ACTRT3: which of actin's residues survive, and has PAINT already rejected this term next door?

Generated by uv run python analyze_actrt3.py. Every number is computed at run time from
the UniProt REST API, RCSB coordinate files, QuickGO, and the repository's PANTHER/PAINT
export. Nothing here is hardcoded; re-running regenerates this file.

Structural machinery (contact detection, alignment, substitution classing, two-scheme
sensitivity) is deliberately identical to genes/human/ACTL8/ACTL8-bioinformatics/analyze_actl8.py
so the tallies are directly comparable with that merged sibling review.

Headline

Controls on the same three measurements:

Protein Role in the comparison Nucleotide site Profilin surface Filament interface
ACTRT3 target 15 identical, 2 conservative, 2 non-conservative, 0 gaps 14 identical, 2 conservative, 5 non-conservative, 0 gaps 13 identical, 5 conservative, 19 non-conservative, 1 gaps
ACTB human beta-actin; polymerises; IBA donor 19 identical, 0 conservative, 0 non-conservative, 0 gaps 21 identical, 0 conservative, 0 non-conservative, 0 gaps 37 identical, 1 conservative, 0 non-conservative, 0 gaps
ACTG1 human gamma-actin; polymerises; IBA donor 19 identical, 0 conservative, 0 non-conservative, 0 gaps 21 identical, 0 conservative, 0 non-conservative, 0 gaps 37 identical, 1 conservative, 0 non-conservative, 0 gaps
ACTA1 human alpha-skeletal actin; polymerises; IBA donor 18 identical, 1 conservative, 0 non-conservative, 0 gaps 20 identical, 1 conservative, 0 non-conservative, 0 gaps 38 identical, 0 conservative, 0 non-conservative, 0 gaps
ACTC1 human alpha-cardiac actin; polymerises; IBA donor 18 identical, 1 conservative, 0 non-conservative, 0 gaps 20 identical, 1 conservative, 0 non-conservative, 0 gaps 38 identical, 0 conservative, 0 non-conservative, 0 gaps
Arp53D Drosophila actin-like 53D; DIVERGENT and polymerises; IBA donor 16 identical, 3 conservative, 0 non-conservative, 0 gaps 18 identical, 2 conservative, 1 non-conservative, 0 gaps 29 identical, 4 conservative, 5 non-conservative, 0 gaps
ACTR1A human alpha-centractin/Arp1; polymerises in dynactin 14 identical, 4 conservative, 1 non-conservative, 0 gaps 16 identical, 4 conservative, 1 non-conservative, 0 gaps 20 identical, 8 conservative, 10 non-conservative, 0 gaps
ACTR1B human beta-centractin/Arp1B; polymerises in dynactin 14 identical, 4 conservative, 1 non-conservative, 0 gaps 16 identical, 3 conservative, 2 non-conservative, 0 gaps 21 identical, 7 conservative, 10 non-conservative, 0 gaps
ACTR10 human Arp11; does NOT homopolymerise 9 identical, 2 conservative, 8 non-conservative, 0 gaps 6 identical, 2 conservative, 13 non-conservative, 0 gaps 9 identical, 5 conservative, 12 non-conservative, 12 gaps
ACTR2 human Arp2 16 identical, 3 conservative, 0 non-conservative, 0 gaps 10 identical, 4 conservative, 7 non-conservative, 0 gaps 15 identical, 7 conservative, 16 non-conservative, 0 gaps
ACTR3 human Arp3 14 identical, 4 conservative, 1 non-conservative, 0 gaps 9 identical, 3 conservative, 9 non-conservative, 0 gaps 5 identical, 3 conservative, 29 non-conservative, 1 gaps
ACTL8 human actin-like 8; merged review REMOVEd its filament rows 11 identical, 3 conservative, 5 non-conservative, 0 gaps 6 identical, 4 conservative, 11 non-conservative, 0 gaps 8 identical, 3 conservative, 24 non-conservative, 3 gaps
ACTRT1 human ARP-T1; same CDD clade as ACTRT3 14 identical, 2 conservative, 3 non-conservative, 0 gaps 13 identical, 4 conservative, 4 non-conservative, 0 gaps 13 identical, 8 conservative, 17 non-conservative, 0 gaps
ACTRT2 human ARP-T2 / ARPM2; same CDD clade as ACTRT3 13 identical, 4 conservative, 2 non-conservative, 0 gaps 13 identical, 4 conservative, 4 non-conservative, 0 gaps 14 identical, 6 conservative, 18 non-conservative, 0 gaps
ACTL7A human actin-like 7A; PT protein, ACTRT3 co-IP partner 12 identical, 2 conservative, 5 non-conservative, 0 gaps 11 identical, 5 conservative, 5 non-conservative, 0 gaps 13 identical, 1 conservative, 24 non-conservative, 0 gaps
ACTL7B human actin-like 7B 13 identical, 0 conservative, 6 non-conservative, 0 gaps 7 identical, 3 conservative, 10 non-conservative, 1 gaps 14 identical, 2 conservative, 22 non-conservative, 0 gaps
ACTL9 human actin-like 9 11 identical, 4 conservative, 4 non-conservative, 0 gaps 8 identical, 4 conservative, 9 non-conservative, 0 gaps 11 identical, 5 conservative, 22 non-conservative, 0 gaps
ACTL10 human actin-like 10 7 identical, 3 conservative, 4 non-conservative, 5 gaps 4 identical, 0 conservative, 15 non-conservative, 2 gaps 3 identical, 2 conservative, 13 non-conservative, 20 gaps

