156 NRS158 NRS171 NRS172 NRS211 NRS214 NRS251 NRS254 NRS257 NRS384 NRS385 ST 49 NRS178 ST 240 NRS054 NRS056 ST 239 ST 59 NRS241 NRS243 ST 50 ST 8 ST 17 ST 20 NRS072 NRS123 NRS192 NRS193 NRS194 NRS226 NRS229 NRS248 ST 55 Group 1b ST 1 NRS105 NRS220 NRS224 ST 97 ST 9 ST 15 NRS164 NRS183 NRS234 NRS250 NRS001 NRS002 NRS003 NRS004 NRS011 NRS012 NRS013 NRS014 NRS017 NRS018 NRS019 NRS023 NRS024 NRS049 NRS051 NRS052 NRS068 NRS070 NRS076 NRS110 NRS126 NRS127 NRS149 NRS155 NRS173 NRS179 NRS238 NRS240 NRS244 NRS269 NRS382 NRS387 NRS402 NRS403 NRS404 ST 5 ST 7 ST 101 ST 13 Group 2 ST 25 NRS102 NRS187 NRS227 NRS260
VRSA STRAINS ST 36 ST 45 ST 30 ST 207 ST 10 Group 1a Group 1b ST 121 ST 22 ST 182 ST 49 ST 240 ST 239 ST 59 ST 50 ST 8 ST 17 ST 20 ST 55 ST 1 Group 2 ST 97 ST 9 ST 15 VRSA 1 – spa 12: TJMGMK VRSA 2 – spa 1: TJMBMDMGMK VRSA 3 – spa 1: TJMBMDMGMK VRSA 4 – spa 1: TJMBMDMGMK VRSA 5 – spa 1: TJMBMDMGMK VRSA 6 – spa 1: TJMBMDMGMK VRSA 7 - spa 12: TJMGMK ST 5 ST 7 ST 101 ST5: USA100, USA800 ST 13 ST 25
RESEARCH STRAINS CC45: ST508: spa 715 - Becker CC30: ST36: spa 16 – MRSA252 (EMRSA16) CC30: ST30: spa 99 – Cowan CC30: ST30: spa 43 – PS80 CC30: ST30: spa 33 – MN8 CC121, ST121; spa 312 - Smith Diffuse CC22: ST22: spa type 113 – EMRSA15 CC8: ST8: spa 59 – 8325, 4220 CC8: ST8: spa 1 – Newman, USA300 CC1: ST1: spa 131 – MW2, 476 CC97; ST97: spa 92 – Wood 46 CC5: ST5: spa 2 – N315, MU50 CC5: ST5: spa 230 – 502A CC25: ST25: spa 868 – Reynolds Cooper and Feil - 2006, Microbiology;152:1297
Neighbor-Joining Tree of Concatenated MLST Allelic Sequences from the NARSA Collection CC45 CC30 CC1 CC5 CC8 ? CC8 CC1 ?
Neighbor-Joining Tree of Concatenated MLST Allelic Sequences from the NARSA Collection
582 CC 45 15 97 508 395 45 47 25 CC 1 CC 5 188 59 371 1 5 105 372 231 239 34 109 CC 8 CC 30 121 30 8 36 507 250 572 254 247 72 398 22 890 10 12 49 846 80 707 88 STs are indicated by single numbers eBURST of MLST data
NRS-001NRS-002NRS-003 NRS-004NRS-011NRS-012 NRS-013NRS-014NRS-017 NRS-018NRS-019NRS-023 NRS-024NRS-049NRS-051 NRS-052NRS-068 NRS-070 NRS-076 NRS-110 NRS-126 NRS-127 NRS-149 NRS-155 NRS-173 NRS-179 NRS-238 NRS-240 NRS-244 NRS-269 NRS-382 NRS-387 NRS-402 NRS-403NRS-404 NRS-022 NRS-027 NRS-168 NRS-169 NRS-236 582 NRS-105 NRS-220 NRS-224 NRS-233 CC 45 15 97 NRS-102 NRS-187 NRS-227 NRS-260 NRS-103 508 395 NRS-111 45 NRS-164 NRS-183 NRS-234 NRS-250 47 NRS-109 25 CC 1 CC 5 NRS-072 NRS-123 NRS-192 NRS-193 NRS-194 NRS-226 NRS-229 NRS-248 NRS-262 NRS-263 188 NRS-104 NRS-112 NRS-131 NRS-162 NRS-174 NRS-176 NRS-180 NRS-181 NRS-196 NRS-204 NRS-207 NRS-210 NRS-212 NRS-213 NRS-216 NRS-219 NRS-222 NRS-223 NRS-231 NRS-246 NRS-252 NRS-261 NRS-267 NRS-241 NRS-243 NRS-408 59 371 1 NRS-063 NRS-064 NRS-065 5 NRS-074 NRS-021 NRS-026 NRS-028 NRS-073 NRS-077 NRS-106 NRS-107 NRS-108 NRS-128 NRS-133 NRS-177 NRS-189 NRS-191 NRS-247 NRS-264 105 372 231 NRS-054 NRS-056 239 34 NRS-079 NRS-256 109 CC 8 CC 30 121 NRS-114 NRS-129 NRS-130 NRS-134 NRS-135 30 NRS-148 NRS-153 NRS-165 NRS-166 NRS-185 NRS-186 NRS-215 NRS-217 NRS-225 NRS-228 NRS-237 NRS-239 NRS-242 NRS-258 NRS-266 NRS-230 NRS-259 8 NRS-119 NRS-120 NRS-121 NRS-136 NRS-137 NRS-139 NRS-140 NRS-141 NRS-142 NRS-144 NRS-145 NRS-146 NRS-147 NRS-150 NRS-151 36 507 250 NRS-029 NRS-071 NRS-283 NRS-383 572 NRS-156 NRS-158 NRS-171 NRS-172 NRS-211 NRS-214 NRS-100 NRS-281 NRS-035 254 247 72 NRS-251 NRS-254 NRS-257 NRS-384 NRS-385 NRS-175 NRS-386 NRS-198 NRS-201 NRS-202 NRS-274 NRS-275 NRS-036NRS-037 NRS-039NRS-118 NRS-209 NRS-218 NRS-249 NRS-272 398 22 NRS-253 890 10 NRS-199 12 NRS152 NRS157 NRS161 NRS184 NRS232 NRS235 NRS271 NRS154 NRS167 49 846 NRS-182 NRS-190 80 707 NRS-113 NRS-170 NRS-143 NRS-205 NRS-255 NRS-178 NRS-203 88 eBURST of MLST database showing locations of strains in NARSA S. aureus collection NRS-265 STs are indicated by single numbers VISA/GISA strains are underlined dotted lines indicate recombination events
IN SUMMARY • NARSA Collection is representative of the species, but not comprehensive • MLST and spa provide an objective approach to distinguish the NARSA collection • How should the data be presented
GOING FORWARD • Should all strains be catalogued with both MLST and spa? • Should we extend the genotype/phenotype? • Focus only on research strains? • How to update the NARSA strain information
ST45; USA600 ST36: USA200 ST22 – USA900 ST239: USA1100 ST72: USA700 ST59: USA1000 ST8: USA300, USA500 ST1: USA400 ST15: USA1100 ST5: USA100, USA800 MRSA - USA TYPES