Ranking within the divergent clade

Chemically compatible contacts (identical + conservative) for the eight divergent human
actin-like / actin-related-T proteins, all computed in this run:

Contact set n Ranking, best first
nucleotide_site 19 ACTRT3 17, ACTRT2 17, ACTRT1 16, ACTL9 15, ACTL7A 14, ACTL8 14, ACTL7B 13, ACTL10 10
profilin_interface 21 ACTRT1 17, ACTRT2 17, ACTRT3 16, ACTL7A 16, ACTL9 12, ACTL7B 10, ACTL8 10, ACTL10 4
filament_interface 38 ACTRT1 21, ACTRT2 20, ACTRT3 18, ACTL7B 16, ACTL9 16, ACTL7A 14, ACTL8 11, ACTL10 5

Alignment sensitivity

Same tallies under a second substitution matrix and gap model, for ACTRT3 only:

Scheme Nucleotide site Profilin surface Filament interface
BLOSUM62/-11/-1 15/2/2/0 14/2/5/0 13/5/19/1
BLOSUM45/-14/-2 15/2/2/0 14/2/5/0 13/5/19/1

(identical / conservative / non-conservative / gap)

Per-residue tables

Nucleotide site (2BTF chain A, ['ATP', 'SR'], 4.0 Å)

Structure residue Contacts min dist (Å) ACTRT3 ACTB Arp53D ACTR1A ACTR10 ACTL8 ACTRT1 ACTRT2
G13 (GLY) ATP 3.32 G13 G13 G19 G17 G21 G11 G17 G17
S14 (SER) ATP 2.87 S14 S14 S20 S18 E22 ** S12 S18 S18
G15 (GLY) ATP 2.64 G15 G15 G21 G19 A23 ~ G13 G19 G19
M16 (MET) ATP 2.66 M16 M16 V22 ~ V20 ~ F24 ~ F14 ~ L20 ~ F20 ~
K18 (LYS) ATP 3.37 K18 K18 K24 K22 K26 K16 K22 K22
Q137 (GLN) SR 3.02 Q136 Q137 Q142 Q142 S123 ** Q132 H140 ** Q141
G156 (GLY) ATP 3.24 G155 G156 G161 G161 G142 G151 G159 G160
D157 (ASP) ATP 2.64 A156 ** D157 D162 D162 Y143 ** Y152 ** D160 D161
G158 (GLY) ATP 2.88 G157 G158 G163 G163 R144 ** G153 G161 A162 ~
V159 (VAL) ATP 3.13 V158 V159 V164 V164 E145 ** L154 ~ V162 V163
G182 (GLY) ATP 3.43 G181 G182 G187 G187 G168 G177 G185 G186
K213 (LYS) ATP 2.87 K212 K213 K218 K218 K211 Q208 ** K216 K217
E214 (GLU) ATP 2.8 E213 E214 E219 E219 A212 ** M209 ** E217 K218 **
G301 (GLY) ATP 3.45 G298 G301 G302 G302 G307 G299 G302 G303
G302 (GLY) ATP 2.94 G299 G302 G303 G303 G308 G300 G303 G304
T303 (THR) ATP 3.35 S300 ~ T303 T304 S304 ~ T309 N301 ** T304 T305
M305 (MET) ATP 3.55 S302 ** M305 M306 L306 ~ M311 L303 ~ L306 ~ L307 ~
Y306 (TYR) ATP 3.23 F303 ~ Y306 F307 ~ F307 ~ L312 ** Y304 L307 ** F308 ~
K336 (LYS) ATP 3.08 K333 K336 R337 ~ L337 ** A350 ** N334 ** C337 ** W338 **

Profilin surface (same structure, contacts to the profilin chain)

Structure residue Contacts min dist (Å) ACTRT3 ACTB Arp53D ACTR1A ACTR10 ACTL8 ACTRT1 ACTRT2
K113 (LYS) GLU 3.07 L112 ** K113 K118 R118 ~ S99 ** P108 ** R116 ~ R117 ~
Y133 (TYR) HIS 3.39 Y132 Y133 Y138 F138 ~ L119 ** L128 ** Y136 Y137
Y166 (TYR) ARG, LYS, SER, THR 2.99 F165 ~ Y166 Y171 Y171 Y152 H161 ** F169 ~ F170 ~
E167 (GLU) ARG, THR 3.5 E166 E167 E172 E172 E153 Q162 ** E170 E171
Y169 (TYR) ARG, ASN, GLY, HIS, ILE 2.97 Y168 Y169 F174 ~ F174 ~ I155 ** R164 ** Y172 Y173
A170 (ALA) ILE 3.85 C169 ** A170 A175 A175 P156 ** P165 ** S173 ** S174 **
P172 (PRO) ILE 3.5 P171 P172 P177 P177 L158 ** P167 P175 P176
H173 (HIS) PHE 3.41 H172 H173 H178 H178 N159 ** A168 ** H176 H177
K284 (LYS) PHE, VAL 3.8 K281 K284 N285 ** K285 Q290 ** S282 ** K285 K286
C285 (CYS) PHE, VAL 3.29 C282 C285 C286 S286 ** C291 C283 C286 C287
D286 (ASP) LYS, PHE, SER, VAL 2.86 D283 D286 D287 D287 P292 ** E284 ~ D287 D288
V287 (VAL) VAL 2.82 T284 ** V287 M288 ~ M288 ~ I293 ~ I285 ~ T288 ** T289 **
D288 (ASP) LYS 3.29 G285 ** D288 D289 D289 D294 S286 ** D289 D290
R290 (ARG) VAL 3.08 R287 R290 R291 R291 R296 R288 Q291 ** Q292 **
M355 (MET) HIS 3.89 M352 M355 M356 M356 R371 ** E353 ** M356 M357
E361 (GLU) LYS 3.22 E358 E361 E362 E362 Y377 ** E359 D362 ~ D363 ~
E364 (GLU) GLU, LYS 3.12 E361 E364 E365 E365 Q380 ** E362 E365 E366
H371 (HIS) ARG 2.82 H368 H371 H372 H372 K410 ~ H363 Q372 ** Q373 **
R372 (ARG) ASN, GLU, GLY, THR, TYR 2.59 Q369 ** R372 R373 R373 R411 M364 ** R373 R374
K373 (LYS) GLY, HIS 3.37 R370 ~ K373 K374 K374 A412 ** R365 ~ R374 ~ R375 ~
F375 (PHE) ARG, ASP, GLY 3.31 F372 F375 F376 F376 S414 ** M366 ~ F376 F377

Filament protomer interface (6DJO)

Structure residue Contacts min dist (Å) ACTRT3 ACTB Arp53D ACTR1A ACTR10 ACTL8 ACTRT1 ACTRT2
P38 (PRO) A 3.61 A38 ** P38 P44 P42 gap P37 C42 ** L42 **
R39 (ARG) A, B 3.43 K39 ~ R39 R45 K43 ~ gap C38 ** K43 ~ K43 ~
H40 (HIS) A 3.39 G40 ** H40 H46 H44 gap K39 ~ F44 ** F44 **
Q41 (GLN) A 3.86 Q41 Q41 L47 ** V45 ** gap E40 ** N45 ~ Q45
G42 (GLY) A 3.35 S42 ** G42 N48 ** R46 ** gap N41 ** V46 ** A46 ~
V43 (VAL) A 3.17 gap V43 V49 V47 gap P42 ** P47 ** P47 **
M44 (MET) A 3.13 R43 ** M44 L50 ~ M48 gap G43 ** L48 ~ S48 **
V45 (VAL) A 3.56 A44 ** V45 L51 ~ A49 ** gap P44 ** A49 ** A49 **
M47 (MET) A 3.79 Q46 ** M47 S53 ** A51 ** gap Y46 ** L51 ~ A51 **
Q49 (GLN) A 3.94 G48 ** Q49 I55 ** E53 ** gap R48 ** Q53 Q53
K61 (LYS) A 2.79 W60 ** K61 K67 H65 ~ P49 ** P60 ** K64 K65
R62 (ARG) A 2.99 R61 R62 R68 R66 K50 ~ D61 ** Y65 ** Q66 **
G63 (GLY) A 2.88 S62 ** G63 G69 G67 P51 ** gap E66 ** E67 **
I64 (ILE) A 3.57 S63 ** I64 I70 L68 ~ V52 ~ gap A67 ** A68 **
L65 (LEU) B 3.46 L64 L65 L71 L69 R53 ** gap L68 L69
T66 (THR) B 3.22 F65 ** T66 T72 S70 ~ V54 ** T62 H69 ** Q70 **
L67 (LEU) B 3.85 I66 ~ L67 L73 I71 ~ V55 ~ F63 ~ L70 L71
L110 (LEU) D 3.28 L109 L110 L115 L115 L96 L105 L113 L114
P112 (PRO) D 3.36 P111 P112 P117 P117 P98 E107 ** P115 P116
K113 (LYS) D 3.11 L112 ** K113 K118 R118 ~ S99 ** P108 ** R116 ~ R117 ~
H173 (HIS) D 3.35 H172 H173 H178 H178 N159 ** A168 ** H176 H177
K191 (LYS) B 3.91 V190 ** K191 K196 L196 ** T177 ** K186 R194 ~ Q195 **
T194 (THR) B 3.28 K193 ** T194 L199 ** R199 ** L180 ** F189 ** F197 ** L198 **
E195 (GLU) B 3.1 N194 ** E195 E200 K200 ** E181 K190 ** A198 ** A199 **
G197 (GLY) B 3.64 G196 G197 G202 G202 C183 ** D192 ** G200 G201
T202 (THR) B 3.55 S201 ~ T202 T207 S207 ~ S188 ~ C197 ** C205 ** C206 **
T203 (THR) B 3.32 A202 ** T203 S208 ~ S208 ~ V189 ** L198 ** I206 ** Q207 **
A204 (ALA) A 3.14 S203 ** A204 A209 S209 ** A190 F199 ** L207 ** L208 **
E205 (GLU) A 3.02 D204 ~ E205 E210 E210 K191 ** Q200 ** N208 ** D209 ~
I208 (ILE) A 3.35 I207 I208 I213 I213 V206 ~ T203 ** V211 ~ L212 ~
E241 (GLU) A 2.82 Q238 ** E241 E242 Y242 ** E238 Q239 ** R242 ** K243 **
L242 (LEU) A 3.76 L239 L242 L243 L243 R239 ** L240 L243 L244
P243 (PRO) A 3.67 P240 P243 P244 P244 P240 P241 P244 P245
D244 (ASP) A 3.25 D241 D244 D245 D245 D251 D242 D245 D246
G245 (GLY) A 3.44 G242 G245 G246 G246 G252 G243 G246 G247
I267 (ILE) B 3.48 M264 ~ L267 ~ L268 ~ I268 gap F265 ~ L268 ~ L269 ~
G268 (GLY) D 3.88 N265 ** G268 G269 G269 gap E266 ** G269 G270
E270 (GLU) D 3.15 E267 E270 E271 E271 E276 P268 ** H271 ** Q272 **

~ conservative, ** non-conservative, gap no aligned residue.

PAINT's own handling of GO:0005200 inside PTHR11937

Node Date Other terms curated at that node Human genes at the node
PTN000233752 20250805 GO:0005737, GO:0006338, GO:0006355, GO:0030234, GO:0031011 ACTR5
PTN000233887 20250805 GO:0000812, GO:0006338, GO:0007000, GO:0031491 ACTR6
PTN000234048 20250805 GO:0003729, GO:0006302, GO:0006355, GO:0031011 ACTR8
PTN001732543 20250805 GO:0003682, GO:0006338, GO:0006357, GO:0016514, GO:0035267 ACTL6A, ACTL6B
PTN008986528 20250805 GO:0005198 ACTL7A, ACTL7B
PTN000233596 20260416 GO:0005885, GO:0005938, GO:0034314, GO:0051015 ACTR2
PTN000233796 20260416 GO:0005885, GO:0034314, GO:0044396, GO:0051015 ACTR3, ACTR3B, ACTR3C
PTN007551901 20260416 GO:0106006 ACTR1A, ACTR1B
Node Date GO:0005200 also rejected here Human genes at the node
PTN008986528 20250805 True ACTL7A, ACTL7B

ACTRT3's own donating nodes are ['PTN000940351', 'PTN002631484']; GO:0005200 is rejected on that path at: no node.

Donor versus recipient composition of ACTRT3's two donating nodes

PTN000940351

Gene Accession Length % identity to ACTB (local)
ACTA2 P62736 377 94.1
ACTC1 P68032 377 94.1
ACTA1 P68133 377 93.6
ACTG2 P63267 376 93.6
ACTRT3 Q9BYD9 372 49.7
ACTRT1 Q8TDG2 376 48.9
ACTRT2 Q8TDY3 377 48.7
ACTL7B Q9Y614 415 44.5
ACTL7A Q9Y615 435 44.1
ACTL9 Q8TC94 416 41.4
ACTL10 Q5JWF8 245 33.7
ACTR10 Q9NZ32 417 25.9

PTN002631484

Gene Accession Length % identity to ACTB (local)
ACTB P60709 375 100.0
ACTG1 P63261 375 98.9
ACTA2 P62736 377 94.1
ACTC1 P68032 377 94.1
ACTA1 P68133 377 93.6
ACTG2 P63267 376 93.6
POTEE Q6S8J3 1075 92.0
ACTBL2 Q562R1 376 91.7
POTEF A5A3E0 1075 91.7
POTEKP Q9BYX7 375 91.5
POTEI P0CG38 1075 91.2
POTEJ P0CG39 1038 90.7
ACTRT3 Q9BYD9 372 49.7
ACTRT1 Q8TDG2 376 48.9
ACTRT2 Q8TDY3 377 48.7
ACTL9 Q8TC94 416 41.4
ACTL8 Q9H568 366 33.8
ACTL10 Q5JWF8 245 33.7

Relatives census, recomputed from QuickGO

ACTL8 carries 11 IBA rows; ACTRT3 carries 2; the median across the other seven divergent relatives is 2.

Gene IBA rows PANTHER nodes IBA terms
ACTL10 2 PTN000940351, PTN002631484 GO:0005200, GO:0015629
ACTL7A 3 PTN000940351, PTN001377938, PTN008986520, PTN008986528 GO:0005198, GO:0005634, GO:0005737
ACTL7B 3 PTN000940351, PTN001377938, PTN008986520, PTN008986528 GO:0005198, GO:0005634, GO:0005737
ACTL8 11 PTN002631484, PTN002631586, PTN007551913 GO:0005737, GO:0005884, GO:0007409, GO:0015629, GO:0016020, GO:0019901, GO:0030424, GO:0035267, GO:0045202, GO:0048870, GO:0098973
ACTL9 2 PTN000940351, PTN002631484 GO:0005200, GO:0015629
ACTRT1 5 PTN000748066, PTN000940351, PTN002631484 GO:0003682, GO:0005200, GO:0005634, GO:0006355, GO:0015629
ACTRT2 2 PTN000940351, PTN002631484 GO:0005200, GO:0015629
ACTRT3 2 PTN000940351, PTN002631484 GO:0005200, GO:0015629

The mouse orthologue behind the only experimental evidence

Its complete annotation set, so that any row without a human counterpart is visible:

GO id Aspect Ev Qualifier Reference WITH/FROM Resolved experimental partner
GO:0005200 MO IBA enables GO_REF:0000033 MGI:MGI:87906, PANTHER:PTN000940351, RGD:1304556, SGD:S000001171, SGD:S000001855, SGD:S000002513, UniProtKB:P60709, UniProtKB:P61158, UniProtKB:P61160, dictyBase:DDB_G0269234, dictyBase:DDB_G0289811 —
GO:0005515 MO IPI enables PMID:18692047 UniProtKB:Q9DAD6 Q9DAD6 ['Pfn3'] (Swiss-Prot, Mus musculus)
GO:0005515 MO IPI enables PMID:18692047 UniProtKB:Q9DAD6 Q9DAD6 ['Pfn3'] (Swiss-Prot, Mus musculus)
GO:0007010 BI IEA involved_in GO_REF:0000108 GO:0005200 —
GO:0015629 CE IBA is_active_in GO_REF:0000033 CGD:CAL0000191211, FB:FBgn0011743, MGI:MGI:87906, MGI:MGI:87909, PANTHER:PTN002631484, PomBase:SPBC32H8.12c, RGD:1304556, RGD:621676, RGD:628837, SGD:S000001855, UniProtKB:P08023, UniProtKB:P60709, UniProtKB:P63261, UniProtKB:P68032, UniProtKB:P68133, UniProtKB:Q6QAQ1, UniProtKB:Q8I4X0, WB:WBGene00000064, WB:WBGene00000065, WB:WBGene00000066, WB:WBGene00000067, dictyBase:DDB_G0269234, dictyBase:DDB_G0275023, dictyBase:DDB_G0289487, dictyBase:DDB_G0289811 —
GO:0001673 CE IDA located_in PMID:18692047 — —
GO:0005634 CE IEA located_in GO_REF:0000044 UniProtKB-SubCell:SL-0191 —
GO:0005737 CE IEA located_in GO_REF:0000044 UniProtKB-SubCell:SL-0086 —
GO:0005856 CE IEA located_in GO_REF:0000044 UniProtKB-SubCell:SL-0090 —
GO:0033011 CE IDA located_in PMID:35793634 — —